Changing fence level, Rcu maintenance, Changing minimum paths, round trip time, wait time – HP XP P9500 Storage User Manual
Page 71: Changing fence level rcu maintenance
Note the following about LDEV IDs
•
An ID ending in # (such as, 00:00:3C #) indicates the LDEV is an external volume. For more
information, see the HP XP P9000 External Storage for Open and Mainframe Systems User
Guide.
•
An ID ending in X (such as, 00:00:3C X) indicates the LDEV is a Thin Provisioning virtual
volume. For more information, see the HP XP P9000 Provisioning for Open Systems User
Guide.
Changing Fence Level
You can change a pair’s fence level, which is an option that establishes whether or not the system
rejects write operations to the P-VOL under certain failure circumstances. If you need more
information on fence levels, see
Fence Level options for I/O to the P-VOL after suspension (page 21)
.
Other pair options such as difference management cannot be changed unless you release and
recreate the pair.
Procedure 20 To change the fence level
1.
In Remote Web Console, click Actions > Remote Copy > Continuous Access Synchronous >
Pair Operation.
2.
Change to Modify mode by clicking the
icon.
3.
In the tree, select the port, host group, CU, or the CU grouping where the pair is located.
4.
Select the P-VOL from the list pane, right click, and click Change Pair Option. The Change Pair
Option dialog box displays.
5.
From the P-VOL Fence Level box, select the fence level for the new pairs.
6.
Click Set then Apply.
If the operation does not start normally, an error code displays in the Error Code column in the
Preview list. To display an error message, select the LU, right-click, and select Error Detail.
RCU maintenance
RCU maintenance consists of the following:
•
Changing Minimum Paths, Round Trip Time, other RCU options
•
Adding, deleting SSIDs for an RCU (page 72)
•
Deleting Continuous Access Synchronous (page 72)
Changing Minimum Paths, Round Trip Time, Wait Time
You can change the options that affect how the system runs your copy operations. These are:
•
Number of minimum paths for a pair.
•
Wait time until data transfer is complete (MIH RIO).
•
Round trip time, which affects update and initial copy priorities. See
for more information.
To change the RCU options
Procedure 21 To change the RCU options
1.
In Remote Web Console, click Actions > Remote Copy > Continuous Access Synchronous >
RCU Operation.
2.
Change to Modify mode by clicking the
icon.
3.
Select MCU&RCU in the Display box.
4.
Right-click the desired RCU in the list and click RCU Operation/Change RCU Option.
Changing Fence Level
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