From: malahal@us.ibm.com
To: dm-devel@redhat.com
Subject: Re: [PATCH 7/7] Hold all write bios when errors are handled
Date: Thu, 26 Nov 2009 14:22:28 -0800 [thread overview]
Message-ID: <20091126222228.GA27430@us.ibm.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0911261256270.28831@hs20-bc2-1.build.redhat.com>
Mikulas Patocka [mpatocka@redhat.com] wrote:
> > > If you ask the admin always if primary leg failed and wait for his
> > > action, you lose fault-tolerance --- the computer would wait until
> > > the admin does an action.
> >
> > Well, we are talking one time admin help at reboot [actually activation
> > time] if and only if the "state of the mirror" changed during reboot!
> > This is not applicable at run time. Most of the time, dmeventd will have
> > a chance to change the mirror to linear anyway.
>
> You can ask the admin about failed on reboot --- but why do it if it can
> continue on its own? (unless both legs fail)
Agreed, it is better to stop on either failure.
next prev parent reply other threads:[~2009-11-26 22:22 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-18 12:09 [PATCH 0/7] patches: fix dm-raid1 race, bug 502927 Mikulas Patocka
2009-11-18 12:10 ` [PATCH 1/7] Explicitly initialize bio lists Mikulas Patocka
2009-11-18 12:11 ` [PATCH 2/7] A framework for holding bios until suspend Mikulas Patocka
2009-11-18 12:11 ` [PATCH 3/7] Use the hold framework in do_failures Mikulas Patocka
2009-11-18 12:12 ` [PATCH 4/7] Don't optimize for failure case Mikulas Patocka
2009-11-18 12:13 ` [PATCH 5/7] Move a logic to get a valid mirror leg to a function Mikulas Patocka
2009-11-18 12:18 ` [PATCH 6/7] Move bio completion from dm_rh_mark_nosync to its caller Mikulas Patocka
2009-11-18 12:19 ` [PATCH 7/7] Hold all write bios when errors are handled Mikulas Patocka
2009-11-23 5:58 ` malahal
2009-11-23 17:54 ` Takahiro Yasui
2009-11-24 11:51 ` Mikulas Patocka
2009-11-24 19:17 ` malahal
2009-11-25 13:19 ` Mikulas Patocka
2009-11-25 15:43 ` Takahiro Yasui
2009-11-25 20:44 ` malahal
2009-11-25 22:50 ` Takahiro Yasui
2009-11-26 17:56 ` Mikulas Patocka
2009-11-26 17:54 ` [PATCH 8/7] Hold all write bios in nosync region Mikulas Patocka
2009-11-25 20:23 ` [PATCH 7/7] Hold all write bios when errors are handled malahal
2009-11-25 22:47 ` Takahiro Yasui
2009-11-25 23:20 ` malahal
2009-11-25 23:50 ` Takahiro Yasui
2009-11-26 0:30 ` malahal
2009-11-26 17:58 ` Mikulas Patocka
2009-11-26 22:22 ` malahal [this message]
2009-11-28 18:02 ` [PATCH 2/7] A framework for holding bios until suspend Takahiro Yasui
2009-11-30 2:55 ` malahal
2009-11-30 9:41 ` Alasdair G Kergon
2009-11-30 16:46 ` [PATCH 0/7] patches: fix dm-raid1 race, bug 502927 Takahiro Yasui
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