[mythtv-users] Multi-rec - thoughts about max no. of recordings
latepaul at gmail.com
Mon Jan 21 19:21:42 UTC 2008
On 21/01/2008, Michael T. Dean <mtdean at thirdcontact.com> wrote:
> On 01/21/2008 01:15 PM, Paul Mason wrote:
> > So, this weekend I rebuilt my Myth box with svn 15504 in order to get
> > multi-rec.
> > It's all working very nicely but I was wondering about the setting of
> > no. of recordings" on the capture card. This is what turns a single real
> > tuner into a number of "virtual tuners" I guess. It defaults to 2. My
> > has a single SATA2 disc (16Mb cache, 7200rpm IIRC) and my recordings
> > partition is using xfs. I've got a single Nova-T 500 i.e. 2 physical
> > So I've been thinking about whether I want to increase this value or
> > I'm wondering what sort of throughput it's reasonable to expect on a
> disc -
> > and I'm assuming the disc is the limiting factor here. I have in the
> > year recorded two programs, whilst watching a 3rd and transcoding a 4th
> > part of a mytharchive job - I've done this quite regularly. Once or
> > there was even a fifth doing ad-scanning - which I hadn't realised was
> > running. So we're talking 5 pretty disc intensive operations
> > Having said that I've got the RT priority stuff enabled and I know that
> > mytharchive at least re-nices its jobs to a lower priority.
> > I guess the obvious answer is to run a few tests and see what happens.
> > anyone done this? Any thoughts on the issue?
> Just a thought. Adding additional disks (spindles) and keeping separate
> filesystems (no MD--no RAID'ing or LVM'ing the drives together) and
> adding them as separate directories in one or more storage groups would
> definitely help.
Yeah unfortunately when I set up this machine I did so on the cheap, bought
a cheap system and just added a nova-t 500. And the machine only has one
drive bay and one SATA connection. I may at some point get an eSATA card but
so far I haven't really needed to.
Speaking of which in the previous 9 months or so I've only had a handful of
conflicts, so I don't really 'need' this - I'm just playing to see what it
can do :)
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