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DV Mode
This mode is specifically designed for video applications. The default firmware
cache
policy provides balanced performance for standard applications such as workstations,
file servers, and web servers. But for DV mode, a special cache firmware is implemented
specifically for large sequential writing (large I/O requests such as video files). Enabling
DV mode will maintain the performance and consistency of transferring and processing
video files.
There are several factors concerning DV mode to take note:
DV mode only available for RAID 0, 5, and 6
Only 1 RAID array you created can enable DV mode
DV mode only works when array status is normal
Margin
[5% - 25%]
When DV mode is enabled, you have the option to set the margin.
This percentage represents the amount of space the designated cache will hold before
flushing the data onto the drive. Increasing the margin % will result in more stable
performance, but decrease the maximum write performance.
Alternatively, you can change the margin anytime in Logical > Maintenance for DV
enabled array.
