[mythtv-users] 3 BEs, 6 disks, 9 tuners--how should I configure storage groups?

Jonathan Larson jtlarson at u.washington.edu
Thu Sep 4 17:28:40 UTC 2008


My basic configuration is 3 backends; each with 3 PVR-150s and 2 disks dedicated to recordings. I've got the recording disks symlinked as /myth/recordings1 and 2. I also have symlinks from /mnt/[hostname] to /myth (for the local storage) and to /mnt/auto/[hostname] (for NFS shares on other BEs). This arrangement allows all three servers to see all available storage at the same place: /mnt/[hostname]/recordings1 (or 2).

Currently I have each server set up with the 2 local storage disks in the 'default' group: /mnt/[hostname]/recordings1 and /mnt/[hostname]/recordings2; but I have several questions about this setup:

Since I defined the tuners on my MBE first, they are going to be first on the 'tuner preference' list to record a show (all tuners are connected to the same source). Will upcoming recordings be passed on to the SBEs (overriding tuner preferences) when the MBE's disks are full?

Also, will a BE ever record to a storage group defined on a different BE?

And related to the above question: when there are multiple disks on multiple BE's, what's the recommended location for defining all the storage locations?:

1. Define all on MBE
2. Define local storage on each BE, and remote storage (e.g. a dedicated NAS box) on MBE
3. Define all locations on EVERY BE (would obviously result in duplicates).

Any help would be appreciated. I've looked at the information in the Wiki (http://www.mythtv.org/wiki/index.php/Storage_Groups), but it seems inconclusive with respect to my questions above.

Thanks,

Jon

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