HP StorageWorks HSG80 Enterprise Modular Storage RAID Array Fibre Channel Solution Software V8.8 for IBM AIX Release Notes (AA-RV1JA-TE, March 2005)
Host Operating System Notes
38 HSG80 Enterprise Modular Storage RAID Array Fibre Channel Solution Software V8.8 for IBM
AIX Release Notes
A Storage System Name Cannot Use a Pipe Character
When adding a storage system, do not use a pipe character (|) in the name.
Differences Between SCSI-2 and SCSI-3 Command Console LUN Usage
There are differences in the way that the CCL is presented to the host in SCSI-2
and SCSI-3 modes on HSG80 controllers.
In SCSI-2 mode, only one CCL is presented as unit
D0. Only hosts that have the
ability to see
D0 will see a CCL. The CCL can be deactivated in SCSI-2 mode.
Caution: If the CCL is enabled in SCSI-2 mode, do NOT create a unit D0 and
leave that unit number reserved, since it will be overwritten by your storage
system.
In SCSI-3 mode, all LUN 0s of real or virtual targets are presented as a CCL. For
example, if a system has no selective storage presentation (or storage zoning),
LUNs
D0 and D100 will be seen by a host as a CCL device.
If you set a host connection on the HSG80 to a
unit_offset other than 0 (using
the
set <connection name> unit_offset=xx command), that numbered LUN
will appear to the host as a CCL.
Therefore, if you have a connection called
HOST1 and the offset of that connection
is set to 20, LUN number
D20 will be seen by the host as a CCL device,
overwriting an existing
D20. Also, CCL devices cannot be disabled in SCSI-3
mode.
Steamd.log on IBM AIX V5.1
The steamd.log file in the /var/adm/ras directory may rotate without warning.
This only applies when the SWCC Agent is installed. In these instances, AIX
creates a new
steamd.log file without warning, while saving the old steamd.log
under a file name similar to the following:
steamd.log.2001Nov28:13:25:43
This log file name is consistent with the one that is regularly rotated at the time
interval specified in the
/etc/syslog.conf file. The problem is that no time
interval is specified in
steamd.log configuration in the /etc/syslog.conf file.