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Follow Covecube on Twitter.Balancer method to avoid folder splits
Would it be possible for someone to look at a new balancer method to minimise/avoid folder splits at a certain level of the folder hierarchy?
The rough idea would be to keep all files in a folder together on the same physical disk. The use case is for DVD or Bluray VIDEO_TS or BMDV folders (particularly the latter) and their associated metadata. Ideally the balancer would specify a directory level below which all files would be kept together, unless disk space runs out.
For example, I have a directory structure ServerFolders > Videos > Movies > MovieName > BDMV for all my BluRays. The balancer would manage to level 5 (the BMDV/VIDEO_TS level) and not split the files at 5 folder levels or greater over more than one disk.
Why? Two problems, both related to Disk Spindown. It's great to enable disk spindown to save power/heat/noise. It's a good feature of Drivepool that we can do this and do not need all disks to spin up to stream a video, but there are problems when the directory is split over more than one disk:
1. the stream can be interrupted when the VOB file changes at each Gb - the stream needs to pause while the next disk spins up.
2. More than one disk needs to spinup, missing a small (tiny) power saving.
I'm not so bothered about 2, but the pause in streaming is a problem.
I know there is the possibility to create user-developed plugins, but I don't really have a lot of time to study how and think it would be a useful "standard" plugin.
Any thoughts?
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