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Full Discussion: Any tips to grow iSCSI LUN
Operating Systems AIX Any tips to grow iSCSI LUN Post 302516435 by bbbngowc on Saturday 23rd of April 2011 07:39:09 AM
Old 04-23-2011
Quote:
have you had a look in "errpt"? Is there anything relevant?
Yip. This is the last entry in the error report.

Date/Time: Wed Feb 9 11:54:46 EST 2011
Sequence Number: 15049
Machine Id: 00CDE13F4C00
Node Id: MurphyT
Class: H
Type: TEMP
Resource Name: hdisk3
Resource Class: disk
Resource Type: osdisk
Location:
VPD:
Manufacturer................LEFTHAND
Machine Type and Model......iSCSIDisk
ROS Level and ID............38353030
Serial Number...............00000000
Device Specific.(Z0)........000005323B001022
Device Specific.(Z1)........000000A8

Description
DISK OPERATION ERROR

Probable Causes
MEDIA
DASD DEVICE

User Causes
MEDIA DEFECTIVE

Recommended Actions
FOR REMOVABLE MEDIA, CHANGE MEDIA AND RETRY
PERFORM PROBLEM DETERMINATION PROCEDURES

Failure Causes
MEDIA
DISK DRIVE

Recommended Actions
FOR REMOVABLE MEDIA, CHANGE MEDIA AND RETRY
PERFORM PROBLEM DETERMINATION PROCEDURES

Quote:
- Did you try to let "cfgmgr" run? With which outcome?
Yip. Came back with no errors

Quote:
- Do you use the the LUN directly or over a VIOS? If the second option: have you the same effect as in the LPAR on the VIOS too? If the first option: which drivers do you use to access the disks (SDD, PCMSDD, ??) What are your relevant software releases?
The LUN is used directly. The default iscsi drivers are being used (if that's what you mean).

Quote:
- Sometimes - very rarely - the ODM gets corrupted for no apparent reason. Did you try a "synclvodm" or something such?
I haven't tried it, can synclvodm be executed while the system is active?

Quote:
I hope this helps.
Very much. Thanks!
 

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SHELL-QUOTE(1p) 					User Contributed Perl Documentation					   SHELL-QUOTE(1p)

NAME
shell-quote - quote arguments for safe use, unmodified in a shell command SYNOPSIS
shell-quote [switch]... arg... DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands or files with embedded white space or shell globbing characters safely. Here are a few examples. EXAMPLES
ssh preserving args When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and passes them to "$SHELL -c". This doesn't work as intended: ssh host touch 'hi there' # fails It creates 2 files, hi and there. Instead, do this: cmd=`shell-quote touch 'hi there'` ssh host "$cmd" This gives you just 1 file, hi there. process find output It's not ordinarily possible to process an arbitrary list of files output by find with a shell script. Anything you put in $IFS to split up the output could legitimately be in a file's name. Here's how you can do it using shell-quote: eval set -- `find -type f -print0 | xargs -0 shell-quote --` debug shell scripts shell-quote is better than echo for debugging shell scripts. debug() { [ -z "$debug" ] || shell-quote "debug:" "$@" } With echo you can't tell the difference between "debug 'foo bar'" and "debug foo bar", but with shell-quote you can. save a command for later shell-quote can be used to build up a shell command to run later. Say you want the user to be able to give you switches for a command you're going to run. If you don't want the switches to be re-evaluated by the shell (which is usually a good idea, else there are things the user can't pass through), you can do something like this: user_switches= while [ $# != 0 ] do case x$1 in x--pass-through) [ $# -gt 1 ] || die "need an argument for $1" user_switches="$user_switches "`shell-quote -- "$2"` shift;; # process other switches esac shift done # later eval "shell-quote some-command $user_switches my args" OPTIONS
--debug Turn debugging on. --help Show the usage message and die. --version Show the version number and exit. AVAILABILITY
The code is licensed under the GNU GPL. Check http://www.argon.org/~roderick/ or CPAN for updated versions. AUTHOR
Roderick Schertler <roderick@argon.org> perl v5.8.4 2005-05-03 SHELL-QUOTE(1p)
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