2017-07-01 15:42 GMT+02:00 Drew <drew.kay@xxxxxxxxx>: > In the defense of the hw raid vendor I've worked with quite a bit > (LSI), I've found you can migrate RAID arrays from controller to > controller quite easily. So if your raid controller fails, you can > always grab the current available controller that supports your > required raid level. I've created arrays in the older 1068 controller > (PCI-X card) and easily migrated it to a newer 2008 or 2108 based > controller with no fuss. See's the older array as an 'external' array > and imports just fine. This is true for "real" LSI controllers. But if you look at DELL specs, DELL is supporting only 1 generation to 1 generation migration. DELL firmware is different from LSI, I'm unsure what could happen by migrating a raid array between multiple generations. And in additiojn to this, DELL doesn't provide any kind of support to move disks skipping more than 1 generation. -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html