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Who When What Removed Added
Alasdair Kergon 2011-09-06 13:23:47 UTC Version 6.1 6.2
Haim 2011-09-06 13:32:00 UTC CC hateya, ykaul
Haim 2011-09-06 13:32:10 UTC See Also https://bugzilla.redhat.com/show_bug.cgi?id=736034
Yaniv Kaul 2011-09-06 13:36:46 UTC Summary [lvm] [scale] pvs command takes more then 3 minutes when VG combined from 300 pvs [lvm] [scale] pvs command takes more than 3 minutes when VG combined from 300 pvs
Jonathan Earl Brassow 2011-09-06 14:46:39 UTC Assignee lvm-team zkabelac
Zdenek Kabelac 2011-09-07 12:14:02 UTC Status NEW ASSIGNED
Flags needinfo?(hateya)
Haim 2011-09-25 07:46:06 UTC Flags needinfo?(hateya)
Zdenek Kabelac 2011-09-25 17:35:42 UTC Flags needinfo?(hateya)
Haim 2011-09-27 13:59:01 UTC Flags needinfo?(hateya)
Zdenek Kabelac 2011-09-27 18:13:03 UTC Flags needinfo?(prajnoha)
Peter Rajnoha 2012-01-04 14:21:35 UTC CC kzak
Flags needinfo?(prajnoha) needinfo?(kzak)
Karel Zak 2012-01-10 17:09:11 UTC Flags needinfo?(kzak)
Zdenek Kabelac 2012-04-25 08:15:42 UTC Flags needinfo?(agk)
Milan Broz 2012-05-29 12:57:37 UTC CC mbroz
Lee Yarwood 2013-02-11 12:24:54 UTC CC lyarwood
Simon Green 2013-07-04 03:24:21 UTC CC ykaul jkt
Alasdair Kergon 2013-10-10 12:21:48 UTC Priority unspecified medium
Flags needinfo?(agk)
John Skeoch 2014-01-13 00:58:22 UTC CC yeylon
John Skeoch 2014-01-13 00:59:14 UTC CC hateya
John Skeoch 2014-03-17 01:55:57 UTC CC abaron iheim
Chris Williams 2014-10-09 18:28:48 UTC Blocks 1075802
Tom Lavigne 2014-11-18 02:07:12 UTC Blocks 1159926
Jonathan Earl Brassow 2014-12-01 15:38:28 UTC Doc Text zkabelac: please update with proper documentation
1) use lvmetad
2) don't write metadata to as many PVs
John Skeoch 2015-01-07 23:23:09 UTC CC jkt bsettle
Zdenek Kabelac 2015-03-09 08:39:12 UTC Status ASSIGNED POST
Peter Rajnoha 2015-03-24 13:31:04 UTC Status POST MODIFIED
Fixed In Version lvm2-2.02.118-1.el6
errata-xmlrpc 2015-03-24 13:34:12 UTC Status MODIFIED ON_QA
Corey Marthaler 2015-05-06 23:21:09 UTC Status ON_QA VERIFIED
Zdenek Kabelac 2015-05-27 12:25:39 UTC Doc Text zkabelac: please update with proper documentation
1) use lvmetad
2) don't write metadata to as many PVs
When a VG is built from many PVs (say >50), we advice users to think about performance/security consequences.

Overall speed of lvm2 validation has been significantly improved, but still if the read access to a PV is slow, the read bottleneck cannot be eliminated.

Thus on the system without lvmetad, it's very useful to limit number of metadata areas in a VG [--metadatacopies] (so they are not read/verified/written 50 times with each use).
On the other hand if PVs with metadata are lost or taken out of a VG, the remaining PVs without metadata areas become useless, so users needs to optimize risk here.

System with enabled lvmetad should significantly reduce the operation time of individual commands even if VG has metadata on all PVs.
Zdenek Kabelac 2015-05-27 12:28:37 UTC See Also https://bugzilla.redhat.com/show_bug.cgi?id=1217401
errata-xmlrpc 2015-07-20 13:26:24 UTC Status VERIFIED RELEASE_PENDING
errata-xmlrpc 2015-07-22 07:36:46 UTC Status RELEASE_PENDING CLOSED
Resolution --- ERRATA
Last Closed 2015-07-22 03:36:46 UTC

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