Canon RM-9 V1.0 Network Video Recording Software RM-Lite Ver.1.0 Administrator - Page 81

Action When the Threshold Level is Reached, Action When the Limit is Reached

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Disk Space Management (Important) „ Action When the Threshold Level is Reached Recording continues, however, the Storage Server starts deleting recording files, beginning with old files, and issues an event. Value for [Maximum Disk Space Used] Threshold level Delete oldest first „ Action When the Limit is Reached The Storage Server stops recording and issues an event when the free disk space drops to this level. The Storage Server resumes recording and issues an event when the free disk space increases above this level after deleting recording files. Value for [Maximum Disk Space Used] Delete Delete oldest first oldest first Note Limit level 7 Operation and Management • Recording files are deleted, even if they have not reached the [Maximum Storage Period]. However, if the oldest file is currently in use by the Viewer (for example for playback of recorded video), it will not be deleted and the next oldest file will be deleted instead. Deletion continues sequentially until the free disk space exceeds the threshold again. For details on saving files, see Chapter 8. • Normally, a recording file for which the minimum storage period has not elapsed is excluded from deletion. Note that such files are also deleted if the free disk space cannot reach and exceed the threshold value by deleting all the other files. Limit Level Conditions and Calculation Method The limit level is considered reached when the amount of free disk space drops below 64 MB. This level is fixed. Important • The threshold level is to protect against reaching the limit level. We recommend that you take appropriate measures, such as deleting unnecessary recording data, when the event for the low remaining disk space notification level occurs. Threshold Level Conditions and Calculation Method The threshold level is considered reached when the amount of free disk space drops below the following level. (Number of cameras + 1) x 64 MB • Storing recordings that cause the threshold level to be exceeded increases the load on the Storage Server and may cause recording to be interrupt, resulting in incomplete recordings. We strongly recommend that you operate the Storage Server at below the threshold level. • Note that the threshold level conditions may be met before the low remaining disk space notification level conditions are satisfied, depending on the circumstances. For example, a large number of cameras with limited disk capacity may cause a value for (Numbers of cameras +1) x 64 MB to be larger than the value of disk capacity x low free disk space notification setting/100. 7-5

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Disk
S
pace Management (Important)
7
-5
Operation and Management
7
Action When the Threshold Level is Reached
Recording continues, however, the Storage Server starts
deleting recording files, beginning with old files, and
issues an event.
Note
•
Recording files are deleted, even if they have not reached the
[Maximum Storage Period]. However, if the oldest file is
currently in use by the Viewer (for example for playback of
recorded video), it will not be deleted and the next oldest file
will be deleted instead. Deletion continues sequentially until
the free disk space exceeds the threshold again. For details on
saving files, see Chapter 8.
•
Normally, a recording file for which the minimum storage
period has not elapsed is excluded from deletion. Note that
such files are also deleted if the free disk space cannot reach
and exceed the threshold value by deleting all the other files.
Threshold Level Conditions and Calculation Method
The threshold level is considered reached when the
amount of free disk space drops below the following level.
(Number of cameras + 1) x 64 MB
Action When the Limit is Reached
The Storage Server stops recording and issues an event
when the free disk space drops to this level.
The Storage Server resumes recording and issues an
event when the free disk space increases above this level
after deleting recording files.
Limit Level Conditions and Calculation Method
The limit level is considered reached when the amount of
free disk space drops below 64 MB. This level is fixed.
Value for
[Maximum
Disk
S
pace
Used]
Threshold
level
Delete
oldest first
Important
•
The threshold level is to protect against reaching the limit
level. We recommend that you take appropriate measures,
such as deleting unnecessary recording data, when the
event for the low remaining disk space notification level
occurs.
•
Storing recordings that cause the threshold level to be
exceeded increases the load on the Storage Server and may
cause recording to be interrupt, resulting in incomplete
recordings. We strongly recommend that you operate the
Storage Server at below the threshold level.
•
Note that the threshold level conditions may be met before
the low remaining disk space notification level conditions are
satisfied, depending on the circumstances. For example, a
large number of cameras with limited disk capacity may
cause a value for (Numbers of cameras +1) x 64 MB to be
larger than the value of disk capacity x low free disk space
notification setting/100.
Value for
[Maximum
Disk
S
pace
Used]
Delete
oldest first
Delete
oldest first
Limit level