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14216
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?
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trnc
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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.
trnc
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172 Posts
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September 8th, 2016 06:00
Excellent. Thanks, Don.
trnc
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172 Posts
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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.
trnc
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172 Posts
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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.
trnc
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172 Posts
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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.
davei0595
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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.
davei0595
13 Posts
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October 5th, 2016 02:00
OK I must be mistaken. Thanks.
trnc
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172 Posts
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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.