topic Re: need info reg "IRVOLUME" in Operating System - HP-UX

need info reg "IRVOLUME"

Jayraj — Sun, 10 May 2009 12:22:23 GMT

Hi all...
when I do ioscan a server I found some thing like "IRVOLUME".

0/4/1/0.0.0.4.0 1 LVM vg00 70007 HP DG072A8B54

0/4/1/0.0.0.6.0 1 LVM vg00 69878 HP IR Volume

I have to do mirror some lvs and have to extend some file systems on vg00, But I dont have enough space available for this. So I need to add the disks and proceed. What kind of disks I need to add and is there any special method of mirroring and file system expansion for this IRVOLUME..

Re: need info reg "IRVOLUME"

Michal Kapalka (mikap) — Sun, 10 May 2009 12:35:10 GMT

Hi,

check this link.

mikap

Re: need info reg "IRVOLUME"

smatador — Sun, 10 May 2009 15:12:07 GMT

Hi
I suggest you this two thread
http://forums11.itrc.hp.com/service/forums/questionanswer.do?threadId=1325202
http://forums11.itrc.hp.com/service/forums/questionanswer.do?threadId=1235129
Depend of the number of disk in the volume and in the sas controler you have, you should be able to add a disk and reconfigure with sasmgr utility.
Hope it helps

Re: need info reg "IRVOLUME"

Michal Kapalka (mikap) — Sun, 10 May 2009 18:30:35 GMT

hi,

sorry i forgot to add the link :

http://forums11.itrc.hp.com/service/forums/questionanswer.do?threadId=1199652

mikap

Re: need info reg "IRVOLUME"

Torsten. — Mon, 11 May 2009 02:29:33 GMT

The "IR Volume" means "Integrated RAID Volume", so this is a hardware mirror under control of the built-in SAS controller.

You probably have a rx2660/rx3600/rx6600 server.

Use "ioscan" to find the controller device "e.g. /dev/sasd0) and run this command to check:

# sasmgr get_info -D /dev/sasd0 -q raid

So there is no need to do a LVM mirroring on this device.

Re: need info reg "IRVOLUME"

Kranti Mahmud — Mon, 11 May 2009 04:47:05 GMT

Hi Swaraj,

Integrated RAID has the following benefits and features:
â ¢ Support for up to ten disks per IME or IS volume, with one or two storage volumes per SAS controller. Each controller can support up to 12 volume disks, plus one or two hot spare disks, for a maximum of 14 disks per controller. (Support for this number of disks requires Integrated RAID firmware v1.20.00 or above.)
â ¢ Support for two-disk IM mirrored volumes
â ¢ Low cost RAID volume creation meets the needs of most internal

RAID installations
â ¢ Easy to use - installation and configuration are not complex
â ¢ System can boot from an IM, IME, or IS volume
â ¢ No special OS-specific software required
â ¢ High reliability and data integrity
â Nonvolatile write journaling
â Physical disks not visible to OS or to application software
â ¢ Low host CPU and PCI bus utilization
â ¢ Fusion-MPT architecture provides processing power
â Shared memory architecture minimizes external memory requests
â Functionality is contained in device hardware and firmware

For more info, check the below link: http://209.85.229.132/search?q=cache:4ZmXXn08XJAJ:www.lsi.com/DistributionSystem/AssetDocument/documentation/storage/hbas/sas/IR-SAS_UserGuide.pdf+Integrated+RAID+volume%27&cd=2&hl=en&ct=clnk&gl=bd#14

Rgds-Kranti

Re: need info reg "IRVOLUME"

Suraj K Sankari — Mon, 11 May 2009 08:10:16 GMT

Hi,
>> have to do mirror some lvs and have to extend some file systems on vg00, But I dont have enough space available for this.

Which are the lvs you need to extend ?

you can add disk into vg00 by vgextend command

Suraj

Re: need info reg "IRVOLUME"

Jayraj — Fri, 15 May 2009 04:38:25 GMT

Hi all,

Thank you for your resposce, Now I have got the Idea about IR volume.

Thanks alot...