Dual homed RAID cabinets
2007-12-24 21:16:00
We're looking to deploy a service where we have two servers running in a
redundant failover mode. I know we can use clustering software to do this
but... we're too cheap. We're looking to use a Dual-headed RAID cabinet
such as a D1000. We've heard different things about the ability of both
servers to read from the same box at the same time. Can we have one box
mount the FS read-write and the other mount it read-only?
I've been told that only on host can have control of the SCSI chain at
any given time (for reading or writing) and that a hard SCSI reset has to be
issued to the cabinet before the possibility of a switch of the controlling
host. I've also seen two Sun boxes using Veritas able to use differnt disks
on the same cabinet at the same time.
Does anyone have a link to some information so I can dispell hte myths and
start getting real info?
I'd appreciate any help.
-Terry
Comments
Got something to say?
You must be logged in to post a comment.
