Hp StorageWorks XP Remote Web Console Software Bedienungsanleitung Seite 139
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Figure 59 Change JNL Option Window
The Change JNL Option window displays the following:
• Inflow Cont
rol: Allows you to specify whether to restrict inflow of update I/Os to the journal
volume (in other words, whether to slow delay response to hosts).
Yes indicates inflow will be restricted. No indicates inflow will not be restricted. If Yes is selected and
the metada
ta or the journal data is full, the update I/Os may stop.
• Data Overflow Watch: Allows you to specify the time (in seconds) for monitoring whether
metadata and journal data are full. This value must be within the range of 0 to 600 seconds. If
Inflow Control is No, Data Overfl ow Watch does not take effect and does not display anything.
• Copy Pace: Allows you to specify the pace (speed) for an initial copy activity for one volume. The
default
is Low.
• Low: The speed of the initial copy activity is slower than Medium and High.
• Medium: The speed of the initial copy activity is faster than Low and slower than High.
If you want to specify Medium, please ensure that the amount of update I/Os (i.e., write requests
from ho
sts to primary data volumes) is 10 MB/s or less per one parity group. If it exceeds 10
MB/s, d
ata volume pairs may become split (suspended).
• High: The speed of the initial copy activity is faster than Low and Medium.
If you want to specify High, please ensure that update I/Os (i.e., write requests from hosts to primary
data volumes) will not occur. If update I/Os occur, data volume pairs may become split (suspended).
: The secondary storage system administrator cannot specify this option.
• Unit o
f Path Watch Time: Allows you to specify the unit of path watch time. You can specify
one of the following: minute, hour,or day.
• Path Watch Time: Allows you to specify the interval from when a path gets blocked to when a
mirr
or gets split (suspended).
This
value must be within the range of 1 to 59 minutes, 1 to 23 hours, or 1 to 30 days. You can
spec
ify a numeric value in Path Watch Time.
Hitachi Universal Replicator for z/OS user guide for XP12000/XP10000 Disk Arrays and SVS 200
13 9
- 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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