8TB Reds (WD80EFAX) cause fans to be on 50% of the time

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jameshenderson
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8TB Reds (WD80EFAX) cause fans to be on 50% of the time

Post by jameshenderson »

Hi,

I have a TS-453bmini and have recently upgraded from 4TB Red's to 8TB red's and ever since the NAS's fan's have been on 50% of the time (even in idle) in a roughly 30min on, 30 min off cycle which worries me greatly.

Right now, the NAS is idling and the temperatures are:
CPU 47c
System 38c
Disk 1 51c
Disk 2 49c
Disk 3 48c
Disk 4 49c

They will continue to to rise until the fan kick-in and then they slowly cool and the fan stops (and repeat).

Should I be concerned?
TS-453Bmini + 4x 4TB Western Digital Reds (RAID5) - Plex Media Server
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jameshenderson
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Re: 8TB Reds (WD80EFAX) cause fans to be on 50% of the time

Post by jameshenderson »

So the fan has just gone on with the following temperatures:
CPU 47c
System 38c
Disk 1 52c
Disk 2 49c
Disk 3 48c
Disk 4 49c

Fan speed 1621 RPM
TS-453Bmini + 4x 4TB Western Digital Reds (RAID5) - Plex Media Server
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beshur
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Re: 8TB Reds (WD80EFAX) cause fans to be on 50% of the time

Post by beshur »

Hello.

I would suggest that the issue is with the software.
Something's waking up the disks and reads/writes on them.
Check the packages you are running.

See https://www.qnap.com/en-us/how-to/faq/a ... ndby-mode/
QSync installed on your computer also does periodical checks.
Also, not listed here, I noticed Qsirch also does not allow the disks to sleep properly.

I have the same HDDs and did quite an investigation with them (see viewtopic.php?f=356&t=157139)


Cheers.
TS-253B-8G | 2x WD Red Plus 8Tb
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jameshenderson
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Re: 8TB Reds (WD80EFAX) cause fans to be on 50% of the time

Post by jameshenderson »

Thanks, I'll check that out, but the unit is idling when the fans go on and nothing has changed (software wise) since swapping out the 4TB for 8TB.

I only have Plex installed and 2 containers (Homebridge and Home assistant), both of which I switched off for testing purposes). ...so basically. nothing running.
TS-453Bmini + 4x 4TB Western Digital Reds (RAID5) - Plex Media Server
wilsodg
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Re: 8TB Reds (WD80EFAX) cause fans to be on 50% of the time

Post by wilsodg »

The 8TB reds will run hotter because they are spinning at 7200 rpm - whereas the 4TB were spinning at 5400. See my other post - WD have just clarified that 8TB EFAX reds are classed as 5400 rpm (read performance), but actually spin at 7200.
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jameshenderson
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Re: 8TB Reds (WD80EFAX) cause fans to be on 50% of the time

Post by jameshenderson »

just seen your reply (I don't get email updates for some reason). Thanks!
TS-453Bmini + 4x 4TB Western Digital Reds (RAID5) - Plex Media Server
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