Les Mikesell lesmikesell@gmail.com wrote:
No, I've had several SCSI drive failures in software raid and the kernel will gracefully log the errors, mark the drive failed in the md array and go on about its business. This doesn't happen with typical IDE devices, but the 3ware isn't a typical IDE controller.
Then the 3Ware card must not be doing something that a typical SCSI card does, and more typical of a "dumb" block ATA driver, even though it's using the SCSI subsystem.
If you do everything in the right order, you can replace a failed hot-swap scsi drive and rebuild the software raid without shutting the machine down.
Again, SCSI cards must have some added notification, or at least the ones you are using. I guess that would make sense, because there _is_ the "host adapter" on-board.
In any case, 3Ware cards do _not_ do it for JBOD.