Clustered storage options -- desperately seeking advice

Mike Mitchell mike.mitchell at
Tue Oct 23 10:26:54 CDT 2007

Hi all,

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  
server failure.

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...


More information about the Linux-PowerEdge mailing list