HighPoint RocketRAID 3510 - Manual (Page 28)

RocketRAID 3xxx BIOS Utility
3-5
Note: Multiple arrays can be created using the same set of hard disk drives. The
Capacity option allows you to set aside disk space that be used to create another
array, set as a spare disk, or partitioned to act as a single disk (by the operating
system).
8. To complete the creation procedure, use the
↓ arrow key to highlight the Start
Creation item and press ENTER. Press the Y (yes) key to create the array, or N
(no) key to cancel the creation process.
9. cache policy: If you are creating RAID 5 or RAID6, you will be asked to specify a
cache policy.
Write-back - When a cache is operating in write-back mode, data written into the
cache is not immediately written out to its destination in secondary storage unless
the heuristics governing the flushing of dirty data demands otherwise. This meth-
odology can improve the efficiency of write operations under favorable
circumstances. However, its use can potentially lead to incoherences in a system
that is not protected from power fluctuations or other failures.
Write-through - When a cache is operating in write-through mode, data written
into the cache is also written to the destination secondary storage devices.
Essentially write completion does not occur until the data is written to secondary
storage. Thus the contents of the cache and the secondary storage are always
consistent. The advantage is that the possibility of data corruption is greatly
reduced. The disadvantage is that write-through operations are more time
consuming.
10. Sector Size (VSS): Variable Sector Size (VSS) for over 2TB support in 32bit LBA OS.
It changes the sector size from default 512 Bytes to 4k Bytes, the maximum volume
capacity up to 16TB. This option works under Windows platform only. And it CAN
NOT be converted to Dynamic Disk, because 4k sector size is not a standard format.
Note: The VSS can not support bootable array and Change Sector Size.