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Table 19 Restrictions on Remote Command Device
Item
Restriction
Emulation type
OPEN-V
Number of LDEVsinanexternalvolume
1
Cache mode Disable
Minimum capacity
96,000 Blocks
(about 47 MB)
Maximum capacity
2TB
• The remote command device cannot be identified by the Port Discovery or Volume Discovery
of External St
orage.
• You cannot execute I/Os to the remote command device.
• You cannot set the command device disable on the remote command device.
• You cannot se
t the command device security on the remote command device.
• Do not set the command device security on the external storage system side for the command
device that is mapped as a remote command device.
• You cannot c
reate a LUSE volume using a remote command device.
• You cannot create CVs using the VLL function in the remote command device.
• Cache Residency Manager is not available on the remote command device.
Mapping a Command Device as a Remote Command Device
The command devices that can be mapped as remote command devices are displayed in the Device
column of theVolumeOperation window as shownin Table 18 on page 101.
To map a command device, select a command device that can be mapped and follow the procedure in
the section “Mapping an External Volume Automatically”onpage69.
Using Continuous Access or Continuous Access Journal with
Remote Command Device
When you want to use Continuous Access or Continuous Access Journal with a remote command
device, y
ou need two different kinds of ports, which are an initiator port for Continuous Access or
Continuous Access Journal and an external port for the remote command device. However, if you set the
Initiator/External MIX mode, you will be able to use a port as both initiator port for Continuous Access or
Continu
ous Access Journal and external port only for the remote command device.
Before you set the Initiator/External MIX mode, you need to prepare initiator ports and external ports in
one port block of the Standard mode. You can set the Initiator/External MIX mode on the port block that
consist
s of the initiator ports and external ports.
Figure 47 on page 103 shows difference between the Standard mode and Initiator/External MIX mode.
When the Standard mode is set to the ports, you have to connect the cables for both initiator port and
external port. However, if you set the Initiator/External MIX mode, you just need to connect one cable,
and you
can use Continuous Access or Continuous Access Journal and remote command device.
For detailed information on the port block and setting the Initiator/External MIX mode, see the HP
StorageWorks XP24000 LUN Manager User’s Guide.
102
Remote Command Devices
- HP StorageWorks 1
- Edition 2
- Description 2
- Contents 3
- Figures 7
- About this Guide 11
- XP External Storage Software 13
- Figure 2 15
- 2 About External Storage 17
- Operations 17
- External Storage Components 18
- Volumes and Mapping Paths 19
- External Storage Operations 20
- Configuring External Storage 20
- Choosing the External Port 21
- Configuring Ex 22
- Cross-subsyste 23
- Connecting Mainframe Volumes 29
- Choosing Mapping Policy 30
- Interope 33
- Continuous Access Operations 36
- Business Copy Operations 39
- XP Snapsh 40
- Figure 18 41
- Capacity Guidelines 45
- Volume Attribute Guidelines 47
- Performan 48
- RAID Level Considerations 48
- Starting Ex 49
- 4UsingtheExternalStorageGUI 51
- Volume Operation Tree 52
- Preview Dialog Box 57
- Path Operation Window 58
- Path Operation Tree 60
- Port Operation Window 63
- Port Operation T 65
- Port Operation List 65
- Setting Por 68
- Mapping an Ex 69
- Caution: 70
- Add Volume Dialog Box 71
- LDEV Mapping (Au 74
- SSID Dialog Box 76
- Configuring Cros 81
- Canceling the Cr 83
- LDEV Information Dialog Box 84
- Displayed Item 86
- Turning On or Of 87
- External Volume 89
- Checking Con 91
- Operation 91
- Resuming an Ind 92
- Restoring the Pa 93
- Changing the I 94
- Editing M 95
- 6 Remote Command Devices 99
- Remote Command Devices 100
- Remote Command Device 102
- : Cable 103
- : Ports of Standard mode 103
- 7 Troubleshooting 107
- Corrective Action 108
- Calling HP Technical Support 111
- Troubleshooting 112
- AConnectingExternalStorage 113
- Systems 113
- System Model 114
- TagmaStore W 115
- Thunder 9500V Storage System 116
- Window Names 117
- Parameters 117
- Parameter Settings 117
- Controller 118
- USP V Storage System 119
- System) 122
- SVS200 Storage System 123
- EVA Storage System 124
- 6120/6320 125
- Non-HP Storage Systems 126
- BRequiredVolumeCapacityfor 127
- Each Emulation Type 127
- Capacity 129
- List for Each Emulation Type 129
- DAcronymsand Abbreviations 135
- Acronyms and Abbreviations 136
- Volume Operation Window,51 138
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