> > > Thus, if you have used RAID-6 and have good or bad experiences, I'd > > > like to know them as soon as possible. > > > > Just tried setting up a RAID-6 on a new server, and I'm seeing > > complete filesystem corruption. > > # cd /mnt/root ; tar --one-file-system -cf - / | tar --preserve -xvf - ; > > cd / > > # umount /mnt/root > > # reiserfsck /dev/md1 # <-- many, many errors > > My reading of things was that /proc and any in-use mount points needed > to be handled specially when using tar to do the copy. Then again, the > --one-file-system argument could be taking care of that; I haven't heard > of using it. > > Is it OK to use tar on / including /proc and /dev like this? I've done the same thing with setting up RAID-5 in the past, so the procedure should be okay. --one-file-system excludes /proc, and tar handles special files in /dev properly. I can do more specific tests (writing particular data to the disk and reading it back), but I'm not sure what patterns would be useful. -jim - 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
