HP StorageWorks SAN Virtualization Services Platform administrator guide (5697-0109, July 2009)

Establishing a disaster recovery site ............................................................................................. 75
Testing or validating your ability to recover from a DR site without detaching or splitting the async
mirror group ............................................................................................................................ 76
Testing a DR site or switching between sites .................................................................................. 76
Failing over to the DR site and back to the main site after a problem ............................................... 77
Failing over to a disaster recovery site when the main site is totally lost ............................................ 78
8 Synchronous mirroring in a single stretched domain .............................. 81
Solution topology ...................................................................................................................... 81
Configuration requirements ........................................................................................................ 81
Zoning with stretched domains ................................................................................................... 82
Site failures .............................................................................................................................. 82
General description of site failures ........................................................................................ 82
Synchronous mirror behavior as a result of a site failure or a site disconnection .......................... 82
Synchronous mirror failure analysis ....................................................................................... 83
Recovering synchronous mirror volumes from site disconnection ................................................ 83
Recovering synchronous mirror groups on the surviving site ...................................................... 83
Recovering the surviving site by using Force Resume ................................................................ 84
Re-establishing the connection with the recovered site after Force Resume .................................. 86
Recovering the surviving site by using Force Delete ................................................................. 86
Re-establishing the connection with the recovered site after Force Delete .................................... 88
Using ForceActive to recover from failed stretched SVSP domains .............................................. 88
9 Basic troubleshooting ....................................................................... 91
Diagnostic tools ........................................................................................................................ 91
Fault isolation ........................................................................................................................... 91
Startup problems ................................................................................................................ 91
Configuration problems ....................................................................................................... 92
Presentation problems ......................................................................................................... 93
Administrative problems ...................................................................................................... 94
Zoning verification .............................................................................................................. 94
VSM server zoning ...................................................................................................... 95
DPM zoning ................................................................................................................ 95
VSM server LUN masking ............................................................................................. 95
DPM LUN masking ....................................................................................................... 95
A Using VSM with firewalls .................................................................. 97
B Deploying VMware ESX Server with SVSP ........................................... 99
Deployment overview ................................................................................................................ 99
Deployment steps ............................................................................................................. 100
Supported VMware ESX versions ........................................................................................ 100
Supported VSM software versions ...................................................................................... 100
Configuration ......................................................................................................................... 100
Fibre Channel zoning ....................................................................................................... 100
Storage system ................................................................................................................. 100
VSM GUI ........................................................................................................................ 101
VMware ESX server .......................................................................................................... 102
VMware storage administration best practices ............................................................................ 105
Rescan SAN operations .................................................................................................... 105
Resizing VSM virtual disks ................................................................................................. 105
Storage VMotion .............................................................................................................. 105
Using VSS with Windows 2003 SP2 running on a virtual machine ......................................... 106
HP StorageWorks SAN Virtualization Services Platform administrator guide 5