Hitachi Universal Storage Platform V Reference Manual page 75

Mode Category
734 Dynamic
Provisioning
741 Dynamic
Provisioning
Hitachi Universal Storage Platform V/VM User and Reference Guide
When exceeding the pool threshold, the SIM is reported as
follows:
Mode 734 = ON: The SIM is reported at the time when
exceeding the pool threshold. If the pool usage rate continues
to exceed the pool threshold, the SIM is repeatedly reported
every eight (8) hours. Once the pool usage rate falls below
the pool threshold, and then exceeds again, the SIM is
reported.
Mode 734 = OFF (default): The SIM is reported at the time
when exceeding the pool threshold. The SIM is not reported
while the pool usage rate continues to exceed the pool
threshold. Once the pool usage rate falls below the pool
threshold and then exceeds again, the SIM is reported.
Note:
1. This option is turned ON to prevent the write I/O operation
from being unavailable due to pool full.
2. If the exceeding pool threshold SIM occurs frequently,
other SIMs may not be reported.
3. Though turning on this option can increase the warning
effect, if measures such as adding a pool fail to be done in
time so that the pool becomes full, MODE 729 can be used
to prevent file systems from being destroyed.
4. Turning on MODE 741 can provide the SIM report to not
only the users but also the service personnel.
The option enables to switch over whether to report the
following SIM for users to the service personnel:
SIM-RC 625000 (DP pool usage rate continues to exceed
the threshold)
Mode 741 = ON: SIM is reported to the service personnel
Mode 741 = OFF (default): SIM is not reported to the service
personnel
Note:
1. This option is set to ON to have SIM for users reported to
the service personnel:
For the system where SNMP and E-mail notification are
not set.
If Storage Navigator is not periodically activated.
2. When MODE 734 is turned OFF, SIM-RC625000 is not
reported; accordingly the SIM is not reported to the service
personnel even though this option is ON.
Functional and Operational Characteristics
Function Default MCU/RCU
OFF –
OFF –
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