topic Re: LUN issue. in Operating System - HP-UX

LUN issue.

fizan — Fri, 04 Dec 2009 12:40:04 GMT

issue is the ignite recovery we have done and the vg's also copied in the /dev but its not getting activated, due to the vg's are from the storage, so i will do

1.delete all the storage vg's inside /dev (files)
2. configure the lun and assign it to the server
3. ioscan the hdd and pvcreate that disk and add in the vg
4.now create the LV with the extended hdd
then newfs and mkdir /test and mount it right.

thanks

Re: LUN issue.

TTr — Fri, 04 Dec 2009 12:49:14 GMT

For #1 do not delete the /dev/vg files. Use vgexport to delete the volume groups.

Re: LUN issue.

sujit kumar singh — Sat, 05 Dec 2009 13:38:04 GMT

Hi

You do not have data in that VG?
if you do not have then this is oK or of the data is not required.

alternatively you can try the following

vgexport /dev/
mkdir /dev/
mknod group c 64 0xYY0000
the major number should be unique
you can set this to a value not matching with
ll /dev/*/group

then vgimport using the map file you have

#vgimport -v -s -m /dev/
Or
#vgimport -v -f /dev/

see man 1m vgimport for more of the options
regards
sujit

Re: LUN issue.

fizan — Sun, 06 Dec 2009 12:57:43 GMT

the HDD in the storage is empty, after mounting it in the server then only need to restore the data by DP. but now after performing the ioscan -funC disk also its not getting detected.

Re: LUN issue.

fizan — Mon, 07 Dec 2009 05:57:18 GMT

# ioscan -funC disk
Class I H/W Path Driver S/W State H/W Type Description
===============================================================================
disk 4 0/0/2/1.0.16 UsbScsiAdaptor CLAIMED DEVICE USB SCSI Stack Adaptor
/dev/deviceFileSystem/Usb/MassStorage/dsk/disk@hp-1008+294=A60020000001
/dev/deviceFileSystem/Usb/MassStorage/rdsk/disk@hp-1008+294=A60020000001
disk 40 0/3/0/0/0/0.0.0 sdisk CLAIMED DEVICE HP LOGICAL VOLUME
/dev/dsk/c0t0d0 /dev/dsk/c0t0d0s2 /dev/rdsk/c0t0d0 /dev/rdsk/c0t0d0s2
/dev/dsk/c0t0d0s1 /dev/dsk/c0t0d0s3 /dev/rdsk/c0t0d0s1 /dev/rdsk/c0t0d0s3# ioscan -funC disk
Class I H/W Path Driver S/W State H/W Type Description
===============================================================================
disk 4 0/0/2/1.0.16 UsbScsiAdaptor CLAIMED DEVICE USB SCSI Stack Adaptor
/dev/deviceFileSystem/Usb/MassStorage/dsk/disk@hp-1008+294=A60020000001
/dev/deviceFileSystem/Usb/MassStorage/rdsk/disk@hp-1008+294=A60020000001
disk 40 0/3/0/0/0/0.0.0 sdisk CLAIMED DEVICE HP LOGICAL VOLUME
/dev/dsk/c0t0d0 /dev/dsk/c0t0d0s2 /dev/rdsk/c0t0d0 /dev/rdsk/c0t0d0s2
/dev/dsk/c0t0d0s1 /dev/dsk/c0t0d0s3 /dev/rdsk/c0t0d0s1 /dev/rdsk/c0t0d0s3

this only shows
UsbScsiAdaptor CLAIMED DEVICE USB SCSI Stack Adaptor whether this is the disk from storage ?

Re: LUN issue.

Torsten. — Mon, 07 Dec 2009 06:00:23 GMT

What kind of "storage" are you looking for?

This is a USB connected CD-ROM in an older version of 11.31:

disk 4 0/0/2/1.0.16 UsbScsiAdaptor CLAIMED DEVICE USB SCSI Stack Adaptor
/dev/deviceFileSystem/Usb/MassStorage/dsk/disk@hp-1008+294=A60020000001
/dev/deviceFileSystem/Usb/MassStorage/rdsk/disk@hp-1008+294=A60020000001

Re: LUN issue.

fizan — Mon, 07 Dec 2009 06:12:21 GMT

the IBM DS3000,

we have installed the iscsi sw in rx2660 and executed the iscsiutil -o -D it shows correct but the disk is not getting detedcted.

# iscsiutil -p -D

Discovery Target Information
----------------------------

Target # 1
-----------
IP Address : 172.16.1.29
iSCSI TCP Port : 3260
iSCSI Portal Group Tag : 1

User Configured:
----------------

Authenticaton Method :
CHAP Method : CHAP_UNI
Initiator CHAP Name :
CHAP Secret :
Header Digest : None,CRC32C (default)
Data Digest : None,CRC32C (default)

Re: LUN issue.

fizan — Tue, 08 Dec 2009 04:46:13 GMT

reeboted the server still it dosent get detected in the ioscan any help would be greatfully appriciated.

Re: LUN issue.

fizan — Tue, 08 Dec 2009 06:26:39 GMT

any ting to be added in the /etc/hosts file like

the destination DAS box ip or the switch ip from which the DAS is getting connected to the server.