Checking your queue depth with kdb.
Just say you
change the queue_depth on a hdisk
with chdev –P . This updates the devices
ODM information only, not its running configuration. The new value will take
effect next time I reboot the system. So now I have a different queue_depth in the ODM compared to the
devices current running config (in the kernel). What if I
forget that I’ve made this change to the ODM and forget to reboot the system
for many months? Someone complains of an I/O performance issue....I check the
queue_depths and find they appear to be set appropriately... [More]
Tags: chris lsattr 7.1 chdev queue_depth aix odm -p kdb 6.1 gibson |
nimadm - multibos error!?
I’ve been working with a customer recently on
an issue with nimadm . They were
attempting to migrate a system from AIX 5.3 to 7.1 using nimadm . The NIM client AIX
level was 5.3 TL12 SP4 and the NIM master was running AIX 7.1 TL1 SP1. lpar1
: / # oslevel -s 5300-12-04-1119 root@nim1
: / # oslevel -s 7100-01-01-1141 They were
running the following nimadm command: #
nimadm -j nimadmvg -c lpar1 -s spotaix710101 -l lpp_sourceaix710101 -d hdisk1
-Y The nimadm operation would always fail at phase 11: ... [More]
Tags: altinst_rootvg nimadm: client attention: cloning error returned multibos 6 unexpected init_multibos() 11 7.1 phase alt_disk_copy: nimadm on result an .1 0505-218 5.3 aix 0505-187 |
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