HP Serveur lame HP ProLiant BL465c Gen8 - Manual (Page 119)

The pair status checking retry interval should be 1.5 times the estimated pair operation time in a
backup system configuration. By default, Application Agent checks the pair status every 10 seconds,
up to 3600 times. This default setting assumes that a backup or restoration will finish in 10 hours (10
seconds * 3600 = 600 minutes). If backup or restoration does not finish within 10 hours (because,
for example, a volume is constantly being updated) the backup or restoration command will result in
a timeout error. To prevent this, you must change the default setting.
Table 25 Parameters in the RAID Manager-linkage definition file (DEFAULT.dat) (to specify the retry
count and retry interval for checking the status of a pair)
Specifiable values
(default)
Description Parameter
0 to 3600
(3600
#
)
In this parameter, specify the maximum retry count for
checking the status of a pair. If you specify 0, Applica-
tion Agent continues to retry checking until it can check
the status.
RETRY_TIME
0 to 3600
(10
#
)
In this parameter, specify the same number of seconds
as the retry interval for checking the status of a pair.
RETRY_WAIT
#
If RETRY_TIME or RETRY_WAIT is not specified in the RAID Manager-linkage definition file
( DEFAULT.dat ), the RETRY_TIME parameter is set to 120 and the RETRY_WAIT parameter is
set to 5.
The smaller the value of the RETRY_WAIT parameter, the larger the CPU load. When changing the
RETRY_WAIT value, you must consider a number of conditions, including the storage system to be
used, the number of disks to be backed up or restored, the disk sizes, and the difference in data
amounts between the primary and secondary volumes. See the following table to set the appropriate
value:
Table 26 Values in the RETRY_WAIT parameter set for each storage system
Recommended value
(Units: seconds)
Description Storage system
1
For a pair status to change, a wait time of at
least one second is needed.
HP P9500
HP XP24000
HP XP20000
XP12000/XP10000/SVS200
XP1024/XP128 series
Depending on the purpose of the processing, you can set the retry count and retry interval for checking
the pair status. If you want to set the retry count and retry interval for a specific purpose, add the
appropriate parameter in the RAID Manager-linkage definition file (
DEFAULT.dat ). If you do not
Application Agent CLI User Guide 119