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HP StorageWorks User Manual

HP StorageWorks
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External Storage XP user guide 5
System parameters for connecting TagmaStore AMS and TagmaStore WMS subsystems . . . . . . . . 105
Relationship between serial numbers in the Device list on the LU Operation pane and TagmaStore AMS
and TagmaStore WMS subsystem models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Relationship between the WWN of the port on the TagmaStore AMS or TagmaStore WMS subsystem and
the controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Path status and examples of recovery procedures (TagmaStore AMS and TagmaStore WMS subsystems)
107
Connecting XP12000/XP10000 disk arrays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Path status and examples of recovery procedures (XP12000/XP10000 disk arrays) . . . . . . . . . . . 108
Connecting XP1024/XP128 disk arrays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Path status and examples of recovery procedures (XP1024/XP128 disk arrays) . . . . . . . . . . . . . . 109
Connecting XP512/XP48 disk arrays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Path status and examples of recovery procedures (XP512/XP48 disk arrays) . . . . . . . . . . . . . . . . 110
Connecting EVA disk arrays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Identifying logical volumes of EVA disk arrays (using Characteristic 2) . . . . . . . . . . . . . . . . . . . . 111
Alternate path’s behavior when an EVA disk array is connected . . . . . . . . . . . . . . . . . . . . . . . . . 112
Required volume capacity for emulation types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Adjusting volume capacity for copy pair setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Copying data from external disk arrays (using external LUs as P-VOLs). . . . . . . . . . . . . . . . . . . . . . . 116
Copying data to external disk arrays (setting external LUs as S-VOLs). . . . . . . . . . . . . . . . . . . . . . . . 117
A Using XP12000 disk arrays with EVA GL disk arrays attached as subordinated external storage
disk arrays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Physical disk array connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Minimum physical configuration for HA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Expanded configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Creating new EVA host objects for the XP12000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Creating and presenting EVA Vdisks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Defining XP12000 external ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Defining XP12000 external storage LDEVs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Recommendations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Performance considerations for using EVAs as external storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Defining alternate paths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
B Configuring MSA1000/1500 as external disk arrays. . . . . . . . . . . . . . . . . . . . . . . . . 129
Configuring external disk array LUs, host mode, and ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Connecting MSA1000/1500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Setting up the MSA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Defining MSA array objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Calculating MSA LU size and defining LUs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Selective Storage Presentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Figures
1 External Storage XP concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2 Example of alternate path configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3 Example of alternate path configuration using two switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4 Example of incorrect alternate path configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5 Alternate path mode is Multi mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6 Alternate path mode is Single mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7 Alternate path mode is Single mode with alternate paths in Normal and Standby . . . . . . . . . . . . . . . 26
8 Alternate path mode is Single mode with alternate paths in Standby only . . . . . . . . . . . . . . . . . . . . . 27
9 Writing new data to mapped external LUs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
10 Using existing data in mapped external LUs (without formatting) . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
11 Example of external LU with 2 TB or less. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
12 External LU capacity is larger than the specified emulation type’s capacity (OPEN-3 example) . . . . . . 33

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HP StorageWorks Specifications

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BrandHP
ModelStorageWorks
CategoryStorage
LanguageEnglish

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