Performance Indicators
This section lists performance indicators that can be monitored by DeviceManager as well as information pertaining to them including: their description and significance, how to create templates, operations, and performance.
Indicator |
Definition |
|---|---|
Read Requests to the Snapshot LUN |
Number of read requests to the snapshot volume in a performance statistical period after the virtual snapshot function is activated. The number is an accumulated value. |
Read Requests Redirected to the Source LUN |
Number of read requests redirected from the snapshot LUN to the source LUN (including the source LUN data volume and COW volume) in a performance statistical period after the virtual snapshot function is activated. The number is an accumulated value. |
Write Requests to the Snapshot LUN |
Number of write requests to the virtual snapshot volume in a performance statistical period after the virtual snapshot function is activated. The number is an accumulated value. |
Write Requests Less than the Grain Size to the Snapshot LUN |
Write requests to the virtual snapshot LUN insufficient for the grain size in a statistical period |
Indicator |
Definition |
|---|---|
Usage (%) |
Request processing time and queuing time/Statistical period |
Queue Length |
Number of requests being processed and waiting to be processed at a specific point of time |
Total IOPS |
Average number of read and write requests processed by a module per second |
Avg. read I/O size(KB) |
Average read I/O size from the last sampling time point till now |
Read IOPS |
Average number of read requests processed by a module per second |
Avg. write I/O size(KB) |
Average write I/O size from the last sampling time point till now |
Write IOPS(IO/s) |
Number of write requests processed by a module per second |
Read I/O Granularity Distribution: [0K,4K)(%) |
Read I/O Granularity Distribution: [0K,4K) (%) |
Read I/O Granularity Distribution: [4 KB, 8 KB) (%) |
Read I/O granularity distribution: [4 K, 8 K) (%) |
Read I/O Granularity Distribution: [8 KB, 16 KB) (%) |
Read I/O granularity distribution: [8 K, 16 K) (%) |
Read I/O Granularity Distribution: [16 KB, 32 KB) (%) |
Read I/O granularity distribution: [16 K, 32 K) (%) |
Read I/O Granularity Distribution: [32 KB, 64 KB) (%) |
Read I/O granularity distribution: [32 K, 64 K) (%) |
Read I/O Granularity Distribution: [64 KB, 128 KB) (%) |
Read I/O granularity distribution: [64 K, 128 K) (%) |
Read I/O Granularity Distribution: [128K,+∞)(%) |
Read I/O Granularity Distribution: [128K,+∞) (%) |
Write I/O Granularity Distribution: [0K,4K)(%) |
Write I/O Granularity Distribution: [0K,4K) (%) |
Write I/O Granularity Distribution: [4 KB, 8 KB) (%) |
Write I/O granularity distribution: [4 K, 8 K) (%) |
Write I/O Granularity Distribution: [8 KB, 16 KB) (%) |
Write I/O granularity distribution: [8 K, 16 K) (%) |
Write I/O Granularity Distribution: [16 KB, 32 KB) (%) |
Write I/O granularity distribution: [16 K, 32 K) (%) |
Write I/O Granularity Distribution: [32 KB, 64 KB) (%) |
Write I/O granularity distribution: [32 K, 64 K) (%) |
Write I/O Granularity Distribution: [64 KB, 128 KB) (%) |
Write I/O granularity distribution: [64 K, 128 K) (%) |
Write I/O Granularity Distribution: [128K,+∞)(%) |
Write I/O Granularity Distribution: [128K,+∞) (%) |
Avg. I/O Response Time (us) |
Time of processing a request within a statistical period, including the waiting time. |
Avg. Read I/O Response Time (us) |
Average read I/O response time within a statistical period. By default, one statistical period is five seconds. |
Avg. Write I/O Response Time (us) |
Average write I/O response time within a statistical period. By default, one statistical period is five seconds. |
Ratio of read I/Os to total I/Os(%) |
Ratio of read I/Os to total I/Os |
Ratio of write I/Os to total I/Os(%) |
Ratio of write I/Os to total I/Os |
Transmitting Bandwidth for Replication (KB/s) |
Volume of data that is sent from the local device to a remote device every second |
Receiving Bandwidth for Replication (KB/s) |
Volume of data that is received from a remote device to the local device per second |
Block Bandwidth (MB/s) |
Average amount of read and write request data processed by a module per second |
Read Bandwidth (MB/s) |
Bandwidth of all read operations on a specified file system (including forwarding ends) |
Write Bandwidth (MB/s) |
Average write request data amount processed by a module per second |
Indicator |
Definition |
|---|---|
Total IOPS |
Average number of read and write requests processed by a module per second |
Avg. I/O Response Time (us) |
Time of processing a request within a statistical period, including the waiting time. |
Block Bandwidth (MB/s) |
Average amount of read and write request data processed by a module per second |
Indicator |
Definition |
|---|---|
Total IOPS |
Average number of read and write requests processed by a module per second |
Read IOPS |
Average number of read requests processed by a module per second |
Write IOPS(IO/s) |
Number of write requests processed by a module per second |
Avg. I/O Response Time (us) |
Time of processing a request within a statistical period, including the waiting time. |
Avg. Read I/O Response Time (us) |
Average read I/O response time within a statistical period. By default, one statistical period is five seconds. |
Avg. Write I/O Response Time (us) |
Average write I/O response time within a statistical period. By default, one statistical period is five seconds. |
Block Bandwidth (MB/s) |
Average amount of read and write request data processed by a module per second |
Read Bandwidth (MB/s) |
Bandwidth of all read operations on a specified file system (including forwarding ends) |
Write Bandwidth (MB/s) |
Average write request data amount processed by a module per second |
Indicator |
Definition |
|---|---|
Total IOPS |
Average number of read and write requests processed by a module per second |
Read IOPS |
Average number of read requests processed by a module per second |
Write IOPS(IO/s) |
Number of write requests processed by a module per second |
Avg. I/O Response Time (us) |
Time of processing a request within a statistical period, including the waiting time. |
Avg. Read I/O Response Time (us) |
Average read I/O response time within a statistical period. By default, one statistical period is five seconds. |
Avg. Write I/O Response Time (us) |
Average write I/O response time within a statistical period. By default, one statistical period is five seconds. |
Block Bandwidth (MB/s) |
Average amount of read and write request data processed by a module per second |
Read Bandwidth (MB/s) |
Bandwidth of all read operations on a specified file system (including forwarding ends) |
Write Bandwidth (MB/s) |
Average write request data amount processed by a module per second |
Indicator |
Definition |
|---|---|
Usage (%) |
Request processing time and queuing time/Statistical period |
Queue Length |
Number of requests being processed and waiting to be processed at a specific point of time |
Total IOPS |
Average number of read and write requests processed by a module per second |
Avg. read I/O size(KB) |
Average read I/O size from the last sampling time point till now |
Read IOPS |
Average number of read requests processed by a module per second |
Avg. write I/O size(KB) |
Average write I/O size from the last sampling time point till now |
Write IOPS(IO/s) |
Number of write requests processed by a module per second |
Read I/O Granularity Distribution: [0K,4K)(%) |
Read I/O Granularity Distribution: [0K,4K) (%) |
Read I/O Granularity Distribution: [4 KB, 8 KB) (%) |
Read I/O granularity distribution: [4 K, 8 K) (%) |
Read I/O Granularity Distribution: [8 KB, 16 KB) (%) |
Read I/O granularity distribution: [8 K, 16 K) (%) |
Read I/O Granularity Distribution: [16 KB, 32 KB) (%) |
Read I/O granularity distribution: [16 K, 32 K) (%) |
Read I/O Granularity Distribution: [32 KB, 64 KB) (%) |
Read I/O granularity distribution: [32 K, 64 K) (%) |
Read I/O Granularity Distribution: [64 KB, 128 KB) (%) |
Read I/O granularity distribution: [64 K, 128 K) (%) |
Read I/O Granularity Distribution: [128K,+∞)(%) |
Read I/O Granularity Distribution: [128K,+∞) (%) |
Write I/O Granularity Distribution: [0K,4K)(%) |
Write I/O Granularity Distribution: [0K,4K) (%) |
Write I/O Granularity Distribution: [4 KB, 8 KB) (%) |
Write I/O granularity distribution: [4 K, 8 K) (%) |
Write I/O Granularity Distribution: [8 KB, 16 KB) (%) |
Write I/O granularity distribution: [8 K, 16 K) (%) |
Write I/O Granularity Distribution: [16 KB, 32 KB) (%) |
Write I/O granularity distribution: [16 K, 32 K) (%) |
Write I/O Granularity Distribution: [32 KB, 64 KB) (%) |
Write I/O granularity distribution: [32 K, 64 K) (%) |
Write I/O Granularity Distribution: [64 KB, 128 KB) (%) |
Write I/O granularity distribution: [64 K, 128 K) (%) |
Write I/O Granularity Distribution: [128K,+∞)(%) |
Write I/O Granularity Distribution: [128K,+∞) (%) |
Avg. I/O Response Time (us) |
Time of processing a request within a statistical period, including the waiting time. |
Avg. Read I/O Response Time (us) |
Average read I/O response time within a statistical period. By default, one statistical period is five seconds. |
Avg. Write I/O Response Time (us) |
Average write I/O response time within a statistical period. By default, one statistical period is five seconds. |
Ratio of read I/Os to total I/Os(%) |
Ratio of read I/Os to total I/Os |
Ratio of write I/Os to total I/Os(%) |
Ratio of write I/Os to total I/Os |
Transmitting Bandwidth for Replication (KB/s) |
Volume of data that is sent from the local device to a remote device every second |
Receiving Bandwidth for Replication (KB/s) |
Volume of data that is received from a remote device to the local device per second |
Read Bandwidth (MB/s) |
Bandwidth of all read operations on a specified file system (including forwarding ends) |
Block Bandwidth (MB/s) |
Average amount of read and write request data processed by a module per second |
Write Bandwidth (MB/s) |
Average write request data amount processed by a module per second |
Indicator |
Definition |
|---|---|
Usage (%) |
Request processing time and queuing time/Statistical period |
Queue Length |
Number of requests being processed and waiting to be processed at a specific point of time |
Total IOPS |
Average number of read and write requests processed by a module per second |
Avg. read I/O size(KB) |
Average read I/O size from the last sampling time point till now |
Read IOPS |
Average number of read requests processed by a module per second |
Avg. write I/O size(KB) |
Average write I/O size from the last sampling time point till now |
Write IOPS(IO/s) |
Number of write requests processed by a module per second |
Read I/O Granularity Distribution: [0K,4K)(%) |
Read I/O Granularity Distribution: [0K,4K) (%) |
Read I/O Granularity Distribution: [4 KB, 8 KB) (%) |
Read I/O granularity distribution: [4 K, 8 K) (%) |
Read I/O Granularity Distribution: [8 KB, 16 KB) (%) |
Read I/O granularity distribution: [8 K, 16 K) (%) |
Read I/O Granularity Distribution: [16 KB, 32 KB) (%) |
Read I/O granularity distribution: [16 K, 32 K) (%) |
Read I/O Granularity Distribution: [32 KB, 64 KB) (%) |
Read I/O granularity distribution: [32 K, 64 K) (%) |
Read I/O Granularity Distribution: [64 KB, 128 KB) (%) |
Read I/O granularity distribution: [64 K, 128 K) (%) |
Read I/O Granularity Distribution: [128K,+∞)(%) |
Read I/O Granularity Distribution: [128K,+∞) (%) |
Write I/O Granularity Distribution: [0K,4K)(%) |
Write I/O Granularity Distribution: [0K,4K) (%) |
Write I/O Granularity Distribution: [4 KB, 8 KB) (%) |
Write I/O granularity distribution: [4 K, 8 K) (%) |
Write I/O Granularity Distribution: [8 KB, 16 KB) (%) |
Write I/O granularity distribution: [8 K, 16 K) (%) |
Write I/O Granularity Distribution: [16 KB, 32 KB) (%) |
Write I/O granularity distribution: [16 K, 32 K) (%) |
Write I/O Granularity Distribution: [32 KB, 64 KB) (%) |
Write I/O granularity distribution: [32 K, 64 K) (%) |
Write I/O Granularity Distribution: [64 KB, 128 KB) (%) |
Write I/O granularity distribution: [64 K, 128 K) (%) |
Write I/O Granularity Distribution: [128K,+∞)(%) |
Write I/O Granularity Distribution: [128K,+∞) (%) |
Avg. I/O Response Time (us) |
Time of processing a request within a statistical period, including the waiting time. |
Avg. Read I/O Response Time (us) |
Average read I/O response time within a statistical period. By default, one statistical period is five seconds. |
Avg. Write I/O Response Time (us) |
Average write I/O response time within a statistical period. By default, one statistical period is five seconds. |
Ratio of read I/Os to total I/Os(%) |
Ratio of read I/Os to total I/Os |
Ratio of write I/Os to total I/Os(%) |
Ratio of write I/Os to total I/Os |
Block Bandwidth (MB/s) |
Average amount of read and write request data processed by a module per second |
Read Bandwidth (MB/s) |
Bandwidth of all read operations on a specified file system (including forwarding ends) |
Write Bandwidth (MB/s) |
Average write request data amount processed by a module per second |
Indicator |
Definition |
|---|---|
Usage (%) |
Request processing time and queuing time/Statistical period |
Total IOPS |
Average number of read and write requests processed by a module per second |
Avg. read I/O size(KB) |
Average read I/O size from the last sampling time point till now |
Read IOPS |
Average number of read requests processed by a module per second |
Avg. write I/O size(KB) |
Average write I/O size from the last sampling time point till now |
Write IOPS(IO/s) |
Number of write requests processed by a module per second |
Read I/O Granularity Distribution: [0K,4K)(%) |
Read I/O Granularity Distribution: [0K,4K) (%) |
Read I/O Granularity Distribution: [4 KB, 8 KB) (%) |
Read I/O granularity distribution: [4 K, 8 K) (%) |
Read I/O Granularity Distribution: [8 KB, 16 KB) (%) |
Read I/O granularity distribution: [8 K, 16 K) (%) |
Read I/O Granularity Distribution: [16 KB, 32 KB) (%) |
Read I/O granularity distribution: [16 K, 32 K) (%) |
Read I/O Granularity Distribution: [32 KB, 64 KB) (%) |
Read I/O granularity distribution: [32 K, 64 K) (%) |
Read I/O Granularity Distribution: [64 KB, 128 KB) (%) |
Read I/O granularity distribution: [64 K, 128 K) (%) |
Read I/O Granularity Distribution: [128K,+∞)(%) |
Read I/O Granularity Distribution: [128K,+∞) (%) |
Write I/O Granularity Distribution: [0K,4K)(%) |
Write I/O Granularity Distribution: [0K,4K) (%) |
Write I/O Granularity Distribution: [4 KB, 8 KB) (%) |
Write I/O granularity distribution: [4 K, 8 K) (%) |
Write I/O Granularity Distribution: [8 KB, 16 KB) (%) |
Write I/O granularity distribution: [8 K, 16 K) (%) |
Write I/O Granularity Distribution: [16 KB, 32 KB) (%) |
Write I/O granularity distribution: [16 K, 32 K) (%) |
Write I/O Granularity Distribution: [32 KB, 64 KB) (%) |
Write I/O granularity distribution: [32 K, 64 K) (%) |
Write I/O Granularity Distribution: [64 KB, 128 KB) (%) |
Write I/O granularity distribution: [64 K, 128 K) (%) |
Write I/O Granularity Distribution: [128K,+∞)(%) |
Write I/O Granularity Distribution: [128K,+∞) (%) |
Avg. I/O Response Time (us) |
Time of processing a request within a statistical period, including the waiting time. |
Avg. I/O Response Time (us) |
Time of processing a request within a statistical period, including the waiting time. |
Avg. Read I/O Response Time (us) |
Average read I/O response time within a statistical period. By default, one statistical period is five seconds. |
Avg. Write I/O Response Time (us) |
Average write I/O response time within a statistical period. By default, one statistical period is five seconds. |
Write Bandwidth (MB/s) |
Average write request data amount processed by a module per second |
Block Bandwidth (MB/s) |
Average amount of read and write request data processed by a module per second |
Read Bandwidth (MB/s) |
Bandwidth of all read operations on a specified file system (including forwarding ends) |
Indicator |
Definition |
|---|---|
Usage (%) |
Request processing time and queuing time/Statistical period |
Queue Length |
Number of requests being processed and waiting to be processed at a specific point of time |
Total IOPS |
Average number of read and write requests processed by a module per second |
Avg. read I/O size(KB) |
Average read I/O size from the last sampling time point till now |
Read IOPS |
Average number of read requests processed by a module per second |
Avg. write I/O size(KB) |
Average write I/O size from the last sampling time point till now |
Write IOPS(IO/s) |
Number of write requests processed by a module per second |
Read I/O Granularity Distribution: [0K,4K)(%) |
Read I/O Granularity Distribution: [0K,4K) (%) |
Read I/O Granularity Distribution: [4 KB, 8 KB) (%) |
Read I/O granularity distribution: [4 K, 8 K) (%) |
Read I/O Granularity Distribution: [8 KB, 16 KB) (%) |
Read I/O granularity distribution: [8 K, 16 K) (%) |
Read I/O Granularity Distribution: [16 KB, 32 KB) (%) |
Read I/O granularity distribution: [16 K, 32 K) (%) |
Read I/O Granularity Distribution: [32 KB, 64 KB) (%) |
Read I/O granularity distribution: [32 K, 64 K) (%) |
Read I/O Granularity Distribution: [64 KB, 128 KB) (%) |
Read I/O granularity distribution: [64 K, 128 K) (%) |
Read I/O Granularity Distribution: [128K,+∞)(%) |
Read I/O Granularity Distribution: [128K,+∞) (%) |
Write I/O Granularity Distribution: [0K,4K)(%) |
Write I/O Granularity Distribution: [0K,4K) (%) |
Write I/O Granularity Distribution: [4 KB, 8 KB) (%) |
Write I/O granularity distribution: [4 K, 8 K) (%) |
Write I/O Granularity Distribution: [8 KB, 16 KB) (%) |
Write I/O granularity distribution: [8 K, 16 K) (%) |
Write I/O Granularity Distribution: [16 KB, 32 KB) (%) |
Write I/O granularity distribution: [16 K, 32 K) (%) |
Write I/O Granularity Distribution: [32 KB, 64 KB) (%) |
Write I/O granularity distribution: [32 K, 64 K) (%) |
Write I/O Granularity Distribution: [64 KB, 128 KB) (%) |
Write I/O granularity distribution: [64 K, 128 K) (%) |
Write I/O Granularity Distribution: [128K,+∞)(%) |
Write I/O Granularity Distribution: [128K,+∞) (%) |
Avg. I/O Response Time (us) |
Time of processing a request within a statistical period, including the waiting time. |
Avg. Read I/O Response Time (us) |
Average read I/O response time within a statistical period. By default, one statistical period is five seconds. |
Avg. Write I/O Response Time (us) |
Average write I/O response time within a statistical period. By default, one statistical period is five seconds. |
Ratio of read I/Os to total I/Os(%) |
Ratio of read I/Os to total I/Os |
Ratio of write I/Os to total I/Os(%) |
Ratio of write I/Os to total I/Os |
Transmitting Bandwidth for Replication (KB/s) |
Volume of data that is sent from the local device to a remote device every second |
Receiving Bandwidth for Replication (KB/s) |
Volume of data that is received from a remote device to the local device per second |
Block Bandwidth (MB/s) |
Average amount of read and write request data processed by a module per second |
Read Bandwidth (MB/s) |
Bandwidth of all read operations on a specified file system (including forwarding ends) |
Write Bandwidth (MB/s) |
Average write request data amount processed by a module per second |
Indicator |
Definition |
|---|---|
Queue Length |
Number of requests being processed and waiting to be processed at a specific point of time |
Total IOPS |
Average number of read and write requests processed by a module per second |
Avg. read I/O size(KB) |
Average read I/O size from the last sampling time point till now |
Read IOPS |
Average number of read requests processed by a module per second |
Avg. write I/O size(KB) |
Average write I/O size from the last sampling time point till now |
Write IOPS(IO/s) |
Number of write requests processed by a module per second |
Read I/O Granularity Distribution: [0K,4K)(%) |
Read I/O Granularity Distribution: [0K,4K) (%) |
Read I/O Granularity Distribution: [4 KB, 8 KB) (%) |
Read I/O granularity distribution: [4 K, 8 K) (%) |
Read I/O Granularity Distribution: [8 KB, 16 KB) (%) |
Read I/O granularity distribution: [8 K, 16 K) (%) |
Read I/O Granularity Distribution: [16 KB, 32 KB) (%) |
Read I/O granularity distribution: [16 K, 32 K) (%) |
Read I/O Granularity Distribution: [32 KB, 64 KB) (%) |
Read I/O granularity distribution: [32 K, 64 K) (%) |
Read I/O Granularity Distribution: [64 KB, 128 KB) (%) |
Read I/O granularity distribution: [64 K, 128 K) (%) |
Read I/O Granularity Distribution: [128K,+∞)(%) |
Read I/O Granularity Distribution: [128K,+∞) (%) |
Write I/O Granularity Distribution: [0K,4K)(%) |
Write I/O Granularity Distribution: [0K,4K) (%) |
Write I/O Granularity Distribution: [4 KB, 8 KB) (%) |
Write I/O granularity distribution: [4 K, 8 K) (%) |
Write I/O Granularity Distribution: [8 KB, 16 KB) (%) |
Write I/O granularity distribution: [8 K, 16 K) (%) |
Write I/O Granularity Distribution: [16 KB, 32 KB) (%) |
Write I/O granularity distribution: [16 K, 32 K) (%) |
Write I/O Granularity Distribution: [32 KB, 64 KB) (%) |
Write I/O granularity distribution: [32 K, 64 K) (%) |
Write I/O Granularity Distribution: [64 KB, 128 KB) (%) |
Write I/O granularity distribution: [64 K, 128 K) (%) |
Write I/O Granularity Distribution: [128K,+∞)(%) |
Write I/O Granularity Distribution: [128K,+∞) (%) |
Avg. I/O Response Time (us) |
Time of processing a request within a statistical period, including the waiting time. |
Avg. Read I/O Response Time (us) |
Average read I/O response time within a statistical period. By default, one statistical period is five seconds. |
Avg. Write I/O Response Time (us) |
Average write I/O response time within a statistical period. By default, one statistical period is five seconds. |
Block Bandwidth (MB/s) |
Average amount of read and write request data processed by a module per second |
Read Bandwidth (MB/s) |
Bandwidth of all read operations on a specified file system (including forwarding ends) |
Write Bandwidth (MB/s) |
Average write request data amount processed by a module per second |
Indicator |
Definition |
|---|---|
Queue Length |
Number of requests being processed and waiting to be processed at a specific point of time |
Total IOPS |
Average number of read and write requests processed by a module per second |
Avg. read I/O size(KB) |
Average read I/O size from the last sampling time point till now |
Read IOPS |
Average number of read requests processed by a module per second |
Avg. write I/O size(KB) |
Average write I/O size from the last sampling time point till now |
Write IOPS(IO/s) |
Number of write requests processed by a module per second |
Read I/O Granularity Distribution: [0K,4K)(%) |
Read I/O Granularity Distribution: [0K,4K) (%) |
Read I/O Granularity Distribution: [4 KB, 8 KB) (%) |
Read I/O granularity distribution: [4 K, 8 K) (%) |
Read I/O Granularity Distribution: [8 KB, 16 KB) (%) |
Read I/O granularity distribution: [8 K, 16 K) (%) |
Read I/O Granularity Distribution: [16 KB, 32 KB) (%) |
Read I/O granularity distribution: [16 K, 32 K) (%) |
Read I/O Granularity Distribution: [32 KB, 64 KB) (%) |
Read I/O granularity distribution: [32 K, 64 K) (%) |
Read I/O Granularity Distribution: [64 KB, 128 KB) (%) |
Read I/O granularity distribution: [64 K, 128 K) (%) |
Read I/O Granularity Distribution: [128K,+∞)(%) |
Read I/O Granularity Distribution: [128K,+∞) (%) |
Write I/O Granularity Distribution: [0K,4K)(%) |
Write I/O Granularity Distribution: [0K,4K) (%) |
Write I/O Granularity Distribution: [4 KB, 8 KB) (%) |
Write I/O granularity distribution: [4 K, 8 K) (%) |
Write I/O Granularity Distribution: [8 KB, 16 KB) (%) |
Write I/O granularity distribution: [8 K, 16 K) (%) |
Write I/O Granularity Distribution: [16 KB, 32 KB) (%) |
Write I/O granularity distribution: [16 K, 32 K) (%) |
Write I/O Granularity Distribution: [32 KB, 64 KB) (%) |
Write I/O granularity distribution: [32 K, 64 K) (%) |
Write I/O Granularity Distribution: [64 KB, 128 KB) (%) |
Write I/O granularity distribution: [64 K, 128 K) (%) |
Write I/O Granularity Distribution: [128K,+∞)(%) |
Write I/O Granularity Distribution: [128K,+∞) (%) |
Avg. CPU Usage (%) |
CPU usage in a statistical period. By default, one statistical period is five seconds. |
Avg. Cache Usage (%) |
Cache usage in a statistical period. By default, one statistical period is five seconds. |
Avg. I/O Response Time (us) |
Time of processing a request within a statistical period, including the waiting time. |
Max. I/O Response Time (us) |
Maximum average I/O response time in all statistical periods after the performance statistics collection starts. The average I/O response time refers to the time required to process one read/write request in a statistical period. The response time includes the waiting time. By default, one statistical period is five seconds. |
Cache Flushes in Write Requests (%) |
Ratio of cache flushing requests to front-end host write requests. Divide cache flushing I/Os by front-end write I/Os to obtain the ratio. |
Cache Flushing Bandwidth (MB/s) |
Volume of data generated by cache flushing per second. Use the following formula to calculate this statistical value: Volume of data generated by successfully processed cache flushes in a statistical period/Statistical period. |
Read Cache Hit Ratio (%) |
Percentage of the number of fully hit read I/Os to the total number of front-end read I/Os. The statistics are collected by LUN. |
Write Cache Hit Ratio (%) |
Ratio of front-end write I/O hits to total write I/Os. The statistics are collected by LUN. |
Cache read usage(%) |
Ratio of used read pages to total read pages |
Cache write usage(%) |
Ratio of used write pages to total write pages |
Avg. Read I/O Response Time (us) |
Average read I/O response time within a statistical period. By default, one statistical period is five seconds. |
Avg. Write I/O Response Time (us) |
Average write I/O response time within a statistical period. By default, one statistical period is five seconds. |
Hit Ratio (%) |
Percentage of the number of read and write I/O hits to the total number of front-end read I/Os. The statistics are collected by LUN. |
Cache Watermark (%) |
Percentage of dirty pages in total pages. After the high watermark is reached, dirty data on cache is flushed to disks. |
Cache Page Usage (%) |
Percentage of used pages to the quota in the cache |
Cache Chunk Usage (%) |
Percentage of used chunks to the quota in the cache |
Block Bandwidth (MB/s) |
Average amount of read and write request data processed by a module per second |
Read Bandwidth (MB/s) |
Bandwidth of all read operations on a specified file system (including forwarding ends) |
Write Bandwidth (MB/s) |
Average write request data amount processed by a module per second |
Indicator |
Definition |
|---|---|
Queue Length |
Number of requests being processed and waiting to be processed at a specific point of time |
Total IOPS |
Average number of read and write requests processed by a module per second |
Avg. read I/O size(KB) |
Average read I/O size from the last sampling time point till now |
Read IOPS |
Average number of read requests processed by a module per second |
Avg. write I/O size(KB) |
Average write I/O size from the last sampling time point till now |
Write IOPS(IO/s) |
Number of write requests processed by a module per second |
Read I/O Granularity Distribution: [0K,4K)(%) |
Read I/O Granularity Distribution: [0K,4K) (%) |
Read I/O Granularity Distribution: [4 KB, 8 KB) (%) |
Read I/O granularity distribution: [4 K, 8 K) (%) |
Read I/O Granularity Distribution: [8 KB, 16 KB) (%) |
Read I/O granularity distribution: [8 K, 16 K) (%) |
Read I/O Granularity Distribution: [16 KB, 32 KB) (%) |
Read I/O granularity distribution: [16 K, 32 K) (%) |
Read I/O Granularity Distribution: [32 KB, 64 KB) (%) |
Read I/O granularity distribution: [32 K, 64 K) (%) |
Read I/O Granularity Distribution: [64 KB, 128 KB) (%) |
Read I/O granularity distribution: [64 K, 128 K) (%) |
Read I/O Granularity Distribution: [128K,+∞)(%) |
Read I/O Granularity Distribution: [128K,+∞) (%) |
Write I/O Granularity Distribution: [0K,4K)(%) |
Write I/O Granularity Distribution: [0K,4K) (%) |
Write I/O Granularity Distribution: [4 KB, 8 KB) (%) |
Write I/O granularity distribution: [4 K, 8 K) (%) |
Write I/O Granularity Distribution: [8 KB, 16 KB) (%) |
Write I/O granularity distribution: [8 K, 16 K) (%) |
Write I/O Granularity Distribution: [16 KB, 32 KB) (%) |
Write I/O granularity distribution: [16 K, 32 K) (%) |
Write I/O Granularity Distribution: [32 KB, 64 KB) (%) |
Write I/O granularity distribution: [32 K, 64 K) (%) |
Write I/O Granularity Distribution: [64 KB, 128 KB) (%) |
Write I/O granularity distribution: [64 K, 128 K) (%) |
Write I/O Granularity Distribution: [128K,+∞)(%) |
Write I/O Granularity Distribution: [128K,+∞) (%) |
Avg. I/O Response Time (us) |
Time of processing a request within a statistical period, including the waiting time. |
Read Cache Hit Ratio (%) |
Percentage of the number of fully hit read I/Os to the total number of front-end read I/Os. The statistics are collected by LUN. |
Write Cache Hit Ratio (%) |
Ratio of front-end write I/O hits to total write I/Os. The statistics are collected by LUN. |
Avg. Read I/O Response Time (us) |
Average read I/O response time within a statistical period. By default, one statistical period is five seconds. |
Avg. Write I/O Response Time (us) |
Average write I/O response time within a statistical period. By default, one statistical period is five seconds. |
Avg. I/O size(KB) |
Average I/O size |
Ratio of read I/Os to total I/Os(%) |
Ratio of read I/Os to total I/Os |
Ratio of write I/Os to total I/Os(%) |
Ratio of write I/Os to total I/Os |
Block Bandwidth (MB/s) |
Average amount of read and write request data processed by a module per second |
Read Bandwidth (MB/s) |
Bandwidth of all read operations on a specified file system (including forwarding ends) |
Write Bandwidth (MB/s) |
Average write request data amount processed by a module per second |
Indicator |
Definition |
|---|---|
Queue Length |
Number of requests being processed and waiting to be processed at a specific point of time |
Total IOPS |
Average number of read and write requests processed by a module per second |
Avg. read I/O size(KB) |
Average read I/O size from the last sampling time point till now |
Read IOPS |
Average number of read requests processed by a module per second |
Avg. write I/O size(KB) |
Average write I/O size from the last sampling time point till now |
Write IOPS(IO/s) |
Number of write requests processed by a module per second |
Read I/O Granularity Distribution: [0K,4K)(%) |
Read I/O Granularity Distribution: [0K,4K) (%) |
Read I/O Granularity Distribution: [4 KB, 8 KB) (%) |
Read I/O granularity distribution: [4 K, 8 K) (%) |
Read I/O Granularity Distribution: [8 KB, 16 KB) (%) |
Read I/O granularity distribution: [8 K, 16 K) (%) |
Read I/O Granularity Distribution: [16 KB, 32 KB) (%) |
Read I/O granularity distribution: [16 K, 32 K) (%) |
Read I/O Granularity Distribution: [32 KB, 64 KB) (%) |
Read I/O granularity distribution: [32 K, 64 K) (%) |
Read I/O Granularity Distribution: [64 KB, 128 KB) (%) |
Read I/O granularity distribution: [64 K, 128 K) (%) |
Read I/O Granularity Distribution: [128K,+∞)(%) |
Read I/O Granularity Distribution: [128K,+∞) (%) |
Write I/O Granularity Distribution: [0K,4K)(%) |
Write I/O Granularity Distribution: [0K,4K) (%) |
Write I/O Granularity Distribution: [4 KB, 8 KB) (%) |
Write I/O granularity distribution: [4 K, 8 K) (%) |
Write I/O Granularity Distribution: [8 KB, 16 KB) (%) |
Write I/O granularity distribution: [8 K, 16 K) (%) |
Write I/O Granularity Distribution: [16 KB, 32 KB) (%) |
Write I/O granularity distribution: [16 K, 32 K) (%) |
Write I/O Granularity Distribution: [32 KB, 64 KB) (%) |
Write I/O granularity distribution: [32 K, 64 K) (%) |
Write I/O Granularity Distribution: [64 KB, 128 KB) (%) |
Write I/O granularity distribution: [64 K, 128 K) (%) |
Write I/O Granularity Distribution: [128K,+∞)(%) |
Write I/O Granularity Distribution: [128K,+∞) (%) |
Avg. I/O Response Time (us) |
Time of processing a request within a statistical period, including the waiting time. |
Avg. Read I/O Response Time (us) |
Average read I/O response time within a statistical period. By default, one statistical period is five seconds. |
Avg. Write I/O Response Time (us) |
Average write I/O response time within a statistical period. By default, one statistical period is five seconds. |
Avg. I/O size(KB) |
Average I/O size |
Back-end read/write requests per second |
Number of finished back-end read and write requests from disks to the cache |
Back-end read requests per second |
Number of finished back-end read requests from disks to the cache |
Back-end write requests per second |
Number of finished back-end write requests from disks to the cache |
Back-End traffic(MB/s) |
Read and write traffic per second from back-end to the cache |
Back-end read traffic(MB/s) |
Read traffic per second from back-end to the cache |
Back-end write traffic(MB/s) |
Write traffic per second from back-end to the cache |
Ratio of read I/Os to total I/Os(%) |
Ratio of read I/Os to total I/Os |
Ratio of write I/Os to total I/Os(%) |
Ratio of write I/Os to total I/Os |
Back-End Read Response Time (us) |
Average back-end read response time (all back-end requests) |
Back-End Write Response Time (us) |
Average back-end write response time (all back-end requests) |
Avg. Back-End Response Time (us) |
Average back-end response time (all back-end requests) |
Ratio of back-end read requests(%) |
Back-end read request percentage |
Ratio of back-end write requests(%) |
Back-end write request percentage |
Thin LUN Space Saving Rate(%) |
Thin LUN Space Saving Rate Calculation formula: Thin LUN space saving ratio = (Remaining thin LUN capacity/Total thin LUN capacity of the storage pool) Remaining thin LUN capacity = Total thin LUN capacity of the storage pool – Used thin LUN capacity |
Block Bandwidth (MB/s) |
Average amount of read and write request data processed by a module per second |
Read Bandwidth (MB/s) |
Bandwidth of all read operations on a specified file system (including forwarding ends) |
Write Bandwidth (MB/s) |
Average write request data amount processed by a module per second |
Indicator |
Definition |
|---|---|
Queue Length |
Number of requests being processed and waiting to be processed at a specific point of time |
Block Bandwidth (MB/s) |
Average amount of read and write request data processed by a module per second |
Total IOPS |
Average number of read and write requests processed by a module per second |
Read Bandwidth (MB/s) |
Bandwidth of all read operations on a specified file system (including forwarding ends) |
Avg. read I/O size(KB) |
Average read I/O size from the last sampling time point till now |
Read IOPS |
Average number of read requests processed by a module per second |
Write Bandwidth (MB/s) |
Average write request data amount processed by a module per second |
Avg. write I/O size(KB) |
Average write I/O size from the last sampling time point till now |
Write IOPS(IO/s) |
Number of write requests processed by a module per second |
Read I/O Granularity Distribution: [0K,4K)(%) |
Read I/O Granularity Distribution: [0K,4K) (%) |
Read I/O Granularity Distribution: [4 KB, 8 KB) (%) |
Read I/O granularity distribution: [4 K, 8 K) (%) |
Read I/O Granularity Distribution: [8 KB, 16 KB) (%) |
Read I/O granularity distribution: [8 K, 16 K) (%) |
Read I/O Granularity Distribution: [16 KB, 32 KB) (%) |
Read I/O granularity distribution: [16 K, 32 K) (%) |
Read I/O Granularity Distribution: [32 KB, 64 KB) (%) |
Read I/O granularity distribution: [32 K, 64 K) (%) |
Read I/O Granularity Distribution: [64 KB, 128 KB) (%) |
Read I/O granularity distribution: [64 K, 128 K) (%) |
Read I/O Granularity Distribution: [128K,+∞)(%) |
Read I/O Granularity Distribution: [128K,+∞) (%) |
Write I/O Granularity Distribution: [0K,4K)(%) |
Write I/O Granularity Distribution: [0K,4K) (%) |
Write I/O Granularity Distribution: [4 KB, 8 KB) (%) |
Write I/O granularity distribution: [4 K, 8 K) (%) |
Write I/O Granularity Distribution: [8 KB, 16 KB) (%) |
Write I/O granularity distribution: [8 K, 16 K) (%) |
Write I/O Granularity Distribution: [16 KB, 32 KB) (%) |
Write I/O granularity distribution: [16 K, 32 K) (%) |
Write I/O Granularity Distribution: [32 KB, 64 KB) (%) |
Write I/O granularity distribution: [32 K, 64 K) (%) |
Write I/O Granularity Distribution: [64 KB, 128 KB) (%) |
Write I/O granularity distribution: [64 K, 128 K) (%) |
Write I/O Granularity Distribution: [128K,+∞)(%) |
Write I/O Granularity Distribution: [128K,+∞) (%) |
Avg. I/O Response Time (us) |
Time of processing a request within a statistical period, including the waiting time. |
Avg. Read I/O Response Time (us) |
Average read I/O response time within a statistical period. By default, one statistical period is five seconds. |
Avg. Write I/O Response Time (us) |
Average write I/O response time within a statistical period. By default, one statistical period is five seconds. |
Avg. I/O size(KB) |
Average I/O size |
Ratio of read I/Os to total I/Os(%) |
Ratio of read I/Os to total I/Os |
Ratio of write I/Os to total I/Os(%) |
Ratio of write I/Os to total I/Os |
Normalized IOPS |
Number of normalized I/O requests per second on a module |
Normalized Latency (us) |
Average normalized latency for processing all I/O requests in a statistical period |
Indicator |
Definition |
|---|---|
Total IOPS |
Average number of read and write requests processed by a module per second |
Avg. I/O Response Time (us) |
Time of processing a request within a statistical period, including the waiting time. |
Avg. Read I/O Response Time (us) |
Average read I/O response time within a statistical period. By default, one statistical period is five seconds. |
Avg. Write I/O Response Time (us) |
Average write I/O response time within a statistical period. By default, one statistical period is five seconds. |
Block Bandwidth (MB/s) |
Average amount of read and write request data processed by a module per second |
Indicator |
Definition |
|---|---|
Total IOPS |
Average number of read and write requests processed by a module per second |
Avg. CPU Usage (%) |
CPU usage in a statistical period. By default, one statistical period is five seconds. |
Avg. I/O Response Time (us) |
Time of processing a request within a statistical period, including the waiting time. |
Avg. Read I/O Response Time (us) |
Average read I/O response time within a statistical period. By default, one statistical period is five seconds. |
Avg. Write I/O Response Time (us) |
Average write I/O response time within a statistical period. By default, one statistical period is five seconds. |
Block Bandwidth (MB/s) |
Average amount of read and write request data processed by a module per second |
Indicator |
Definition |
|---|---|
Total IOPS |
Average number of read and write requests processed by a module per second |
Avg. I/O Response Time (us) |
Time of processing a request within a statistical period, including the waiting time. |
Avg. Read I/O Response Time (us) |
Average read I/O response time within a statistical period. By default, one statistical period is five seconds. |
Avg. Write I/O Response Time (us) |
Average write I/O response time within a statistical period. By default, one statistical period is five seconds. |
Block Bandwidth (MB/s) |
Average amount of read and write request data processed by a module per second |
Indicator |
Definition |
|---|---|
Block Bandwidth (KB/s) |
Volume of data being read and written per second on a module |
Queue Length |
Number of requests being processed and waiting to be processed at a specific point of time |
Total IOPS |
Average number of read and write requests processed by a module per second |
Read Bandwidth (KB/s) |
Volume of data generated by read requests processed by a module per second |
Avg. read I/O size(KB) |
Average read I/O size from the last sampling time point till now |
Read IOPS |
Average number of read requests processed by a module per second |
Write Bandwidth (KB/s) |
Volume of data generated by write requests processed by a module per second |
Avg. write I/O size(KB) |
Average write I/O size from the last sampling time point till now |
Write IOPS(IO/s) |
Number of write requests processed by a module per second |
Avg. I/O Response Time (us) |
Time of processing a request within a statistical period, including the waiting time. |
Avg. Read I/O Response Time (us) |
Average read I/O response time within a statistical period. By default, one statistical period is five seconds. |
Avg. Write I/O Response Time (us) |
Average write I/O response time within a statistical period. By default, one statistical period is five seconds. |
Indicator |
Definition |
|---|---|
Block Bandwidth (KB/s) |
Volume of data being read and written per second on a module |
Queue Length |
Number of requests being processed and waiting to be processed at a specific point of time |
Total IOPS |
Average number of read and write requests processed by a module per second |
Read Bandwidth (KB/s) |
Volume of data generated by read requests processed by a module per second |
Avg. read I/O size(KB) |
Average read I/O size from the last sampling time point till now |
Read IOPS |
Average number of read requests processed by a module per second |
Write Bandwidth (KB/s) |
Volume of data generated by write requests processed by a module per second |
Avg. write I/O size(KB) |
Average write I/O size from the last sampling time point till now |
Write IOPS(IO/s) |
Number of write requests processed by a module per second |
Avg. I/O Response Time (us) |
Time of processing a request within a statistical period, including the waiting time. |
Avg. Read I/O Response Time (us) |
Average read I/O response time within a statistical period. By default, one statistical period is five seconds. |
Avg. Write I/O Response Time (us) |
Average write I/O response time within a statistical period. By default, one statistical period is five seconds. |
Indicator |
Definition |
|---|---|
Synchronization Duration (s) |
Synchronization duration in the statistical period |
Indicator |
Definition |
|---|---|
Queue Length |
Number of requests being processed and waiting to be processed at a specific point of time |
Total IOPS |
Average number of read and write requests processed by a module per second |
Read Bandwidth (KB/s) |
Volume of data generated by read requests processed by a module per second |
Avg. read I/O size(KB) |
Average read I/O size from the last sampling time point till now |
Read IOPS |
Average number of read requests processed by a module per second |
Write Bandwidth (KB/s) |
Volume of data generated by write requests processed by a module per second |
Avg. write I/O size(KB) |
Average write I/O size from the last sampling time point till now |
Write IOPS(IO/s) |
Number of write requests processed by a module per second |
Avg. I/O Response Time (us) |
Time of processing a request within a statistical period, including the waiting time. |
Avg. Read I/O Response Time (us) |
Average read I/O response time within a statistical period. By default, one statistical period is five seconds. |
Avg. Write I/O Response Time (us) |
Average write I/O response time within a statistical period. By default, one statistical period is five seconds. |
Total Bandwidth (KB/s) |
Volume of data being read and written per second on a module |
Transmitting Bandwidth for Replication (KB/s) |
Volume of data that is sent from the local device to a remote device every second |
Receiving Bandwidth for Replication (KB/s) |
Volume of data that is received from a remote device to the local device per second |
Indicator |
Definition |
|---|---|
Queue Length |
Number of requests being processed and waiting to be processed at a specific point of time |
Total IOPS |
Average number of read and write requests processed by a module per second |
Read Bandwidth (KB/s) |
Volume of data generated by read requests processed by a module per second |
Avg. read I/O size(KB) |
Average read I/O size from the last sampling time point till now |
Read IOPS |
Average number of read requests processed by a module per second |
Write Bandwidth (KB/s) |
Volume of data generated by write requests processed by a module per second |
Avg. write I/O size(KB) |
Average write I/O size from the last sampling time point till now |
Write IOPS(IO/s) |
Number of write requests processed by a module per second |
Avg. I/O Response Time (us) |
Time of processing a request within a statistical period, including the waiting time. |
Avg. Read I/O Response Time (us) |
Average read I/O response time within a statistical period. By default, one statistical period is five seconds. |
Avg. Write I/O Response Time (us) |
Average write I/O response time within a statistical period. By default, one statistical period is five seconds. |
Total Bandwidth (KB/s) |
Volume of data being read and written per second on a module |
Transmitting Bandwidth for Replication (KB/s) |
Volume of data that is sent from the local device to a remote device every second |
Receiving Bandwidth for Replication (KB/s) |
Volume of data that is received from a remote device to the local device per second |
Indicator |
Definition |
|---|---|
Block Bandwidth (KB/s) |
Volume of data being read and written per second on a module |
Time Since Last Synchronization (s) |
Time interval between the current system time and the start time of last remote replication |
Logical Bandwidth (KB/s) |
Volume of data being read and written per second on a module before compression |
Synchronization Duration (s) |
Synchronization duration in the statistical period |
Time Difference (s) |
Time difference between the data synchronization points in time of the primary and secondary resources in a synchronization period |
Indicator |
Definition |
|---|---|
Queue Length |
Number of requests being processed and waiting to be processed at a specific point of time |
Total IOPS |
Average number of read and write requests processed by a module per second |
Read Bandwidth (KB/s) |
Volume of data generated by read requests processed by a module per second |
Avg. read I/O size(KB) |
Average read I/O size from the last sampling time point till now |
Read IOPS |
Average number of read requests processed by a module per second |
Write Bandwidth (KB/s) |
Volume of data generated by write requests processed by a module per second |
Avg. write I/O size(KB) |
Average write I/O size from the last sampling time point till now |
Write IOPS(IO/s) |
Number of write requests processed by a module per second |
Avg. I/O Response Time (us) |
Time of processing a request within a statistical period, including the waiting time. |
Avg. Read I/O Response Time (us) |
Average read I/O response time within a statistical period. By default, one statistical period is five seconds. |
Avg. Write I/O Response Time (us) |
Average write I/O response time within a statistical period. By default, one statistical period is five seconds. |
Total Bandwidth (KB/s) |
Volume of data being read and written per second on a module |
Transmitting Bandwidth for Replication (KB/s) |
Volume of data that is sent from the local device to a remote device every second |
Receiving Bandwidth for Replication (KB/s) |
Volume of data that is received from a remote device to the local device per second |
Indicator |
Definition |
|---|---|
Block Bandwidth (KB/s) |
Volume of data being read and written per second on a module |
