Promise Technology VTRAK E610f User Manual

Appendix C: Multipathing on Linux
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Task 5: Create and Mount Partitions
This step creates partitions on the logical drives in the VTrak subsystem. Then it
creates partitions and a file system to work with the device mapper. Finally, it
mounts the partition on the Host.
1. Open a terminal window.
2. Run a multipath list to identify the SCSI devices.
# multipath -list
The system returns:
22249000155459b3b dm-0 Promise,VTrak E610s
[size-16.0G][features=1 queue_if_no_path][hwhandler=0]
\_ round-robin 0 [prio-2][active]
\_ 3:0:0:0 sdd 8:48 [active][ready]
\_ 3:0:1:0 sdb 8:16 [active][ready]
222b4000155a75b49 dm-1 Promise,VTrak E610s
[size-12.0G][features=1 queue_if_no_path][hwhandler=0]
\_ round-robin 0 [prio=2][active]
\_ 3:0:1:1 sde 8:64 [active][undef]
\_ 3:0:0:1 sdc 8:32 [active][undef]
Note the multipath devices, circled in the example above. They are used in
steps 3 through 5.
3. To partition each SCSI device using fdisk.
# fdisk /dev/mapper/22249000155459b3b
Enter the appropriate commands in fdisk to build your partition.
Refer to the fdisk online help for more information.
4. Create corresponding partitions on each DM device (under /dev/mapper)
using kpartx.
# ls /dev/mapper
The system returns:
22249000155459b3b 222b4000155a75b49 control
# kpartx -a /dev/mapper/22249000155459b3b
The system does not return anything.
Repeat the command for the other multipath devices.

Promise Technology VTRAK E610f Specifications

General

Brand	Promise Technology
Model	VTRAK E610f
Category	Storage
Language	English