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In Controllers / RAID Cards

I have 2 of these cards. This card showed me that it's possible for more than one server to see the same SAS storage drives at the same time. It was that amazing moment where you know it must be possible or Microsoft Failover Clustering will be impossible and I'd have to resort the the much inferior iSCSI for failover. Works incredibly well, with jbods like the AMAX StorMax J2241, the Dell MD1220, and the Data-ON DNS series. Driver support for windows seems great, they update regularly enough. I haven't used it for ESXi or VMWare yet, but I expect it to be solid given the prevalence of this card. It's literally the bread-and-butter of any datacenter. It works well with the LSI Interposer card, even when that card is attached to Samsung 840 Pro SSDs! It works well with MultiPath IO, which is part of Microsoft's Storage Spaces' path redundancy = more redundancy = good. It works well with the LSI SAS Swtich (note: Microsoft doesn't support sas switches yet) It can see regular sata drives, but failover clustering ONLY works with SAS drives (because they have 2 data paths), so don't blame LSI if you're using drives physically incapable of the task. Lastly, their support has been good to me. I've only had a few minor questions though and so answering my emails within 48 hours was perfectly acceptable.