Resynchronizing Pairs - Hitachi G200 User Manual

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6 Click Finish.
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7 In the Confirm window, review the settings and enter a task name in the
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Task Name box.
8 Click Apply to save your settings in the system.
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Resynchronizing pairs

While a TrueCopy pair is split, the primary system does not perform update
copy operations to the S-VOL. Resynchronizing the pair updates the S-VOL
with differential data accumulated since the split, so that its data is again
identical with the P-VOL's data. Update copy operations begin again to the S-
VOL.
When resynchronizing, TrueCopy pairs can be migrated to High Availability
Manager. See the Hitachi High Availability Manager User Guide.
Prerequisite information
• Pair status must be PSUS or PSUE.
• This operation is performed from the primary system only.
Procedure
1 Open the Remote Replication window.
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In Hitachi Command Suite:
a
.
b
.
In Device Manager - Storage Navigator:
a
.
b
.
2 In the Remote Replication window, click the TC Pairs tab, and then
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select the pairs to be resynchronized.
3 In the TC Pairs tab, click Resync Pairs.
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4 In the Resync Pairs window, ensure that the pair to be resynchronized
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appears in the Selected Pairs table.
6-8
Hitachi TrueCopy® User Guide for Hitachi Virtual Storage Platform Gx00 and Fx00 Models
Depend on Primary Volume Fence Level: Writing to the P-VOL is
based on fence level specified during the Create Pairs operation. This
is the default.
Disable: Write I/Os to the P-VOL are rejected regardless of the fence
level. Select this option to maintain synchronization of the P-VOL and
S-VOL. Do not select this option if the P-VOL is necessary for host
system operations.
Disable is only available when performing the split operation from the
pair's primary storage system.
On the Resources tab, expand the Storage Systems tree.
Right-click the target storage system, and click Remote Replication.
Click Storage Systems, and then expand the Storage Systems
tree.
In the Storage Systems tree, click Replication > Remote
Replication.
TC pair operations