From: Zdenek Kabelac <zkabelac@redhat.com>
To: LVM general discussion and development <linux-lvm@redhat.com>,
Ilia Zykov <mail@izyk.ru>
Subject: Re: [linux-lvm] Why doesn't the lvmcache support the discard (trim) command?
Date: Mon, 22 Oct 2018 12:54:41 +0200 [thread overview]
Message-ID: <5429c96c-900a-6f38-2342-1bf7a61d79cb@redhat.com> (raw)
In-Reply-To: <0e965099-0e41-119c-8026-4db73ab2b077@izyk.ru>
Dne 19. 10. 18 v 19:00 Ilia Zykov napsal(a):
>>
>> dm-writecache could be seen as 'extension' of your page-cache to held
>> longer list of dirty-pages...
>>
>> Zdenek
>>
>
> Does it mean that the dm-writecache is always empty, after reboot?
> Thanks.
>
No, writecache is journaled - so after reboot used content is remembered and
read for use.
Zdenek
next prev parent reply other threads:[~2018-10-22 10:54 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-18 22:56 [linux-lvm] Why doesn't the lvmcache support the discard (trim) command? Ilia Zykov
2018-10-19 9:12 ` Zdenek Kabelac
2018-10-19 9:42 ` Gionatan Danti
2018-10-19 9:49 ` Zdenek Kabelac
2018-10-19 9:55 ` Ilia Zykov
2018-10-19 10:58 ` Zdenek Kabelac
2018-10-19 12:45 ` Gionatan Danti
2018-10-19 13:08 ` Zdenek Kabelac
2018-10-19 13:16 ` Ilia Zykov
2018-10-19 17:00 ` Ilia Zykov
2018-10-22 10:54 ` Zdenek Kabelac [this message]
2018-10-19 20:54 ` Gionatan Danti
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