[gpfsug-discuss] Deletion of a pcache snapshot?

[McLaughlin, Sandra M]

John,

I had a period when I had to delete and remake AFM filesets rather frequently – this always worked for me:

mmunlinkfileset device fset -f
mmdelsnapshot device snapname  -j fset
mmdelfileset device fset -f

Sandra

From: gpfsug-discuss-bounces at spectrumscale.org [mailto:gpfsug-discuss-bounces at spectrumscale.org] On Behalf Of John Hearns
Sent: 08 September 2017 08:26
To: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Subject: Re: [gpfsug-discuss] Deletion of a pcache snapshot?

Venkat, thankyou.  I have a support ticket open on this issue, and will keep this option handy!


From: gpfsug-discuss-bounces at spectrumscale.org<mailto:gpfsug-discuss-bounces at spectrumscale.org> [mailto:gpfsug-discuss-bounces at spectrumscale.org] On Behalf Of Venkateswara R Puvvada
Sent: Friday, September 08, 2017 7:01 AM
To: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org<mailto:gpfsug-discuss at spectrumscale.org>>
Subject: Re: [gpfsug-discuss] Deletion of a pcache snapshot?

Snapshots created by AFM (recovery, resync or peer snapshots) cannot be deleted by user using mmdelsnapshot command directly.  After recovery or resync completion they get deleted automatically. For peer snapshots deletion  mmpsnasp command is used.  Which version of GPFS? Try with -p (undocumented) option.

mmdelsnapshot device snapname -j fset -p

~Venkat (vpuvvada at in.ibm.com<mailto:vpuvvada at in.ibm.com>)



From:        "Malka, Janusz" <janusz.malka at desy.de<mailto:janusz.malka at desy.de>>
To:        gpfsug main discussion list <gpfsug-discuss at spectrumscale.org<mailto:gpfsug-discuss at spectrumscale.org>>
Date:        09/08/2017 12:53 AM
Subject:        Re: [gpfsug-discuss] Deletion of a pcache snapshot?
Sent by:        gpfsug-discuss-bounces at spectrumscale.org<mailto:gpfsug-discuss-bounces at spectrumscale.org>
________________________________



I had similar issue, I had to recover connection to home
________________________________

From: "John Hearns" <john.hearns at asml.com<mailto:john.hearns at asml.com>>
To: "gpfsug main discussion list" <gpfsug-discuss at spectrumscale.org<mailto:gpfsug-discuss at spectrumscale.org>>
Sent: Thursday, 7 September, 2017 17:52:19
Subject: [gpfsug-discuss] Deletion of a pcache snapshot?

Firmly lining myself up for a smack round the chops with a wet haddock…
I try to delete an AFM cache fileset which I create da few days ago (it has an NFS home)
Mmdelfileset responds that :
Fileset  obfuscated has 1 fileset snapshot(s).

When I try to delete the snapshot:
Snapshot obfuscated.afm.1234 is an internal pcache recovery snapshot and cannot be deleted by user.

I find this reference, which is about as useful as a wet haddock:
https://www.ibm.com/support/knowledgecenter/en/STXKQY_4.2.3/com.ibm.spectrum.scale.v4r23.doc/6027-3321.htm<https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ibm.com%2Fsupport%2Fknowledgecenter%2Fen%2FSTXKQY_4.2.3%2Fcom.ibm.spectrum.scale.v4r23.doc%2F6027-3321.htm&data=01%7C01%7Cjohn.hearns%40asml.com%7Ce1770da61d37493e6ed308d4f6769543%7Caf73baa8f5944eb2a39d93e96cad61fc%7C1&sdata=60Hsf6r7HLExOcJ5diprosXgT%2BTc6Q36rNPqcrnJKyI%3D&reserved=0>

The advice of the gallery is sought, please.




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