HPUX 11.23 and IBM SAN running SDD

[LynnG]

Hello all -

Question, I have an Itanium VPar HPUX 11.23, which is running on IBM SAN using the SDD software for virtual pathing. We are connected to 2 HBAs and each HBA has dual paths for a total of 4 paths (1 primary configured and 3 alternates).

We have recently discovered for whatever reason (there are TBs of disks on this VPar) there are about 20 LUNs to the 2nd HBA that didn't get configured at the SAN (shared to the other card), my question is ...

If I have the SAN team configure in these disks, presented to the secondary HBA will SDD software automagically configure in the c?t?d? numbers under it's respective vpath or will I need to run some sort of configure command to get the vpaths to see these paths.

FYI, I know the HBA itself is good, because I have other paths on that HBA on the server which I can see, it's just 20 paths or so that we never presented to the HBA and were missed along the line.

Look forward to hearing from everyone. thanks in advance

[Yogesh M Puranik · Accepted solution]

Hi,

>>>>If I have the SAN team configure in these disks, presented to the secondary HBA will SDD software automagically configure in the c?t?d? numbers under it's respective vpath or will I need to run some sort of configure command to get the vpaths to see these paths


Yes, after assiging LUNS,you need to run some specific commands to get VPATHS to see,

Check the pasth of you IBMsdd installed drivers,

ususally,it will be present under /opt/IBMsdd/bin/

Your steps will be,

#cd /opt/IBMsdd/bin/

#cfgvpath -r

#insf -e

#ioscan -fnC disk

#showvpath -l (Will show you the past and new vpaths along with dev/dsk/cxdxtx details.


Rgds

Yogesh

[Yogesh M Puranik]

Hi,

If you think,my reply is some what helpful to your question then the please assign points as a courtesy.


Rgds

Yogesh

[Kirby A. Joss]

Yogesh-

I'm back on 11.11, but methinks your order is backwards. I need to do the ioscan first to detect the additional devices/paths, then the insf to build the device special files, and only when those exist will the cfgvpath -r link the new devices/paths to the existing vpath devices.

[LynnG]

So the following should be done

ioscan -fnC disk

insf -e (if necessary, I've noticed sometimes this isn't called for with HP and IBM SAN)

cfgvpath -r

All of this can be done online without impact to the user community, etc. Again running HPUX 11.23 with SDD vesion IBMsdd Driver 64-bit Version: 1.7.1.0. I just need verification of the online compared to reboot. :)

Thanks everyone in advance

[Kirby A. Joss]

Correct, no reboot is necessary on a normal, healthy system.

[LynnG]

Thanks for the info all ... I have submitted points as appropriate. Thanks again.