HP XP Racks - Manual (Page 54)

You cannot Quick Restore the following pairs:
◦ An BC/SS L2 pair
◦ A pair volume for which you are formatting either internal volume using Quick Format.
For more information about formatting volumes using Quick Format, see the HP XP7
Provisioning for Open Systems User Guide.
◦ A pair in which one volume is a THP V-VOL, though not both.
◦ An BC/SS S-VOL you are sharing with an FS volume.
Workflow for resynchronizing BC pairs
Use the following workflow to resynchronize BC pairs:
1. Place the S-VOL offline.
2. Split or suspend the pair.
NOTE: The pair can also be in the process of being Quick Split (“PSUS(SP)/PSUS” status).
3. (Optional) If you are concerned about host server I/O performance, check to make sure the
I/O load is light.
For more information about checking I/O performance-related information, see the HP XP7
Remote Web Console User Guide.
4. Resynchronize the pair.
For more information about resynchronizing BC pairs, see “Resynchronizing or restoring BC
pairs” (page 55) .
Related topics
•
“System options that affect performance” (page 30) .
•
“Guidelines for maximizing host server I/O performance” (page 17) .
•
“Forward resynchronization” (page 52) .
•
“Pair splitting methods” (page 46) .
Workflow for restoring BC pairs
Use the following workflow to restore BC pairs:
1. Place the P-VOL offline.
2. Split or suspend the pair.
If you plan to restore pairs using Reverse Copy, split or suspend the pairs sharing the same
P-VOL.
If the BC pair you plan to restore shares a volume with Cnt Ac-S or Cnt Ac-J, suspend the Cnt
Ac-S or Cnt Ac-J pair.
For more information about splitting BC pairs, see “Splitting BC pairs” (page 48) .
For more information about suspending pairs, see “Suspending BC pair creation” (page 43) .
3. Restore the pair.
For more information about restoring pairs, see “Resynchronizing or restoring BC pairs”
(page 55) .
54 Managing Business Copy pairs