Go to documentation repository
Page History
General information about the file system
Fragmented files accumulate over time in the Windows file system. This is due to the fact that the operating system sequentially fills the free disk space when writing files.
Free disk space, which appears when old files are deleted, can be located in different parts of the disk; therefore, each file can be split into many fragments. When reading or writing such a file, the hard drive head must constantly move, which reduces the read/write speed and causes mechanical wear of the discdisk.
AxxonSoft has developed its own file SolidStore file system SolidStore especially specifically for storing video archives. The system is installed on a blank physical or logical drivedisk, which is fully allocated to Axxon One video archive (see see Creating archives). In When developing SolidStore, it was taken into account that recording will only be sequenced takes place in one direction (looping modein a loop), and the newest data is written in place of the oldest data.
| Note | ||
|---|---|---|
| ||
Loop recording (FIFO overwriting) must erase generally deletes the earliest recordings, but in some cases selected recordings within 10% of the oldest ones can be compromiseddeleted. This feature protects archive volumes from fragmentation. In such cases, these earliest 10% of videos in archive can have gaps.can be gaps near the beginning of the archive when viewing the recordings. |
Features of SolidStore file system
By optimizing the reading/writing process, we managed to minimize the travel movement of the hard disk head along its surface and to achieve three important advantages:
- Enable
- achieve high read/write speeds, approaching the physical access speed limit of the hard disk .
- ; Increase
- increase the service life of the hard disk .
- ; Solve
- solve the problem of data fragmentation: as data is written only in looping mode
- a loop, fragmentation is minimal and does not
- doesn't accumulate with time. This way,
- ensures that the read/write speed remains high throughout the operation of the video surveillance system.
SolidStore relieves the user from the need to periodically stop the video surveillance system and run the Disk Defragmenter tool. This significantly increases video surveillance uptime, and the protected facilities remain under the watchful eyes of the security personnelfacility remains protected at all times.
If it is not possible to allocate a separate disk for Axxon One video archive, it this archive can be written as a regular file in the existing Windows OS file system.
Overview
Content Tools