Randall J. Parr wrote:
Brandon Beattie wrote:
Well it happened, one of 5 disks in my LVM setup went bad and the claims
of every LVM user I know didn't come true (That if you lose one disk,
you can still get to the data of the rest).
From this I had an idea and wanted to see if it's a good idea for Myth.
Recordings would work like this. Just like in various mythplugins you
would be able to specify various locations to store recordings to. This
wouldn't be hard of course.. if that directory doesn't have enough
space, use another directory. If no directories exist, expire a file
from the directory with the most amount of space in it. Of course there
could be different ways to expire, move files, to balance used space..
Comments?
The reason I truely like this idea is it takes a lot of complexity out
of the picture. No longer do you need LVM, Raid, or even need to have
things setup for one directory to store recordings.. Just tell it where
to use space from and it will save recordings to whereever it can.
This would also be helpful for adding/removing disks and so on. Another
feature that would be helpful is when selecting a recording in the
watch-recordings, is to specify which disk it should reside on.. so
maybe store shows you care about to a specific disk (maybe it's raided
or something) and kids shows you don't care about would be stored to an
old disk that may go out at any time.. You could also move files,
reformat disks, repartition, and so on without having to kill your
entire recorded shows.
I see another "use-case" for this kind of functionality: local vs
file-server storage.
If your storage list went "local-drive-dir: network-drive-dir" the shows
could be stored on the network when the local drive filled up.
Alternatively, "network-drive-dir: local-drive-dir" would use the local
drive only if the network drive were unavailable or full.
An alternative strategy/use might be to migrate recordings to the file
server as the local drive filled up.
My hope/intention would be to reduce the size, heat, and noise of the
local (ie living room) system drives by using/migrating-to the large,
redundant storage of my file-server (which is not in the living room)
R.Parr
Temporal Arts
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I currently use multiple non raided/non LVM'ed disks in my server
for MythTv using symbolic links to allow MythTv to access the
content. Not very nice.
For me a simple colon separated path of directories to use
for recording storage would be good. All recordings would
be written to the first disk. Any marked as "no expire" would
be moved by a background process to the other disks.
One useful feature of separate non raided/LVM'ed disks that I
use is to power down the disks that are not in use. This
saves power and increases disk life.
Terry
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