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SageTV Software Discussion related to the SageTV application produced by SageTV. Questions, issues, problems, suggestions, etc. relating to the SageTV software application should be posted here. (Check the descriptions of the other forums; all hardware related questions go in the Hardware Support forum, etc. And, post in the customizations forum instead if any customizations are active.)

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  #1  
Old 01-30-2008, 12:48 AM
Deacon Crusher Deacon Crusher is offline
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Location: Berkeley, CA
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1 Hard drive per tuner

Been reading some threads and I've got a question.

Is it really true that if you have 1 hard drive per tuner (so with my Homerun and pvr550 that's 4 tuners so should have 4 hard drives) then if you are actually recording 4 shows at once then Sage itself would somehow make sure that you are recording one to each of your 4 destination hard drives?

Also, is there a way if you have multiple destinations to get sage to favor one over the others (like you can do with a tuner?) So, if it's only recording one show at a time it should always use X destination until that destination is full.

thanks
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Sage 9 Cable provider is Comcast, Schedules Direct
Tuners: 4 ATSC - 2 seperate HD Homeruns all via Channel Master CM2016 on roof, 6 cable via 2 hdhomerun primes (opendct), 1 HD-PVR (in tuner priority order)
Clients: Wired: HD300, HD200, HD200 running Squeeze Slave, Placeshifters, HD200 (via wireless N bridge)
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  #2  
Old 01-30-2008, 12:58 AM
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Opus4 Opus4 is offline
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Quote:
Originally Posted by Deacon Crusher View Post
Is it really true that if you have 1 hard drive per tuner (so with my Homerun and pvr550 that's 4 tuners so should have 4 hard drives) then if you are actually recording 4 shows at once then Sage itself would somehow make sure that you are recording one to each of your 4 destination hard drives?
No, and...

Quote:
Also, is there a way if you have multiple destinations to get sage to favor one over the others (like you can do with a tuner?) So, if it's only recording one show at a time it should always use X destination until that destination is full.
No.

Appendix C of the PDF manual describes how SageTV decides where to store the next recording; essentially, a new recording goes to the drive with the most available space.


There is a property that can be used to specify which recording dir(s) a tuner can use, but I'm not sure that is what you are looking for.

mmc/encoders/<some number>/forced_video_storage_path_prefix

- Andy
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  #3  
Old 01-30-2008, 01:10 AM
Deacon Crusher Deacon Crusher is offline
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Very fast clarification.

Thanks

So, the follow up question is fairly obvious.

Given that Sage will just keep recording to the drive with the most available space it really probably does make sense then to put your drives in a raid array, yes???

thanks
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Server: PhenomII X4 810, 16GB, 4850, C: 256GB Samsung SSD, D: HGST 3TB, E: HGST 4TB, H: 3T Seagate, 1.5 TB on NAS via UNC, Win 10 x64,
Sage 9 Cable provider is Comcast, Schedules Direct
Tuners: 4 ATSC - 2 seperate HD Homeruns all via Channel Master CM2016 on roof, 6 cable via 2 hdhomerun primes (opendct), 1 HD-PVR (in tuner priority order)
Clients: Wired: HD300, HD200, HD200 running Squeeze Slave, Placeshifters, HD200 (via wireless N bridge)
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  #4  
Old 01-30-2008, 06:13 AM
blade blade is offline
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Quote:
Originally Posted by Deacon Crusher View Post
Given that Sage will just keep recording to the drive with the most available space it really probably does make sense then to put your drives in a raid array, yes???
Not really. Raid is talked about enough on the forums that some people seem to think it's needed, but it's not.

I have 2 HD tuners and 2 analog tuners. I regularly capture 4 shows at once and process all 4 with comskip as they record and stream to 2 clients and have never had problems with disk throughput nor do defrag. I recently added my 5th drive. Of course it has the most free space so everything that gets recorded is going to the new drive and I haven't had any problems.

Personally I don't think raid is as beneficial for Sage as some people think. They get caught up in the idea of comparing the performance of a raid array to a single drive when in reality Sage is often accessing multiple drives at once. There are times when all the activity may be hitting a single drive, but probably more often multiple drives will be in use.

Last edited by blade; 01-30-2008 at 06:16 AM.
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  #5  
Old 01-30-2008, 08:14 AM
dmiraclejr dmiraclejr is offline
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I've got my own thread going on in the hardware forum concerning my problems with multiple, concurrent turners/live comskip/extenders here http://forums.sagetv.com/forums/showthread.php?t=30330.

I would really like to get to the place where Blade is currently. It used to be that the video card playback was my main trouble spot but the HD extender has greatly reduced those problems. Now I am concentrating on the multiple concurrent tuners/comskip/extenders.

I just can't figure out how some people can have 4 tuners recording to 1 drive with 4 instances of comskip and watching multiple extenders and not have a problem with those concurent recordings themselves and/or the extenders. I admit I am jealous.

I hope I am not derailing this thread (it seems to pertain to me). Any replies or guidance here or in the above linked thread would be appreciated.

Thanks.
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  #6  
Old 01-30-2008, 02:12 PM
bbig119 bbig119 is offline
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Quote:
Originally Posted by Opus4 View Post
No, and...

No.

Appendix C of the PDF manual describes how SageTV decides where to store the next recording; essentially, a new recording goes to the drive with the most available space.


There is a property that can be used to specify which recording dir(s) a tuner can use, but I'm not sure that is what you are looking for.

mmc/encoders/<some number>/forced_video_storage_path_prefix

- Andy

Andy,

I have a somewhat related question which I assume the answer is no, but please, enlighten me. I currently have all recordings stored over two local drives on my server system. There have been times that I've run into space crunches and felt the need to delete some shows that I really wanted to keep. Is there a way to label a network drive for archived shows(like overflow)? By this I mean that I don't want Sage to actively record to the network drive(for several obvious reasons), but it would be fine to move older recordings to this network drive to free up recording space locally. In this scenario, the recordings would still be browsable as Sage recordings(assuming access to the network drive), but would free up local space which is better for recording shows.

Last edited by bbig119; 01-30-2008 at 02:15 PM.
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  #7  
Old 01-30-2008, 02:44 PM
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GKusnick GKusnick is offline
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Sage won't move files automatically to make room, if that's what you're asking. But if you manually move recording files to a video import directory, they'll still be recognized as recordings rather than imports. See the FAQ for details on how to move recordings safely.
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