On Sun, 12 Dec 2010 20:37:56 -0700 "Patrick H." <linux-raid@xxxxxxxxxxxx>
wrote:
> Sent: Sun Dec 12 2010 20:13:47 GMT-0700 (Mountain Standard Time)
> From: Neil Brown <neilb@xxxxxxx>
> To: Patrick H. <linux-raid@xxxxxxxxxxxx> linux-raid@xxxxxxxxxxxxxxx
> Subject: Re: md device renaming
> > Sorry, I obviously didn't read properly...
> > It must be getting the old name from somewhere.
> > I would
> > - stop the array
> > - use "mdadm -E" to examine each device and see what name is recorded.
> > - look in /etc/mdadm.conf to see what name is there.
> > - check /dev/.mdadm/map or possible /var/run/mdadm/map to see if the
> > array is mentioned in there (it shouldn't be).
> >
> > to find out where the old name still is. Then at least you know what needs
> > fixing.
> > Just for completeness: what version of mdadm are you using?
> >
> > NeilBrown
> >
> At the bottom is the output from the `mdadm -E` after stopping the
> array. None of them say anything about the old name
> I'm not using mdadm.conf. This is part of a HA cluster, so I'm trying
> not to keep any info in local files, but all in the HA software
> (pacemaker). The only thing in mdadm.conf is "MAILADDR root" and "AUTO -all"
> /dev/.mdadm/ is completely empty, and /var/run/mdadm/map doesnt exist
> either (just a pid file in that dir)
>
> # mdadm --version
> mdadm - v3.1.3 - 6th August 2010
> # uname -r
> 2.6.32-71.el6.x86_64
>
>
> The first 2 disks are the ones that ended up in the array. The third
> disk is one I failed out so its not in it
Thanks.. that should be enough for me to go on. It doesn't make sense at
all, but hopefully some experimentation will make it all clear to me. I'll
let you know what I find.
NeilBrown
>
> # mdadm -E
> /dev/disk/by-path/ip-165.212.101.241\:3260-iscsi-iqn.165.212.101.240\:nas01.sdb1-lun-1
> /dev/disk/by-path/ip-165.212.101.241:3260-iscsi-iqn.165.212.101.240:nas01.sdb1-lun-1:
> Magic : a92b4efc
> Version : 1.2
> Feature Map : 0x0
> Array UUID : abddf4ea:06524e68:8e2b8f4e:1b24c56d
> Name : nas01:126 (local to host nas01)
> Creation Time : Thu Dec 9 20:41:53 2010
> Raid Level : raid5
> Raid Devices : 3
>
> Avail Dev Size : 524032 (255.92 MiB 268.30 MB)
> Array Size : 1048064 (511.84 MiB 536.61 MB)
> Data Offset : 224 sectors
> Super Offset : 8 sectors
> State : clean
> Device UUID : c38615d5:53c09e0c:33160bea:237031fd
>
> Update Time : Mon Dec 13 03:28:28 2010
> Checksum : 7e6f1bdd - correct
> Events : 4321
>
> Layout : left-symmetric
> Chunk Size : 128K
>
> Device Role : Active device 0
> Array State : AA. ('A' == active, '.' == missing)
>
> 2010/12/13 03:28:35
> root@nas01 /etc/syslog-ng # mdadm -E
> /dev/disk/by-path/ip-165.212.101.242\:3260-iscsi-iqn.165.212.101.240\:nas02.sdb1-lun-1
> /dev/disk/by-path/ip-165.212.101.242:3260-iscsi-iqn.165.212.101.240:nas02.sdb1-lun-1:
> Magic : a92b4efc
> Version : 1.2
> Feature Map : 0x0
> Array UUID : abddf4ea:06524e68:8e2b8f4e:1b24c56d
> Name : nas01:126 (local to host nas01)
> Creation Time : Thu Dec 9 20:41:53 2010
> Raid Level : raid5
> Raid Devices : 3
>
> Avail Dev Size : 524032 (255.92 MiB 268.30 MB)
> Array Size : 1048064 (511.84 MiB 536.61 MB)
> Data Offset : 224 sectors
> Super Offset : 8 sectors
> State : clean
> Device UUID : aab5bf73:94242880:8d28b333:f0c88918
>
> Update Time : Mon Dec 13 03:28:39 2010
> Checksum : f5a31a3a - correct
> Events : 4325
>
> Layout : left-symmetric
> Chunk Size : 128K
>
> Device Role : Active device 1
> Array State : AA. ('A' == active, '.' == missing)
>
> # mdadm -E
> /dev/disk/by-path/ip-165.212.101.243\:3260-iscsi-iqn.165.212.101.240\:nas03.sdb1-lun-1
> /dev/disk/by-path/ip-165.212.101.243:3260-iscsi-iqn.165.212.101.240:nas03.sdb1-lun-1:
> Magic : a92b4efc
> Version : 1.2
> Feature Map : 0x0
> Array UUID : abddf4ea:06524e68:8e2b8f4e:1b24c56d
> Name : nas01:iscsi-sdb1 (local to host nas01)
> Creation Time : Thu Dec 9 20:41:53 2010
> Raid Level : raid5
> Raid Devices : 3
>
> Avail Dev Size : 524032 (255.92 MiB 268.30 MB)
> Array Size : 1048064 (511.84 MiB 536.61 MB)
> Data Offset : 224 sectors
> Super Offset : 8 sectors
> State : clean
> Device UUID : 78faaa98:22154538:aeeab927:19a62875
>
> Update Time : Mon Dec 13 03:03:18 2010
> Checksum : c358be3f - correct
> Events : 3731
>
> Layout : left-symmetric
> Chunk Size : 128K
>
> Device Role : Active device 2
> Array State : AAA ('A' == active, '.' == missing)
>
>
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