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 Post subject: WD60EZRX speed dipping
PostPosted: November 4th, 2019, 11:57 
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Joined: November 2nd, 2019, 17:42
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Location: EU
Hi,
About a year ago I noticed the speed on my drive was dipping down to ~10MB/s. Since then it's not got any better/worse and there are no SMART errors. As far as I can tell no data loss and a clone was just succesful. I've now replaced the drive with a new one but am curious what's wrong with it and if there are any possible solutions?

Image

Here you can see during the clone on the bits where the speed would drop it would be ~10MB/s for 32 seconds then it would shoot up to max read speed for 8 seconds and repeat. Like clockwork.

Image

This is from 5 years ago when the drive was new and working fine.

Image

I've tested the drive connected directly to the motherboard and in an external USB dock with the same results. Also tested it unmounted to rule out drive access during the test.

Any explaination or solution welcome, seems a really strange one.

Thanks.


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 Post subject: Re: WD60EZRX speed dipping
PostPosted: November 5th, 2019, 9:34 
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Joined: November 2nd, 2019, 17:42
Posts: 18
Location: EU
Thanks for approving the topic, this isn't the first one I posted though. In the first one I explained how I already posted this issue on hddoracle and got some helpful replys but my response to them is still in the mod queue, so I found this place and decided to try here.

The helpfull people who responded on hddoracle said this is a weak head issue. Do you concur and is this something a novice could fix with a bit of help from your good selves? Ok probably a lot of help. If you could at least point me in the right direction to get me stareted I'd really appreciate it. Thanks.


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 Post subject: Re: WD60EZRX speed dipping
PostPosted: November 6th, 2019, 17:42 
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Joined: June 16th, 2018, 12:09
Posts: 291
Location: Turkey
You need logic scan and add slow sectors to defect list and regenerate translator with a proper data recovery tools.
I am already refurbishing many wd and toshiba drives like that .

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 Post subject: Re: WD60EZRX speed dipping
PostPosted: November 6th, 2019, 18:55 
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Joined: November 2nd, 2019, 17:42
Posts: 18
Location: EU
Hi, thanks for the reply. Can Victoria do that? I ran it already with it set to ignor, results here:

https://images2.imgbox.com/cf/36/HKrXMmn8_o.jpg
https://images2.imgbox.com/a3/49/VbMELtII_o.jpg

Shall I run it again with it set to Remap?

Thanks.


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 Post subject: Re: WD60EZRX speed dipping
PostPosted: November 7th, 2019, 19:11 
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Joined: November 2nd, 2019, 17:42
Posts: 18
Location: EU
Ok so I guess there's nothing i can do. What are the repercussions if I keep using it?


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 Post subject: Re: WD60EZRX speed dipping
PostPosted: November 8th, 2019, 6:15 
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Joined: June 16th, 2018, 12:09
Posts: 291
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Hddtune would stop if meet bad sector. Look like probably ( guessimg not serach sector by sector. Its scanning bye blocks ie 256 sector or different) bad sector in disk. You could use drive if don't mind sometimes very slow response. But future that slow parts could be bad
Don't use it for important data

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 Post subject: Re: WD60EZRX speed dipping
PostPosted: November 8th, 2019, 6:38 
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Joined: November 2nd, 2019, 17:42
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Ok thanks.

What's the software your using in your other thread, is that what I need?


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 Post subject: Re: WD60EZRX speed dipping
PostPosted: November 8th, 2019, 19:53 
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Joined: November 2nd, 2019, 17:42
Posts: 18
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What's the secrecy over this magical software? I'm not going to go into business and become your competitor.. I just don't want to throw this drive in the bin :)


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 Post subject: Re: WD60EZRX speed dipping
PostPosted: November 9th, 2019, 10:10 
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Joined: May 13th, 2019, 7:50
Posts: 44
Location: Nederland
Secrecy? He literally mentions the tool he's using in that thread, no? "I am using MRT."


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 Post subject: Re: WD60EZRX speed dipping
PostPosted: November 9th, 2019, 11:16 
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Joined: June 16th, 2018, 12:09
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Remcroft wrote:
Ok thanks.

What's the software your using in your other thread, is that what I need?

Look at second message. Using MRT hardware and it's software

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 Post subject: Re: WD60EZRX speed dipping
PostPosted: November 9th, 2019, 17:50 
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Joined: November 2nd, 2019, 17:42
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Ok thanks, I presumed he was refering to an option in the software he was using. Had I googled MRT hdd recovery it would of been obvious. Apologies.

Looking up that hardware it's not an option because it costs more than a new drive, so I guess I need to give up now. Just curious why the drive has gone like this.. is it a head issue or has the platter surface degraded?


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 Post subject: Re: WD60EZRX speed dipping
PostPosted: November 9th, 2019, 18:03 
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Joined: November 2nd, 2019, 17:42
Posts: 18
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btw I formatted it and was supprised to see the writes seem unaffected but reads still slow. To me that's just odd that reads struggle but writes are ok. Can anyone explain why that is?

ImageImage


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 Post subject: Re: WD60EZRX speed dipping
PostPosted: November 9th, 2019, 23:20 
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Joined: September 8th, 2009, 18:21
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Writes are blind. The drive won't know if a write was successful until it attempts to read the data.

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 Post subject: Re: WD60EZRX speed dipping
PostPosted: November 11th, 2019, 13:19 
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Joined: November 2nd, 2019, 17:42
Posts: 18
Location: EU
Interesting, thanks. Guess that's how this issue went undetedcted for so long as well.


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