Thecus N0503 User Manual

63
Count read/write/verification error, it marks this sector as "reallocated"
and transfers data to a special reserved area (spare area).
This process is also known as remapping and "reallocated" sectors
are called remaps. This is why, on a modern hard disks, you can
not see "bad blocks" while testing the surface - all bad blocks are
hidden in reallocated sectors. However, the more sectors that are
reallocated, the more a decrease (up to 10% or more) can be
noticed in disk read/write speeds.
Current Pending Sector
Current count of unstable sectors (waiting for remapping). The
raw value of this attribute indicates the total number of sectors
waiting for remapping. Later, when some of these sectors are read
successfully, the value is decreased. If errors still occur when
reading sectors, the hard drive will try to restore the data, transfer
it to the reserved disk area (spare area), and mark this sector as
remapped. If this attribute value remains at zero, it indicates that
the quality of the corresponding surface area is low.
Test Type Set short or long time to test.
Test Result Result of the test.
Test Time Total time of the test.
Bad Block Scan
On the Disks Information screen, you may also perform disk bad block scan,
simply to click “Click to start” to start with. The result is only for reference and
system will not take any action from its result.
The testing result will be stay till system reboot with “Yet to start” displayed as
default.
RAID Information
From the Storage menu, choose the RAID item and the RAID Information screen
appears.
This screen lists the RAID volumes currently residing on the Thecus IP storage. From
this screen, you can get information about the status of your RAID volumes, as well
as the capacities allocated for data, and iSCSI. There is also a graph which
represents how the RAID volume is currently allocated.
NOTE
If the Reallocated Sector Count > 32 or Current Pending Sector of a hard disk
drive > 0 , the status of the disk will show “Warning”. This warning is only used
to alert the system administrator that there are bad sectors on the disk, and
they should replace those disks as soon as possible.

Thecus N0503 Specifications

General

RAID levels	0, 10, 1, JBOD, 5, 6
Storage drive size	3.5 \
Storage drive capacity	500 GB
Storage drive interface	Serial ATA
Storage drives installed	Yes
Installed storage drive type	-
Total installed storage capacity	1.5 TB
Maximum supported storage capacity	6 TB
Number of storage drives installed	3
Number of storage drives supported	5
Internal memory	1 GB
Internal memory type	DDR2
Processor family	Intel Atom®
Networking features	Gigabit Ethernet
Compatible operating systems	Windows 7/2000/XP/2003/Vista Mac OSX
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Ethernet LAN (RJ-45) ports	2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	0
Power supply unit (PSU) capacity	96 W
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Product color	Stainless steel
Type	NAS
Device class	Home & Home Office