I am running the preclear script on a new unassigned 4TB Hitachi, there is no other activity on the array, but still all my disks are spinned up constantly. If i spin them down manually, some wont, and others are spinned up again in a few moments. Inotifywait shows no access or modify actions.

 

Why is preclear spinning up the whole array? Is that normal?

Preclear run is done, and now everything can be spun down again, all is normal...

While preclear was running, all drives were permanently spun up, also extracting e.g. a 50GB bluray was terribly slow... normally takes 20 or 30 minutes or so, now it took over 10 hours.

 

No one got any idea if this behaviour is normal?

I had the same issue when I was pre clearing a 3tb drive. Some were saying cache directory was the culprit. Not sure but glad to hear that I was not the only one. By the way I have the exact same setup. That may also be a common thread.

Yeah its weird right? Anyway, next time i'm adding a disk i will turn of dir caching, see if that helps. It was turned on this time.

So, adding another 4TB drive, now on v5.0.2, but the same issue. Cache dirs is stopped, but one disk (disk 1) keeps spinning up, and can NOT be spinned down. Not using gui, not using the spindown command. Also the inotify tools on disk1 will NOT show any activity, and takes a long time to start.

disable addons one at a time via the GUI and attempt to spin it down.

After waiting a few hours the disks were all spinned down... weird.

 

Now i have another problem. The powerdown script doesnt work anymore, and my mac can't see smb and afp shares. For some reason, every time i am running the pre-clear script, all sorts of problems occur... i would say preclear is causing all this...

 

Can't wait for preclear to finish, sadly this will take a few days... once that shit is finished, i will reboot and see if all is back to normal.

After waiting a few hours the disks were all spinned down... weird.

 

Now i have another problem. The powerdown script doesnt work anymore, and my mac can't see smb and afp shares. For some reason, every time i am running the pre-clear script, all sorts of problems occur... i would say preclear is causing all this...

 

Can't wait for preclear to finish, sadly this will take a few days... once that shit is finished, i will reboot and see if all is back to normal.

I would say you do not have enough memory for everything you have running, or did not use the -w -r and -b options to the preclear script.

How do i check used memory?

Nevermind, preclear finished.

 

But am i using so much memory then? I've only got sabnzb, sickbeard, logitech, dropbox and subversion running. As a windows user, i was always ridiculed by my fellow unix 'friends' that stupid windows needed so much memory, unix was waaaaaay better.

 

And here i am, running a stripped down unix version on 4GB (that's FOUR GIGABYTES) of memory, and you are telling me that is NOT enough for those few stupid apps i'm running? Really?

 

And isn't this unraid version a 32 bits version, so... it can't even address more than 4GB at all can it?

UnRAID can use more than 4GB. Each process is limited to 4 GB. While 4GB appears to be enough to run the system and add-ons, adding pre-clear may be too much. Use the options to limit pre-clears RAM usage.

Thanks, will try to remember next time i add a drive.

Or maybe just upgrade the memory... whatever comes first.