Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Issue

When copying data from my external HDD (My Book USB 3.0 3TB) the read speed barely goes over 1 MB/s most of the time it stays at around 500 KB/s. I'm using a USB 3.0 cable. I have tested copying data to and from another HDD in a USB 3.0 cabinet and transfer speeds are normal for that disk.

Anyone have any suggestions to what the issue may be with the My Book external drive and what I can do to solve it?

Hardware info

HD Tune Pro: WD      My Book 1140 Information

Firmware version : 80.00A80
Serial number    : WD-WMC1T0651529
Capacity         : 3000.5 gB (2794.4 GB)
Buffer size      : n/a
Sector size      : 4096 bytes
Standard         : SATA 3 (6.0 Gb/s)
Supported mode   : UDMA Mode 6
Current mode     : UDMA Mode 7
Avergae speed    : 114 MB/s
Rotation speed   : -

S.M.A.R.T                    : yes
48-bit Address               : yes
Read Look-Ahead              : yes
Write Cache                  : yes
Host Protected Area          : yes
Device Configuration Overlay : yes
Firmware Upgradable          : yes
Automatic Acoustic Management: no
Power Management             : yes
Advanced Power Management    : no
Interface Power Management   : yes
Power-up in Standby          : yes
Security Mode                : yes
SCT Tables                   : yes
Native Command Queuing (NCQ) : yes
Trim                         : no

Volume        : My Book (F:)
Capacity      : 2861554 MB
Free          : 2335414 MB
Usage         : 18%
File system   : NTFS
Serial        : B89C-9B8D
Alignment     : 1 MB

Health

HD Tune Pro: WD      My Book 1140 Health

ID                              Current  Worst    ThresholdData     Status   
(01) Raw Read Error Rate        200      200      51       36       ok       
(03) Spin Up Time               202      179      21       4900     ok       
(04) Start/Stop Count           100      100      0        299      ok       
(05) Reallocated Sector Count   200      200      140      0        ok       
(07) Seek Error Rate            200      200      0        0        ok       
(09) Power On Hours Count       100      100      0        103      ok       
(0A) Spin Retry Count           100      100      0        0        ok       
(0B) Calibration Retry Count    100      100      0        0        ok       
(0C) Power Cycle Count          100      100      0        299      ok       
(C0) Unsafe Shutdown Count      200      200      0        274      ok       
(C1) Load Cycle Count           200      200      0        607      ok       
(C2) Temperature                111      106      0        39       ok       
(C4) Reallocated Event Count    200      200      0        0        ok       
(C5) Current Pending Sector     200      200      0        7        warning
(C6) Offline Uncorrectable      100      253      0        0        ok       
(C7) Interface CRC Error Count  200      200      0        0        ok       
(C8) Write Error Rate           100      253      0        0        ok       

Health Status         : warning
share|improve this question
2  
A non-zero Current Pending Sector value is NOT GOOD. That means a read error on the disk, one which the disk intents to correct once it succeeds in reading the data. (Even if it has to try a lot of times, effectively dropping throughput speed to zero while keeping the disk 100% busy). I am skipping a full answer post since there are already similar questions and good answers on this topic. You can locate them with the [search box] in the right upper corner. –  Hennes Sep 29 '13 at 13:22

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.