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WD Caviar Black (2tb) Reliability rate? - Page 2

post #11 of 16
I am considering the option of RMA my Caviar Blue. Already twice I have caught it did something weird when there is no HDD activity (ended up need to power off the PC then turn it back on). One more time and it is out.
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Misaka
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post #12 of 16
Quote:
Originally Posted by marktheharp View Post

Now (Jan 2012) I am noticing both drives are starting to get errors again. HD tune pro reports 7 current pending sectors and a UDMA CRC error count of 2428, and on the other disk 3 current pending sectors.

So your mileage may vary but my experience isn't that great with these disks.

UDMA CRC error count indicates bad SATA cables usually. You may want to look into replacing yours. I've had brand new cables be bad from the factory. mad.gif

You may also want to look into your power supply and HDD mounts. While it's possible that you're getting duds over and over, it's more likely that something is harming the drives. So far the only WD drives that I've ever had to RMA were drives not mounted on rubber grommets. (more vibrations reach them) All of my WD drives that died were in the same computer. (same PSU) The dozen or so WD drives in other computers are fine.

I haven't yet pegged what specifically killed the drives, but in my case it seems to have been computer specific.
     
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post #13 of 16
Kramy, thank you - good suggestion. I believe you are right also about it being computer-specific and related to cables and mounting as I've been pretty careless (shame on me!) on both counts.

Unfortunately one of my 2TB drives is now exhibiting seek times of betwe 1200mS+ (ie, 1.2 seconds!) and I'm pretty sure that's down to it simply not rotating very fast - it doesn't sound like it normally does and when I boot windows it comes up wanting to scan the disk. I did that once and then bailed out after it came up with thousands and thousands of unreadable / corrupted messages (can't remember the exact text). However, the disk does (after about 4 seconds) display all its files and folders. I'm positive this is down to careless physical mounting and possibly temperature issues so I'm currently getting as much data off it as I can before it meets its maker.

Thanks again for your suggestions and sorry not to have replied earlier.

EDIT: my transfer speed seems to vary between 10mbps and 59b (yes really!) per sec (which is the lowest I've ever seen a computer display when copying files)!. A bummer as I have about 800GB to transfer off it!!!
Edited by marktheharp - 2/20/12 at 4:55am
post #14 of 16
Ack. Either that drive is dying, or you have yet more cable issues.

I got a WD 2TB Green a year or so back. I plugged it in, and was shocked to find it benching at 2.5MB/sec. I replaced its SATA cable and then it performed at around 120MB/sec. (max) Much better. smile.gif Of course by then it had 300 UDMA CRC errors - that SMART stat never resets, so now I have a reminder to check my cables. thumb.gif

I had another drive that had performance drop to abysmal levels - but the SATA cable was starting to come lose, and I think one pin on one side of the cable wasn't quite making contact. Shoving on it a little bit to straighten it solved that one.
Edited by Kramy - 2/20/12 at 4:58am
     
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post #15 of 16
@kramy Yikes indeed! I will go and get a new SATA cable and see if that helps. However, about to replace the whole thing with a new system, but keeping the drives (well, those that work).

Running HDTunePro on my drive and currently it's giving seek times in three "bands" of 3500mS (about 10%) 1750mS (about 80%) and the rest randomly scattered faster than that. Also a lot of current pending sectors (194). However, ever the optimist, no problem finding a new SATA cable. If that doesn't do the job I haven't wasted the money - and at least I'll be pretty sure it's the HDD.

Doesn't look good does it!!

521

521

Thanks again and will report back...

EDIT: Just ran HDTunePro again and suddenly the drive is exhibiting normal seek times. So now I really don't know what's going on!
Edited by marktheharp - 2/21/12 at 5:53am
post #16 of 16
The Current Pending Sector thing makes me think the drive is pooched, but you just edited in that it started working better - dying drives generally don't do that.

Try replacing the cable to see if it improves things - but Raw Read Error Rate, Current Pending Sector and Offline Uncorrectable are bad. I wouldn't bet on that drive lasting very long.

Sounds like you've had some rotten luck with drives!
     
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CPUMotherboardGraphicsRAM
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Hitachi 2TB - HDS723020BLA64 Crucial M500 960GB - CT960M500SSD1 WD 4TB Black - WD4001FAEX WD 4TB Black - WD4001FAEX 
Hard DriveHard DriveHard DriveHard Drive
Seagate 2TB - ST2000DM001 WD 640GB Black - WD6401AALS Seagate 6TB - ST6000DM001 Micron M500 - MTFDDAK480MAV 
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Pioneer DVR-115DBK Samsung SH-S243D/BEBE LG GH22NS90 Lite-On EBAU108 External DVD 
CoolingCoolingCoolingOS
Noctua NH-D15 Fractal Design 140mm Fan - FD-FAN-140 Fractal Design 120mm Fan - FD-FAN-120 Windows 7 
OSMonitorMonitorKeyboard
Ubuntu 14.04 LTS Samsung 2343BWX 23" (2048x1152) BenQ GW2765HT 27" IPS LCD Monitor (2560x1440) Genius Keyboard KB-G235 PA 
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Seasonic Platinum 1000w PSU - SS-1000XP Fractal Design Define R5 Steelseries Rival 6500 dcpi Mousepad + Desk 
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