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1 Overview of connecting external arrays
External Storage XP realizes the virtualization of storage arrays. You can use External Storage XP to
access multiple storage arrays connected by a Fibre Channel interface as if they were all one storage
array. Once you connect another storage array to an XP array or storage virtualization system using
External Storage XP, you can also use Command View XP or XP Remote Web Console to manage
the data space (but not necessarily the management) of the other storage arrays.
External Storage XP supports external storage LDEVs of any standard XP emulation type, such as
OPEN-3, OPEN-8, OPEN-9, OPEN-L, OPEN-K, OPEN-V, 3390-3, or 3390-0.
NOTE:
Currently only the HP StorageWorks XP12000 and XP10000 Disk Arrays and the HP StorageWorks 200
Storage Virtualization System (SVS200) support external storage.
In this user guide, the original XP12000/XP10000/SVS200 is called the local array and the connected
storage array is called the external array. The volume managed in the local array is called an internal
storage virtualizer LDEV (or internal LDEV), and the volume in an external array is called an external
LU.
IMPORTANT:
This guide contains information about internal disks or LDEVs. Unlike the XP12000/XP10000 Disk Arrays,
the SVS200 has no internal disks. Therefore, information about internal disks or LDEVs does not apply to
the SVS200.
With the help of host mirroring middleware, Auto LUN XP or HP StorageWorks XP Tiered Storage
Manager, you can use External Storage XP for online or offline data migration, providing a point-in-time
copy of data between an external device and the local array.
Flex Copy XP is another HP StorageWorks product that copies user data between an LU on a local
array and an LU on an external storage device. For a detailed description of Flex Copy XP, see the
HP StorageWorks Flex Copy XP user guide.
External Storage XP features
The following are External Storage XP features:
• Using External Storage XP to map an external LU as an internal LDEV, you can manage the external
LU capacity using Command View XP or XP Remote Web Console as if it were a volume in the
local array.
Mapping means assigning Virtual Devices (VDEVs) and, consequently, Logical Devices (LDEVs)
and host port LUs to external LUs. If you map external LUs as internal VDEVs, you can use Command
View XP or XP Remote Web Console to then assign the VDEV to an internal CU:LDEV and a port/LU
address. This allows you to use an external LU as if it were an LDEV in the local array.
External Storage XP user guide for the XP12000, XP10000, SVS200 15
- HP StorageWorks 1
- XP12000, XP10000, SVS200 1
- DescriptionDateEdition 2
- Contents 3
- About this guide 11
- HP technical support 13
- Subscription service 13
- HP web sites 13
- Documentation feedback 13
- About this guide14 14
- External Storage XP features 15
- System requirements 19
- NotesStorage array 20
- CAUTION: 22
- External ports 24
- External LU to be mapped 24
- External LU groups 25
- Alternate paths 26
- Powering arrays on or off 32
- To power local arrays off 34
- To power local arrays on 34
- To power external arrays off 35
- To power external arrays on 35
- Changing the cache mode 57
- For example, Company A uses: 61
- Creating cache partitions 62
- Changing storage system modes 65
- 4 External Storage XP panes 67
- External Storage XP panes68 68
- Device tree 69
- Device list 70
- WWN tree 73
- WWN list 74
- Port tree 76
- Port list 77
- External Storage XP panes78 78
- Filter button 79
- Port Operation pane 80
- Port Operation tree 82
- Port Operation list 83
- External Storage XP panes84 84
- 5 Configuring external LUs 85
- Configuring external LUs86 86
- Discovering and Mapping LUs 87
- Configuring external LUs88 88
- Configuring external LUs90 90
- Select Paths pane 92
- Configuring external LUs94 94
- Configuring external LUs96 96
- Configuring external LUs98 98
- Configuring external LUs100 100
- Select LDEV window 101
- Configuring external LUs102 102
- Configuring external LUs104 104
- Configuring external LUs106 106
- Port in Standard mode 107
- Defining alternate paths 108
- Configuring external LUs110 110
- Changing alternate paths 111
- Configuring external LUs112 112
- Configuring external LUs114 114
- (Delete Paths) 115
- Configuring external LUs116 116
- Configuring external LUs118 118
- Configuring external LUs120 120
- Configuring external LUs122 122
- Configuring external LUs124 124
- Configuring external LUs126 126
- Configuring external LUs128 128
- Configuring external LUs130 130
- Configuring external LUs132 132
- Configuring external LUs134 134
- Stopping external arrays 136
- 7 Remote command devices 145
- Remote command devices146 146
- Remote command devices150 150
- Remote command devices152 152
- Corrective actionError 154
- Examples of recovery 168
- Path status 168
- WMS subsys. mods 170
- WMS subsys. and contr 171
- WMS subsys.) 171
- Examples of Recovery 180
- Procedure 180
- Path Status 180
- Connecting EVA arrays 181
- 2 TBOPEN-V 183
- Connecting MSA1000/1500 191
- Setting up the MSA 192
- Defining MSA array objects 193
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