topic Re: How to view the allocated lun in linux in Operating System - Linux

How to view the allocated lun in linux

senthil_kumar_1 — Thu, 28 May 2009 13:08:28 GMT

Hi

I am using Suse 9 Enterprise linux. qlogic card is connected.

Now a LUN has been assigned to the this server.

I used following command to view the new lun.
But i am not able to see the new LUN.

Ex:
1) fdisk -l
2) lsscsi

What is the command is used to view the newly allocated LUN with out restarting the linux server.

or can we see the newly allocated LUN defenitely after rebooting the linux server?

Re: How to view the allocated lun in linux

Ivan Ferreira — Thu, 28 May 2009 13:17:04 GMT

Please see this thread:

http://forums11.itrc.hp.com/service/forums/questionanswer.do?threadId=1060267

Re: How to view the allocated lun in linux

Suraj K Sankari — Fri, 29 May 2009 06:29:06 GMT

Hi,

run this command "hp_rescan"

Suraj

Re: How to view the allocated lun in linux

avizen9 — Fri, 29 May 2009 07:10:41 GMT

Hello Senthil,

you should run hp_rescan to first see the luns.

then can use fdisk or parted command to creaet new partition as per requirement, thanks,

Re: How to view the allocated lun in linux

senthil_kumar_1 — Fri, 29 May 2009 10:39:54 GMT

Hi Friends,

Thanks a lot,

Now i am able to see the availabel LUN using the command "hp_rescan".

is this command "hp_rescan" installed by default with suse and redhat?

if not, how to install this in suse and redhat linux.?

Re: How to view the allocated lun in linux

Ivan Ferreira — Fri, 29 May 2009 11:41:09 GMT

No, the command is part of the fibreutils package provided by HP with the Proliant Support Pack. You can download the package from the HP site.

Re: How to view the allocated lun in linux

senthil_kumar_1 — Fri, 29 May 2009 16:58:54 GMT

Hi Ivan Ferreira,

Before i did not worked in hp servers.

do we need to install "Proliant support pack" after installing the linux?

is this "proliant support pack" is used to setup HBA card?

we are using qlogic card.

can this "proliant support pack" be used to setup any HBA card other than qlogic?

is qlogic hp product?

Re: How to view the allocated lun in linux

Ivan Ferreira — Fri, 29 May 2009 18:24:47 GMT

>> do we need to install "Proliant support pack" after installing the linux?

It's recommended

>>> is this "proliant support pack" is used to setup HBA card?

Yes, it contains drivers/modules for HBA's

>>> we are using qlogic card.

Normally, the HP provided HBA's are qlogic cards with different part numers

>>> can this "proliant support pack" be used to setup any HBA card other than qlogic?

Not sure

>>> is qlogic hp product?

HP provides QLOGIC HBAs with different part numbers.

Re: How to view the allocated lun in linux

senthil_kumar_1 — Sat, 30 May 2009 12:13:40 GMT

Hi Ivan Ferreira,

>>> is qlogic hp product?

HP provides QLOGIC HBAs with different part numbers.

Pls explain me about different part numbers.

Re: How to view the allocated lun in linux

Stephen_126 — Mon, 01 Jun 2009 10:15:13 GMT

MUST - Install the latest PSP -MUST.

Your commands then of interest for SAN disks are:

hp_rescan - covered above
lssd [ -l ] (or is it -v ?)
lssg [ -l ] (same.. -v)
maybe you should use #yast2 for LSM/ext3 config.

other:
lsscsi - creates dev files (rescan does this too)
blkid - shows disk UUIDs

Re: How to view the allocated lun in linux

Sivakumar MJ._1 — Tue, 02 Jun 2009 04:58:49 GMT

>>> is qlogic hp product?

HP provides QLOGIC HBAs with different part numbers.

Senthil,

check these links..

http://www.qlogic.com/Products/SAN_products_fibreHBA.aspx

http://support.qlogic.com/support/serial_number_location.asp

Re: How to view the allocated lun in linux

senthil_kumar_1 — Wed, 03 Jun 2009 13:47:23 GMT

Hi All

Can we use the following file if we did not install the hp fiber utils package?

http://www.garloff.de/kurt/linux/rescan-scsi-bus.sh

does this cause any threat?

Pls advice me.