Specifications

8 – Configuring Points
174 R400
8 Under Disk Limit, enter the minimum free disk space that must be available
for this archiving job to run. This prevents all of the free disk space on the
server from being used for history archive files. (If the disk becomes full,
system performance will be severely degraded.)
The Disk Free limit is a system wide limit used by all history archive reports.
(For more information on disk space see “Determining Space Requirements
for a History Archive” on page 172.)
Separate History Archive Reports are usually configured for each history interval.
Removing History Archives
You can move history archives from the default history archive folder. You may
want to do this if you disk becomes full.
Considerations:
• Moving history archives has implications for trend sets. If a trend set
requires data from an archive that has been moved, you need to restore the
archive. (The archive should be restored to a folder other than the default
history archive folder. Use the PlantScape Server Control Panel to specify
additional folders to read archives from.)
• If you specify a network path to access archives that have been moved, this
can affect system performance.
• If you delete history archives, you cannot include samples from the archive
in trend sets.
To remove history archives:
1 On the History Archiving display, select the required archive management
option for each history type. The options you can select are Retain, Move, or
Delete.
2 If you select Move or Delete, specify the number of days until the archive is
moved or deleted. If you specify 0 the archives are not moved or deleted.
plscpcg.book Page 174 Monday, May 28, 2001 10:11 AM