On Tuesday August 7, saeed.bishara@xxxxxxxxx wrote: > > 2. should be simple as (offline) re-creating the raid as raid5. > this didn't work, I created raid1 array on sda[12], then stopped it, > and created new raid5 on sda[123], the data on the raid1 was not > preserved. Create the new raid5 on sda[12] (same 2 devices as the raid1) and it will work. Then grow to make it raid5 on 3 drives if you want. > > > > > - 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. > I meant to ask whether raid 5 on 2 disks will function as raid1 :( A 2-disk raid5 and a 2-disk raid1 put the data in exactly the same place - is that what you wanted to know? NeilBrown - 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
