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Scanner - accessing disks all the time


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#1 Spider99

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Posted 09 January 2017 - 10:01 PM

Ok i have turned off the bitlocker option in the xml config file - i.e. false

 

But two to three time a minute all disks are accessed for a couple of seconds and hence wont spin down

 

i disabled scanner and the access has stopped

 

ver 3122 i think

 

what am i missing in the options to stop this??


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Tim

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DrivePool & Scanner on 2012R2 Essentials Server Gigabyte Z87x OC Force, i7-4790S, 32 GB, LSI 9211, HP SAS Expander, 27 Storage disks, 6 SSD Cache, ~115 TB Storage


#2 CyberSkulls

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Posted 10 January 2017 - 12:35 AM

Not sure what all you have tried, so this what comes to mind from my own recent stroll down this path...

Go to "Settings", then "Scanner Settings", click on the S.M.A.R.T. Tab and check the box "Throttle Queries" as well as check the box "Do not query if the disk has spun down".

Hopefully that will get you moving in the right direction.


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#3 Christopher (Drashna)

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Posted 10 January 2017 - 07:55 PM

CyberSkulls is spot on.  Throttling the SMART queries should fix this issue. 


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#4 Spider99

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Posted 10 January 2017 - 08:25 PM

Ah ok throttling was unchecked - have set to 180 mins - same as balance settings currently

 

Other than the scanner interface is there a way of checking when disks are spun down without spinning them up?  a log perhaps?


Tim

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DrivePool & Scanner on 2012R2 Essentials Server Gigabyte Z87x OC Force, i7-4790S, 32 GB, LSI 9211, HP SAS Expander, 27 Storage disks, 6 SSD Cache, ~115 TB Storage


#5 CyberSkulls

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Posted 11 January 2017 - 01:47 AM

Removed

I didn't read the "other than the Scanner interface"

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#6 Spider99

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Posted 11 January 2017 - 09:34 AM

Thanks guys it working :)

 

One way to tell is initial slow access to directory browsing - although there must be a log somewhere i will have a look on google :)


Tim

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DrivePool & Scanner on 2012R2 Essentials Server Gigabyte Z87x OC Force, i7-4790S, 32 GB, LSI 9211, HP SAS Expander, 27 Storage disks, 6 SSD Cache, ~115 TB Storage


#7 Umfriend

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Posted 11 January 2017 - 12:55 PM

Actually, I think Alex once wrote a piece on this somewhere here or on stablebit.com. As I understand it, the issue is that when you ask a drive for its status, that will cause the disk to spin up. IIRC there is a state accoriding to the OS which may not be the same as the state according to the actual drive and it is the latter you would want (but peeking would cause it to spin up).



#8 Christopher (Drashna)

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Posted 12 January 2017 - 10:29 PM

I've moved all the "good posts" about how the software works, into the "Nuts and bolds" forum for each product.

 

Umfriend is referring to this:

http://community.cov...?p=277#entry277

 

And yeah, it's like schrodinger's cat. You can't know without observing, and that act of looking changes the outcome. :)

 

 

 

The only way to know for sure is to check the power consumption of the entire system. 

 

To do this, buy a Kill-O-Watt power meter or get a UPS/Battery Backup that reports the watt usage, as well.

Keep the disks active (for instance "ping" all of the disks, or run a burst test in StableBit Scanner), and measure.  And then compare from there. 


Christopher Courtney

aka "Drashna"

Microsoft MVP for Windows Home Server 2009-2012

Lead Moderator for We Got Served

Moderator for Home Server Show

 

This is my server

 

Lots of "Other" data on your pool? Read about what it is here.





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