topic Re: Urgent help - config RHEL(Linux) for EVA5000 in Operating System - Linux

Urgent help - config RHEL(Linux) for EVA5000

yyghp — Wed, 13 Jul 2005 11:43:07 GMT

I have presented 2 LUNs on 2 EVA5000 to serverA, and I have installed QLogic driver and utility on that server.
I can see 4 Drives with Hardware Brower ( GUI ): /dev/sdb, /dev/sdc, /dev/sde, /dev/sdh, but I can't use /opt/hp/hp_fibreutils/lssd to show them, also, I can't use /opt/hp/hp_fibreutils/scsi_info /dev/sdb to show its related LUN, I can only see:
# scsi_info /dev/sdb
SCSI_ID="0,1,1"
MODEL="COMPAQ HSV110 (C)COMPAQ"
FW_REV="3020"

Why? and how can I know which /dev/sdX maps to which LUN ?
Thanks !

Re: Urgent help - config RHEL(Linux) for EVA5000

Ivan Ferreira — Wed, 13 Jul 2005 12:05:53 GMT

I think you can unpresent all the virtual disk, present them one by one and run fdisk and mkfs, and install a label (maybe like the WWID or the VDISK name). If the VDISK have different sizes, the size in fdisk may help you to determine the VDISK that correspond with the special file.

Remember that even when you recognize the special file -> VDISK relationship, you will never know where the data actually is because the EVA distribute the data across all disks.

Re: Urgent help - config RHEL(Linux) for EVA5000

Eric van Dijken — Thu, 14 Jul 2005 00:53:53 GMT

On Tru64 we have a list like:

91: /dev/disk/dsk7c COMPAQ HSV110 (C)COMPAQ IDENTIFIER=2042

This list shows the devicename and the WWID and it would be very nice to have a util that displays the same information on Linux.

But like the original author, i havent found a tool/sollution yet.

Re: Urgent help - config RHEL(Linux) for EVA5000

Uwe Zessin — Thu, 14 Jul 2005 01:00:27 GMT

Sorry, but the list you show does not include the LUN WWID - that is a 128-bit value starting with 6. Identifier=2042 is an entry in a vendor-specific code page. This value is only understood by OpenVMS, Tru64 Unix and the AlphaServer + Integrity server console subsystems.