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From: | Paolo Bonzini |
Subject: | Re: [Qemu-block] [PATCH COLO v3 01/14] docs: block replication's description |
Date: | Wed, 29 Apr 2015 10:29:44 +0200 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0 |
On 27/04/2015 11:37, Stefan Hajnoczi wrote: >>> But it's only for the failover case. Quorum (or a new >>> block/colo.c driver or filter) is fine for normal colo >>> operation. > Perhaps this patch series should mirror the Secondary's disk to a > Backup Secondary so that the system can be protected very quickly > after failover. > > I think anyone serious about fault tolerance would deploy a Backup > Secondary, otherwise the system cannot survive two failures > unless a human administrator is lucky/fast enough to set up a new > Secondary. Let's do one thing at a time. Otherwise nothing of this is going to be ever completed... Paolo
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