Author Topic: Problem with External Hard Drives  (Read 2707 times)

daci92

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Problem with External Hard Drives
« on: March 28, 2011, 10:49:04 am »
At this moment i have connected two external drives with 3TB Audio and Video materials but i cant get them to work .
Manage drives reads them but i cannot get any of the data inside them ,even audio video options dont find anythin

bongowongo

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Re: Problem with External Hard Drives
« Reply #1 on: March 28, 2011, 11:10:28 am »
USB connection? LAN? E-sata?

daci92

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Re: Problem with External Hard Drives
« Reply #2 on: March 28, 2011, 11:23:40 am »
They are both USB connection

sambuca

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Re: Problem with External Hard Drives
« Reply #3 on: March 28, 2011, 12:43:59 pm »
Afaik, you need to use the "LinuxMCE directory structure" and move your existing media around to the correct directories. The wiki has more details about this.

best regards,
sambuca

tschak909

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Re: Problem with External Hard Drives
« Reply #4 on: March 28, 2011, 03:30:55 pm »
Hi.

I would strongly discourage you from connecting USB disks to your Core or Core/Hybrid, as USB disks consume CPU time in order to function, and the combination of running UpdateMedia (which is accessing the MySQL database) and running your USB disk(s) on the same machine, will undoubtedly raise your iowait percentage to raise to the point where the CPU is WAITING on the USB disks to finish their I/O, which blocks other I/O related processes.

This can manifest itself in many ways, such as the orbiter crashing when updating the Orbiters in a room when watching TV (because of the database accesses required to populate the TV guide), to slow media list viewing, etc. But basically, it is a _VERY_ bad idea to attach USB disks to a Core or Core/Hybrid.

It _IS_ OK to connect them to media directors and other workstations, however.

-Thom

daci92

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Re: Problem with External Hard Drives
« Reply #5 on: March 29, 2011, 08:22:06 am »
Afaik, you need to use the "LinuxMCE directory structure" and move your existing media around to the correct directories. The wiki has more details about this.

best regards,
sambuca
I use LinuxMCE directory structure from the begining .With the correct directories you mean the directories from the internal hard drive ?
If it's like that i cant coz like i said i have 3TB on external for now ,but i have 160GB internal disk .

daci92

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Re: Problem with External Hard Drives
« Reply #6 on: March 29, 2011, 08:26:09 am »
Hi.

I would strongly discourage you from connecting USB disks to your Core or Core/Hybrid, as USB disks consume CPU time in order to function, and the combination of running UpdateMedia (which is accessing the MySQL database) and running your USB disk(s) on the same machine, will undoubtedly raise your iowait percentage to raise to the point where the CPU is WAITING on the USB disks to finish their I/O, which blocks other I/O related processes.

This can manifest itself in many ways, such as the orbiter crashing when updating the Orbiters in a room when watching TV (because of the database accesses required to populate the TV guide), to slow media list viewing, etc. But basically, it is a _VERY_ bad idea to attach USB disks to a Core or Core/Hybrid.

It _IS_ OK to connect them to media directors and other workstations, however.

-Thom
Hey Thom

It is ok ,i will not connect them directly when i will complete the system ,this is just test period ,i'm not sure if i will use MCE .
I just want to see how the things will work , if it's ok i will buy NAS and i will have like 10TB inside .
If it's not ok why i would spend $600 for NAS .

What do you mean by media directors?Another pc which will control the media?

/Daci

JoakimL

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Re: Problem with External Hard Drives
« Reply #7 on: March 29, 2011, 11:09:03 am »
A Media Director is a basic piece of the LMCE architecture. Check http://wiki.linuxmce.org/index.php/Media_director for more info.

/Joakim

daci92

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Re: Problem with External Hard Drives
« Reply #8 on: March 30, 2011, 09:01:01 am »
A Media Director is a basic piece of the LMCE architecture. Check http://wiki.linuxmce.org/index.php/Media_director for more info.

/Joakim
Ok i get it  ,thanx.


So can somebody help me how to get the files from the external disks on the mce but when they are directly connected coz i don't have another pc at the moment to tryout the media director

JoakimL

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Re: Problem with External Hard Drives
« Reply #9 on: April 02, 2011, 08:08:45 pm »
If performance is the issue I'd suggest to try the following:
Move all your files into a temporary directory on your USB drives, eg. /mnt/device/49/tmpmedia
Create a lock file which will inhibit the media update daemon to see your files, eg.
 touch /mnt/device/49/tmpmedia.folderlock
Now move a few media files into the LMCE structure on your USB drive, e.g. into /mnt/device/49/public/data/videos
Wait for the media update daemon to do its job and look into the web admin, media browser to see if your files pop up.

/Joakim

daci92

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Re: Problem with External Hard Drives
« Reply #10 on: April 03, 2011, 12:07:10 pm »
If performance is the issue I'd suggest to try the following:
Move all your files into a temporary directory on your USB drives, eg. /mnt/device/49/tmpmedia
Create a lock file which will inhibit the media update daemon to see your files, eg.
 touch /mnt/device/49/tmpmedia.folderlock
Now move a few media files into the LMCE structure on your USB drive, e.g. into /mnt/device/49/public/data/videos
Wait for the media update daemon to do its job and look into the web admin, media browser to see if your files pop up.

/Joakim
Finally nice answer , i will try it in Monday coz  the computer and the drives are in my office ,we will see what will happend :)

daci92

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Re: Problem with External Hard Drives
« Reply #11 on: April 08, 2011, 10:31:46 am »
Closed issue ,the problem was that all my files were in folders that are not from MCE's directory structure ,when i move some files they are finally found in the system.
I have a problem now that sometimes the drives are not recognized but i guess that's normal with my kind of work.
Thanks ppl.