Checking the Running Status of Services
You need to check the running status of various services on the storage device by using DeviceManager. This allows you to discover service faults in a timely manner, preventing data loss caused by service interruptions.
Checking Disk Domains
By checking the status of a disk domain, you can understand its health status and running status. The running status of a disk domain directly affects that of a storage pool.
Impact on the System
A faulty or degraded disk domain may impair read/write performance, interrupt services, and cause data loss on the storage device.
Reference Standard
If disk domains are working properly, the following items are true on DeviceManager:
- All of the disk domains are in the Normal health status and Online running status.
- No disk domain alarm appears on the Current Alarms tab page.
Precaution
None
Procedure
- On the navigation bar of DeviceManager, click
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Provisioning. - In the function pane, click Disk Domain.
The Disk Domain page is displayed.
- On the Disk Domain page, view the information about the desired disk domain.
Table 4-23 describes associated status parameters.
Table 4-23 Disk domain status parameters and their meaningsParameter
Description
Health Status
Health status of a disk domain. The value can be:
- Normal: The functionality and operating performance of the disk domain are normal.
- Degrade: The disk domain is working in a poor performance.
- Faulty: The disk domain is working improperly.
Running Status
Running status of a disk domain. The value can be Online, Reconstruction, Precopy, Initializing, Deleting or Offline.
Provisioning.Exception Handling
If a disk domain alarm appears on the Current Alarms tab page, select the alarm and diagnose the problem according to its details and repair suggestions.
Checking Storage Pools
A storage pool is a logical disk group consisting of independent physical disks. It provides higher storage performance and redundancy than a single disk. You can learn about the health and running status of a storage pool by checking its status information on DeviceManager.
Impact on the System
A faulty or degraded storage pool may impair read/write performance, interrupt services, and cause data loss on the storage device.
Reference Standard
If storage pools are working properly, the following items are true on DeviceManager:
- All of the storage pools are in the Normal health status and Online running status.
- No storage pool alarm appears on the Current Alarms tab page.
Precaution
None
Procedure
- On the navigation bar of DeviceManager, click
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Provisioning. - In the function pane, click Storage Pool.
The Storage Pool page is displayed.
- On the Storage Pool page, view the information about the desired storage pool.
Table 4-24 describes associated status parameters.
Table 4-24 Storage pool status parameters and their meaningsParameter
Description
Health Status
Health status of a storage pool. The value can be:
- Normal: The functionality and operating performance of the storage pool are normal.
- Degrade: The storage pool is working in a poor performance.
- Faulty: The storage pool is working improperly.
Running Status
Running status of a storage pool. The value can be Online, Reconstruction, Precopy, Initializing, Deleting or Offline.
Provisioning.Exception Handling
If a storage pool alarm appears on the Current Alarms tab page, select the alarm and diagnose the problem according to its details and repair suggestions.
Checking LUNs
Logical unit numbers (LUNs) are basic storage resources of the storage device accessible to application servers. You can learn about the health and running status of a LUN by checking its status information on DeviceManager.
Impact on the System
Faulty LUNs may interrupt services and cause data loss on the storage device.
Reference Standard
If LUNs are working properly, the following items are true on DeviceManager:
- All of the LUNs are in the Normal health status and Online running status.
- No LUN alarm appears on the Current Alarms tab page.
Precaution
None
Procedure
- On the navigation bar of DeviceManager, click
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Provisioning. - In the function pane, click LUN.
The LUN page is displayed.
- On the LUN page, view the information about the desired LUN.
Table 4-25 describes associated status parameters.
Table 4-25 LUN status parameters and their meaningsParameter
Description
Health Status
Health status of a LUN. The value can be:
- Normal: The functionality and operating performance of the LUN are normal.
- Fault: The LUN is working improperly.
Running Status
Running status of a LUN. The value can be Online or Offline.
Provisioning.Exception Handling
If a LUN alarm appears on the Current Alarms tab page, select the alarm and diagnose the problem according to its details and repair suggestions.
Checking Host Status
You can view host information to understand host status.
Impact on the System
A host fault may interrupt system services and cause data loss.
Reference Standard
If the host status is normal, on the DeviceManager management page:
- The Status of the host is Normal.
- No alarm about the host is displayed on the Current Alarms tab page.
Precaution
None
Procedure
- On the navigation bar of DeviceManager, click
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Provisioning. - In the function pane on the left, click Host.
The Host page is displayed.
- On the Host tab of the Host page, view detailed information about the host.
Provisioning.Exception Handling
If a host alarm appears on the Current Alarms tab page, select the alarm, and troubleshoot the fault according to the alarm details and repair suggestions.
Viewing Mapping Status
You can learn the component mapping relationship on the mapping view.
Impact on the System
A faulty mapping may interrupt system services and cause data loss.
Precaution
None
Procedure
- On the navigation bar of DeviceManager, click
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Provisioning. - In the function pane on the left, click Mapping View.
The Mapping View page is displayed.
- On the Mapping View page, select a mapping you want to view.
- Click Properties and view LUN group, host group, and port group information in the mapping.
Provisioning.Exception Handling
If a host alarm appears on the Current Alarms tab page, select the alarm, and troubleshoot the fault according to the alarm details and repair suggestions.
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