Loop - Pentek Talon RTX 2767 Operating Manual

Page 38
6.2 Record Channel Controls (continued)
6.2.6
Rev.: 1.0

Loop

The Record screen offers a Loop recording option (checkbox). Loop record−
ing is the process of recording continuously to disk in a looped manner. If
you want to define the portion of the disk to use for the loop recording, set
the transfer length or time. Alternately, you can choose to not set a transfer
length or time, allowing the system to fill the disk in a looped manner.
In both cases, the recorder will fill the file with data. Once full, the recorder
will reset the file pointer to the beginning and continue to write data. It will
repeatedly do this until you manually stop the looped recording.
The file header contains information about where the oldest and newest
data resides. The timestamp that is associated with the first sample accu−
rately represents the oldest data in the recorded file.
NOTE:
Loop recording is not recommended for systems with solid state
drives (SSDs) because SSDs have a limited number of write life
cycles (about 3000 writes per flash cell). The extensive use of
looped recording in a Talon system built with SSDs can lead to the
early wear of the storage drives, resulting in poor performance.
The Loop box is toggled between checked and unchecked by clicking on it
with the mouse:
• If the Loop box is checked, the system will perform loop recording.
• If the Loop box is unchecked, the file will be recorded for the requested
amount of time or length and then recording will stop.
Loop must be selected before starting to record. If the Loop box is checked
and then recording begins, it cannot be unchecked during recording, and
vice−versa.
Talon RTX 2767 Operating Manual