HP StorageWorks Storage Mirroring Full-Server Failover Evaluation Guide (T2558-96331, April 2009)

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Establishing server protection

1. From the Windows desktop, select Start, Programs, Storage Mirroring, Full-Server

Failover Manager.

2. Enter your source and target servers. You can click Browse when selecting either server to

locate it by drilling down through your network. After you have specified a server name, enter

at the bottom of Full-Server Failover Manager updates to display the server’s properties.

3. There are optional protection settings which are not necessary for this evaluation. Feel free to

review the optional settings, if desired. A complete description of each setting can be found in

the Full-Server Failover Guide.

Capacity and free

Space

The target must have enough space to store the data from the source. This

amount of disk space will depend on the applications and data files you are

protecting. The more data you are protecting, the more disk space you will

need. You must also have enough space on the target to process and apply

the system state data.

Full-Server Failover performs several validation checks to determine if

adequate disk space is available. First, the target must have enough free

space on its system volume to hold the entire volume(s) (free and used) from

the source. If this first validation check passes, then no additional checks are

necessary. Otherwise, there must be at least enough free space on the target

system volume to store the system path (including the location of the

Windows files, Program Files, and Documents and Settings) from the source.

If this second validation check passes, then no additional checks are

necessary. If this second validation fails, Full-Server Failover will check to see

if a previous failover may have been attempted. Since Full-Server Failover can

reuse the disk space from a previous failover attempt, it will add the size of

that data to the amount of free space available. If that is enough space for the

failover, the failover will continue. If not, you will either have to select a

different target or delete files on the target to free disk space.

NOTE: The user performing any Full-Server Failover tasks must be a member of both the

Double-Take Admin and local Administrators groups.

Requirement Configuration