Drive DX scan on my Hard drive reveals UDMA CRC Error count. What does this mean?

[countfufu]

I scanned my HD with DriveDX and it revealed a "199 UDMA CRC Error Count". There's also an error message saying:

"Total count of errors in data transfer via the interface cable. Each time the error is detected, controller requests a retransmission, thus slowing down the overall transfer speed. Increase of raw value could indicate problem with the power supply or data cable."

Is there anything I should do? Here is the full system report. I've also attached the drive health indicator report:

### SYSTEM INFORMATION ###


Application Name : DriveDx
Application Version : 1.5.1.530
Application SubBuild : 0
Application Edition : Standalone
Application Website : https://binaryfruit.com/drivedx
DriveDx Knowledge Base Revision : 6/6


Computer Model : MacBookPro8,1


OS Name : macOS
OS Version : 10.10.5
OS Build : 14F2109
OS Kernel Version : Darwin 14.5.0

SAT SMART Driver Version : N/A
ATA Command Support Tolerance : verypermissive
N of drives with S.M.A.R.T support : 1



### DRIVE 1 OF 1 ###
Last Checked : May 1, 2017 4:58:42 PM EDT
Last Checked (ISO 8601 format) : 2017-05-01T16:58:42

Advanced SMART Status : OK
Overall Health Rating : AVERAGE 52.7%
Overall Performance Rating : AVERAGE 52.7%
Issues found : 1


Volumes : Macintosh HD
Device Path : /dev/disk0
Total Capacity : 1.0 TB (1,000,204,886,016 Bytes)
Model Family : HGST Travelstar 7K1000
Model : HGST HTS721010A9E630
Form Factor : 2.5 inches
Firmware Version : JB0OA3J0
Drive Type : HDD 7200 rpm

Power On Time : 9,648 hours (13 months 12 days 0 hours)
Power Cycles Count : 643
Current Power Cycle Time : 0.7 hours



=== DEVICE CAPABILITIES ===
S.M.A.R.T. support enabled : yes
DriveDx Active Diagnostic Config : Base config [hdd.default]
Sector Logical Size : 512
Sector Physical Size : 4096
Physical Interconnect : SATA
Removable : no
Ejectable : no
ATA Version : ATA8-ACS T13/1699-D revision 6
SATA Version : SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
Bay # : 1
I/O Path :
Attributes Data Structure Revision : 16
SMART Command Transport (SCT) flags : 0x3d
SCT Status supported : yes
SCT Feature Control supported : yes
SCT Data Table supported : yes
Error logging capabilities : 0x1
Self-tests supported : yes
Offline Data Collection capabilities : 0x5b
Offline Data Collection status : 0x0
Auto Offline Data Collection flags : 0x0
[Known device ]: yes
[Drive State Flags ]: 0x40000100
[Last State Change Timestamp ]: 2017-05-01T16:21:43
[Last State Change Flags ]: 0x40000100
[Last State Change Diff Flags ]: 0x400


=== CURRENT POWER CYCLE STATISTICS ===
Data Read : 3.3 GB
Data Written : 1.8 GB
Data Read/Write Ratio : 1.87
Average Throughput (Read) : 2.0 MB/s
Average Throughput (Write) : 1.7 MB/s

Operations (Read) : 133,275
Operations (Write) : 41,345
Operations Read/Write Ratio : 3
Throughput per operation (Read) : 26.3 KB/Op
Throughput per operation (Write) : 45.4 KB/Op

Latency Time (Read) : 0 ns
Latency Time (Write) : 0 ns
Retries (Read) : 0
Retries (Write) : 0
Errors (Read) : 0
Errors (Write) : 0


=== PROBLEMS SUMMARY ===
Failed Indicators (life-span / pre-fail) : 0 (0 / 0)
Failing Indicators (life-span / pre-fail) : 0 (0 / 0)
Warnings (life-span / pre-fail) : 1 (1 / 0)
Recently failed Self-tests (Short / Full) : 0 (0 / 0)
I/O Errors Count : 0 (0 / 0)
Time in Under temperature : 0 minutes
Time in Over temperature : 0 minutes


=== IMPORTANT HEALTH INDICATORS ===
ID NAME RAW VALUE STATUS
5 Reallocated Sector Count 0 100% OK
197 Current Pending Sectors Count 0 100% OK
198 Offline Uncorrectable Sector Count 0 100% OK
199 UDMA CRC Error Count 768 100% Warning


=== TEMPERATURE INFORMATION (CELSIUS) ===
Current Temperature : 35
Power Cycle Min Temperature : 21
Power Cycle Max Temperature : 35
Lifetime Min Temperature : 15
Lifetime Max Temperature : 47
Recommended Min Temperature : 0
Recommended Max Temperature : 60
Temperature Min Limit : -40
Temperature Max Limit : 65




=== DRIVE ERROR LOG ===
# | TIME OCCURRED | ERRORS | PRIOR COMMAND
5 9644 hours UNKNOWN ERROR READ FPDMA QUEUED
4 9633 hours UNKNOWN ERROR READ FPDMA QUEUED
3 9625 hours UNKNOWN ERROR READ FPDMA QUEUED
2 9625 hours UNKNOWN ERROR READ FPDMA QUEUED
1 9620 hours UNKNOWN ERROR READ FPDMA QUEUED


=== DRIVE SELF-TEST LOG ===
# | LIFETIME (H) | TEST TYPE | PROGRESS | STATUS | LBA of 1st error
1 9648 Short offline 100% Completed without error -
2 9359 Short offline 100% Completed without error -

View attachment DRIVE HEALTH INDICATORS.txt

 

[harryb2448]

With 52.7% Overall Health Rating I would be very concerned the drive is on the way out, together with errors listed in the report. Make sure you always have a current backup.

What to do about it? Boot into Recovery, go to Utilities and run Repair Disk and see what is rep[orted. One could always purchase utilities such as DiskWarrior, but at $120 think the money is better spent towards an SSD hard drive. An SSD will give your 2011 MBP a tremendous boost and for mine I would go with an OWC, Crucial or OCZ drive of 512GB.

 

[Rod]

Clone it first, it will make transition easy.

 

[countfufu]

With 52.7% Overall Health Rating I would be very concerned the drive is on the way out, together with errors listed in the report. Make sure you always have a current backup.

What to do about it? Boot into Recovery, go to Utilities and run Repair Disk and see what is rep[orted. One could always purchase utilities such as DiskWarrior, but at $120 think the money is better spent towards an SSD hard drive. An SSD will give your 2011 MBP a tremendous boost and for mine I would go with an OWC, Crucial or OCZ drive of 512GB.

How long before it completely dies? Should I replace the data cable as well?

 

[Rod]

That's a "how long is a piece of string?" question. There is no way to predict how long any hard drive will last before it dies irrevocably. Suffice to say that you (unlike some) have an indicator which suggests that it may be soon. Many people have no warning at all. As for the data cable, it should be fine but you will never have a better opportunity to replace it. Others may have an opinion on that.

Anecdotally, my wife replaced her 500Gb HDD in her 2011 MBP with a 500Gb SSD and it has improved performance markedly despite only having 4Gb RAM running macOS Sierra.