On 05/02/2012 08:42 AM, Dave Howorth wrote:
Lew Wolfgang wrote:
I'm assuming that I can physically remove one of the RAID-6 arrays and install the disks in another (identical) chassis. An empty and uninitialized array will also be in the second chassis. Do I need to do anything with mdadm to cause the mirror on the second chassis to rebuild the empty array with the data from the first chassis? Would it be a matter of just plugging in the disks, turn on the power and step back? Or will some mdadm ju-ju be required? Will the wrong array be replicated? I expect some mdadm ju-ju will be required. After all, it has no way of telling that it's supposed to overwrite those disks, unless you tell it. You'll first need to tell the LSI controller how to use them, as well.
Hi Dave, The LSI controllers shouldn't be a problem. I've tested this in the past with 3ware controllers and it worked even between controller models. The RAID configuration is kept on the disks themselves, the controller didn't "keep state", at least for 3ware.
But you're going to test this procedure before you put it into service, right? So it should be fairly easy to follow your nose and figure out the precise ju-ju that's needed.
Yup, it will be tested. I'm just trying to do my homework first. Regards, Lew -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org