Problem mapping LUN disk from VIOS to the LPAR Post: 302306013

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Operating Systems AIX Problem mapping LUN disk from VIOS to the LPAR Post 302306013 by solaix14 on Friday 10th of April 2009 11:56:05 AM

04-10-2009

Registered User

Problem mapping LUN disk from VIOS to the LPAR

Hello guys,
It would be so nice of you if someone can provide me with these informations.
1) My SAN group assigned 51G of LUN space to the VIO server.I ran cfgdev to discover the newly added LUN. Unfortunately most of the disks that are in VIO server is 51G. How would I know which is the newly added 51G?
SAN team gave me some information like: Host Lun# 86 and symmetric disk ID# 750.
How can I use these information in the VIO to pin-point to the right LUN.

2) I tried to map the LUN to the LPAR (pure guessing of the disk#), using
mkdev -vdev hdiskxx -vadapter vhostx
All I got as an output is:
"0514-070: Only disks that support multi-path I/O or which have a PVID may be used as a virtual target device"
and yes when I did lspv -free on VIO server the disk I thought is the one didn't have PVID number assigned to it.

Any help will be highly appreciated..
thank you.

solaix14

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LEARN ABOUT DEBIAN

sg_rdac

SG_RDAC(8)							     SG3_UTILS								SG_RDAC(8)

NAME

       sg_rdac - Display or Modify RDAC Redundant Controller Page

SYNOPSIS

       sg_rdac [-a] [-f=LUN] [-v] [-V] DEVICE

DESCRIPTION

       sg_rdac	displays  or modifies the RDAC controller settings via the Redundant Controller Page (0x2C). When modifying the settings it allows
       to transfer the ownership of individual drives to the controller the command was received on.

OPTIONS

       -a     Transfer all (visible) devices

       -f=LUN Transfer the device identified by LUN. This command will only work if the controller supports 'Dual Active Mode' (aka  active/active
	      mode).

       -v     be verbose

       -V     print version string then exit

EXIT STATUS

       The exit status of sg_rdac is 0 when it is successful. Otherwise see the sg3_utils(8) man page.

AUTHOR

       Written by Hannes Reinecke <hare at suse dot com>, based on sg_emc_trespass.

REPORTING BUGS

       Report bugs to <dgilbert at interlog dot com>.

COPYRIGHT

       Copyright (C) 2006-2007 Hannes Reinecke, Douglas Gilbert.
       This  software  is distributed under the GPL version 2. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PUR-
       POSE.

sg3_utils-1.23							   January 2007 							SG_RDAC(8)

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