D-Link DSN-6020 User Manual page 56

Usage
Vendor
Serial
Type
Write cache
Standby
Readahead
Command
queuing
PD operation description:
•
Set Free disk
Set Global
spare
"Failed"  the hard drive is failed.

"Error Alert"  S.M.A.R.T. error alert.

"Read Errors"  the hard drive has unrecoverable read

errors.
The usage of hard drive:
"RAID disk"  This hard drive has been set to

RAID group.
"Free disk"  This hard drive is free for use.

"Dedicated spare"  This hard drive has been set as

dedicated spare of a RG.
"Global spare"  This hard drive has been set as

global spare of all RGs.
Hard drive vendor.
Hard drive serial number.
Hard drive type:
"SATA"  SATA disk.

"SATA2"  SATA II disk.

"SAS"  SAS disk.

Hard drive write cache is enabled or disabled. Default is
"Enabled".
HDD auto spin-down to save power. Default is "Disabled".
This feature makes data be loaded to disk's buffer in advance for
further use. Default is "Enabled".
Newer SATA and most SCSI disks can queue multiple commands
and handle one by one. Default is "Enabled".
Make the selected hard drive be free for use.
Set the selected hard drive to global spare of all RGs.
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