Storage Mirroring User Guide

14 - 18
MaxDriverPagefile
Size
Specifies the amount of disk space, in MB, to use for Storage Mirroring driver paging
Values: 64-4095
Default:
256
The Storage Mirroring driver pagefile is located in the directory specified by QJournalDir.
MaxLogFileSize Maximum size, in bytes, of any .dtl log file
Values: limited by available disk space
Default:
1048576
MaxLogPathname The maximum length of a file name (the entire volume\directory\filename including slashes,
spaces, periods, extensions, and so on) that will be displayed in the Storage Mirroring log file and
the Windows Event Viewer. File names longer than the MaxDisplayablePath will be truncated and
will be followed by an ellipsis (...).
Values:
1-32760
Default:
32760
MaxNumberofLog
Files
Maximum number of .dtl log files that can exist at one time. When Storage Mirroring creates a
new .dtl file, if this number is exceeded, the oldest .dtl file is deleted.
Values:
1 - 999
Default: 5
MaxRemoveOrphans
OpSize
Determines whether or not Storage Mirroring will send over multiple remove orphan operations.
Storage Mirroring will send over the operations if a directory has more files than this number.
Values: 0 - 131072
Default : 1000
MaxRetry A generic, application wide setting specifiying the number of retry attempts for processes such as
creating sockets, starting the service, and so on
Values: any integer
Default:
5
MaxWriteChunkSize Maximium merged op size (in bytes) used during replication
Values: 1 - 131072
Default: 65536 (64K)
MCHelpPath The path and file name to the Management Console online help file
Default: c:\Program Files\OpenView\Storage Mirroring\online help\mc\ wwhelp.htm
Do not change this value or the online help will not work.
MemoryAllocator
CallbackMode
Determines what action is taken when the MemoryQueueToDiskThreshold is met
Values:
(
0) Auto-disconnect—Auto-disconnect processing is initiated when the
MemoryQueueToDiskThreshold has been met. Connections will be reestablished when
auto-reconnect occurs.
(
1) Pause—The Storage Mirroring service stops pulling operations from the driver when the
MemoryQueue ToDiskThreshold has been met. The target will pause the source. The service will
resume pulling operations when the target tells the source to resume.
(
2) Queue—The source and target begin queuing operations to disk.
Default:
2
MemoryQueueToDisk
Threshold
A percentage of QmemoryBufferMax that will trigger queueing to disk.
Values: any valid percentage
Default: 100
Program Setting Description