Hp StorageWorks XP Remote Web Console Software Manuale Utente Pagina 103
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Table 25 Changes of URz Pair Status by Delta Resync Operation (When Business Tasks
are Transferred from TCz Secondary Site to the Primary Site)
URz Pair
Pair Status before Delta
Resync Operation
Pair Status after Delta Resync Operation
Primary Da
Volume
ta
Secondar
Volume
y D Primary Data Volumata eSecondary Data Volume
URz pair between TCz
Synchronous primary site a
URz secondary site
nd
Hold Hold Duplex or Pending DuplexDuplex or Pending Duplex
URz pair between TCz
Synchronous secondary site
and URz secondary site
Duplex or
Suspend
Duplex or
Suspend
Hold Hold
Caution on transferring business tasks back to the primary site when using delta resync:
After you remove failures from the primary site and other locations and then the system is changed to 3DC
multi-target configuration, the status of a pair between the primary site and the URz secondary site may
be abnormal. If the status of the pair remains abnormal, you will be unable to transfer your business tasks
back to the primary site. To solve this problem, please see Table 26 on page 103, check the pair status
and then perform a problem-solving operation before transferring business tasks back to the primary site.
Table 26 Pair Status and Operation after Recovery of the Primary Site
No.
If the Status of
the Pair in the
Primary Site is
and the Status
of the Pair in the
URz Secondary
Site is
Please Perform the Following Operation before
Transferring Business Tasks Back to the Primary Site
1
Pending Duplex Hold
Make sure that the status of the pair in the primary site is
Suspend, and then perform the operation explained in the
rowNo. 3ofthistable.
2
Duplex Hold
Perform the operation explained in the row No. 1 of this
table.
3
Suspen
d
Hold
Step 1
: Releasethe URzpairfromthe primary site.
Step 2:
Make sure that all the pairs belonging to the journal
group in the primary site are released.
Step 3:
Create a URz delta resync pair that extends from
the pr
imary site to the URz secondary site. For information
about
requirements for creating the pair, see Requirements
for Creating URz Pair for Delta Resync Operation.96
4
Hold Hold
The pair is in normal condition. You can transfer business
tasks as described earlier in this section.
5
Hlde Hold
Change the status of the Hlde pair back to
Hold. For information about how to do this, see
“Restoring a Pair of Data Volumes”onpage165.
6
Simplex Hold
Step
1:
Release the pair in Hold status from the URz
seco
ndary site.
Step
2:
Create a URz delta resync pair that extends from
the
primary site to the URz secondary site. For information
abo
ut requirements for creating the pair, see Requirements
for Creating URz Pair for Delta Resync Operation.96
Hitachi Universal Replicator for z/OS user guide for XP12000/XP10000 Disk Arrays and SVS 200
103
- SVS 200 1
- Contents 3
- Figures 8
- About this Guide 13
- Document Conven 14
- Getting Help 15
- Benefits 18
- Business Solutions 18
- Hitachi Shad 19
- Journal Obtain 22
- Journal Copy 22
- Journal Restore 22
- URz Components 23
- Main and Remote C 25
- Journal Group 25
- Data Volume Pair 26
- Journal Volume 26
- Remote Copy Connections 28
- URzRemoteConsole Software 29
- Host I/O 29
- Time-Stamping Function 29
- Remote Copy Operations 30
- Update Co 31
- Journal Group Operations 31
- Logical DKC (LDKC) 33
- Update Copy Operation 35
- Journal Processing 36
- Creating and S 37
- Storing Journa 38
- Types of Journal 39
- URz Delta Resync Operation 40
- Journal Obta 41
- URz Pair Status 45
- Pair Status Description 47
- Suspend Types 48
- URz Suspension Condition 50
- Command Device 53
- System Requirements 55
- Disk Track Format 56
- Logical Volume Types 57
- The Maximum Number of Pairs 59
- Installing the Hardware 64
- Enabling the URz Option(s) 66
- Planning of Journal Volumes 67
- Journal Volume C 69
- DKC Journal Transfer Speed 70
- System for Remote Console 72
- Basic Behavior 73
- Storage Systems are Used) 74
- Extended Consistency Groups 74
- Systems 77
- Disaster Recov 78
- Combining URz w 79
- Combining 81
- Figure 25 Res 85
- Using At-T 87
- Business Continuity Manager 88
- Hardware Configuration 91
- Setup Procedure 92
- Configuration) 100
- Operation Window 107
- Displaying Info 111
- Configuring Port Attributes 112
- Changing Option 116
- Adding Logical Paths 117
- Deleting Logical Paths 118
- Viewing the St 119
- Removing 121
- Secondar 121
- 5 Using Journal Groups 123
- Using Journal Groups 124
- Caution: 128
- Cautions: 132
- Deleting a Journal Group 141
- Splitting a 142
- Consistency Group 145
- Saving Pair S 154
- Displayin 159
- 7 Monitoring Remote Copy 171
- Operations 171
- Statistic Description 174
- 8Viewing HistoryofDataVolume 175
- Pair Operations 175
- Displaying th 181
- Clearing SIMs 183
- Displaying a L 190
- A master journal group 191
- A restore journal group 191
- Switching Opera 198
- 12 Troubleshooting 201
- Path Status 203
- Troubleshooting 208
- 13 Power Management for Disk 209
- Storage Systems and Network 209
- Relay Devices 209
- Volumes 213
- 15 SIM Reporting 215
- Acronyms and Abbreviations 218
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