HP StorageWorks P9000 User Manual page 164

Item Description
Pair Operation
(continued)
Used Volume The size of used volumes, and also indicates the licensed capacity. For example, if 12.34 (15.0) (TB)
appears, the licensed capacity for Cnt Ac-J is 15.0 terabytes, and 12.34 terabytes of volumes are used.
If the licensed capacity is unlimited, the sized of used volume does not appear.
Total Pairs The current total number of pairs.
164 Continuous Access Journal Z GUI reference
Pair JNL: The journal number for the remote storage system. This column is blank if the volume in the
local storage system is neither a P-VOL nor a S-VOL.
Err Lv.: The range of pair split on error.
Mirror: If an error occurs with this pair, all the pairs in the mirror where this pair belongs will be split.
Volume: If an error occurs with this pair, only this pair will be split.
Sync.: If the volume in the local storage system is a P-VOL, this column shows progress of an initial
copy operation. If the volume in the local storage system is a S-VOL, this column shows information in
the following ways:
- If the volume pair is not split, this column shows nothing.
- If the volume pair is split and therefore is in Suspend status, this column usually shows synchronization
rate (that is, concordance rate) between the S-VOL before it became split and the S-VOL after it became
split.
For example, the synchronization rate (that is, concordance rate) is 100 percent if the contents of the
S-VOL are the same before and after the volume pair became split.
Caution: If a failure in the initial copy operation causes the volume pair to be split, this column
shows nothing. If a failure occurs in the initial copy operation, the Detailed Information dialog box
shows the phrase "Initial copy failed".
During the initial copying, the data of the control cylinder is also copied, resulting in this column
showing 99%. Copying of control cylinder data finishes shortly, and the display of the column changes
to 100%.
In the following cases, this column will be blank:
- When the volume in the local storage system is neither a P-VOL nor a S-VOL.
- When the status of the volume pair is HOLD or HLDE.
CLPR: The number and the name of the CLPR where the data volume belongs.
Pair Copy Time: The time taken for the copy operation (from the start of the operation to the end). The
time that is shown in Pair Copy Time differs from the time that is shown in Copy Time on the History
window.
To create a pair:
- MCU receives a request to create a pair.
- MCU receives a request to start the paircreate operation.
- The paircreate operation is started according to the conditions of initial copy priority and initial copy
activities.
Pair Copy Time The time taken for the copy operation (from the start of the operation to the end). The
time that is shown in Pair Copy Time differs from the time that is shown in Copy Time on the History
windowTo create a pair:
a. MCU receives a request to create a pair.
b. MCU receives a request to start the paircreate operation.
c.The paircreate operation is started according to the conditions of initial copy priority and maximum
initial copy activities.
Pair Copy Time shows the amount of time needed from step a to the completion of the paircreate
operation (i.e., the progress of the paircreate operation reaches 100%). Copy Time on the History
window shows the amount of time needed from step a to the completion of the paircreate operation.