Re: [Xen-users] Advice on redundant SAN/NAS storage for Xen

[Nathan Stratton <nathan@xxxxxxxxxxxx>]

On Sun, 31 May 2009, Fajar A. Nugraha wrote:

> Can you emulate the shared storage using DRBD? Sure. But it introduces
> another layer of complexity.  Plus you need synchronous
> primary-primary mode which introduced additional complexity,
> performance penalty, and (taken from drbd site) "These systems are
> very sensitive to failures of the replication network. Currently we
> cannot generally recommend this for production use"
Some of that is a bit dated, we have been running DRBD in 4 production 
10 TB clusters for over a year now.
> <>
Nathan Stratton                                CTO, BlinkMind, Inc.
nathan at robotics.net                         nathan at blinkmind.com
http://www.robotics.net                        http://www.blinkmind.com

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