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Important notice
Note the following when performing CCI operations:
•
Do not execute ShadowImage, SnapShot, TrueCopy, or TCE operations
while formatting the volume. Formatting takes priority and
ShadowImage, SnapShot, TrueCopy, and TCE operations will be
suspended.
•
Remember to change the default value for the poll(10ms) parameter in
the configuration definition file.
•
When an internal process-conflict occurs between the CCI and the
array, the processing of the AMS array is temporarily suspended. If the
conflict continues, internal processing may not proceed. Therefore,
when monitoring (polling) the status of the AMS array (by creating a
script using the CCI commands) set the display-information-based
commands (that is pairdisplay, raidscan, raidar, and raidqry) to be
issued more than or equal to a minute.
•
Commands that change the status of pairs (paircreate, pairsplit,
pairresync) cannot be executed while changing the firmware online.
•
Do not change the firmware online while executing commands that
change the status of pairs (paircreate, pairsplit, pairresync). The
execution time for the copying process varies; changing the firmware
online suspends the copying operation temporarily.
The processing time for changing the firmware online is 4 min.for each
CTL (the copying process will be suspended for 4 minutes per CTL). The
waiting process in the batch file may end abnormally when executing a
copy (using a batch file) by designating a specific time.
•
Commands that change the status of pairs (paircreate, pairsplit,
pairresync) of TrueCopy and TCE cannot be executed while the host is
re-starting in the TrueCopy and TCE environment. The command may
end abnormally when executing a command while the host is re-
starting.
•
It is essential that both P-VOL and V-VOL should be defined in advance
from the Storage Navigator Modular 2. Also, the secondary volume (S-
VOL) used and assigned by the CCI is the same as the Snapshot image
created by Storage Navigator Modular 2.
•
In the case of Windows, do not use the diskpart command for a
mounting and unmounting of a volume. Refer to
on page 1-78
mount and unmount commands.
•
When using host I/O and CCI simultaneously, the completion of CCI
commands may be late by the performance and load of the host.
•
All command options displayed in help do not perform.
•
The options that can perform are limited to the options described in this
manual. See
•
The host machines must run on the operating system (OS) of the same
architecture and the same CCI version because the host machine may
not be able to recognize the paired volume of another host. However, it
is possible to prepare only one server at a secondary site by supporting
1–2
Hitachi AMS 2000 Family Command Control Interface (CCI) Reference Guide
and
Umount subcommand, on page 1-81
Chapter 4, Command options
Performing CCI Operations
Mount subcommand,
for use of CCI
for details.
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Troubleshooting
