SDD SDDPCM MPIO lspath Jargon


 
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Operating Systems AIX SDD SDDPCM MPIO lspath Jargon
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Old 05-02-2009
SDD SDDPCM MPIO lspath Jargon

Can anyone recommend me some reading material surrounding how AIX handles LUNs:
- with and without MPIO installed
- with and without SDD or SDDPCM installed
Where does lspath sit in all of this (MPIO layer?). Can a system be built with just MPIO software? Is MPIO software even needed?

I guess I am trying to conceptualize what is seen on a system before and after you install the above software.
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RESCAN-SCSI-BUS.SH(8)					      System Manager's Manual					     RESCAN-SCSI-BUS.SH(8)

NAME
rescan-scsi-bus.sh - rescan the SCSI bus. SYNOPSIS
rescan-scsi-bus.sh [ -l ] [ -w ] [ -c ] [ -r ] [ host... ] DESCRIPTION
rescan-scsi-bus.sh is a program that is used to rescan the SCSI bus using the SCSI add-single-device feature of the Linux SCSI layer. OPTIONS
-l Activates scanning for LUNs 0 .. 7 (default: 0). -L NUM Activates scanning for LUNs 0 .. LUN (default: 0). --luns=LIST Scan only LUNs in LIST. -w Enables scanning for device IDs 0 .. 15 (default: 0 .. 7). --ids=LIST Scan only device IDs in LIST. -i, --issue-lip Issue a FibreChannel LIP reset (default: disabled). -r, --remove Enables removing of devices (default: disabled). --forceremove Remove and readd every device (dangerous). -c Enables scanning of channels 0 1 (default: 0). --channels=LIST Scan only channels in LIST. host, --hosts=LIST If host adapters are given, only these are scanned (default: all). --nooptscan Don't stop looking for LUNs if 0 is not found. --color Use coloured prefixes OLD/NEW/DEL. LIST is a comma separated list of single values and ranges (no spaces allowed), e.g. 0,2-3,8,10-15. AUTHOR
rescan-scsi-bus.sh was written by Kurt Garloff <garloff@suse.de>. COPYRIGHT
This program is free software. You can use it under the terms of the GNU GPL (General Public License) Version 2 (or any later version, at your option). Note, that the GNU GPL implies, that there is NO WARRANTY at all. Full text of the GPL can be found in /usr/share/common- licenses/GPL file. AVAILABILITY
rescan-scsi-bus.sh is available from http://www.garloff.de/kurt/linux/scsidev/ March 1998 RESCAN-SCSI-BUS.SH(8)