Disk won't spin down.

[Taibok]

I've been using unRAID for a few months, and am having a problem with one of my disks.  I can't seem to get it to spin down.  Even manually spinning down all disks with the unMenu option leaves disk5 spun up.  I'm currently using 5.0.5

 

I tried using inotify, installing the package based on the instructions I found in this post http://lime-technology.com/forum/index.php?topic=17449.msg157730#msg157730 but when I go to invoke the inotifywait -rw /mnt/disk5 command, I get "-bash: inotifywait: command not found".  I'm not sure what I'm doing wrong.

 

Is there a step I'm missing to use this command?  Is there anything else I could do to check why one particular disk in my array is staying spun up?  I'm relatively computer savvy, but a complete noob to Linux in general.

 

Thanks.

[kricker]

I'm bumping this old thread due to an issue I am having.

 

I built a new unRaid setup for my Dad using a HP Microserver N54L and some spare drives I had laying around. For the most part everything is working great. The only issue I have is with one drive in particular will not stay spun down. I can manually tell it to spin down, but something is causing it to spin back up. I installed inotify from here and setup a watch on the disk. It never reported any activity, yet the drive did spin up. I don't' see anything in the logs.

 

I have the following Dynamix plugins intalled:

• WebGUI
  
• Active Streams
  
• S3 Sleep
  
• System Info
  
• System Stats
  
• Plugin Control
  

 

No other plugins are installed.

[JonathanM]

Isolate it from the network and see if it still happens.

[kricker]

As in pull the network cable from it? What is your though on this?

 

I just saw the statistics show 9 reads on that drive. How can I tell what is doing these reads?

[JonathanM]

As in pull the network cable from it? What is your though on this?

 

I just saw the statistics show 9 reads on that drive. How can I tell what is doing these reads?

Shut down or disconnect each device that has network access to the server one at a time and see if it stays spun down. You probably have something doing periodic content updates or something.

[kricker]

Everything that has access to the server is shutdown. I spun down the disk and reset the statistics. There have been no more reads on the disk but it still spun up.

[JonathanM]

Deny the server access to the internet and see if it spins up. If it still spins up, try physically pulling the network cable and see if it still spins up.

[kricker]

I can't find a way to block it access to the internet with my router. I can add it to the firewall rules, but I can only block access based on ports. How can I know which port it could be communicatin on? If I pull the cable I won't be able to see if the disk is spinning or not.  Hmmmm.

[JonathanM]

If I pull the cable I won't be able to see if the disk is spinning or not.  Hmmmm.

hdparm -C /dev/sd?

will give drive status, so you can check from the local console without network access.

[kricker]

DOH! I manage unRaid remotely so often I forgot I could just login locally. I feel so dumb. Thanks for the tip. I'll do that.

[kricker]

After a couple system reboots it started working as it should. Then the system was moved to its new home and the issue came back. Hopefully after another few reboots it will behave again.

[mr.sparkle]

You have cache dirs running?

[kricker]

Nope. Only the addons listed earlier.

[kricker]

The system wierdness has worked itself out somehow and it sleeps happily.