VIO - moving disk between hosts

[aixTim]

Hi,

I'm looking to move 2 Virtual SCSI disks mapped as LVs, 1 from each of my 2 VIO servers, to a new host.
If I remove the virtual target device mappings from host1:

rmvdev -vtd vtemp1

and then map them to the new host2 (vhost2):

mkvdev -vdev temp1 -vadapter vhost2 -dev vtemp1

Repeat for the second VIO server,then run cfgmgr on host2 I should see the disks or am I missing something?

 

[khalidaaa]

You have to change the lpar's profile to make this work!

Please refer to this link for more info:

http://www.ibm.com/developerworks/aix/library/au-aix-vioserver-v2/index.html

Regards,
Khalid

 

[p5wizard]

If the VIO-client already has the vscsi adapters configured and they show "Available" in lsdev, then there's no change necessary on the HMCs. So the HMC doen't come into play, Khalid.

AixTim, you should be allright:

rmdev the device on the VIO-client that has the disk now
(rmdev -dl hdiskX)

rmdev the vtscsi device on both VIO servers
(rmdev -dev vtscsiY)

mkdev the vtscsi device on both servers for the new vhost - the one mapped to a vscsi adapter on the target VIO-client
(mkdev -vdev lvZZ -vadapter vhostN -dev vtWhatever)

cfgmgr on the target VIO-client
(cfgmgr)



HTH,

p5wizard

 

[hfaix]

It looks OK to me....however I suppose it depends on your objective. Are you just trying to get more space on the new target?

 

[aixTim]

Thanks p5, both clients have other vSCSI disks which are not moving so it is just a change in mapping.

Shame there is no chvdev ;-)

 

[aixTim]

hfaix, It is a tidy-up exercise to get back to an original config, this disk having been borrowed and now no longer required.

 

[khalidaaa]

OMG

I just read the question again! Thanks p5 for your comment

The link i just posted is nice if you want to review the steps! But i guess p5 clarified it already

Regards,
Khalid

 

[p5wizard]

Shame there is no chvdev

There is a force option (-f) on mkvdev which will reuse the backend LV or hdisk, but I don't use that option, as it is way too dangerous for my error-prone typing abilities.


HTH,

p5wizard