Creating Remote Flashcopy Transactions - IBM DS8000 User Manual

10. On the Select target volumes page, select target volumes by changing the
11. On the Select copy options page, select the type of relationship and the copy
12. On the Verification page, review the attributes and values to verify that they
13. If the attributes and values are not correct, click Back to return and specify the

Creating remote FlashCopy transactions

Complete this task to create a remote FlashCopy (inband FlashCopy on the ESS
2105) at a target (remote) site using remote FlashCopy commands.
Remote FlashCopy operations can only be processed using the DS CLI and not the
DS Storage Manager. (Part of the Remote FlashCopy operation requires that you
create paths first. You can issue those requests using either the DS Storage
Manager or the DS CLI.)
To establish a FlashCopy relationship at the target site, remote FlashCopy
commands are issued to a source volume of a remote mirror and copy volume pair
on a source (local) storage unit and sent across paths (acting as a conduit) to a
target storage unit. This eliminates the need for a network connection to the target
site solely for the management of FlashCopy relationships.
Limitation: Remote FlashCopy commands establish a FlashCopy relationship at the
target (remote) site when a network connection to the target site is lost. The
Remote FlashCopy operation is not supported through the DS Storage Manager,
because network connections to both the source and target sites are required. If the
network connection to the target site is lost, the DS Storage Manager cannot
connect to the target site. Whether you use the DS Storage Manager or the DS CLI
for Steps 1 and 2, you must perform Step 3 from the DS CLI.
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DS8000 User's Guide
9. On the Select source volumes page, select the volumes that you want to
include for the Metro Mirror relationships and click Next. If the resource type
is an LSS, specify which from LSS to select source volumes. Optionally, you
can click the Create paths button to create a new path. You are linked to the
page where you can create a path.
storage complex to the name that is associated with the 2107/242x domain,
and click Next. Consider the following guidelines:
a. If you selected the automated pairing method, each source volume that
you selected is paired with a target volume.
b. If you selected the manual pairing method, you can select target volumes
from different LSSs on the target storage unit. This page repeats for each
of the source volumes that you selected.
options for the relationship and click Next. The Enable critical volume mode
and Create relationship even if target is online to host options are available
for count-key-data volumes only.
a. Select the Perform initial copy option the first time a that volume pair is
created because it is needed to ensure that the entire source volume is
copied to the target volume to guarantee that the source and target
volumes contain the same data.
b. Optionally, you can select the Suspend Metro Mirror relationship after
initial copy option because it only applies to Metro Mirror volume pairs.
This means that after data is completely copied to the target volume of the
volume pair, the target volume goes into the suspended state.
are correct.
correct values. Otherwise, click Finish to complete the process.