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Operating Systems AIX How to prevent /dev/rmt* re-assignments Post 302180179 by Cesar Delgado on Sunday 30th of March 2008 09:26:02 AM
Old 03-30-2008
Hi

That is not the normal behavior of AIX. Different from Solaris where you have to make a persistent binding of the tape devices, AIX it's supposed to save all information about devices in the ODM DB so in the next reboot it will configure devices still connected based on information of that ODM.

You can use commands in order to review contents of your ODM:

odmget CuAt > /tmp/cuat
odmget CuDep > /tmp/cudep
odmget CuDv > /tmp/cudv
odmget CuDvDr > /tmp/cudvdr
odmget CuVPD > /tmp/cuvpd

is this environment a LPAR ?? if so, adapter where rmt devices are connected (either SCSI or HBA) is a desired or required resource at LPAR configuration ?

Hope this helps
 

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ql-set-cmd-timeout(8)					       System Administration					     ql-set-cmd-timeout(8)

NAME
ql-set-cmd-timeout - set the timeout on the devices connected to the QLogic FC HBA. SYNOPSIS
ql-set-cmd-timeout [OPTIONS] DESCRIPTION
QLogic Linux Set Device Timeout Utility This utility allows you to set the timeout on the devices connected to the QLogic FC HBA. This timeout value applies to the commands sent to the device. This can help when target devices take longer to execute a command, for example under heavy I/O. Setting a longer timeout reduces the chance of the Linux SCSI mid-layer driver aborting the tasks after a timeout. [DEFAULT] Display timeout of devices connected to all HOSTs [HOST] Display timeout of devices connected to HOST [HOST] [TARGET] Display timeout of devices connected to a TARGET on HOST [HOST] [TARGET] [TIMEOUT] To set timeout on devices connected to a TARGET on HOST -h, --help, ? Prints this help message -i, --interactive Use this option to use the menu driven program SEE ALSO
ql-dynamic-tgt-lun-disc(8), ql-lun-state-online(8), ql-hba-snapshot(8) Matthias Schmitz <;matthias@sigxcpu.org> August 2008 ql-set-cmd-timeout(8)
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