On 01/21/2010 05:38 AM, Baho Utot wrote: > This is not an answer to your question directly... > > I have hardware raid on my desktop but I use software raid, raid5 and > raid 1 arrays using mdadm. > > The reason I don't use the on board raid or a hardware raid is that the > different manufactures use different methods causing problems when you > want move the array to another system or the raid card fails. Then you > usally lose the entire raid array. > With software raid you can move the raid to another system and it uses > whatever stat hardware that is in the system.. ie lose the stata card > just install another one and you are good. > > To replace a failed drive with software raid all that needs to be done > is to fail the drive using mdadm then physical remove and replace the > drive. Then use sfdisk to copy the partition setup from one of the > drives in the raid to the new drive. After the partitioning is complete > add the drive to the array using mdadm and your done. All that you need > to do is to monitor the rebuilding by a simple cat /proc/mdstat. > Baho, Thanks. I am arriving at that conclusion as well. Currently I have 6 onboard raid sets and 4 software sets. I have had good luck replacing failed disks with both in the past. I agree mdraid is much more flexible than dmraid and from the testing I've done between fake-raid and software raid there is 0 (zero) performance difference between the two. I'll let you know how this replacement goes. I'm in the process or copying partitions with gparted as we speak... -- David C. Rankin, J.D.,P.E. Rankin Law Firm, PLLC 510 Ochiltree Street Nacogdoches, Texas 75961 Telephone: (936) 715-9333 Facsimile: (936) 715-9339 www.rankinlawfirm.com
