HP Storage Mirroring V5 Software User Manual
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PreFailoverWait
Specifies whether or not to wait for the pre-failover script to complete before finishing a failover
Values:
(
0
) Do not wait
(
1
) Wait
Default:
0
PriorityClass
The priority level at which the daemon runs.
Values:
2
Default:
2
ProductCode
Used by the Storage Mirroring installation program to maintain the installation settings for an
upgrade
QJournalDir
The location where the queue is stored.
Values:
any valid path
Default:
the location specified during the installation
This location also stores the Storage Mirroring driver pagefile.
QJournalFileSize
The size, in MB, of each queuing transaction log file.
Values:
any valid file size, up to 4095 MB
Default:
5
QJournalFreeSpace
Min
The minimum amount of disk space, in MB, in the specified
QJournalDir
that must be available
at all times.
Values:
dependent on the amount of physical disk space available
Default:
50
The QJournalFreeSpaceMin should be less than the amount of physical disk space minus
QJournalSpaceMax
.
QJournalPreload
The number of operations being pulled from the disk queue at one time. Do not modify this
setting.
QJournalSpaceMax
The maximum amount of disk space, in MB, in the specified
QJournalDir
that can be used for
Storage Mirroring queuing. When this limit is reached, Storage Mirroring will automatically begin
the auto-disconnect process.
Values:
dependent on the amount of physical disk space available
Default:
Unlimited (equivalent to 4,294,967,295 MB)
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.
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
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 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 MB
QueueSizeAlert
Threshold
The percentage of the queue that must be in use to trigger an alert message in the Linux system
log.
Values: any valid percentage
Default:
50
Program Setting
Description