08-05-2010
Cannot see the IBM SAN storage
HI all,
I had recently change the Server storage from EMC to the IBM SAN.
but after the configuration, the IBM success to see the server HBA port and successfully assign a LUN for the server.
When i go to the server, and restarted it. i use the "format" command to check, but din see any IBM SAN.
is it anyway i still need to configure in my server?
kindly advise =)
Thanks
---------- Post updated at 12:02 PM ---------- Previous update was at 11:21 AM ----------
i think the following step, solve my problem
devfsadm -Cv
Quote:
Originally Posted by
kingston
In my case, i have a IBM ESS Shark 800 storage and have multi os clients solaris 5.8 and 5.10 and RHEL 5. There is host attached with the storage and it has a graphical utility to create lun after adding new hard disks. Once the lun is created then i need to assign the lun to the host which has the WWPN ( not WWNN ) ip address, hostname. Then from solaris if i gave "devfsadm -Cv" i could see the lun.
This is what the procedure i follow in my site. It will vary with respect to the vendor. But i hope i may give a idea about assigning a lun to the client.
How configure SAN to server?
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mpioutil(1) BSD General Commands Manual mpioutil(1)
NAME
mpioutil -- Tool for configuring paths to multipathed logical units.
SYNOPSIS
mpioutil verb direct-object arguments
DESCRIPTION
mpioutil is a utility to manage multiple paths to a SCSI Logical Unit.
VERBS, DIRECT OBJECTS, AND SPECIFIC ARGUMENTS
list
Lists all multipathed logical units.
info -i <lun identifier>
Get information on a multipathed logical unit. The -i flag may also be expressed as --id.
modify lun -i <lun identifier> -a <load balancing algorithm> -b <round robin batch count>
Modify a logical unit. The -i, -a, -b flags may also be expressed as --id, --algorithm, and --batchCount respectively.
modify path -l <lun identifier> -i <path identifier> -e | -d
Modify a path on a logical unit. The -l, -i, -e, and -d flags may also be expressed as --lun, --id, --enable, and --disable respec-
tively.
EXAMPLES
mpioutil list
Lists all multipathed logical units.
mpioutil info --id 22F2000155A508ED
Get information for a multipathed lun with id 22F2000155A508ED.
mpioutil modify lun --id 22F2000155A508ED --algorithm RoundRobin --batchCount 16
Modify a multipathed lun's algorithm to be RoundRobin with a batch count of 16.
mpioutil modify lun --id 22F2000155A508ED --algorithm LeastIO
Modify a multipathed lun's algorithm to be LeastIO.
mpioutil modify path --lun 22F2000155A508ED --id 26010001553560BF00000001 --disable
Disable a path that belongs to a multipathed logical unit.
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