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Asset ID: 1-71-2094495.1
Update Date:2016-02-09
Keywords:
Solution Type  Technical Instruction Sure

Solution  2094495.1 :   Sun Storage 2500, 2500-M2, and 6000 Arrays: How to Enable & Disable Disk Scrubbing (Media Scan)  

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Related Categories 
    

  • PLA-Support>Sun Systems>DISK>Arrays>SN-DK: 6140_6180
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In this Document


Goal


Solution


 Using Common Array Manager BUI (Browser User Interface)


 Using sscs (Common Array Manager CLI)



Created from <SR 3-11923985551>


Applies to:  

Sun Storage 6780 Array - Version Not Applicable to Not Applicable [Release N/A]
Sun Storage 6580 Array - Version All Versions to All Versions [Release All Releases]
Sun Storage 6180 Array - Version All Versions to All Versions [Release All Releases]
Sun Storage 2540-M2 Array - Version Not Applicable to Not Applicable [Release N/A]
Sun Storage 2530-M2 Array - Version Not Applicable to Not Applicable [Release N/A]
Information in this document applies to any platform.



Goal


Disk scrubbing (aka Media Scan) is a background process performed by the array controllers to provide error detection on the drive media.


Disk scrubbing detects errors and reports them to the event log. The advantage of disk scrubbing is that the process can find media errors before they disrupt normal drive reads and writes.


Disk scrubbing scans all volume data to verify that it can be accessed. If you enable a redundancy check, it also scans the volume redundancy data.


    

  • Before disk scrubbing can run, you must enable it on the array. Disk scrubbing then runs on all volumes on the array.
    • 

  • You can disable disk scrubbing on any volume that you do not want to have scrubbed. Later, you can re-enable disk scrubbing for any volume on which you disabled it.
    • 

  • For volumes, by default, the disk scrubbing check for media consistency is enabled. However, disk scrubbing for the array must be enabled to activate this feature.
    • 



 


Solution


Using Common Array Manager BUI (Browser User Interface)


Verify the status:


    

  1. From the navigation pane, expand the array for which you want to enable disk scrubbing.
    2. 

  2. Choose Administration.
    3. 

  3. If the Scrubbing is enabled, the check box to the right of Disk Scrubbing Enabled will be checked, and the number of days you want as a scan duration (or period) will be set.

    4. 



Enabling Disk Scrubbing on an Array Globally:


    

  1. From the navigation pane, expand the array for which you want to enable disk scrubbing.
    2. 

  2. Choose Administration.
    3. 

  3. Click the check box to the right of Disk Scrubbing Enabled, and specify the number of days you want as a scan duration (or period).
    4. 

  4. Click OK.
    5. 




Disabling and Re-enabling Disk Scrubbing on a Volume:



    

  1. From the navigation pane, expand the array for which you want to disable or re-enable disk scrubbing for a specific volume.
    2. 

  2. Choose Volumes.
    3. 

  3. Click the volume on which you want to disable or re-enable disk scrubbing.
    4. 

  4. In the Volume Details page, select one of the following: 

    

      

    • "Disk Scrubbing Enabled" field=False: Disable disk scrubbing.
      • 

    • "Disk Scrubbing Enabled" field=True: Re-enable disk scrubbing.
      • 

    • "Disk Scrubbing With Redundancy" field=True: Re-enable disk scrubbing so that it also scans the volume redundancy data.

      • 

    

    5. 

  5. Click OK.
    6. 



Using sscs (Common Array Manager CLI)




The sscs CAM  command-line interface is found in the following locations:


Solaris: /opt/SUNWstkcam/bin/
Linux: /opt/sun/cam/bin/
Windows: C:\Program Files\Sun\Common Array Manager\bin





Verify the status:





# sscs list array <array-name>




 
Example:




# sscs list array ST6540
Array: ST6540


........


Disk Scrubbing Enabled: Disabled <------------
Disk Scrubbing Duration: - <------------------


........




 

Enable disk scrubbing globally:



# sscs modify -k <scan period> array <array-name>


 
Example:




# sscs modify -k 30 array ST6540


#sscs list array ST6540
Array: ST6540
Array Type: 6540
.......
Disk Scrubbing Enabled: Enabled
Disk Scrubbing Duration: 30 days
......





Disable disk scrubbing globally:



# sscs modify -k disable array <array-name>



Example:




# sscs modify -k disable array ST6540





Verify the status per volume:





# sscs list -a <array-name> volume <vol-name>





Example:




# sscs list -a ST6540 volume vol1


Volume: vol1


Type: Standard...


Disk Scrubbing: Disabled


Disk Scrubbing with Redundancy: Disabled


...




 
Enable per volume :





# sscs modify -a <array-name> -k enable volume <vol-name>





Example:


# sscs modify -a ST6540 -k enable volume vol1



Enable Scrubbing with redundancy:





# sscs modify -a <array-name> -k enable volume <vol-name>


# sscs modify -a <array-name> -r enable volume <vol-name>





Example:




# sscs modify -a ST6540 -k enable volume vol1


# sscs modify -a ST6540 -r enable volume vol1


#lsscs list -a ST6540 volume vol1
Volume: vol1


.....
Disk Scrubbing: Enabled
Disk Scrubbing with Redundancy: Enabled
...





Disable per volume:





# sscs modify -a <array-name> -k disable volume <vol-name>


# sscs modify -a <array-name> -r disable volume <vol-name>





Example:




# sscs modify -a ST6540 -k disable volume vol1


# sscs modify -a ST6540 -r disable volume vol1




 


 



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