Originally posted by: SystemAdmin

Issue with Hitachi HDLM and VIO Server.

We have configured a number of LUNS from our Hitachi Thunder 9570 SAN onto the VIO Server and we can see the following output from lsdev -

dlmadrv Available HDLM Alert Driver
dlmfdrv0 Available HDLM Driver
dlmfdrv1 Available HDLM Driver
dlmfdrv2 Available HDLM Driver
dlmfdrv3 Available HDLM Driver

If I try and run the command "mkvdev -vdev dlmfdrv0 -vadapter vhost1" I get the following response -

Some error messages may contain invalid information
for the Virtual I/O Server environment.

Method error (/usr/lib/methods/cfg_vt_scdisk):
0514-070 Only disks that support multi-path I/O (MPIO) or which
have a physical volume identifier (PVID) or an IEEE volume name may be
used as a virtual target device.

VIO Server is at oslevel -

$ ioslevel
1.2.1.0

Hitachi Support
Hitachi.aix.support.rte 5.0.0.1 COMMITTED AIX Support for Hitachi Disk
Any help appreciated.

Thanks.
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Originally posted by: SystemAdmin

Create an hdisk and/or a logical volume before you run the mkvdev command as it only supports hdisk and logical volumes.
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Originally posted by: Jas32

Ensure you have a pvid on the disks.
We use EMC powerpath and it does work with the hdiskpower0 as the disk, similar to the dlmfdrvX
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Originally posted by: SystemAdmin

Thanks I had assumed that I would probably be able to create an lvol with the disk and then pass that out but this seems like an extra step. The documentation that came with HDLM specifies the mkvdev command using the hdlm device id so I was assuming that this should work.

Is it possible to create a PVID ?
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Originally posted by: Jas32

You can try -
chdev -l XXXXX -a pv=yes
XXXXX = disk name.
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Originally posted by: SystemAdmin

Excellent - Well done people.

Ran an lspv and you can see that the PVID's are missing so that chdev command sorted it out and the mkvdev command works.

Cheers.
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