[sclug] Mirror disks across machines like distributed RAID?

Dickon Hood dickon-ml at fluff.org
Sat Jan 2 00:20:38 UTC 2010

On Fri, Jan 01, 2010 at 23:48:24 +0000, John Stumbles wrote:
: ISTR some discussion here on something like this but can't find the thread.

: Anyway it got me thinking that a RAID-1 filesystem's all very well for 
: preserving the data on a disk but it doesn't help if/when the host 
: system goes bad, and I could really do with having two boxes capable of 
: running the same services (NFS, SAMBA, imapd, httpd etc) each with one 
: of the HDDs that would be in the fileserver, and to replicate data from 
: one HDD to the other.

iSCSI.  Export the block device from the server to the client, use it as
any other block device (so add it to LVM / md / whathaveyou) on the
client.  Job's a goodun.  And it's standard.

Dickon Hood

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