[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Preparing for zfs filesystem

You will need to destroy the raid with mdadm or write 0s to the beginning and end of each drive.  Information on the raid assembly is written on each member

On Jun 9, 2013 6:49 PM, "Robert G. (Doc) Savage" <dsavage@peaknet.net> wrote:
Trying to remove all traces of the old software RAID capability so
there's no conflict with the ZFS creation. So far I have:

1. Unmounted the array from its mountpoint:
        # umount /pub
2. Removed the array's entry from /etc/fstab:
        /dev/md127p1   /pub   ext4   defaults   1 1
3. Disable creation of the array at next boottime:
        # mv /etc/mdadm.conf /etc/mdadm.conf.backup

I've obviously missed something because upon reboot, dmesg says:

md: bind<sdj>
md: bind<sdf>
md: bind<sdi>
md: bind<sdk>
md: bind<sdg>
md: bind<sdh>
md: bind<sdd>
md: bind<sdc>
md: bind<sde>
async_tx: api initialized (async)
xor: automatically using best checksumming function: generic_sse
   generic_sse: 10228.000 MB/sec
xor: using function: generic_sse (10228.000 MB/sec)
raid6: int64x1   2144 MB/s
raid6: int64x2   2992 MB/s
raid6: int64x4   2253 MB/s
raid6: int64x8   1992 MB/s
raid6: sse2x1    3160 MB/s
raid6: sse2x2    5472 MB/s
raid6: sse2x4    5878 MB/s
raid6: using algorithm sse2x4 (5878 MB/s)
raid6: using intx1 recovery algorithm
md: raid6 personality registered for level 6
md: raid5 personality registered for level 5
md: raid4 personality registered for level 4
bio: create slab <bio-1> at 1
md/raid:md127: device sde operational as raid disk 2
md/raid:md127: device sdc operational as raid disk 0
md/raid:md127: device sdd operational as raid disk 1
md/raid:md127: device sdh operational as raid disk 5
md/raid:md127: device sdg operational as raid disk 4
md/raid:md127: device sdk operational as raid disk 8
md/raid:md127: device sdi operational as raid disk 6
md/raid:md127: device sdf operational as raid disk 3
md/raid:md127: device sdj operational as raid disk 7
md/raid:md127: allocated 9574kB
md/raid:md127: raid level 5 active with 9 out of 9 devices, algorithm 2
RAID conf printout:
--- level:5 rd:9 wd:9
disk 0, o:1, dev:sdc
disk 1, o:1, dev:sdd
disk 2, o:1, dev:sde
disk 3, o:1, dev:sdf
disk 4, o:1, dev:sdg
disk 5, o:1, dev:sdh
disk 6, o:1, dev:sdi
disk 7, o:1, dev:sdj
disk 8, o:1, dev:sdk
md127: detected capacity change from 0 to 2399712313344
md127: p1

Can someone please suggest what's doing the drive detection and logical
metadrive assembly?


To unsubscribe, send email to majordomo@silug.org with
"unsubscribe silug-discuss" in the body.