SANs with block level replication?
Hello Folks :)
I'm currently looking to purchase two SAN's. I plan to use them for iSCSI/CIFS in conjunction with my VMWare vSphere (free) server. I'd like to move my virtual machine data to the SAN and run those over iSCSI as well as share out a slice of storage with ADS permissions over CIFS. I'd also like to be able to have the SANs provide failover, if one should fail the other picks up. (This requires some multipathing, I assume? I'm not privy to that just yet).
The second SAN, all I want it to do is replicate the data of the first SAN (ideally in real time).
We're a small business, so unfortunately that means small budget. I got a quote from Dell for two EQL 4000's (totaling something like $42,000). That's probably twice what we'd like to spend.
I've also priced out some "White box" SAN's running NexentaCore (Solaris Kernel with Ubuntu userland). By the time I add the blocklevel duplication plugin I start getting into Sun 7110 pricing.
Would a Sun Storage 7110 allow me to do this? Those are (surprisingly) even more reasonably priced than the EQL SANs' from Dell.
I look forward to hearing from you! Thank you for your suggestions.