Nicola Murino wrote: > Brian Wong ha scritto: >> >> 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, > Ah, the infamous EMC CX. There was some bug in the EMC firmware that returned a non-standard VPD page 0x83 (pre-spc3 format). You'll have to check scsi_id, it should have some fixes for it. Be sure to have the most recent version of scsi_id (resp udev) installed. It should be called with the option '-p pre-spc3-83'. Alternatively there is always the possibility of a misconfiguration; AFAIK EMC has a setting to always return the same information for each drive; of course this should be switched off ... Cheers, Hannes -- Dr. Hannes Reinecke hare@xxxxxxx SuSE Linux Products GmbH S390 & zSeries Maxfeldstraße 5 +49 911 74053 688 90409 Nürnberg http://www.suse.de -- dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
