HP StorageWorks Storage Mirroring Scripting Guide (T2558-96327, April 2009)

15 - 30
TGCloseDelay The length of time, in milliseconds, a file is held open on the target
Values: 0 - 2000
Default: 1000
GUI Setting: None
If disk caching on the target is disabled either manually or by default (for
example, by default on disks that host Active Directory database files), the
target system may be slow during a mirror. If so, descreasing this setting to
100, 10, and 0 will result in incremental improvements, with 0 returning the
system performance to normal.
TGDaysToKeep
MovedFiles
Specifies the length of time, in days, to keep moved files if
TGMoveFilesOnDelete is enabled
Values: any valid integer
Default:
0
GUI Setting: Server Properties, Target tab, Move Deleted Files, Remove
after the following number of days
TGDisableAttribute
Replication
Specifies whether or not the attributes compression, ACL, and file mask are
written to the target during mirroring and replication
Values: 0 Enable attribute replication
1 Disable attribute replication
Default: 0
GUI Setting: None
TGExecutionRetry
Limit
The number of times an unfinished operation will be retried on the target
before it is discarded. If this value is set to zero (
0), an operation will never
be discarded and will be retried on the target until it is applied.
Values: 0 - 65536
Default: 0
GUI Setting: None
TGFileAlloc Indicates that Storage Mirroring allocates an entire file on the first write of a
mirror operation
Values:
0 Disabled
1 Enabled
Default:
1
GUI Setting: None
To help eliminate file fragmentation on the target server, Storage Mirroring
should allocate the entire file first. With extremely large files, the file
allocation may take a long time. Therefore, you may want to disable the file
allocation. If you disable file allocation, you will have more fragmentation on
the target disk.
TGMirrorCapacity
High
Maximum percentage of system memory that can contain mirror data before
the target signals the source to pause the sending of mirror operations.
Values:
2-75
Default: 20
GUI Setting: Server Properties, Target tab, Files, Target Mirror Capacity
High Percentage
Server Setting Description