topic Re: Storage in Operating System - HP-UX

Storage

Ali Imran Abbas — Fri, 11 Jan 2008 21:12:14 GMT

I am new to hpux and I have a question about SAN. How can you add storage to your exisiting hpux servers. We are running EMC Symmetrix and HP UX version is 11i.

Can Any one give me the detail step by step proceedure to add SAN storage to ur hpux server?

Re: Storage

Hasan Atasoy — Fri, 11 Jan 2008 21:22:29 GMT

hi ali imran;

it is a bit complecated if you are using an emc storage.. but roughly;

1. create your lun from metaluns on emc side.
2. map it to an fa port on emc side.
3. mask it to your server.
4. on hp-ux "ioscan -fnC disk"
5. insf
you will see it on the device list.

Hasan

Re: Storage

Ali Imran Abbas — Fri, 11 Jan 2008 21:31:46 GMT

I can see them on my system as /dev/rdsk/c#t#d#.
Now I wanna add them to the existing volume groups. Can you also please tell me the steps to add them to the vg.
Here are what I have in my mind.
Create physical volume on each disk and then add them to the vg by extending the volume group.
Do I use the insf command as well provided I can see them when I issue ioscan -fnC disk command on my system?

Re: Storage

KapilRaj — Fri, 11 Jan 2008 21:41:30 GMT

I guess you are using LVM,

pvcreate /dev/rdsk/c??t??d??
vgextend /dev/dsk/c??t??d?? .....

Please do a search in the forum before posting questions. These are basic steps and I am sure they have been answered in the past.

Regards,

Kaps

Re: Storage

Ali Imran Abbas — Fri, 11 Jan 2008 21:47:23 GMT

I know how to add a disk but I was wondering if the process is different for a SAN Storage.

Re: Storage

Tim Nelson — Fri, 11 Jan 2008 21:55:52 GMT

Process is no different once the disk is presented to the system.

System does not care if it is DASD or SAN based.

Re: Storage

KapilRaj — Fri, 11 Jan 2008 22:16:07 GMT

If you use powerpath, you may need to configure them into powerpath.

powermt config should do the trick.

Re: Storage

Ali Imran Abbas — Fri, 11 Jan 2008 22:45:06 GMT

Hey Raj,
Can u please tell me a bit more about powerpath and powermt. I explain you my scenario. I have volume groups vgr000--vgr025. Each having 4 PV and maximum PV can be 255 in each VG. LV in each VG are 64 and maximum LV's in each volume group can be 255. PE size is 32 and total PE's in each VG is 4312. LV's are named from lvr000 to lvr1633. Now I have to add more diskspace to this server by making volume groups and logical volumes. Next Volume groups will be vgr026 and so on and LV's will be lvr1634 and so on with each LV size 2112. The rest of the configuration like PE size, PV's in each VG will be 4 and LV will be 64.

Can u please tell me what is the most suitable tool to use here and also give me some detail how to do that.

Thank you very much for your help and support.