Suggestions on providing HA access to an external (fibre) RAID subsystem

Posted by user145198 on Server Fault See other posts from Server Fault or by user145198
Published on 2012-11-12T20:19:35Z Indexed on 2012/11/12 23:03 UTC
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linux

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high-availability

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cluster

We are looking at upgrading our storage capacity with an external RAID subsystem that has redundant (2) fibre controllers, each controller has 4 x 8 Gbps fibre ports. I would like to make access to this storage system occur via HA Linux.

Ideally I would connect 2 fibre ports from each controller into each Linux server, and then export either NFS or iSCSI via a 10 Gbe interface.

I have seen plenty of references to DRBD, however all of those references tend to use block storage that is solely attached to each machine, rather than having a shared block storage device, so I am unsure if DRBD could (or should) be used in this case.

Ideas?

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