Clustered storage options -- desperately seeking advice
mike.mitchell at missionmode.com
Tue Oct 23 10:26:54 CDT 2007
I am trying to nail down what equipment I need to be looking for that
works well for:
1. Storage of online database files (specifically EnterpriseDB) in
clustered fashion. I.e. I have two servers accessing the same
storage simultaneously to facilitate speedy recovery upon primary DB
2. General fileserving to a larger number of servers via NFS or
something similar (iSCSI perhaps). This also needs to be redundant/
clustered such that one server going down doesn't prevent storage
access by the other servers.
If I can accomplish both of these things with one storage box that
would be ideal. However, a number of questions have come up that I
don't know the answers to--perhaps someone on this list does?:
1. Would iSCSI connections to a RAID-10 filesystem work well for a
database that needs to be high-performance transactional processing?
Or is Fibre/SAS to be preferred for some reason?
2. I don't know much about iSCSI yet--is it suitable (or even
possible) to connect lots of servers to the same storage unit for
shared fileserving, or is it preferable to just connect a couple via
iSCSI as a storage cluster and then NFS to the rest?
3. It seems like all the storage options Dell has are not really
officially supported via a RedHat storage cluster--is anyone using
any storage from Dell (or anyone else) in this configuration and has
some experience to share on its performance, issues, manageability,
Help! Time is short, thanks...
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