Should I use devices in /dev/mpath directly?

Solution Verified - Updated -

Issue

  • Should I use devices in /dev/mpath directly ?

  • When creating partitions on newly-added multipath devices, the system doesn't update those partition entries in /dev/mpath.

  • There are missing partition devices in /dev/mpath:

# ls -al /dev/mpath*

lrwxrwxrwx  1 root root     8 Dec  3 19:19 mpath0 -> ../dm-25
lrwxrwxrwx  1 root root     8 Dec  3 19:19 mpath0p1 -> ../dm-51
lrwxrwxrwx  1 root root     8 Dec  3 19:19 mpath1 -> ../dm-26
lrwxrwxrwx  1 root root     8 Dec  3 19:19 mpath1p1 -> ../dm-59
...
lrwxrwxrwx  1 root root     9 Jan 31 09:53 mpath613 -> ../dm-105
lrwxrwxrwx  1 root root     9 Jan 31 09:53 mpath614 -> ../dm-106
lrwxrwxrwx  1 root root     9 Jan 31 09:53 mpath615 -> ../dm-107
lrwxrwxrwx  1 root root     9 Jan 31 09:53 mpath616 -> ../dm-108

Environment

  • Red Hat Enterprise Linux 5
  • device-mapper-multipath
  • Storage added after system boot

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

Log in for full access

Log In