HP StorageWorks XP Remote Web Console Software - Manual (Page 142)

142 Hitachi TrueCopy z/OS for HP XP12000/XP10000 and SVS 200 storage systems
NOTE: TC390 operations within one XP12000/XP10000 can be performed only if the SI390 option is
not active on the disk array.
The TC390 initial copy operation copies the entire contents of the M-VOL to the R-VOL. The data migration
is complete when the initial copy operation completes and the pair status changes from pending duplex to
duplex. The P/DAS host software function is used with TC390 Synchronous to complete the data migration
nondisruptively.
NOTE: If you are migrating data between disk arrays using P/DAS, both disk arrays must be the same
type (XP12000/XP10000 or other XP disk arrays). If you need to migrate data from other vendors’ storage
disk arrays onto the XP12000/XP10000, contact your HP account support representative.
To use TC390 Synchronous to migrate data from one volume to another:
1. Vary the R-VOL(s) offline from all attached hosts. The R-VOLs are the target volumes onto which you are
migrating the data. The M-VOLs (source volumes) can remain online.
2. Connect to the disk array containing the volume(s) to be migrated, and then start the TC390 software.
If not already done, install the remote copy connections and configure the ports (RCPs for serial,
initiator ports for fibre) (if migrating between disk arrays), and then add the RCUs.
3. On the TrueCopy main window, select the correct CU image and the appropriate volume(s), and then
start the TC390 Synchronous pair(s) using the Add Pair window (see ” Creating TrueCopy volume pairs
(Add Pair) ” on page 125).
4. Monitor the progress of the initial copy operation(s) and the status of the pair(s) on the Pair Status
window (see ” Viewing the status of TrueCopy volume pairs (Pair Status) ” on page 123). Refresh the
window as needed. When the status has changed from pending duplex to duplex, the M-VOL and
R-VOL are identical and synchronized.
5. Use the IBM P/DAS host software function (see ” P/DAS support ” on page 41) to redirect all application
I/Os to the R-VOL(s) nondisruptively. If the host system does not support P/DAS, use the following
procedure to stop using the M-VOL(s) and switch to the R-VOL(s):
a. Disable all applications using the M-VOL(s).
b. When all update activity to the M-VOL(s) has stopped, connect to the MCU, select the correct CU
image, and delete the TC390 volume pair(s) (see ” Deleting TrueCopy volume pairs (Delete Pair) ” on
page 136).
If the M-VOL(s) and R-VOL(s) are attached to the same host, vary the M-VOL(s) offline first, and then
vary the R-VOL(s) online. The M-VOL(s) and R-VOL(s) have the same VOLSERs and cannot be online
to the same host(s) at the same time.
c. If an R-VOL contains more cylinders than its M-VOL, update the R-VOL volume table of contents
(VTOC) using ICKDSF/REFORMAT.
d. To keep the volumes synchronized, establish the same TC390 pair(s) in the reverse direction using
the No Copy initial copy option (see ” Creating TrueCopy volume pairs (Add Pair) ” on page 125). If
the original M-VOL(s) will be temporarily unavailable for update copy operations, you can suspend
the new pair(s) so that the new MCU keeps track of changes.
e. Start the applications with the R-VOL(s). When the original M-VOL(s) are available, you can resume
the pair(s) using the Resume Pair window (see ” Resuming TrueCopy volume pairs (Resume Pair) ” on
page 134).
Point-in-Time (PiT) data duplication using TrueCopy Asynchronous
You can use TC390 to make Point-in-Time (PiT) duplicates of groups of volumes. The TC390A Group and
Drain suspend options can be used together to create a PiT copy, relative to an application, of an entire
TC390A consistency group of volumes.