Configure New Disk

[Uncle Sam]

Hello Experts

My Server Model :- rp4440
OS = HP-UX 11.23

Our Storage team is assigning new Luns to server & they are provideing just Lun ID & Size.

My question is how i can see that which lun they have assigened to system
I know ioscan & insf but i want to see that specific lun only through lun id.

Thanks
SAM

[Torsten.]

You can calculate the LUN ID from hardware path.

But for each array there are special tools to get such information ... e.g. xpinfo for XP and evainfo for EVA.

[Uncle Sam]

Hi

We are using Hatachi Array.

How I can see Device path through Lun ID.

Thank
SAM

[Michal Kapalka (mikap)]

hi,

we have also hitachi USP-V = XP24000,

if you have xpinfo, you will be able to get this info.

mikap

[Torsten.]

I would try if xpinfo works.

However, many threads about decoding, e.g.

http://forums.itrc.hp.com/service/forums/questionanswer.do?threadId=1317801

[Uncle Sam]

Hi Mike

We are having hitachi AMS200.., I know that we can use xpinfo in XP array, but storage is providing Lun ID only.

in XP we can use xpinfo with CU:LDEV number, Could you suggest any thing like xpinfo for this kind ?

Thanks
SAM

[Uncle Sam]

Hi Torsten

If I can check H/W path than I can also see device path from ioscan -fnH

I don't want to use ioscan, if there are thousand of disks present in system i m gone.

I need how I can check perticuler Lun ID

SAM

[Torsten.]

Consider to ask hitachi for an appropriate tool ...

[Michal Kapalka (mikap)]

hi,

in our company, before me or my colegues,
adding some storage to the server, we always gather all information from system, SysInfo,
and them assinging the lun.

if you dont have any chance to identify the LUN, check ll /dev/dsk*/* for time change,
dmesg, if some disk is added there will be some messages such a :

/4/1/0.97.21.19.0.1.4 sdisk
0/4/1/0.97.21.19.0.1.5 sdisk
0/4/1/0.97.21.19.0.1.6 sdisk
0/4/1/0.97.21.19.0.1.7 sdisk
0/4/1/0.97.21.19.0.2 tgt
0/4/1/0.97.21.19.0.2.0 sdisk
0/4/1/0.97.21.19.0.2.1 sdisk
0/4/1/0.97.21.19.0.2.2 sdisk
.....

the you could check diskinfo and pvdisplay ...

mikap

[Michal Kapalka (mikap)]

hi,


if its possible generate a new device files for all devices, and them call to SAN admins to disable asigned lun, them ioscan -fnC |grep NO_HW ===> the disks ( luns ) will be NO_HW and you can identify it, i know its not the best way to get this info, but better as delete some production data,

if you have the disk again enable ( reasigne LUNS from storage ).

mikap

[Torsten.]

According to the formula:

0/0/12/0/0.1.18.0.0.2.1 sdisk - LUN 17
0/0/12/0/0.1.18.0.0.2.2 sdisk - LUN 18

it's not this hard ...

[Uncle Sam]

Looks Like peoples are not active in ITRC Forums now :(

[Uncle Sam]

@Torsten

If I have H/W path than i can also use

ioscan -fnH H/W path -- this will show Device file

but how do i will come to know that this is the newly created Lun & same Lun id.

MY QUESTION IS SIMPLE.
SAN HAS GIVEN ME LUN ID SAY 004
HOW I CAN CHECK THAT WHAT IS THE C?T?D? of LUN ID 004

Thanks
SAM

[Torsten.]

After ioscan and insf you will see a line let's say

0/0/12/0/0.1.18.0.0.0.4

This is LUN 4.


The cxtydz is below.

[Uncle Sam]

@Torsten

If someone else done ioscan & insf than how I will come know ?

SAM

[Michal Kapalka (mikap)]

hi,

if you use dmesg, the new lun will be there as i write some requests back.

for example :

0/4/1/0.97.21.19.0.1.5 sdisk


mikap

[Torsten.]

No matter who run ioscan and insf.

But if you run ioscan the first time (without insf) you will find the pathes *without* device files! This may indicate your new devices.



However, if SAN teams say your new LUN is 4, simply search for a

...0.0.0.4

path.

[Uncle Sam]

Hi My SAN team Says

Lun Id: 39 Size =100GB
Lun Id 40 Size=100GB

and in ioscan these are H/W path
disk 54 0/4/2/0/4/0.127.35.19.0.0.1
disk 49 0/4/2/0/4/0.127.35.19.0.0.0
disk 50 0/5/2/0/4/0.127.99.19.0.0.0
disk 53 0/5/2/0/4/0.127.99.19.0.0.1

How it is lun id 39 & 40

SAM

[Torsten.]

Please post

# ioscan -fn

[Uncle Sam]

Attached is ioscan -fn

[Torsten.]

There are only 2 hitachi luns, 0 and 1 - dual pathed.