[mythtv-users] Disk utilization on slave backend questions
masterclc at gmail.com
Fri Jul 8 16:42:34 EDT 2005
On 7/8/05, Alex Brekken <brekkal at gmail.com> wrote:
> Hey all, I'm currently running a combo frontend/backend machine which
> has a 200 GB hard drive, and one PVR-250 tuner card. I'd like to add
> a slave backend which would also have a PVR-250 tuner card and a 160
> GB drive.
> I feel like I have an OK understanding of how a distributed Myth
> system will work, but I'm a little confused about the best way to
> configure the drives.
> Does it make sense to put the 160 GB drive in the slave backend? I
> assume that whatever recording is done on the slave, whether it's live
> TV or just a standard recording, will get written to that local drive.
> So therefore, if the slave is down for any reason, then I obviously
> won't be able to watch whatever shows were recorded on it.
> Additionally, can the master backend/frontend machine just "see" the
> 160G drive on the slave? Or do I need to set up an NFS or
> On the other hand, if I put the 160G drive on the combo
> frontend/backend box (along-side the 200G drive), then any recording
> the slave does has to be pushed across the network to the combo
> machine. Is this a big deal?
> I guess I'm mainly wondering what other Myth users feel is the best
> way to set this up as far as disk usage is concerned. Thanks!
I've recently ran into the same circumstance. I however chose to make
use of the slave backend as a slave backend. I stuffed a capture card
in there, setup the hard drive, and used it as a slave backend. It
works great, when I switch cards locally before, it switched just as
you would expect, and now when I switch cards, it includes the card
stuffed in the slave backend, and if I wasn't a hardware nut, there
wouldn't be an easy way to tell the difference!
I really like this setup. But you mentioned "if the backend is down,
I can't access my recordings from that machine". This is absolutely
true. I however don't plan on having it down. If it 'goes to sleep'
I can always wake it. I find it quite... nice to have 2 seperate
backends rather than everything thrown into 1 box. It's more
attribution to Myth's awesome features, plus it gives me the ability
to expand much easier.
In the end, the answer you really need is that it's just personal preference.
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