Dell PowerVault MD3220 - Manual (Page 182)

182 Configuration: Device Mapper Multipath for Linux
# multipath –ll
The output must be similar to this example, which shows the output for one
mapped virtual disk.
mpath1 (3600a0b80005ab177000017544a8d6b92) dm-0 DELL,
MD32xx
[size=5.0G][features=3 queue_if_no_path
pg_init_retries 50][hwhandler=1 rdac][rw]
\_ round-robin 0 [prio=6][active]
\_ 5:0:0:0 sdc 8:32 [active][ready]
\_ round-robin 0 [prio=1][enabled]
\_ 4:0:0:0 sdb 8:16 [active][ghost]
where:
mpath1
is the name of the virtual device created by device mapper. It is
located in the /dev/mapper directory.
DELL
is the vendor of the device
MD3200
is the model of the device
Sdc
is the physical path to the owning controller for the device
Sdb
is the physical path to the non-owning controller for the device
The following is an example of SLES output:
mpathb(360080e500017b2f80000c6ca4a1d4ab8) dm-21
DELL,MD32xx
[size=1.0G][features=3 queue_if_no_path
pg_init_retries 50][hwhandler=1 rdac][rw]
\_ round-robin 0 [prio=6][active]
\_ 4:0:0:22 sdx 65:112 [active][ready]
\_ round-robin 0 [prio=1][enabled]
\_ 6:0:0:22 sdcl 69:144 [active][ghost
where:
mpathb
is the name of the virtual device created by device mapper. It is
located in the /dev/mapper directory.
book.book Page 182 Tuesday, June 18, 2013 2:53 PM