-----BEGIN PGP SIGNED MESSAGE----- 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 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (MingW32) Comment: <a href="http://getfiregpg.org">http://getfiregpg.org</a> iEYEARECAAYFAklDUNsACgkQgyuXjr6dykvt0ACg2tOZUo/o6MtAQ2zfNR4glOUb WlYAoNKwUIq5AfyBgC4QhDDrO+yO24x4 =QP+n -----END PGP SIGNATURE----- <div class="gmail_quote">On Sat, Dec 13, 2008 at 3:57 AM, Maykel Moya <<a href="mailto:moya-lists@infomed.sld.cu">moya-lists@infomed.sld.cu</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> 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 -- Linux-cluster mailing list <a href="mailto:Linux-cluster@redhat.com">Linux-cluster@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/linux-cluster" target="_blank">https://www.redhat.com/mailman/listinfo/linux-cluster</a> </blockquote></div>