Dell PowerVault MD3200i Owner's Manual - Page 180
DELL, MD32xxi, located in the /dev/mapper directory.
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Display the multipath device topology using the multipath command The multipath command adds newly scanned and mapped virtual disks to the Device Mapper tables and creates entries for them in the /dev/mapper directory on the host server. These devices are the same as any other block devices in the host. To list all the multipath devices run the following command. # multipath -ll The output should be similar to this example, which shows the output for one mapped virtual disk. mpath1 (3600a0b80005ab177000017544a8d6b92) dm-0 DELL, MD32xxi [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 MD3200i 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,MD32xxi [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] 180 Configuration: Device Mapper Multipath for Linux
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