On 03/12/2013 01:30 AM, Arun Khan wrote: > > @ Gordon - thanks for sharing this piece of info! In case of RAID > card failure, it is important to be able to recover the data (RAID > device) with a compatible replacement. Are the LSI MegaRAID > controller more reliable in this respect? I don't know. I would contact LSI support or sales and see what they have to say about it. I haven't had the occasion to move a disk array between one and another model of MegaRAID controller. > Software RAID is an option but I don't think hot swap is possible > without some tinkering with the mdadm tool a priori. > The systems will go to client site (remote), prefer to keep the > support calls to remove/replace hardware activity :( You're correct that adding a new disk to an mdadm array will require some CLI work. Probably most hardware RAID would do this automatically. I frequently do the CLI work remotely over SSH so that a local tech can swap the disk.