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Re: [Xen-devel] [PATCH] remus: support DRBD disk backends
| To: | Shriram Rajagopalan <rshriram@xxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH] remus: support DRBD disk backends |
| From: | Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx> |
| Date: | Fri, 20 May 2011 18:21:58 +0100 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Fri, 20 May 2011 10:22:36 -0700 |
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Shriram Rajagopalan writes ("[Xen-devel] [PATCH] remus: support DRBD disk
backends"):
> remus: support DRBD disk backends
>
> DRBD disk backends can be used instead of tapdisk backends for Remus.
> This requires a Remus style disk replication protocol (asynchronous
> replication with output buffering at backup), that is not available in
> standard DRBD code. A modified version that supports this new replication
> protocol is available from git://aramis.nss.cs.ubc.ca/drbd-8.3-remus
Normally, "drbd:" disk strings would be handled by
/etc/xen/scripts/block-drbd, I think ? Why does remus need to do
something different ?
The block device handling in libxl is in a bit of a state of flux but
perhaps it would be useful to start thinking about whether remus could
use it ?
Thanks,
Ian.
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