topic Re: New disks added to EMC not seen in HPUX in Operating System - HP-UX

New disks added to EMC not seen in HPUX

Craig A. Sharp — Tue, 28 Feb 2006 09:27:11 GMT

We have added a set of disks to our EMC Symmetrix. The Symm is connected FC. We are not able to to see the additional space on our Dome until we reboot.
Is there anything we can do to be able to see the new space without the reboot?

Thanks,

Craig

Re: New disks added to EMC not seen in HPUX

Peter Godron — Tue, 28 Feb 2006 09:31:06 GMT

Craig,
please see thread:
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=1003871
Same problem, some suggestion, but no solution marked.

Re: New disks added to EMC not seen in HPUX

Don Wilt — Tue, 28 Feb 2006 09:32:36 GMT

Craig,
If you already have EMC disk on the hardware path, try the following commands:
ioscan -u -H /x/x/x/x.x - this will find usable devices on that path
insf -e -H /x/x/x/x.x - install special files, it will tell you if any special files were added.
You should then be able to see the new disks.

Re: New disks added to EMC not seen in HPUX

AshishJain_USA — Tue, 28 Feb 2006 10:26:01 GMT

A system reboot doesn't do anything special that can't be done online.

Just do an "ioscan" and "insf -e"

However, you may also need to run EMC specific command utilities beofre this ( commands like "xpinfo -a" on an XP Storage )

rgds....Ashish

Re: New disks added to EMC not seen in HPUX

Craig A. Sharp — Tue, 28 Feb 2006 10:32:53 GMT

One issue we had was that the ioscan does not give us the hardware path (/x/x/xâ ¦). We can only use this command in general without specify any device.

Re: New disks added to EMC not seen in HPUX

Geoff Wild — Tue, 28 Feb 2006 10:36:59 GMT

I usually do:

ioscan -fnC disk
insf -eC disk

You may also need to issue a syminq

Rgds...Geoff

Re: New disks added to EMC not seen in HPUX

Rita C Workman — Tue, 28 Feb 2006 10:42:14 GMT

Let me throw this one thing out there...I shall presume that your 'add' means you lunmasked some disk to a host.

..like others have said, run your ioscan and insf -e on HPUX. You might also run:
symcfg discover

and give it a couple minutes. I've noticed thru the years that EMC does not always wake up and present things, as fast as the UNIX box. So get a cup of coffee and run the commands again...depending on how many were added, it might take a couple minutes.

Just a thought,
Rita

Re: New disks added to EMC not seen in HPUX

f. halili — Tue, 28 Feb 2006 11:02:41 GMT

These must be done before you can see your ctd's.

# ioscan -fnC disk
# insf -eC disk

f. halili

Re: New disks added to EMC not seen in HPUX

Stuart Abramson — Wed, 01 Mar 2006 08:52:36 GMT

Somebody just asked this the other day.

Do you have "Solutions Enabler" or PowerPath installed on this system (If you don't have PowerPath you SHOULD.)

Do this:

symcfg discover
symmask refresh
ioscan -Cdisk
insf -eCdisk
symcfg discover
syminq
powermt restore
powermt check
powermt config
powermt save
powermt display paths

Re: New disks added to EMC not seen in HPUX

Craig A. Sharp — Tue, 28 Mar 2006 14:13:11 GMT

We still dont know why this is happening. Both HP and EMX are stumped. We rebooted and there they were...go figure

Thanks for all the replies. Great info!