Hp StorageWorks XP Remote Web Console Software Manual de usuario Pagina 25
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Main and Remote C
ontrol Units
The main control unit (primary storage system) and remote control unit (secondary storage system)
control URz operations:
• The primary sto
rage system is the control unit in the primary storage system which controls
the primary dat
a volume of the URz pairs and master journal volume. The XP Remote Web
Console remote console PC must be LAN-attached to the primary storage system. The primary
storage system communicates with the secondary storage system via the dedicated remote copy
connections. The primary storage system controls the host I/O operations to the URz primary
data volume and the journal obtain operation of the master journal volume as well as the URz
initial copy
and update copy operations between the primary data volumes and the secondary
data volumes.
• The secondary storage system is the control unit in the secondary storage system which controls
the secondary data volume of the URz pairs and restore journal volume. The secondary storage
system controls copying of journals and restoring of journals to secondary data volumes. The
secondary storage system assists in managing the URz pair status and configuration (e.g., rejects
write I/Os to the URz secondary data volumes). The secondary storage system issues the read
journal command to the primary storage system and executes copying of journals. The secondary
XP Remote
Web Console PC should be connected to the secondary storage systems at the
secondary site on a separate LAN. The secondary storage systems should also be attached to a
host system to allow sense information to be reported in case of a problem with a secondary data
volume or secondary storage system and to provide disaster recovery capabilities.
The XP disk array can function simultaneously as a primary storage system for one or more primary data
volumes and as a secondary storage system for one or more secondary data volumes, provided the
remote copy connections and fibre-channel interface ports are properly configured. The URz software
allows you to specify the secondary storage system from the connected primary storage system. URz
operations can be performed on all LDEVs except for the XP disk array command device. For further
infor
mation on the XP disk array command device, please refer to the XP for Business Continuity Manager
Softw
are user’s guide.
When
you configure a URz journal group pair, you have to specify the serial numbers of primary storage
syst
ems and secondary storage systems. You have to specify the different serial numbers of primary
stor
age system and secondary storage system for the same URz journal group pair. If you have to specify
the same serial number, please contact your HP account team.
Journal Group
Journal group consists of two or more data volumes and journal volumes. It is a feature that allows you to
sort multiple data volumes and journal volumes into collective units to tailor URz to meet your unique
business needs. The journal group in the primary storage system is referred to as the master journal
group. The journal group in the secondary storage system is referred to as the restore journal group.
The data volumes in the master journal group are also called the primary data volumes. The journal
volumes in the master journal group are called the master journal volumes. The data volumes in the
restore journal group are similarly called the secondary data volumes. The journal volumes in the restore
journal group are called the restore journal volumes.
The data update sequence from the host is managed per the journal group. The data update sequence
consistency between the master and restore journal groups to be paired is maintained and ensured. The
master and restore journal groups are managed according to the journal group number. The journal
numbers of master and restore journal groups that are paired can be different. One data volume and one
journal volume can belong to only one journal group.
Caution: Data volumes and journal volumes that belong to different LDKCs cannot coexist in the same
journal group.
For detailed information about the specification of journal groups, see Table 18 on page 63.
Hitachi Universal Replicator for z/OS user guide for XP12000/XP10000 Disk Arrays and SVS 200
25
- 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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