[mythtv-users] Storage group weighting

[eric millham]

On Thu, May 3, 2012 at 12:39 PM, Michael T. Dean <mtdean at thirdcontact.com>wrote:

> On 05/03/2012 12:45 PM, eric millham wrote:
>
>> On Thu, May 3, 2012 at 8:12 AM, Raymond Wagner wrote:
>>
>>> On 5/3/2012 08:17, eric millham wrote:
>>>
>>>> I use this wiki:http://www.mythtv.org/****wiki/Storage_Groups_Weighting<http://www.mythtv.org/**wiki/Storage_Groups_Weighting>
>>>> <**http://www.mythtv.org/wiki/**Storage_Groups_Weighting<http://www.mythtv.org/wiki/Storage_Groups_Weighting>
>>>> >
>>>>
>>>>
>>>> to attempt to force myth to always record to one storage group.
>>>> My other group is slower so I just want to use it for playback of older
>>>> files once commflag is done.
>>>>
>>> Why not have two separate storage groups, record to one, and have a
>>> script
>>> balance out the storage between them offline?
>>>
>> Raymond, that's exactly what I was planning to do.
>> Use my Drobo storage for long term storage&  playback, my raid-1 2 drive
>>
>> internal array for recording/commskip, and a script to copy stuff older
>> than 2 days from internal to Drobo.
>> Basically the internal array is a cache. Maybe one day I would even use
>> SSD
>> here.
>> As the Drobo has approached 60% used it's becoming taxed with recording 3
>> HD, comm skip 2 and playback one at same time.
>>
>> So, how do I do that? I did not see a place to have a storage group for
>> recording storage but not record to it...
>>
>> I did run the backend with the suggested log flags and it didn't tell me
>> why it was not using the other storage group.
>>
>
> Based on your original post, I think the reason you don't understand
> Raymond's approach is because you (like most users) don't understand what
> you mean when you say, "Storage Group."
>
> A Storage Group is just a name you choose for a bunch of directories.
>
> A directory is a location on a file system.  (Most users seem to think
> that a directory is a "Storage Group"--that's a directory entry within a
> Storage Group, which is allowed to contain as many directory paths as you
> want.)
>
> You set up your Storage Groups as:
>
> SG Name: Default
> Directories within SG:
>    /path/to/record/to
>    /path/to/record/also
>
> Then, you create a Storage Group:
>
> SG Name: Archive
> Directories within SG:
>    /drobo/storage/directory
>    /drobo/storage/directory2
>
> etc.  Then create recording rules to record to Default Storage Group and
> do not ever specify Archive Storage Group in any recording rule.  That way,
> all record is done to the directories specified in Default Storage Group,
> and no recording is done to directories specified in Archive Storage Group.
>
> Then, when you want to archive, just simply move the file out of one of
> the Default Storage Group directories and into any of the Archive Storage
> Group directories--and all will work fine.  There's no need to tell MythTV
> that you moved it.  It just works.
>
> (The only constraint is that the host that recorded the video must be able
> to access it in the new directory--whether the new directory is a local
> directory or mounted via NFS/CIFS.)
>
> Mike
>
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>


Mike, that was annoyingly simple! Thanks!
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