Hp XP P9500 Storage User Manual Page 156

  • Download
  • Add to my manuals
  • Print
  • Page
    / 192
  • Table of contents
  • TROUBLESHOOTING
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 155
Figure 29 Shared Cnt Ac-J volumes with BC primary volumes
Configurations with Business Copy secondary volumes
The following figure shows a BC primary volume used as the production volume. A remote Cnt
Ac-J backup copy is made of the BC secondary volume. The BC pair must be in PSUS status to
perform the Cnt Ac-J operation.
Figure 30 Shared Cnt Ac-J P-VOL with BC secondary volume
Pair status and data currency
The table below shows whether the data in a shared volume is current, given the combined status.
Table 11 Data currency of a shared volume
BC pair statusCnt Ac-J pair
status
PSUECOPY(RS/COPY,
COPY(RS-R)/COPY
PSUSCOPY(SP)/COPYPAIRCOPY(PD)/COPY
Not CurrentNot CurrentCurrentNot CurrentNot CurrentNot CurrentCOPY
Not CurrentNot CurrentCurrentNot CurrentNot CurrentNot CurrentPAIR
Not CurrentCurrentCurrentCurrentCurrentNot CurrentPSUS/PSUE
Check pair status for shared volumes as follows:
For Cnt Ac-J, check status of the primary volume or secondary volume.
For BC, check status of the primary volume.
BC supports multiple secondary volumes for each primary volume. When you check pair status,
the system returns status for only one pair—the pair whose secondary volume has the lowest LDEV
ID. To see status for the pairs with a different secondary volume, direct a host query to the specific
secondary volume using the secondary volume’s LDEV ID in the host command.
156 Configurations with Business Copy
Page view 155
1 2 ... 151 152 153 154 155 156 157 158 159 160 161 ... 191 192

Comments to this Manuals

No comments