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Asset ID: 1-71-1591433.1
Update Date:2018-05-10
Keywords:
Solution Type  Technical Instruction Sure

Solution  1591433.1 :   Sun Storage 7000 Unified Storage System: Offlining a disk before replacement is NOT supported  

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In this Document


Goal


Solution


References


Applies to:  

Sun Storage 7410 Unified Storage System - Version All Versions and later
Sun ZFS Storage 7120 - Version All Versions and later
Sun ZFS Storage 7320 - Version All Versions and later
Sun ZFS Storage 7420 - Version All Versions and later
Sun Storage 7110 Unified Storage System - Version All Versions and later
7000 Appliance OS (Fishworks)



Goal


 ZFS Storage Appliance: Offlining a (failed) disk before replacement is NOT SUPPORTED


 


Solution


The ZFSSA BUI/CLI offers the ability to offline a drive.

This option is only available for disks that are part of a configured storage pool (including the system pool). 

Offlining a disk prevents the system from reading or writing to it.


Faulted devices are already avoided, so this option should only be required if a disk is exhibiting performance problems that do not result in pathological failure.


It is not possible to offline a disk that would prevent access to data (i.e. offlining both halves of a mirror). 

From BUI




Maintenance--Hardware--Select DiskShelves/Show details              and offline the disk using "Offline disk" option




 


From CLI


CLI> maintenance hardware select <chassisID> select disk select <Disk number> set offline=true


 


Offlining the disk manually from BUI/CLI prior replacement before replacement is NOT SUPPORTED.


If you take a drive offline, replace the drive, and try to bring it online, it remains in the faulted state.


If the original faulted disk is sent back after replacement please engage Storage-TSC for assistance.





In case the disk was offlined by TSC/FE prior replacement for any reasons and replaced with a new  one and new disk is not detected, 

The workaround a Field Engineer can do is :


    

  1. Insert back the original faulted disk which was offlined manually
    2. 

  2. Online the same  from BUI/CLI
    3. 

  3. Replace again with the new one
    4. 




If the original faulted disk is sent back after replacement please contact TSC for  assistance

Even though BUI offers the ability to offline a drive it does not trigger activation of a spare in case a disk which is not faulted and actively participating in the pool is offlined.  

RFE: 15566832: Request ability to offline a drive and activate a spare


 


 


Check for relevancy - 10-May-2018


 


References
 <BUG:15566832> - SUNBT6847353 REQUEST ABILITY TO OFFLINE A DRIVE AND ACTIVATE A SPARE



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