No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

FusionStorage V100R006C20 Block Storage Service Software Installation Guide 07

Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Configuring VBS Flow Control Parameters

Configuring VBS Flow Control Parameters

Scenarios

If the I/O throughput on a computing node is too high, the read/write performance from this node to FusionStorage Block will deteriorate significantly. Therefore, Virtual Block System (VBS) flow control parameters need to be configured based on the storage bandwidth or number of CPUs on this computing node, ensuring that the read/write performance from this node to FusionStorage Block is normal.

Prerequisites

Conditions

You have obtained the management IP address of the active FusionStorage Manager (FSM) node and the password of user dsware.

Procedure

    1. Use PuTTY to log in to the active FSM node.

      Ensure that the management IP address of the active FSM node and username dsware are used to establish the connection.

      If the public and private keys are used to authenticate the login, perform the operations based on Using PuTTY to Log In to a Node in Key Pair Authentication Mode.

    2. Run the following command to switch to the /opt/dsware/client/bin directory:

      cd /opt/dsware/client/bin

    3. Modify VBS flow control parameters.

      NOTE:

      Since the system has been hardened, you need to enter the username and password for login authentication after running the dswareTool command of FusionStorage Block. The default username is cmdadmin, and its default password is IaaS@PORTAL-CLOUD9!.

      The system supports authentication using environment variables so that you do not need to repeatedly enter the username and password for authentication each time you run the dswareTool command. For details, see Authentication Using Environment Variables.

      • If the computing nodes are deployed on physical servers, run the following command:

        sh dswareTool.sh --op modifyIoDynamicParas -para g_iops_limit_per_vbs:0,g_iobw_limit_per_vbs:value2,g_io_limit_alarm_ratio:0,g_io_limit_restore_ratio:0,g_io_limit_alarm_time_threshold:0,g_io_limit_alarm_report_period:0 -ip ip1-ip2,ip3...

        Enter username cmdadmin and its password as prompted. The default password is IaaS@PORTAL-CLOUD9!.

        In the command, value2 specifies the maximum bandwidth to be configured for VBS flow control, in MB/s. The value is the computing nodes' storage network bandwidth divided by 10. ip1-ip2,ip3... specifies the computing node IP addresses to be configured, which can be IP addresses or IP address segments. This parameter is optional. If it is not specified, the configuration takes effect on all VBS nodes in the system. For example, the computing nodes' storage network uses 25GE network and all computing nodes share the same storage bandwidth. To set the maximum bandwidth of VBS flow control to 2500, run the following command: sh dswareTool.sh --op modifyIoDynamicParas -para g_iops_limit_per_vbs:0,g_iobw_limit_per_vbs:2500,g_io_limit_alarm_ratio:0,g_io_limit_restore_ratio:0,g_io_limit_alarm_time_threshold:0,g_io_limit_alarm_report_period:0

      • If the computing nodes are deployed on VMs, run the following command:

        sh dswareTool.sh --op modifyIoDynamicParas -para g_iops_limit_per_vbs:value1,g_iobw_limit_per_vbs:0,g_io_limit_alarm_ratio:0,g_io_limit_restore_ratio:0,g_io_limit_alarm_time_threshold:0,g_io_limit_alarm_report_period:0 -ip ip1-ip2,ip3...

        Enter username cmdadmin and its password as prompted. The default password is IaaS@PORTAL-CLOUD9!.

        In the command, value1 specifies the maximum concurrent IOPS to be configured for VBS flow control. The value is the number of CPUs on each computing node multiplied by 3000. ip1-ip2,ip3... specifies the computing node IP addresses to be configured, which can be IP addresses or IP address segments. This parameter is optional. If it is not specified, the configuration takes effect on all VBS nodes in the system. For example, the number of CPUs on one computing node is 2 and the number of CPUs on all computing nodes are the same. To set the maximum concurrent IOPS of VBS flow control to 6000, run the following command: sh dswareTool.sh --op modifyIoDynamicParas -para g_iops_limit_per_vbs:6000,g_iobw_limit_per_vbs:0,g_io_limit_alarm_ratio:0,g_io_limit_restore_ratio:0,g_io_limit_alarm_time_threshold:0,g_io_limit_alarm_report_period:0

      The configuration is successful if the number of faulty nodes displayed in the command output is 0.

Translation
Download
Updated: 2019-06-29

Document ID: EDOC1100016637

Views: 23762

Downloads: 14

Average rating:
This Document Applies to these Products
Related Documents
Related Version
Share
Previous Next