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Hi, I am trying to configure multipathing on Red hat 4 update 6
64 bit. Below is the list of RPM I have installed rpm -qa | grep
mapper device-mapper-1.02.21-1.el4 device-mapper-1.02.21-1.el4 device-mapper-multipath-0.4.5-27.RHEL4 The hardware is Sun x4600 and I am using QLA cards. The
system has two LUNs presented to it of size 10 GB and size 90 GB There is a problem when I configure file system on it. I am
able to access and mount the file system. But when I add those entries in /etc/fstab,
the system would not recognize those devices. Below is the output from multipath command multipath -ll mpath5
(3600508b40010541d00009000065d0000) [size=90
GB][features="1 queue_if_no_path"][hwhandler="0"] \_ round-robin 0
[prio=100][active] \_ 1:0:0:2
sdd 8:48 [active][ready] \_ 2:0:0:2
sdh 8:112 [active][ready] \_ round-robin 0
[prio=20][enabled] \_ 1:0:1:2
sdf 8:80 [active][ready] \_ 2:0:1:2
sdj 8:144 [active][ready] mpath4
(3600508b40010541d00009000065a0000) [size=10
GB][features="1 queue_if_no_path"][hwhandler="0"] \_ round-robin 0
[prio=100][enabled] \_ 1:0:1:1
sde 8:64 [active][ready] \_ 2:0:1:1
sdi 8:128 [active][ready] \_ round-robin 0
[prio=20][enabled] \_ 1:0:0:1
sdc 8:32 [active][ready] \_ 2:0:0:1
sdg 8:96 [active][ready] Also, below is my /etc/multipath.conf # This is an
example configuration file for device mapper multipath. # For a complete
list of the default configuration values, see #
/usr/share/doc/device-mapper-multipath-0.4.5/multipath.conf.defaults # For a list of
configuration options with descriptions, see #
/usr/share/doc/device-mapper-multipath-0.4.5/multipath.conf.annotated # Blacklist all
devices by default. Remove this to enable multipathing # on the default
devices. #devnode_blacklist
{ #
devnode "*" #} ## Use user
friendly names, instead of using WWIDs as names. defaults {
user_friendly_names yes
selector "round-robin 0" } ## By default,
devices with vendor = "IBM" and product = "S/390.*" are ## blacklisted.
To enable mulitpathing on these devies, uncomment the ## following
lines. #devices { #
device { #
vendor
"IBM" #
product
"S/390 DASD ECKD" #
path_grouping_policy multibus #
getuid_callout
"/sbin/dasdview -j -f /dev/%n" #
path_checker
directio #
} #} ## ## This is a
template multipath-tools configuration file ## Uncomment the
lines relevent to your environment ## #defaults { #
udev_dir
/dev #
polling_interval 10 #
selector
"round-robin 0" #
path_grouping_policy multibus #
getuid_callout "/sbin/scsi_id
-g -u -s /block/%n" #
prio_callout
/bin/true #
path_checker
readsector0 #
rr_min_io
100 #
rr_weight
priorities #
failback
immediate #
no_path_retry fail #
user_friendly_name yes #} ## ## The wwid line
in the following blacklist section is shown as an example ## of how to
blacklist devices by wwid. The 3 devnode lines are the ## compiled in
default blacklist. If you want to blacklist entire types ## of devices,
such as all scsi devices, you should use a devnode line. ## However, if
you want to blacklist specific devices, you should use ## a wwid
line. Since there is no guarantee that a specific device will ## not change
names on reboot (from /dev/sda to /dev/sdb for example) ## devnode lines
are not recommended for blacklisting specific devices. ## devnode_blacklist
{
wwid 3600508e000000000ed7fb52911133c06
devnode "^(ram|raw|loop|fd|md|sr|scd|st)[0-9]*"
devnode "^hd[a-z]" } #multipaths { #
multipath { #
wwid
3600508b4000156d700012000000b0000 #
alias
yellow #
path_grouping_policy multibus #
path_checker
readsector0 #
path_selector
"round-robin 0" #
failback
manual #
rr_weight
priorities #
no_path_retry 5 #
} #
multipath { #
wwid
1DEC_____321816758474 #
alias
red #
} #} #devices { #
device { #
vendor
"COMPAQ " #
product
"HSV110 (C)COMPAQ" #
path_grouping_policy multibus #
getuid_callout
"/sbin/scsi_id -g -u -s /block/%n" #
path_checker
readsector0 #
path_selector
"round-robin 0" #
hardware_handler "0" #
failback
15 #
rr_weight
priorities #
no_path_retry queue #
} #
device { #
vendor
"COMPAQ " #
product
"MSA1000 " #
path_grouping_policy multibus #
} #} Here is the contents of the /dev/mpath/ [root@x mpath]#
pwd /dev/mpath [root@x mpath]#
ls -all total 0 drwxr-xr-x
2 root root 80 Jan 16 17:34 . drwxr-xr-x
12 root root 5260 Jan 17 08:17 .. lrwxrwxrwx
1 root root 7 Jan 16 17:34 mpath4 -> ../dm-8 lrwxrwxrwx
1 root root 7 Jan 16 17:34 mpath5 -> ../dm-9 Can anyone please help me with this? I think I am missing
some configuration on the system which is causing this. Thanks, |
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