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WEB BROWSER-BASED CONFIGURATION
drive from the array during this period. Default value is manu-
facture setting. You can select between 5, 6 and 7 second.
This feature is used to setup the HDD internal timeout value.
• Timeout Setting
Disk time-out is a registry setting that defines the time that
RAID controller will wait for a hard disk to respond to a com-
mand. You can modify the retry value by entering a new value
in the edit box beside this button and then selecting the but-
ton. Normally you should not need to modify this value. De-
fault value is 8 seconds: You can select between 3~8 second.
• Number of Retries
This setting determines the number of access that will be at-
tempted before the current command from the RAID control-
ler to the disk drive is aborted. You can modify the retry value
by entering a new value in the edit box beside this button and
then selecting the button. Normally you should not need to
modify this value. There are two selections, either 2 retry or 3
retry.
• Buffer Threshold
This new feature there are 3 options; 25%, 50%, 75%. The
percentage represents how much data should be kept in
resident cache memory (how full cache should get) before
controller starts to flush data onto the hard drives. If the buf
-
fer is set for 25%, then all 25% will be cached and is used for
writing data. The remaining cache memory will be used for
reading and other system overhead. Write buffer threshold for
5% is added for video recording. This option will push data to
disk early.
This feature gives controller extra buffer time in case of slow
response from the hard drives within a given time. Conse-
quently, this can prevent a pause in data flow and there will
be continued data access and stream. This feature is very
useful for the video streaming applications where there is high
demand for constant non-stop data flow with no interruption
due to lower performance of specific hardware.
