On 8/7/07, saeed bishara <saeed.bishara@xxxxxxxxx> wrote: > Hi, > I'm looking for a method for doing RAID migration while keeping the > data available. > the migrations I'm interested with are: > 1. Single drive ->RAID1/RAID5 > 2. RAID1 -> RAID5. > 1. is a bit complicated, as a raid device on a disk is slightly smaller than the original device. you might need to copy data manually. 2. should be simple as (offline) re-creating the raid as raid5. > - can I really assume that RAID 5 on 2 hdds (degraded mode) will > function as raid 5? You should test by using loopback devices and files. But why degraded? raid5 of two disks should look like raid1. > - how to build raid while keeping the contents of an existing drive available? Normally the array is available when building/rebuilding. - tuomas - 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
