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Topic
  • 1 reply
  • Latest Post - ‏2019-07-31T17:59:28Z by TMasteen
Folium
Folium
1 Post

Pinned topic Will delete of thin volume reclaim the space?

‏2019-07-31T07:19:40Z | v7000

Hi,

We have a Storwize v7000 with a traditional pool without any unmap.

I understand that space will not be reclaimed automatically when data is deleted from vmware.

Consider this example:

Case

1. We create a thin Datastore_1. Then fill it with 7 TB of VM's.

2. We migrate the VM's to another volume. Data is deleted from Datastore_1, 
vmware shows zero bytes in use, but 7 TB will still be occupied on the SAN.

3. We then remove the volume from the SAN

Question: Will we get the 7 TB back in step 3?

 

We want to avoid manual intensive zeroing efforts by using sdelete etc.

Thanks.

  • TMasteen
    TMasteen
    384 Posts
    ACCEPTED ANSWER

    Re: Will delete of thin volume reclaim the space?

    ‏2019-07-31T17:59:28Z  

    Follum,

    In step 3 you delete the volume on the V7k (after unmapping).

    So yes, after deletion the mdiskgroup\pool will have 7TB more capacity to spend. 

  • TMasteen
    TMasteen
    384 Posts

    Re: Will delete of thin volume reclaim the space?

    ‏2019-07-31T17:59:28Z  

    Follum,

    In step 3 you delete the volume on the V7k (after unmapping).

    So yes, after deletion the mdiskgroup\pool will have 7TB more capacity to spend.