[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]

Re: [linux-lvm] LVM blocks discard for remove commands



On Wed, 19 Oct 2011, Mike Snitzer wrote:

Does it apply for the blocks holding meta data,
e.g. will pvremove issue discard requests for the PV meta data ?

The discards are only issued for the physical extents that were used in
a volume's data area.  PV metadata isn't discarded, and really there
would be little benefit to doing so.

The metadata is written over so that the PV is no longer recognized. I think that issuing a discard for the metadata would actually be
incorrect.

--
	      Stuart D. Gathman <stuart bmsi com>
    Business Management Systems Inc.  Phone: 703 591-0911 Fax: 703 591-6154
"Confutatis maledictis, flammis acribus addictis" - background song for
a Microsoft sponsored "Where do you want to go from here?" commercial.


[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]