5. For Primary Volume Fence Level, specify whether the primary system
rejects write operations to the P-VOL when the pair is split due to an
error.
¢
- Status: The P-VOL cannot be written to only if the primary system
is not able to change S-VOL status to PSUE.
¢
- Never: The P-VOL can always be written to.
¢
- Data: The P-VOL cannot be written to.
For more information, see
Allowing I/O to the P-VOL after a split—Fence
Level options on page 3-10.
6. For Copy Pace, specify the number of tracks to be copied during the
initial copy. The default is 15 (fast copy pace). To change the copy pace,
enter a number from 1 to 4. This option affects performance as follows:
¢
The speed of 1 is a slow copy pace, and is used to reduce impact on
host I/O.
¢
The speeds of 2 and 3 are a medium copy pace.
¢
The speed of 4 is a fast copy pace, and the host I/O performance
might be degraded.
If you enter a number from 5 to 15, the speed of 4 (fast copy pace) is
used.
TC pair operations
6-9
Hitachi TrueCopy® User Guide for Hitachi Virtual Storage Platform Gx00 and Fx00 Models
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