We have a server with an Adaptec 5805 RAID 1 array, with two SAS 146GB disks. We need more space on this server.
Is it possible to hot-replace each 146GB HD with a 300GB HD, and let the controller reconstruct the array after each disk change? Is the new space left automatically visible after the second disk change?
Best Answer
That won't work sorry - if you removed the first disk and replaced it with the larger one that disk would be setup by the controller as through it were a 146GB disk not a 300GB disk and the same would occur when you replaced the second smaller disk.
That controller does support RAID-level migration however so you could add one of the new disks as a third member of a RAID 5 array but it would still only add 146GB to that array.