Index - Red Hat ENTERPRISE LINUX - ONLINE STORAGE RECONFIGURATION GUIDE BETA Configuration Manual

Red Hat Enterprise Linux
Procedure 4. Working Around Stale LUNs
1. Determine which
To do this, run the following command:
ls -l /dev/mpath | grep <stale LUN>
2. For example, if
results may appear:
lrwxrwxrwx 1 root root 7 Aug
../dm-4
lrwxrwxrwx 1 root root 7 Aug
-> ../dm-5
This means that 3600d0230003414f30000203a7bc41a00 is mapped to two
links: and
dm-4
3. Next, open
/etc/lvm/.cache
links that
<stale LUN>
Using the same example in the previous step, the lines you need to delete are:
/dev/dm-4
/dev/dm-5
/dev/mapper/3600d0230003414f30000203a7bc41a00
/dev/mapper/3600d0230003414f30000203a7bc41a00p1
/dev/mpath/3600d0230003414f30000203a7bc41a00
/dev/mpath/3600d0230003414f30000203a7bc41a00p1
F
feedback
contact information for this manual, 4
14
link entries in
mpath
is 3600d0230003414f30000203a7bc41a00, the following
<stale LUN>
2 10:33 /3600d0230003414f30000203a7bc41a00 ->
2 10:33 /3600d0230003414f30000203a7bc41a00p1
.
dm-5
. Delete all lines containing
maps to.

Index

are specific to the stale LUN.
/etc/lvm/.cache
<stale LUN>
mpath
and the
mpath