Thecus N8900 series User Manual page 67

We are strongly recommended copying the RAID volume encryption key to a
safe place. You can find the encryption key file from the USB disk in the
following format:
(RAID volume created date)_xxxxxx.key
WARNING
NOTE
RAID volumes with encryption enabled will be displayed with a key lock
symbol next to volume ID name.
6. Quick RAID — Enabled the quick RAID setting is going to enhance RAID
creation time.
We recommend is "Quick RAID" setting is going to be used, only if hard disk
NOTE
is brand new or it has no existed partitions contained.
7. Specify a stripe size — 64K is the default setting.
8. Selected the file system you like to have for this RAID volume. The selection
is available from ext3, XFS and ext4.
Please keep USB disk in a safe place and also backup the encrypted key.
There is no way to rescue data back if the key
is lost.
With RAID volume encryption enabled, the system performance will goes
down.
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