You can change S-VOLs that are assigned to
snapshot data.
Note: If the amount of
snapshot data in selected P-VOLs or the total number of pairs in selected snapshot
groups exceeds 32,768, an error message appears when attempting to perform pair
tasks.
- You must have the Storage Administrator (Local Copy) role.
- The Thin Image Advanced pair containing the S-VOL you want to change must be in
the PAIR status, PSUS status, or PSUE status.
- The Thin Image Advanced pair containing the volume to be assigned as the target
S-VOL must be in the PSUS status.
Changing assignment of S-VOLs
using CCI
commands
The following is an example of changing the S-VOL for the snapshot data of MU number
4 to the S-VOL of LDEV number 20:00:
raidcom replace snapshot -ldev_id 0x2000 -mirror_id 4
The following is an example of changing the S-VOL for snapshot data by specifying the
snapshot group instead of the MU number:
raidcom replace snapshot -ldev_id 0x2000 -snapshotgroup snap3
If you do not specify an MU number as in the second example, snapshot data with an MU
number in the snapshot group (specified by the P-VOL corresponding to the specified
S-VOL) is automatically selected. In this case, unexpected snapshot data might be
assigned to the specified S-VOL. If you want to select specific snapshot data,
specify the applicable MU number, not the applicable snapshot group.
Changing assignment of S-VOLs using HDvM - SN
- In the Explorer pane, click Storage Systems, expand the storage system tree, expand Replication, and then click Local Replication.
- In the Local Replication window, select a P-VOL in the TI Root Volumes tab or a snapshot group in the Snapshot Groups tab.
- Click Operate TI Pairs.
- In the TI Pairs window, click .
Note:
- When you assign an S-VOL, you cannot simultaneously specify both the P-VOL
of a Thin Image pair and the P-VOL of a Thin Image Advanced pair. Specify the P-VOL of one pair or the
other.
- You cannot operate on both a Thin Image pair and a Thin Image Advanced pair by simultaneously specifying both the
snapshot group containing the Thin Image pair and the snapshot group
containing the Thin Image Advanced pair. Specify a snapshot group
containing one pair or the other.
- You cannot simultaneously specify and operate on both a Thin Image pair
and a Thin Image Advanced pair. Specify one pair or the other.
You can specify P-VOLs in
Device Manager - Storage Navigator until the total number of snapshots reaches 32,768. In
addition, you can specify snapshot groups until the total number of pairs
reaches 32,768.
-
From the
Available LDEVs table, select the LDEV you want to assign as the S-VOL, and then click
Set.
The selected LDEV is displayed in the
Secondary Volumes column of the
Selected Pairs table.
Note:
- The nondisruptive
migration volumes do not appear in the Available
LDEVs table.
- If you select a capacity in
Capacity, the
Available LDEVs and
Selected Pairs tables display the LDEVs that match the selected capacity.
- If you select a row in the
Available LDEVs table and a row in the
Selected Pairs table and then click
Set, you can configure a pair.
- If you select LDEVs that were assigned to an S-VOL with the
Exclude Assigned Volumes check box unchecked, the S-VOL to which snapshot data is assigned can be changed.
-
Click
Finish, and then confirm the settings.
-
Accept the default task name or enter a unique name.
You can enter up to 32 letters, numbers, and symbols, except the following:
\ / : , ; * ? " < > |
-
If you want to monitor the task after submitting it, select
Go to tasks window for status.
-
Click
Apply to submit the task.