HP XP P9500 Storage User Manual
Page 73
When a pair is suspended, the primary system stops performing journal-obtain operations for the
pair. However, the primary system continues the following operations:
•
Continues accepting write I/Os for the suspended P-VOL
•
Keeps track of the P-VOL cylinders/tracks that are updated
•
Keeps track of journal data discarded during the pair suspension. (Both primary and secondary
systems do this.)
A split or suspended S-VOL has a separate consistency status that indicates its update sequence
consistency with respect to the other S-VOLs in the associated journal. Consistency status displays
on the secondary system only.
describes S-VOL consistency statuses.
When the pair is resynchronized, the primary and secondary systems perform the following
operations:
•
The secondary system sends the S-VOL bitmap to the primary system
•
The primary system merges the P-VOL and S-VOL bitmaps to synchronize the tracks
These actions insure that all cylinders/tracks containing journal data discarded on the secondary
system are resynchronized.
Filtering Information in the List in the Pair Operation window
Use the Display Filter dialog box to filter information in the list in the Pair Operation window. The
list shows only the volumes that satisfy certain conditions.
To filter information in the list in the Pair Operation window
1.
In the Pair Operation window, click Display Filter.
2.
Use the Display Filter dialog box to specify information that you want to display in the list.
3.
Click Set to close the Display Filter dialog box. The list in the Pair Operation window displays
the specified information only.
To restore the list to the default status (i.e., the status before filtering), click Reset in the Display
Filter dialog box and then Set in the same dialog box.
If you change settings in the Display Filter dialog box, the changes remain in effect during the
session until you reset the settings.
The Display Filter dialog box shows the following:
•
GID: Select the group number of a host group to be displayed. If you select All, all host groups
display in the list.
•
Journal: Select the journal to be displayed. If you select All, all journals display in the list.
•
Mirror: Select the mirror to be displayed. If you select All, all mirrors display in the list.
•
P-VOL/S-VOL: Select the type of volumes to be displayed.
If you select P-VOL, P-VOLs display in the list.
If you select S-VOL, S-VOLs display in the list.
If you select All, all P-VOLs and all S-VOLs display in the list.
•
CLPR: Select the CLPR to be displayed. If you select All, all CLPRs display in the list.
•
Internal/External VOL: Specify whether internal volumes or external volumes display in the
list. If you select All, all the internal and external volumes display in the list.
•
Status: Allows you to specify pair statuses. The volumes of the specified statues display in the
list.
•
Reset: Restores all options in the Display Filter dialog box to the default state. All the lists show
All and all the check boxes are selected.
Monitor pair activity and status
73