topic Re: Creating new mount points in Operating System - HP-UX

Creating new mount points

Randy Durden — Thu, 02 Apr 2009 11:36:44 GMT

I have created a new volume on a NetApps systems and created the new volume group on my HP 11.11 machine. How do I determine what physical volume to use with the volume group.
There are other volume groups with physical volumes point to the NetApps machine.
Any help would be deeply appreciated.

Re: Creating new mount points

Robert-Jan Goossens_1 — Thu, 02 Apr 2009 12:08:58 GMT

Hi Randy,

Try

# ioscan -fnkCdisk

and

# ioscan -fnCdisk

If you have presented a new lun to the system, you should see the new lun in the last command.

Regards,
Robert-Jan

Re: Creating new mount points

Randy Durden — Thu, 02 Apr 2009 12:11:54 GMT

I ran

ioscan -fnCdisk

How will I know which one is the new one?

It has come up with quite a few NETAPP LUN entries

Re: Creating new mount points

Robert-Jan Goossens_1 — Thu, 02 Apr 2009 12:16:24 GMT

could you attach the output?

--
There are other volume groups with physical volumes point to the NetApps machine.
--
Do you use raw disks in any databases, or are all your disk configured in volume groups?

# vgdisplay -v

Regards,
Robert-Jan

Re: Creating new mount points

sujit kumar singh — Thu, 02 Apr 2009 12:25:41 GMT

Hi Randy,

Also please attach the strings /etc/lvmtab and the ioscan -fnCdisk.

Also you can do the following and attach the same.

#for i in /etc/lvmconf/*.conf
>do
>echo $i;vgcfgrestore -l -f $i
>done

This would show something like this.

# for i in /etc/lvmconf/*.conf
> do
> echo $i;vgcfgrestore -l -f $i
> done
/etc/lvmconf/vg00.conf
Volume Group Configuration information in "/etc/lvmconf/vg00.conf"
VG Name /dev/vg00
---- Physical volumes : 1 ----
/dev/rdisk/disk5_p2 (Bootable)
#

Please attach the O/p, that shall be also helpful.

Regards
sujit

Re: Creating new mount points

Randy Durden — Thu, 02 Apr 2009 12:45:49 GMT

I'm working on getting the output.

Having a little trouble getting the file off the system.

Re: Creating new mount points

Randy Durden — Thu, 02 Apr 2009 13:04:23 GMT

Sorry, but unable to get you the outputs.

It looks like all are volume group, no raw disk.

Re: Creating new mount points

Randy Durden — Thu, 02 Apr 2009 13:26:26 GMT

Below are a few entries from the ioscan -fnCdisk command.

disk 587 1/0/4/0/0.2.11.0.1.7.1 sdisk CLAIMED DEVICE NETAPP LUN
/dev/dsk/c46t7d1 /dev/rdsk/c46t7d1

disk 558 1/0/4/0/0.2.11.0.1.9.1 sdisk CLAIMED DEVICE NETAPP LUN
/dev/dsk/c46t9d1 /dev/rdsk/c46t9d1

these are the last 2 entries.

I don't if this helps or not.

Re: Creating new mount points

Randy Durden — Thu, 02 Apr 2009 15:54:06 GMT

I have found the physical volumes. Now when I do a
vgcreate /dev/vg*** /dev/dsk/c##t#d#

I get
IO error on Physical Volume device.

Re: Creating new mount points

Patrick Wallek — Thu, 02 Apr 2009 15:55:34 GMT

Have you done a 'pvcreate' on the devices?

Re: Creating new mount points

Randy Durden — Thu, 02 Apr 2009 16:03:12 GMT

I'm showing 4 physical volumes associated with my LUN.
Do I need to do a pvcreate on all of them?

Re: Creating new mount points

Avinash20 — Thu, 02 Apr 2009 18:56:07 GMT

If you are having those an an alternate path, then you could perform pvcreate on only one path.

If not an alternate path, do pvcreate for all the PV's

Basically the controller will change if you view in the ioscan output

cxtydz
catydz

Here dz is the disk which is referred by two contollers(cx and ca).. Both refer to the same disk.

The best way is to finr out from the Storage software which you are using

Re: Creating new mount points

avizen9 — Fri, 03 Apr 2009 05:52:08 GMT

Hello randy,

you try
can you do quick look with SAM
do you remember your lun size ?

open SAM > disk & file system > Disk Devices >

if you still not created any Pv with this lun it should show as unused. but you need to compare hardware path to make sure which lun belongs to which HDD in your hpux server.

Re: Creating new mount points

Randy Durden — Fri, 03 Apr 2009 14:14:54 GMT

Completed. Thanks