Hi,
I have a task of creating a few filesystems from external storage (HP 3PAR). The OS is RHEL 5.8.
These are the WWN of the storage devices :
Attached is the multipath.conf file in the server.
These were the steps I used for the OS to detect the disks :
The problem is there is no output for multipath -v2 and multipath -ll :
Why doesn't the OS detect the multipath device? I need to know the name of the mapped device, then use that device name to create the filesystem using LVM (pvcreate, vgcreate, lvcreate).
I have a task of creating a few filesystems from external storage (HP 3PAR). The OS is RHEL 5.8.
These are the WWN of the storage devices :
Code:
sht3par02 cli% showvv -host csixdb1 -d
Id Name Rd Mstr Prnt Roch Rwch PPrnt SPrnt PBlkRemain -------------VV_WWN------------- -----CreationTime------ Udid
142 csixdb1-backup_temp.0 RW 1/0/- --- --- --- --- -- -- 60002AC0000000000000008E0001EE00 2019-03-08 10:03:57 +08 142
143 csixdb1-backup_temp.1 RW 0/1/- --- --- --- --- -- -- 60002AC0000000000000008F0001EE00 2019-03-08 10:03:57 +08 143
144 csixdb1-backup_temp.2 RW 1/0/- --- --- --- --- -- -- 60002AC000000000000000900001EE00 2019-03-08 10:03:57 +08 144
145 csixdb1-backup_temp.3 RW 0/1/- --- --- --- --- -- -- 60002AC000000000000000910001EE00 2019-03-08 10:03:57 +08 145
146 csixdb1-backup_temp.4 RW 1/0/- --- --- --- --- -- -- 60002AC000000000000000920001EE00 2019-03-08 10:03:57 +08 146
147 csixdb1-backup_temp.5 RW 0/1/- --- --- --- --- -- -- 60002AC000000000000000930001EE00 2019-03-08 10:03:57 +08 147
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6 total 0
sht3par02 cli%Attached is the multipath.conf file in the server.
These were the steps I used for the OS to detect the disks :
Code:
modprobe dm-multipath
service multipathd start
multipath -d (this will perform a dry to make sure you are happy with everything, fix anything that appears as a problem)
multipath -v2 (commits the configuration)
multipath -ll
chkconfig multipathd on (make devices are configured after a reboot)The problem is there is no output for multipath -v2 and multipath -ll :
Code:
[root@csixdb1 ~]# multipath -v2
[root@csixdb1 ~]#
Code:
[root@csixdb1 ~]# multipath -ll
[root@csixdb1 ~]#Why doesn't the OS detect the multipath device? I need to know the name of the mapped device, then use that device name to create the filesystem using LVM (pvcreate, vgcreate, lvcreate).
