From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nicola Murino Subject: Re: EMC CX LUN problem [SOLVED] Date: Wed, 25 Jan 2006 20:42:13 +0100 Message-ID: <43D7D495.6000006@theorematica.it> References: <43D69CB0.8020402@theorematica.it> <1138141690.6009.8.camel@ca-bwong3.trans.corp> <43D73F73.4010907@theorematica.it> Reply-To: device-mapper development Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <43D73F73.4010907@theorematica.it> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com To: device-mapper development List-Id: dm-devel.ids Finally I solved my problem, the gulty was scsi_id, I install CentOS and scsi_id works as expected reporting different uuid for each lun this is my final situation: [root@server1 block]# scsi_id -g -u -s /block/sdb 36006016086f01600bc80c9afbc8dda11 [root@server1 block]# scsi_id -g -u -s /block/sdc 36006016086f01600463513d9978dda11 [root@server1 block]# scsi_id -g -u -s /block/sdd 36006016086f01600bc80c9afbc8dda11 [root@server1 block]# scsi_id -g -u -s /block/sde 36006016086f01600463513d9978dda11 [root@server1 block]# scsi_id -g -u -s /block/sdf 36006016086f01600bc80c9afbc8dda11 [root@server1 block]# scsi_id -g -u -s /block/sdg 36006016086f01600463513d9978dda11 [root@server1 block]# scsi_id -g -u -s /block/sdh 36006016086f01600bc80c9afbc8dda11 [root@server1 block]# scsi_id -g -u -s /block/sdi 36006016086f01600463513d9978dda11 multipath -l mail (36006016086f01600bc80c9afbc8dda11) [size=150 GB][features="1 queue_if_no_path"][hwhandler="1 emc"] \_ round-robin 0 [active] \_ 1:0:1:0 sdd 8:48 [active] \_ 2:0:1:0 sdh 8:112 [active] \_ round-robin 0 [enabled] \_ 1:0:0:0 sdb 8:16 [active] \_ 2:0:0:0 sdf 8:80 [active] ql (36006016086f01600463513d9978dda11) [size=500 GB][features="1 queue_if_no_path"][hwhandler="1 emc"] \_ round-robin 0 [active] \_ 1:0:1:1 sde 8:64 [active] \_ 2:0:1:1 sdi 8:128 [active] \_ round-robin 0 [enabled] \_ 1:0:0:1 sdc 8:32 [active] \_ 2:0:0:1 sdg 8:96 [active] scsi_id is broken in gentoo and ubuntu, at least for this setup infact I have a working multipath setup using gentoo with some minor difference in hardware equipment, thanks to all, regards Nicola Nicola Murino ha scritto: > Brian Wong ha scritto: >> On Tue, 2006-01-24 at 22:31 +0100, Nicola Murino wrote: >> >>> Hi, >>> >>> I'm trying to configure a new emc cx storage, I have the following: >>> >>> 2 server, each server has a qla2462 dual port hba >>> each qla2462 is connected to a switch (only one switch) >>> 1 emc cx storage with 4 path connected to the switch >>> >>> I defined two lun on the storage however I'm able to see only one LUN >>> >>> multipath -l show the following: >>> >>> multipath -l >>> mail (36006016086f01600e46f567adb8cda11) >>> [size=150 GB][features="1 queue_if_no_path"][hwhandler="1 emc"] >>> \_ round-robin 0 [active] >>> \_ 1:0:1:0 sdd 8:48 [active][ready] >>> \_ 1:0:1:1 sde 8:64 [active][ready] >>> \_ 2:0:1:0 sdh 8:112 [active][ready] >>> \_ 2:0:1:1 sdi 8:128 [active][ready] >>> \_ round-robin 0 [enabled] >>> \_ 2:0:0:0 sdf 8:80 [active][ready] >>> \_ 1:0:0:0 sdb 8:16 [active][ready] >>> \_ 1:0:0:1 sdc 8:32 [active][ready] >>> \_ 2:0:0:1 sdg 8:96 [active][ready] >>> >>> >> >> i could be off in the weeds here, but this output looks wrong. the >> host:channel:target:lun numbers listed there suggest your cx is indeed >> surfacing luns 0 and 1, but multipath is grouping them under a single >> target ID. >> >> > Maybe you are right! I added another LUN and this is multipath output > > multipath -l > mail (36006016086f01600e46f567adb8cda11) > [size=150 GB][features="1 queue_if_no_path"][hwhandler="1 emc"] > \_ round-robin 0 [active] > \_ 2:0:0:0 sdh 8:112 [active][ready] > \_ 1:0:0:0 sdb 8:16 [active][ready] > \_ 1:0:0:1 sdc 8:32 [active][ready] > \_ 1:0:0:2 sdd 8:48 [active][ready] > \_ 2:0:0:1 sdi 8:128 [active][ready] > \_ 2:0:0:2 sdj 8:144 [active][ready] > \_ round-robin 0 [enabled] > \_ 1:0:1:0 sde 8:64 [active][ready] > \_ 1:0:1:1 sdf 8:80 [active][ready] > \_ 1:0:1:2 sdg 8:96 [active][ready] > \_ 2:0:1:0 sdk 8:160 [active][ready] > \_ 2:0:1:1 sdl 8:176 [active][ready] > \_ 2:0:1:2 sdm 8:192 [active][ready] > > >> i think emc engineers monitor this list; perhaps they can help. >> > maybe the problem is scsi_id that report the same output for all block > device, > > I have kernel 2.6.16-rc1 on a server and 2.6.13.5 on the other one, > > with 2.6.16-rc1 > > lsmod > Module Size Used by > dm_round_robin 3840 1 > dm_emc 5760 1 > dm_multipath 18696 3 dm_round_robin,dm_emc > qla2400 200448 0 > qla2xxx 116964 25 qla2400 > > with 2.6.13.5 > > > root@server1:/home/admin# lsmod > Module Size Used by > ehci_hcd 29576 0 > uhci_hcd 30864 0 > usbcore 104828 3 ehci_hcd,uhci_hcd > dm_round_robin 3712 1 > dm_emc 5632 1 > dm_multipath 18312 3 dm_round_robin,dm_emc > qla2xxx 110044 12 > firmware_class 8448 1 qla2xxx > > > hba controller are qlogic2462 > > thanks > Nicola > > > >> also, look at this if you havent already (there's a section on clariion >> cx's), and feel free to add your findings. >> >> http://christophe.varoqui.free.fr/wiki/wakka.php?wiki=TestedEnvironments >> >> hope that helps, >> >> brian >> >> >> -- >> dm-devel mailing list >> dm-devel@redhat.com >> https://www.redhat.com/mailman/listinfo/dm-devel >> >> > > -- > dm-devel mailing list > dm-devel@redhat.com > https://www.redhat.com/mailman/listinfo/dm-devel >