On Sat, Sep 05, 2009 at 04:26:09AM -0400, Luke S Crawford spake thusly: > Details, please. Are you using the coraid products? what do you do > for redundancy? what happens when the SAN box fails?
I am not using Coraid hardware although I have tried it out in the past. I found that it wasn't quite flexible enough for my use case. But I do use the Coraid vblade target and aoe initiator (Linux kernel module). I use Supermicro motherboards and chassis, buy the cheapest CPU I can get to work in that motherboard (pushing a couple hundred megabytes per second while not doing any TCP/IP or encryption or compression of any sort is cheap on CPU), put a couple gig of RAM in it for cache, and plug it into the switch. It flies and hasn't failed me since I first started using it in 2006. For redundancy I deploy two boxes at a time. Currently 1u boxes with 4 1T disks being the most common although I have other 15k SAS disks involved also. I do absolutely no internal RAID on the SAN boxes. I do software mirroring in the virtual machine. If anything in the SAN box fails everything keeps running on the other one. -- Tracy Reed http://tracyreed.org
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