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2 Intern

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172 Posts

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September 7th, 2016 14:00

UNMAP for Windows volumes?

I know about the scsi unmap command for vmfs to reclaim space on an EQ LUN. Is there an equivalent for Windows data volumes connected via iscsi?

2 Intern

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172 Posts

September 7th, 2016 16:00

OK, that sounds like a win for us. We're at 8.1.4, and we aren't doing any replication - just offsite backup of data and vm snapshots. Most of my terminal servers are still 2008 R2, but I have HIT/ME installed for iscsi multipathing. I'm still doing data volume snapshots with the Group Mgr, but I'm planning to switch to ASM when I get a chance. This is one more reason to put that task on the front burner.

Thanks.

2 Intern

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172 Posts

September 8th, 2016 06:00

Excellent. Thanks, Don.

2 Intern

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172 Posts

September 8th, 2016 11:00

OK. I've already run it against a couple of volumes and it worked like a champ. I'm going to set up a simple script to prompt for the drive letter I want to run it on.

Sure love me some EQ tools.

2 Intern

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172 Posts

September 8th, 2016 13:00

OK. I probably don't have compressed files anywhere else. This was a very small set on one of our oldest terminal servers, and I'm pretty sure I just set it for testing there when I deployed the server. If I find anything else interesting, I'll post.

2 Intern

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172 Posts

September 8th, 2016 13:00

OK, all great info, thanks. I just got an error on a Windows volume with compressed files, but there were only a few small ones so I decompressed and ran it again. Success.

13 Posts

October 3rd, 2016 05:00

It is a shame that the rethin\unmap cannot be used with NTFS volumes configured for Replication.

All our NTFS-formatted volumes are configured for replication because, well, they contain business-critical data (hence storing them on 'expensive' EQL rather than dumb storage).  We keep them thin-provisioned so the users don't see big red warnings about disk space.

Presumably this isn't a simple oversight, and there are good underlying technical reasons why rethinning a thin-provisioned NTFS volume configured for replication is not possible?  (when we can run scsi unmap from esxi against vmfs formatted volumes configured for replication).

cheers.

13 Posts

October 5th, 2016 02:00

OK I must be mistaken.  Thanks.

2 Intern

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172 Posts

October 5th, 2016 07:00

Don, just an update that I haven't come across any more compressed files while rethinning, so I don't have any more info to add about that.

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