HP StorageWorks Device Mapper Multipath Enablement Kit for HP StorageWorks Disk Arrays installation and reference guide (AA-RW8RE-TE, June 2009)

Contents
About this guide ................................................................................... 5
Intended audience ...................................................................................................................... 5
Related documentation ................................................................................................................ 5
Document conventions and symbols ............................................................................................... 5
HP technical support ................................................................................................................... 6
Subscription service .................................................................................................................... 6
HP websites ............................................................................................................................... 6
Documentation feedback ............................................................................................................. 7
Product feedback ........................................................................................................................ 7
1 Introduction ....................................................................................... 9
Overview ................................................................................................................................... 9
Features ..................................................................................................................................... 9
Software components ................................................................................................................ 10
DM Multipath operation ............................................................................................................ 10
2 Installing HPDM Multipath ................................................................. 11
3 Configuring DM Multipath ................................................................ 13
Using /etc/multipath.conf File .................................................................................................... 13
Setting up Device Mapper Multipath daemon ............................................................................... 14
4 Using DM Multipath ......................................................................... 17
Creating an alias using /etc/multipath.conf file ............................................................................ 17
Using Multipath map .......................................................................................................... 17
Path grouping .............................................................................................................. 19
Clustering Solutions with DM Multipath ........................................................................................ 20
Configuring HP Service Guard with DM Multipath devices ....................................................... 20
Configuring SteelEye LifeKeeper with DM Multipath devices ..................................................... 21
5 Removing HPDM Multipath tools ........................................................ 23
Removing HPDM Multipath tools ................................................................................................. 23
6 Troubleshooting ............................................................................... 25
7 Abbreviations .................................................................................. 27
Device Mapper Multipath Enablement Kit for HP StorageWorks Disk Arrays installation and reference
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