Setup Disk Drive Patrol

Overview

This function periodically monitors the operating condition of each drive that is installed in the storage system. By performing disk drive patrol, abnormal status can be detected at an early stage and potential drive failures can be averted.

This function is effective for diagnosing the state of drives and hot spares that are not often used. Set this function to detect any drive failures at an early stage.

Caution

  • When drive "Error" is detected by this function, the error is dealt in the same way as usual drive failure.

Note

  • This function is performed without any relation to Host I/O.

  • The current setting for the disk drive patrol can be checked from the [System Settings] screen. Refer to the [System Settings] function for details.

  • The progress of the disk drive patrol can be checked from the [Drive Detail] screen. Refer to the [Drives] function for details.

User Privileges

Availability of Executions in the Default Role

Default role Availability of executions
Monitor  
Admin
StorageAdmin  
AccountAdmin  
SecurityAdmin  
Maintainer

Refer to "User Roles and Policies" for details on the policies and roles.

Settings

Disk Drive Patrol Settings

Item Description Setting values

Disk Drive Patrol

Select whether to "Enable" or "Disable" the disk drive patrol function.

Enable (Default)

Disable

Target Disk Drive

Select the checkbox for the target drives (multiple selections can be made).

This item is available when logged in using a user account with the "Maintenance Operation" policy.

  • Data Disk Drive

  • Hot Spare Disk Drive

  • Unused Disk Drive

Selected: Patrol is enabled

Not selected

All selected (Default)

Media Check for Free Area of RAID Groups

Select whether ("Check") or not ("Do not Check") to check the unused area (the area in which no volumes are created) in the data drive.

This item is available when logged in using a user account with the "Maintenance Operation" policy.

Check (Default)

Do not Check

Check Code Check

Select whether ("Check") or not ("Do not Check") to check if the data is normally being read from the specified area of the drives.

It is possible to check disk medium error by checking the check code.

This item is available when logged in using a user account with the "Maintenance Operation" policy.

Check

Do not Check (Default)

Disk Drive Port Check

Select whether ("Check") or not ("Do not Check") to check the non-active ports.

This item is available when logged in using a user account with the "Maintenance Operation" policy.

Check (Default)

Do not Check

Interval between each test increment

Specify the interval between patrols (0.1 to 1.0) in units of seconds.

This item is available when logged in using a user account with the "Maintenance Operation" policy.

0.1 - 1.0 (in the unit of 0.1 seconds)

1.0 sec. (Default)

Operation Size

Select the data size between 0.5 MB and 16.0 MB to be checked in one patrol.

This item is available when logged in using a user account with the "Maintenance Operation" policy.

0.5 MB

1.0 MB

2.0 MB (Default)

4.0 MB

8.0 MB

16.0 MB

Operating Procedures

When the User has the "Storage Management" Policy

  1. Click [Setup Disk Patrol] in [Action].

  2. Specify whether to enable or disable the disk patrol function, and click the [Set] button.

    → A confirmation screen appears.

  3. Click the [OK] button.

    → The disk drive patrol starts.

  4. Click the [Done] button to return to the [System Settings] screen.

When the User has the "Maintenance Operation" Policy

  1. Click [Setup Disk Patrol] in [Action].

  2. Specify the parameters, and click the [Set] button.

    → A confirmation screen appears.

  3. Click the [OK] button.

    → Setting of the disk drive patrol starts.

  4. Click the [Done] button to return to the [System Settings] screen.