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 Post subject: WD RED 4TB - WD40EFRX slow speed
PostPosted: January 18th, 2015, 10:15 
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 Post subject: Re: WD RED 4TB - WD40EFRX slow speed
PostPosted: January 18th, 2015, 10:35 
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Joined: August 11th, 2010, 19:00
Posts: 145
Location: Portugal
IM getting this slow speeds while copying new files that where created yesterday on this drive after download

The old files first 2TB copied the last month are copied without any speed problems to other HDD os my system with 100 - 120MB/s speed

if i try the same files i get usb 2.0 speeds or even lower

the drive itself doesnt have any bad sectors

what do you think guys ? what can i do ?

Smart:

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Hdtune:

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it could be antivirus process but i dont notice anything while copying from the other parts of the disk...

wierd

thanks guys


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 Post subject: Re: WD RED 4TB - WD40EFRX slow speed
PostPosted: January 18th, 2015, 11:12 
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Joined: December 8th, 2013, 4:48
Posts: 838
Location: Pakistan
are you using any utility for copying ?

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 Post subject: Re: WD RED 4TB - WD40EFRX slow speed
PostPosted: January 18th, 2015, 11:25 
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Joined: August 11th, 2010, 19:00
Posts: 145
Location: Portugal
i was using windows explorer only

this happens on teracopy too ( could be windows copying issue but it seems worse than that)

Copying from hard drive to my SSD (both internal sata ports) with antivirus disabled

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Now for example the other part of the hard drive that i was talking about ( the same hard drive to the same ssd) old data

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thanks for trying to help


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 Post subject: Re: WD RED 4TB - WD40EFRX slow speed
PostPosted: January 18th, 2015, 17:15 
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Joined: August 11th, 2010, 19:00
Posts: 145
Location: Portugal
new files that where written today have this slow read issue as well

maybe its the writing head i don't know

im backing up the data


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 Post subject: Re: WD RED 4TB - WD40EFRX slow speed
PostPosted: January 19th, 2015, 5:16 
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Joined: December 8th, 2013, 4:48
Posts: 838
Location: Pakistan
it seems you are struggling with the same NAS drives ?
viewtopic.php?f=1&t=28825&start=60

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 Post subject: Re: WD RED 4TB - WD40EFRX slow speed
PostPosted: January 19th, 2015, 8:46 
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Joined: August 11th, 2010, 19:00
Posts: 145
Location: Portugal
MindMergepk wrote:
it seems you are struggling with the same NAS drives ?
viewtopic.php?f=1&t=28825&start=60


its not the same thing mate :)

that drives that you have seen on that old post were 2TB reds that where sent to WD after the recovery (some bug on NAS) after firmware upgrade make me lost the partition


in this case is one new 4TB Red :)


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 Post subject: Re: WD RED 4TB - WD40EFRX slow speed
PostPosted: January 19th, 2015, 12:39 
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Joined: December 8th, 2013, 4:48
Posts: 838
Location: Pakistan
you are right, sorry.
RED confuses me because they are for NAS, so you are using this as desktop hdd right ?

one of many reason could be that drive has some slow sectors, the reallocated sector count value is high.

you should immediately backup all your data
after that you can scan your drive using MHDD for full surface verification

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 Post subject: Re: WD RED 4TB - WD40EFRX slow speed
PostPosted: January 19th, 2015, 20:55 
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Joined: August 11th, 2010, 19:00
Posts: 145
Location: Portugal
Doesnt have any bad sectors as of today

Yes you are correct im using as a normal desktop Hdd... they are very good hdds and i cant hear them running :)

I remenbered to create 4 partitions on the hard drive... 900Gb each

Will try to discover if one of the plates is bad

Thank you for your input


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