Canon C50FSi Network Video Recorder VK-64/VK-16 Administrator's Manual - Page 67

Disk Space Management Limit Level Calculation Method The Limit Level occurs when the Storage Server fulfills the condition 1) or 2) below. 1) When the Storage Server disk space used exceeds the following value: Maximum disk space used 2) A When free disk space falls below the following value: (Number of Camera Servers + 1) x 32MB Calculation Example for Each Level Disk Drive C Drive D Drive Disk Capacity 100GB 200GB Free Disk Space 50GB 200GB Max. Disk Space Used 40GB 200GB Camera Server No. 19 units 19 units The following is a table of values for each level calculated based on the examples above. Disk Drive Low Disk Warning Level Threshold Level Limit Level C Drive D Drive 1) 40GB x (100-10) / 100=36GB 2) 100GB x 10 / 100=10GB 1) 40GB-96MB=39.904GB 1) 40GB 2) (19+1) x 32MB+96MB=736MB 2) (19+1) x 32MB=640MB 1) 200GB x (100-10) / 100=180GB 1) 200GB-96MB=199.904GB 1) 200GB 2) 200GB x 10 / 100=20GB 2) (19+1) x 32MB+96MB=736MB 2) (19+1) x 32MB=640MB "Threshold Level" can be used as a protective level to avoid achieving "Limit Level". It is recommended that you take Note measures when "Low Disk Space Warning Level" event notification is generated, such as deleting unnecessary video files. Storing video data above the Threshold Level increases load over the Storage Server and may cause recording interruption. It is strongly recommended to use the Storage Server below the Threshold Level. Refer to "Operation Guideline for Recording and Viewing" (➝ P. 223) for detailed of operation. If e-mail notification for each levels are set, the system can be configured to provide e-mail notifications when one of these levels is reached (➝ P. 70). The requirements of "Threshold Level" may be achieved before the requirements of "Low Disk Space Warning Level" are satisfied, depending on circumstances. For example, large numbers of cameras with limited disk capacity may bring a larger value for "(Numbers of camera +1) x 32 MB + 96 MB", compared with the value of "Disk capacity x Low disk space warning level/100". Storage Server Configuration Reference 3 67