[enyamada]

Hi

I´m new to the LPARs world. Sorry if this is a silly question.


I´m trying to make a LPAR (AIX 5.3) see a HP EVA8100 storage.
Without MPIO, everything works fine. Using MPIO, even strictly following
the documentation (that is very simple and straightforward),
when I try to varyonvg I got an error like this:


{root@sbetb2605}/opt/hphsv/bin> importvg -y vg1 hdisk7
0516-024 lqueryvg: Unable to open physical volume.
Either PV was not configured or could not be opened. Run
diagnostics.
0516-024 lqueryvg: Unable to open physical volume.
Either PV was not configured or could not be opened. Run
diagnostics.
0516-1140 importvg: Unable to read the volume group descriptor area
on specified physical volume.


I´ve already asked at HP forums but I got no good enough answer.


The server is a p550 with 2 dual FC adapters (FC5759). I got 2 LPARs.
I´m not using VIO and, as far as I can see, each LPAR is using
one of the FC5759:


lpar2:
{root@sbetb2606}/> lsdev -C -c adapter|grep fcs
fcs0 Available 05-08 FC Adapter
fcs1 Available 05-09 FC Adapter

lpar1:
{root@sbetb2605}/> lsdev -C -c adapter|grep fcs
fcs0 Defined 05-08 FC Adapter
fcs1 Defined 05-09 FC Adapter
fcs2 Available 07-08 FC Adapter
fcs3 Available 07-09 FC Adapter

My question is: is there some LPAR detail I should pay attention in
order to make MPIO work?

Is normal one of the LPARs see (even as "defined" only) all the 4 FC adapters?

Thank you very much.

Edson

[fredric]

Hi,

I assume that you have created 2 lpars and you want to create new vg's with disks from the HP EVA8100 storage. I also assume that the EVA8100 is part of a SAN. Have you mapped the shared disk to all hba (wwn) and done you zooning?

If you don't have IVM installed (GUI), you must login to the VIO server and troubleshoot.

Do you see any disks at all from the VIO server?
> lspv # You should see all internal (rootvg) disks and hopefully the EVA8100 disks.
If not, try execute cfgdev or reboot the VIOS to probe for new devices.

If you see the disks, you should be able to create the vg/lv.
> mkvg [-f] [-vg VolumeGroup] PhysicalVolume ...

# Dedicate the vg to a lpar(vhost)
> lsmap -all (to see what is mapped. vhost0 is the first lpar)
For example:
> mkvdev -vdev vg_eva8100 -vadapter vhost1 -dev v_vg_eva8100


I have posted a thread about problem to share a disk between two lpar (on different hw). I planing to setup a HACMP (cluster) between the lpars.

Good Luck!

//Fredric

[enyamada]

Hi,

No, I´m not using a VIO server. From each LPAR I can see all the disks,
as long as I dont use MPIO.

Thanks

[babylonrocker]

first , is not normal that you see 2 of 4 fc adapters defined , remove all with the option
rmdev -Rdl fcs*
control that you have the correct device driver for manage the disk box , then cfgmgr
if now you see the hdisk , is possible that you have a something strange on disk like another lvm or boot records ...
try with chpv -c hdisk* and if is not enough
chpv -C hdisk* ... then retry your command of importvg

[enyamada]

Hi. The problem was solved by applying the latest AIX service pack available (although HP docs say that the original update was enough and supported).

Thank you all.