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Selecting and Restoring a Journal at the Secondary Storage System . . . . . . . . . . . . 31
Pair Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Split Types (PSUS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Suspend Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Suspension Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
3 Preparing for Continuous Access Journal Operations . . . . . . . . . 41
Requirements and Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
One-to-One Volume Copy Operations . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Logical Unit (LU) Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Maximum Number of Pairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Journal Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Accessing Continuous Access Journal Primary Data Volumes and Secondary Data Volumes . . . .
46
Cache and Nonvolatile Storage (NVS) . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Host Failover Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Duplicate Volumes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Instal ing the Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Set ing up Remote Copy Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Configuring the Primary Storage Systems and Secondary Storage Systems for Continuous Access Journal
Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Enabling the Continuous Access Journal Option . . . . . . . . . . . . . . . . . . . . . . . . 50
Interoperability with Other Products and Functions . . . . . . . . . . . . . . . . . . . . . . . 50
LUSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Virtual LUN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Cache Residency Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
LUN Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Business Copy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Continuous Access Synchronous (3DC Cascading Configuration) . . . . . . . . . . . . . . . 58
Basic Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Hardware Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Setup Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Continuous Access Synchronous (3DC Multi-target Configuration) . . . . . . . . . . . . . . . 61
Hardware Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Setup Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Changing to a 3DC Multi-target Configuration after Recovering from Primary Site Failures . .
63
Transferring Business Tasks from a Continuous Access Secondary Site to the Primary Site (in a
3DC Cascading Configuration) . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Transferring Business Tasks from the Continuous Access Secondary Site to the Primary Site (in a
3DC Multi-target Configuration) . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Recovering from Failures at the Primary Site and the Continuous Access Synchronous Secondary
Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Transferring Business Tasks from the Continuous Access Journal Secondary Site to the Primary Site 67
Data Retention Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Performance Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Planning of Journal Volumes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Data Transfer Speed Required for Journal Volumes . . . . . . . . . . . . . . . . . . . . . 70
RAID Group Configuration and Journal Group Configuration . . . . . . . . . . . . . . . . . 71
Arranging Journal Volumes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Journal Volume Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Journal Volumes in Restore Journal Groups . . . . . . . . . . . . . . . . . . . . . . . . . 72
Factors that Determine the Data Transfer Speed between the Primary Storage System and the Secondary
Storage System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Bandwidth of Data Transfer Paths . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Journal Transfer Speed of the DKC . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Performing Remote Copy Between an HP XP12000 Disk Array and an HP XP24000 Disk Array . . . .
74
Logical Storage System (LDKC) that can be Connected to an HP XP12000 Disk Array . . . . . .
74
Volume that can Be Used to Create Pairs . . . . . . . . . . . . . . . . . . . . . . . . . 75
Connection with an HP XP12000 Disk Array for a 3DC Remote Copy Configuration . . . . . . . 75
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Dieses Handbuch ist für folgende Modelle:
Media Storage - HP XP20000/XP24000 Disk Array (3.49 mb)
Media Storage - HP XP24000 Disk Array (3.49 mb)

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