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High-Availability, Linux Command-Line, SAS-Raid Controller

post #1 of 6
Thread Starter 
As the title of the thread states does anyone know of a RAID controller that is SAS compatible with HA and linux command line tools so we could basically install two of these into a SuperMicro white box and have failover between the two but with the command line I could have it so each controller could see ALL the drives. Don't know if they exist, but I trust the over clockers. hope you know of something. Thanks in advance, rep for a find smile.gif
post #2 of 6
What's HA? What do you mean by failover between the two cards? You'd have to have each card have its own array and have the OS manage syncing the 2 to be mirrors. Areca has a command line tool as an alternative to the web interface. They also support Telnet.
 
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post #3 of 6
Thread Starter 
HA is high availability so if one goes down, it moves all the load to the other without down time. HA is another term for failover. Basically there are 24 disks that are maintained by TWO HBA's. So if one of the HBA's died, the other picks up where it left off.
post #4 of 6
Something like that is another one of these things I Can find no information about because you have to be from a giant corporation to even get a reply from these companies for real info about their products, and to get those jobs you need to have grown up with a silver spoon in your mouth. It would likely be cheaper to build another identical system to take over. None of the main line RAID cards or HBAs (Areca, LSI, Adaptec, 3ware, etc.) I've seen will do anything like this. I believe you would also need drives with two SAS ports. Another huge expense.
 
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post #5 of 6
Thread Starter 
It's a major niche market (white-box storage systems). You're right, it's hard to find info on stuff like this and I don't have enough time to build custom drivers and scripts to automate it. As much as I don't like paying for IBM service or HP customer care, they've already got firmware and tools built out. It's unfortunate but I think I might have to bite the bullet and just pay for the name brand stuff. Thanks @ramicio
post #6 of 6
@OP

The stuff you're talking about is pretty specialist but it certainly exists; as you say it's likely name brand hardware that has it already to go, and it likely involves FC drives.

You can do something similar with a combination of dual white boxes running OpenFiler, DRBD, HA and 10Gb Ethernet. Look here for a basic guide.
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