Ugo Bellavance a écrit : > Hi, > > I have an HP MSA 2000i as SAN (iSCSI) and since I'm starting with SANs, > I'm seeking for advice. We are currently using HP Proliant 380 G5 + MSA > 70 (SAS, direct-attached storage) for our production servers. > > At first, I thought I'd be using the SAN only for non-critical > operations, like temporary additional storage for disk-based backups and > snapshots, so I planned on using my existing network equipement to > connect the SAN. Now I'd like to use it as storage for some blade > servers that I want to use for virtualisation, so reliability is more > important. > > I'd just like to evaluate the risk, to make sure I plan correctly. The > SAN is a dual controller, dual-port, with a mix of RAID10 and RAID 50 > arrays, so this is pretty solid. However, if I'm using only one switch > to connect the initiators to this SAN, is it more risky than relying on > the non-redundant RAID controllers that are in my HP servers? > > If it is recommended that I use multipathing, I guess that means 2 > switches, additionnal nics but also another interconnect in the blade > enclosure? > > If you need more information, just let me know :). I realized this might be too OT, so I posted here... http://forums13.itrc.hp.com/service/forums/questionanswer.do?threadId=1330854 There are interresting answers. Regards and sorry for the noise. Ugo