MirrorDisk/UX and logs

[Tomoaki SUZUKI]

Hi All,
I wanna know that HP-UX is monitoring
or not internal Disks which are mirror-broken.

syslog.log indicates the event?
then other logs?

Best Regards,

[Nick Wickens]

If LVM volumes then vgdisplay -v vgnn where vgnn is the volume group name will show mirrors as "Stale" rather than syncd.

[Bill Hassell]

There is no monitoring of mirrored drives at the LVM level. You must install and run the online diagnostics to have EMS notify you about disk errors in syslog. EMS does not monitor the mirror maps, only physical drives. So you must look for disk errors in syslog, then check vgdisplay for specifics.

[Devender Khatana]

Hi,

You can check LVM level mirroring of all the lvols in the VG by

#lvdisplay -v /dev/vgname/lvol* |grep stale

The stale extents means they are on not upto date. Also if you have errors in syslog for a particular drive failure you should replace it.

Also note that PE's on a failed drive are not marked stale until kernel tries to write them.


HTH,
Devender

[Naveej.K.A]

The EMS logs for each PVs will be logged in /var/opt/resmon/log/event.log

Regards,
--Naveej

[HGN]

Hi

To check if the mirror is syncd or broken you can do a

# vgdisplay -v /dev/vg00

LV Name /dev/vg00/lvol11
LV Status available/syncd
LV Size (Mbytes) xxxx
Current LE xx
Allocated PE xx
Used PV 1

This shows that the mirror is syncd.

Rgds

HGN