From: Gionatan Danti <g.danti@assyoma.it>
To: Zdenek Kabelac <zdenek.kabelac@gmail.com>
Cc: lists.linux.dev@frank.fyi, linux-lvm@lists.linux.dev
Subject: Re: add volatile flag to PV/LVs (for cache) to avoid degraded state on reboot
Date: Thu, 18 Jan 2024 20:50:06 +0100 [thread overview]
Message-ID: <a20030d9127e3d799111c5aab4e1ed88@assyoma.it> (raw)
In-Reply-To: <3d1e18f3-a79f-4e0d-8b6c-7f10e5c8debf@gmail.com>
Il 2024-01-18 16:40 Zdenek Kabelac ha scritto:
> But it further needs some lvm2 metadata update to maintain the 'state'
> of metadata - so if there is again some 'reboot' and PV with cache
> appears back - it will not interfere with the system (aka providing
> some historical cached blocks, so just like mirrored leg needs some
> care...)
Hi Zdenek,
yes, this is a valid point: if the cache device reappears and starts
providing old blocks, then data corruption can happen.
Thanks.
--
Danti Gionatan
Supporto Tecnico
Assyoma S.r.l. - www.assyoma.it
email: g.danti@assyoma.it - info@assyoma.it
next prev parent reply other threads:[~2024-01-18 19:50 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-12 18:19 add volatile flag to PV/LVs (for cache) to avoid degraded state on reboot lists.linux.dev
2024-01-17 11:08 ` Zdenek Kabelac
2024-01-17 22:00 ` Gionatan Danti
2024-01-18 15:40 ` Zdenek Kabelac
2024-01-18 19:50 ` Gionatan Danti [this message]
2024-01-20 20:29 ` lists.linux.dev
[not found] ` <1279983342.522347.1705803666448@mail.yahoo.com>
2024-01-22 10:58 ` Zdenek Kabelac
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