Fantom Drives MGT-08SC08A Installation Reference Manual page 76

ered up altogether at the same time. The power transfer time (lag time) from
the last HDD to the next one can be set within the range of 0.4 to 6.0.
Spin Down Idle HDD (Minutes):
This option is to spin down hard drives after they have been idle for a select-
able amount of time. The setting values are Disabled, 1(For Test), 3, 5, 10, 15,
20,30, 40, 50, and 60.
HDD SMART Status Polling:
The RAID subsystem can read HDD SMART information through this function.
This function is enabled by default.
Disk Write Cache Mode:
The RAID subsystem supports auto, enabled and disabled. When the RAID sub-
system with BBM (battery backup module) the auto option will Enable disk write
cache. Contrariwise, the auto option will Disable disk write cache.
Disk Capacity Truncation Mode:
This RAID subsystem use drive truncation so that drives from differing vendors
are more likely to be able to be used as spares for each other. Drive truncation
slightly decreases the usable capacity of a drive that is used in redundant units.
Multiples Of 10G: If you have 120 GB drives from different vendors; chances
are that the capacity varies slightly. For example, one drive might be 123.5 GB,
and the other 120 GB. This drive Truncation mode Multiples Of 10G uses the
same capacity for both of these drives so that one could replace the other.
Multiples Of 1G: If you have 123 GB drives from different vendors; chances
are that the capacity varies slightly. For example, one drive might be 123.5 GB,
and the other 123.4 GB. This drive Truncation mode Multiples Of 1G uses the
same capacity for both of these drives so that one could replace the other.
No Truncation: It does not truncate the capacity.
MAC Over Two TB:
Use this option to enable volume size over 2TB in MAC machine.
RAID Configuring
3-42