From: Peter Rajnoha <prajnoha@redhat.com>
To: vaLentin chernoZemski <valentin@siteground.com>
Cc: LVM general discussion and development <linux-lvm@redhat.com>
Subject: Re: [linux-lvm] lvremove does not pass discards if volume is part of thin pool
Date: Wed, 12 Aug 2015 09:57:23 +0200 [thread overview]
Message-ID: <55CAFC63.6070409@redhat.com> (raw)
In-Reply-To: <55CAF9DD.3090707@redhat.com>
On 08/12/2015 09:46 AM, Peter Rajnoha wrote:
> On 08/11/2015 04:35 PM, Mike Snitzer wrote:
>> I'll have to defer to the lvm2 developers, I thought we added explicit
>> logging when lvm2 issues discards (as part of lvremove, etc) -- Peter,
>> and/or Alasdair?
>>
>
> Yes, we log that like (visible in the verbose -vvv output):
>
> "Discarding X extents offset Y sectors on /dev/Z."
>
> Also, when removing a volume, we issue this message:
>
> # lvremove vg1/lvol0
> Do you really want to remove and DISCARD logical volume lvol0? [y/n]:
>
> For this, the "devices/issue_discards=1" must be set - it's not
> by default.
>
Well, sorry, this applies for usual PVs, not thin pools (I overlooked
the $subject and just saw the last question...)
--
Peter
next prev parent reply other threads:[~2015-08-12 7:57 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-10 8:56 [linux-lvm] lvremove does not pass discards if volume is part of thin pool vaLentin chernoZemski
2015-08-10 17:49 ` Mike Snitzer
2015-08-11 8:07 ` vaLentin chernoZemski
2015-08-11 14:35 ` Mike Snitzer
2015-08-11 14:56 ` vaLentin chernoZemski
2015-08-12 7:46 ` Peter Rajnoha
2015-08-12 7:57 ` Peter Rajnoha [this message]
2015-08-19 10:40 ` vaLentin chernoZemski
2016-01-22 17:18 ` Tomas Janousek
2016-01-26 17:03 ` Tomas Janousek
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