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NOTES:
If you turn off the AC power of disk array unit during write
operation (with POWER LED flashing) by mistake, the
system enters the backup mode. Turn on the AC power of
the entire disk array unit again. When the disk array unit has
started, push down the SHUTDOWN switch to complete the
write operation.
Writing cache data onto a disk drive takes about 20 minutes
at maximum.
For details of Snap Shot, see "12.1 Note on Using Snap
Shot" in Appendix A "Features of Disk Array Unit".
For details of Dynamic Data Replication, see "8. Notes on
Use of DynamicDataReplication" in Appendix A "Features
of Disk Array Unit".
When the host system is shut down, it writes the remaining cache data into the
disk array unit. The cache data remaining in this host system is written into the
disk array unit. Before turning OFF the power, confirm that no cache data remains
on the host system and no data remains in the cache memory on the disk array
unit.
To check if data remains in the cache memory on the disk array unit, see the
[hard disk drive READY LED] after shutting down the host system. If the [hard
disk drive READY LED] is flashing, data remains in the cache memory on the disk
array unit. It takes a maximum of about 20 minutes to write the remaining data
from the cache memory to the disk drive.
7-4
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