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Combining Conti
nuous Access XP Journal and Business Copy XP
You can use Continuous Access XP Journal and Business Copy XP together in the same array and on the
same volumes to provide multiple copies of data at the primary and/or remote sites. Table 19 describes
host pair status reporting for Continuous Access XP Journal volumes, Business Copy XP volumes, and
Continuous Access XP Journal/Business Copy XP shared volumes. Table 20 shows the currency of
the data on a sh
ared Continuous Access XP Journal/Business Copy XP volume based on Continuous
Access XP Journal and Business Copy XP pair status.
• For shared Continuous Access XP Journal/Business Copy XP volumes, the Continuous Access XP
Journal pair
status is reported to the host if you query the Continuous Access XP Journal primary
or secondary data volume. To obtain the Business Copy XP pair status, query the Business
Copy XP pair's P-VOL.
• Business Co
pyXPsupportsmultipleS-VOLsforeachP-VOL.Ifyouissueapairstatusquerytoa
Business Copy XP P-VOL (for example, pairdisplay), the status of only one Business Copy XP pair
is reported (the pair with the S-VOL having the lowest LDEV ID). To obtain the pair status for the
Business Copy XP pairs with other S-VOLs, you must direct the host query to the specificS-VOL
using the S
-VOL's LDEV ID in the host command. The Business Copy XP displays the port, TID,
LUN, LDEV I
D and Business Copy XP pair status of all S-VOLs associated with a P-VOL.
Table 19 Host pair status reporting for Continuous Access XP Journal/Business
Copy XP shared volumes
Number of
Continuous
Access XP
Journal pairs
Number of
Business
Copy XP
S-VOLs
Pair status reported by local array
00
Simplex
0
1
Business Copy XP pair status
02ormore
Business Copy XP pair status for the pair whose S-VOL has the lowest
LDEV ID
1
0
Continuous Access XP Journal pair status
11
Continuous Access XP Journal pair status
1
2ormore
Continuous Access XP Journal pair status
Table 20 Data currency of a shared Continuous Access XP Journal/Business Copy
XP volume
Business Copy XP pair status
Continuous
Access XP
Journal
pair status
COPY (PD)
PAIR
COPY (SP) PSUS COPY
(RS/RS-R)
PSUE
COPY
Not current Not current Not current CURRENT Not current Not current
PAIR Not current Not current Not current CURRENT Not current Not current
PSUS/PSUE
Not current CURRENT CURRENT CURRENT CURRENT Not current
Figure 16 through Figure 19 show various Continuous Access XP Journal/Business Copy XP configurations
that share volumes.
• Continuous Access XP J
ournal/Business Copy XP configurations that share the Continuous Access
XP Journal primary data volume and Business Copy XP P-VOL
Figure 16 shows an example of a Continuous Access XP Journal primary data volume that also
functions as a Business Copy XP P-VOL. You can use this configuration to use Business Copy XP for
on-site data backup if a Continuous Access XP Journal failure occurs and to use Continuous Access XP
Journal to provide re
mote backup of the Business Copy XP P-VOL if a Business Copy XP failure occurs.
Continuous Access XP Journal user guide
69
- HP StorageWorks 1
- Contents 3
- About this guide 13
- Document conven 14
- HP technical support 14
- Subscription service 15
- HP websites 15
- Documenta 15
- 1OverviewofHPcopysolutions 17
- Overview of HP copy solutions 18
- XP Journal 19
- Journal obtain 20
- Journal copy 20
- Journal restore 20
- Components 21
- Local arrays 22
- Journal groups 23
- Data volume pairs 23
- Journal volumes 24
- Journal volume areas 25
- Consistency groups 26
- Remote copy connections 27
- Host failover software 28
- Update copy operations 30
- Read and w 30
- Journal processing 31
- Journal types 33
- Journal group o 34
- Journal obtain i 35
- Switching C 36
- Continuous Acce 44
- System requirements 47
- Logical unit (LU) types 48
- Maximum number of pairs 50
- Journal gr 51
- Duplicate volumes 53
- Installing h 58
- Planning for journal volumes 60
- Planning process 61
- Arranging journal volumes 62
- Journal volume capacity 62
- Access XP Journal operations 64
- You cannot u 68
- Combining Conti 69
- Basic behavior 75
- Hardware configuration 75
- Setup proce 76
- Disaster recovery 76
- Hardware configurations 78
- Setup procedure 79
- Transfer 87
- Copying access attributes 95
- See Table 27 97
- If the Writ 97
- If Continuous Ac 100
- DKC Operation pane components 100
- Changing option 108
- Adding logical paths 109
- Deleting logical paths 110
- 5 Using journal groups 117
- Using journal groups 118
- Changing opt 132
- Deleting journal groups 136
- Journal pair operations 141
- Restoring a p 159
- 7 Monitoring remote copy 165
- Starting usage monitoring 166
- Stopping usage monitoring 167
- Figure 67 Display Item pane 169
- Statistic Description 169
- 8Viewinghistoryofdatavolume 171
- History Operat 172
- 4. Click OK 175
- Changing array options 178
- Transferring 182
- Disaster recovery operations 184
- Overview o 185
- Blade syst 185
- Scope of Co 186
- Prerequisites 188
- Notes on operations 189
- Preparing fo 190
- NAS Blade 193
- Manager User's Guide 193
- (instance 16) 198
- Remote copy operations 201
- Splitting Cont 203
- Resynchronizin 205
- Disaster reco 207
- Commands 211
- Messages 211
- 12 Troubleshooting 213
- Corrective action 214
- Calling HP 219
- Troubleshooting 220
- When power i 221
- 14 Pinned track recovery for 225
- Continuous Access XP Journal 225
- 15 SIM reporting 227
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