Item Description
Base Secondary Volume Select when changing Base Secondary Volume setting.
• Port ID: Port identifier.
• Host Group ID / iSCSI Target ID: Host group or iSCSI
target identifier.
• LUN ID: LUN identifier.
• Interval: Interval.
Primary Volume Fence
Level
TC only
Whether the P-VOL can be written to when the pair is split
due to error.
• Data: The P-VOL cannot be written to.
• Status: The P-VOL can be written to only if the primary
storage system can change S-VOL status to PSUE;
otherwise no.
• Never: The P-VOL can be written to.
Initial Copy Type Whether data is copied to the S-VOL when the pair is
created.
• Entire Volume: Data is copied. The default.
• None: Data is not copied. If you choose this option, you
should confirm the data be equal between the P-VOL
and S-VOL.
• Delta: Data is not copied. UR only.
If the pair is Universal Replicator pair, the status will be
changed to HOLD or HOLDING as a pair for delta
resync.
Copy Pace TC and GAD only
Number of tracks to be copied per remote I/O during the
operation. The default is 15. To change the copy pace,
enter a number from 1 to 4:
• 1 is slow. This setting limits the impact on host I/O to
maintain storage system performance.
• 2 and 3 is medium.
• 4 is fast. This setting increases the impact on host I/O
and might result in decreased storage system
performance.
If you enter a number from 5 to 15, the speed of 4 (fast
copy pace) is used.
ALUA Mode GAD only
Whether to enable ALUA mode:
• Enable: Use LDEV by ALUA.
• Disable: Does not use LDEV by ALUA.
Initial Copy Priority Scheduling order for the initial copy operation. Range is 1 to
256; default is 32. For GAD pairs, this is not displayed.
Error Level UR only
Whether to split all pairs in the mirror if a failure occurs
during this operation:
B-50
TC GUI reference
Hitachi TrueCopy® User Guide for Hitachi Virtual Storage Platform Gx00 and Fx00 Models
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