Data Protection
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Titan SiliconServer
Block Replication Minimum
File Size
Block replication minimum file size controls the minimum file
size that is used for block replication. For instance, if this
option is set to 64 MB and the source data file is 63 MB and the
system determines only 1 MB of the source file has changed,
then the entire source file (63MB) will be replicated. In
contrast if the source file is 65 MB and only a small portion of
that 65 MB file has changed, then only the delta will be
replicated. This option is only functional if the Incremental-
Block license is present.
The drop down list options available are: 256 K, 512 K, 1, 2, 4,
8, 16, 32, 64 or 128 MB
Use Changed Directory List
Indicates if incremental backups or replications will use a
changed object list to direct the search for changed files. If the
process was not use the changed object list, it will have to
search the entire directory tree looking for changed files. When
using the changed object list, the search only passes through
those directories that contain changed files.
Note: Using the change object list is likely to improve
performance in some cases, such as situations where
there are sparse changes. However it could also make
performance worse in other cases where there are
many changes throughout the directory structure).
Number of Read Ahead
Processes
This option controls the number of read-ahead processes used
when reading directory entries during a replication. The
default read-ahead values will usually be suitable for most
replications. However, where the file system is made up of
many small files, the amount of time spent reading directory
entries increases proportionately. In these cases, adding
additional processes may speed up the replication operation.
Note: Each additional read-ahead process takes up
system resources, so it is best to limit the number of
additional processes unless it makes a significant
difference in performance.
Содержание Titan SiliconServer
Страница 1: ...Titan SiliconServer System Administration Manual ...
Страница 12: ...Table of Contents xii Titan SiliconServer ...
Страница 308: ...File Services 296 Titan SiliconServer 4 Click OK To access available iSCSI Targets 1 Click on the Available Targets tab ...
Страница 411: ...Status Monitoring 399 Titan SiliconServer 3 Click details ...