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All, I have multipath configured with an HP MSA 1000 with 2
servers connected and am able to get a list of drives: u01 (3600805f3000e80908183e8993f630007) [size=24
GB][features="0"][hwhandler="0"] \_ round-robin 0 [active] \_ 0:0:1:2 sda 8:0 [active][ready] \_ round-robin 0 [enabled] \_ 1:0:1:2 sdd 8:48 [failed][faulty] vote (3600805f3000e809048e185c3b427000a) [size=251
MB][features="0"][hwhandler="0"] \_ round-robin 0 [active] \_ 0:0:1:4 sdc 8:32 [active][ready] \_ round-robin 0 [enabled] \_ 1:0:1:4 sdf 8:80 [failed][faulty] ocr (3600805f3000e8090d57e99af0d1f0008) [size=251
MB][features="0"][hwhandler="0"] \_ round-robin 0 [active] \_ 0:0:1:3 sdb 8:16 [active][ready] \_ round-robin 0 [enabled] \_ 1:0:1:3 sde 8:64 [failed][faulty] My /var/log/messages is throwing these errors: Aug 28 15:10:21 server01 kernel: Device sdf not ready. Aug 28 15:10:22 server 01 kernel: Device sdd not ready. Aug 28 15:10:22 server 01 kernel: Device sde not ready. Aug 28 15:10:22 server 01 kernel: Device sdf not ready. Aug 28 15:10:32 server 01 kernel: Device sdd not ready. Aug 28 15:10:32 server 01 kernel: Device sde not ready. Aug 28 15:10:32 server 01 kernel: Device sdf not ready. Aug 28 15:10:42 server 01 kernel: Device sdd not ready. Aug 28 15:10:42 server 01 kernel: Device sde not ready. Aug 28 15:10:43 server 01 kernel: Device sdf not ready. [user@server01 ~]$ sudo /sbin/multipath -v3 -l load path identifiers cache # # all paths in cache : # 3600805f3000e80908183e8993f630007 0:0:1:2 sda 8:0
[active][ready] COMPAQ /M 3600805f3000e8090d57e99af0d1f0008 0:0:1:3 sdb 8:16
[active][ready] COMPAQ / 3600805f3000e809048e185c3b427000a 0:0:1:4 sdc 8:32
[active][ready] COMPAQ / 3600805f3000e80908183e8993f630007 1:0:1:2 sdd 8:48
[failed][faulty] COMPAQ 3600805f3000e8090d57e99af0d1f0008 1:0:1:3 sde 8:64
[failed][faulty] COMPAQ 3600805f3000e809048e185c3b427000a 1:0:1:4 sdf 8:80
[failed][faulty] COMPAQ cciss!c0d0 blacklisted dm-0 blacklisted dm-1 blacklisted dm-2 blacklisted dm-3 blacklisted dm-4 blacklisted dm-5 blacklisted dm-6 blacklisted dm-7 blacklisted hda blacklisted md0 blacklisted ram0 blacklisted ram10 blacklisted ram11 blacklisted ram12 blacklisted ram13 blacklisted ram14 blacklisted ram15 blacklisted ram1 blacklisted ram2 blacklisted ram3 blacklisted ram4 blacklisted ram5 blacklisted ram6 blacklisted ram7 blacklisted ram8 blacklisted ram9 blacklisted ===== path info sda (mask 0x1) ===== bus = 1 dev_t = 8:0 size = 52420095 vendor = COMPAQ product = MSA1000 VOLUME rev = 4.48 h:b:t:l = 0:0:1:2 tgt_node_name = 0x500805f3000e8090 uid = 3600805f3000e80908183e8993f630007 (cache) ===== path info sdb (mask 0x1) ===== bus = 1 dev_t = 8:16 size = 514080 vendor = COMPAQ product = MSA1000 VOLUME rev = 4.48 h:b:t:l = 0:0:1:3 tgt_node_name = 0x500805f3000e8090 uid = 3600805f3000e8090d57e99af0d1f0008 (cache) ===== path info sdc (mask 0x1) ===== bus = 1 dev_t = 8:32 size = 514080 vendor = COMPAQ product = MSA1000 VOLUME rev = 4.48 h:b:t:l = 0:0:1:4 tgt_node_name = 0x500805f3000e8090 uid = 3600805f3000e809048e185c3b427000a (cache) ===== path info sdd (mask 0x1) ===== bus = 1 dev_t = 8:48 size = 52420095 vendor = COMPAQ product = MSA1000 VOLUME rev = 4.48 h:b:t:l = 1:0:1:2 tgt_node_name = 0x500805f3000e8090 uid = 3600805f3000e80908183e8993f630007 (cache) ===== path info sde (mask 0x1) ===== bus = 1 dev_t = 8:64 size = 514080 vendor = COMPAQ product = MSA1000 VOLUME rev = 4.48 h:b:t:l = 1:0:1:3 tgt_node_name = 0x500805f3000e8090 uid = 3600805f3000e8090d57e99af0d1f0008 (cache) ===== path info sdf (mask 0x1) ===== bus = 1 dev_t = 8:80 size = 514080 vendor = COMPAQ product = MSA1000 VOLUME rev = 4.48 h:b:t:l = 1:0:1:4 tgt_node_name = 0x500805f3000e8090 uid = 3600805f3000e809048e185c3b427000a (cache) # # all paths : # 3600805f3000e80908183e8993f630007 0:0:1:2 sda 8:0
[active][ready] COMPAQ /M 3600805f3000e8090d57e99af0d1f0008 0:0:1:3 sdb 8:16
[active][ready] COMPAQ / 3600805f3000e809048e185c3b427000a 0:0:1:4 sdc 8:32
[active][ready] COMPAQ / 3600805f3000e80908183e8993f630007 1:0:1:2 sdd 8:48
[failed][faulty] COMPAQ 3600805f3000e8090d57e99af0d1f0008 1:0:1:3 sde 8:64
[failed][faulty] COMPAQ 3600805f3000e809048e185c3b427000a 1:0:1:4 sdf 8:80 [failed][faulty]
COMPAQ params = 0 0 2 1 round-robin 0 1 1 8:0 100 round-robin 0 1 1
8:48 100 status = 1 0 0 2 1 A 0 1 0 8:0 A 0 E 0 1 0 8:48 F 2 u01 (3600805f3000e80908183e8993f630007) [size=24
GB][features="0"][hwhandler="0"] \_ round-robin 0 [active] \_ 0:0:1:2 sda 8:0 [active][ready] \_ round-robin 0 [enabled] \_ 1:0:1:2 sdd 8:48 [failed][faulty] params = 0 0 2 1 round-robin 0 1 1 8:32 100 round-robin 0 1
1 8:80 100 status = 1 0 0 2 1 A 0 1 0 8:32 A 0 E 0 1 0 8:80 F 2 vote (3600805f3000e809048e185c3b427000a) [size=251
MB][features="0"][hwhandler="0"] \_ round-robin 0 [active] \_ 0:0:1:4 sdc 8:32 [active][ready] \_ round-robin 0 [enabled] \_ 1:0:1:4 sdf 8:80 [failed][faulty] params = 0 0 2 1 round-robin 0 1 1 8:16 100 round-robin 0 1
1 8:64 100 status = 1 0 0 2 1 A 0 1 0 8:16 A 0 E 0 1 0 8:64 F 2 ocr (3600805f3000e8090d57e99af0d1f0008) [size=251
MB][features="0"][hwhandler="0"] \_ round-robin 0 [active] \_ 0:0:1:3 sdb 8:16 [active][ready] \_ round-robin 0 [enabled] \_ 1:0:1:3 sde 8:64 [failed][faulty] [user@server01 ~]$ ls -l /dev |grep sd brw-rw---- 1 root disk 8, 0 Aug 28 05:28 sda brw-rw---- 1 root disk 8, 1 Aug 28 05:28 sda1 brw-rw---- 1 root disk 8, 16 Aug 28 05:28 sdb brw-rw---- 1 root disk 8, 17 Aug 28 05:28 sdb1 brw-rw---- 1 root disk 8, 32 Aug 28 05:28 sdc brw-rw---- 1 root disk 8, 33 Aug 28 05:28 sdc1 brw-rw---- 1 root disk 8, 48 Aug 28 05:28 sdd brw-rw---- 1 root disk 8, 64 Aug 28 05:28 sde brw-rw---- 1 root disk 8, 80 Aug 28 05:29 sdf ##### multipath.conf ###### ## Use user friendly names, instead of using WWIDs as names. defaults { user_friendly_names yes } defaults { multipath_tool "/sbin/multipath -v0" udev_dir /dev polling_interval 10 selector "round-robin 0" path_grouping_policy failover getuid_callout "/sbin/scsi_id -g -u -s
/block/%n" prio_callout "/bin/true" default_features "0" rr_min_io 100 failback immediate user_friendly_name yes } blacklist { wwid 26353900f02796769 devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*" devnode "^hd[a-z][[0-9]*]" devnode "^sd[a-z][[0-9]*]" devnode "^cciss!c[0-9]d[0-9]*[p[0-9]*]" } multipaths { multipath { wwid
3600805f3000e80908183e8993f630007 alias u01 } multipath { wwid
3600805f3000e8090d57e99af0d1f0008 alias ocr } multipath { wwid
3600805f3000e809048e185c3b427000a alias vote } } devices { device { vendor "COMPAQ" product "MSA1000" path_grouping_policy group_by_serial getuid_callout "/sbin/scsi_id
-g -u -s /block/%n" } } Any help would be much appreciated. I just need to keep the
kernel from trying to access those SCSI devices that are there for failover.
JB |
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