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Status Under review
Workspace IBM Spectrum Virtualize / FlashSystem
Created by Guest
Created on Dec 18, 2024

RELATED IDEAS

Addition of reclaimable space on lsvdiskanalysis and/or GUI volume properties

With the avenue of reclaim_se utility to automatically reclaim capacity of thin vdisks part of standard pools, clients are starting to ask support at times regarding the reclaimable capacity on their volumes. The command lsvdiskanalysis, from client view does not display this reclaimable value - only available via logs to support.

The value can be calculated via lssevdiskcopy used_capacity minus lsvdiskanalysis thin_size. Created cli script related :

lssevdiskcopy -bytes -nohdr | while read id rest; do lsvdisk -bytes $id | grep -m 1 "used_capacity " | while read text1 usedcap; do lsvdisk -bytes $id | grep -m 1 "real_capacity " | while read text2 realcap; do lsvdiskanalysis -bytes $id | grep thin_size | while read text3 thinsize; do echo "Reclaimable capacity on volume id" $id " : " $(((usedcap - thinsize)/1024/1024)) "MB  Space required on pool to reclaim: " $(((realcap - (usedcap - thinsize))/1024/1024))" MB"; done; done; done; done


Could we suggest this reclaimable space on each vdisk be added to client view of CLI lsvdiskanalysis? Or even better to each volume GUI properties?


Idea priority Medium
  • Admin
    Philip Clark
    Reply
    |     Feb 7, 2025

    There is not a column that shows how much space will be reclaimed by the reclaim_se utility, but in 8.7.1 and newer, there is a new column available in the GUI which shows written capacity, based on lsvdiskanalysis

    So you can visually compare the used capacity and written capacity columns in the GUI


    See attached screenshot:

    image.png
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    Open full size
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