HP StorageWorks Storage Mirroring Recover Scripting Guide (T5437-96009, November 2009)

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Server Setting Description
QJournalSpaceMax
The maximum amount of disk space, in MB, in the
specified QJournalDir that can be used for Storage
Mirroring Recover queuing. When this limit is reached,
Storage Mirroring Recover will automatically begin the
auto-disconnect process.
Values: dependent on the amount of physical disk space
available
Default: Unlimited
GUI Setting: Server Properties, Queue tab, Memory and
Disk Usage, Maximum disk space for queue
The unlimited setting allows the disk queue usage to
automatically expand whenever the available disk space
expands. Setting this option to zero (0) disables disk
queuing. Even if you are using the Unlimited option,
Storage Mirroring Recover will only store 16,384 log files.
If you are using the default 5MB file size, this is
approximately 80GB of data. If you anticipate needing to
be able to queue more data than this, you should increase
the size of the log files.
QLogWriteThrough
Specifies if the disk queues are write-through mode
Values: 0 Disk queues are not write-through mode, 1 Disk
queues are write-through mode
Default: 0
GUI Setting: None
While write-through mode may decrease the frequency of
auto-disconnects, it may also decrease the performance of
the source server.
QMemoryBufferMax
The amount of Windows system memory, in MB, that,
when exceeded, will trigger queuing to disk.
Values: dependent on the amount of physical memory
available; minimum of 32 MB
Default: 128 or 512 MB, depending on your operating
system
GUI Setting: Server Properties, Queue tab, Memory and