HP XP RAID Manager Software - Manual (Page 92)

92 HP StorageWorks Disk Array XP RAID Manager: User’s Guide
Note This registration process has some risk because it is executed automatically
upon /etc/horcmgr startup to validate the –fd option and is done without
checking for protection mode. The permitted volume registration brings a
performance degradation in horcmstart.sh (RM startup), but the RM
daemon runs as usual, depending on how many devices a host has. If you
want RM to start up faster in non-protection mode, set $HORCMPERM to
SIZE 0 byte
as a dummy file or set HORCMPERM=MGRNOINST. At
that time, the –fd option will show the Device_File name as “Unknown.”
Afterwards, you can validate the –fd option by using raidscan –find inst.
Environment variables
$HORCMPROMOD
This environment variable sets protection mode ON by force. If your
command device was created with protection mode OFF, this parameter
forces protection mode ON, as shown in the table below.
$HORCMPERM
This variable is used to specify the RM permission file. If no file name is
specified, the default is /etc/horcmperm.conf, or /etc/horcmpermn.conf
(where n is the instance number).
• If an RM permission file exists, then /etc/horcmgr executes the
following command to permit the volumes listed in the file.
(HP-UX) cat $HORCMPERM | /HORCM/usr/bin/raidscan –find inst
Original Command
Device Setting HORCMPROMOD Resulting Mode
Protection mode ON No Effect
(already on)
→
Protection mode ON
Protection mode OFF Variable not set
→
Protection mode OFF
Variable set
→
Protection mode ON