Hash: SHA1
Well..
When you have more than one path to access a storage-device (SAN), you
will need to install/configure some kind of MultiPath I/O.
IBM has RDAC, EMC has PowerPath, HP has SecurePath, and so on..
Linux device-mapper (md) has dm-multipath as an alternative for
proprietary drivers above cited, maybe you can use it to configure
your multipath storage.
BTW, this is off-topic here (if your problem really is multipath
configuration, as i guessed).
- --
Flávio do Carmo Júnior aka waKKu
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On Sat, Dec 13, 2008 at 3:57 AM, Maykel Moya <moya-lists@xxxxxxxxxxxxxx> wrote:
I have a SAN LUN exported to a four node cluster. I' m using Quorum Disk
and it was working OK (ie: shows up in clustat).
The cluster isn't yet in production. Some days ago another io path was
added to the SAN.
Today I issued a clustat and see no reference to qdiskd. The daemon
refused to start:
--
e1b01:~# qdiskd -fd
[21092] debug: Loading configuration information
[21092] debug: 0 heuristics loaded
[21092] debug: Quorum Daemon: 0 heuristics, 3 interval, 23 tko, 3 votes
[21092] debug: Run Flags: 00000035
[21092] crit: Specified device /dev/sda1 does match kernel's reported
sector size (0 != -1)
--
I wonder is there are any relationship between qdiskd failing and seeing
the LUN partition twice in each node. /dev/sda1 is the qdisk, also seen
as /dev/sdb1.
I tried to recreate the quorum disk and updated cluster.conf to use
device instead of label but still qdiskd refuse to start
I'm using:
linux 2.6.27
rhcs 2.03.08
openais 0.83
on debian lenny.
Thanks very much for your help
Regards,
maykel
---------------------------------------
Red Telematica de Salud - Cuba
CNICM - Infomed
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