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Hi,
On Wednesday 29 June 2011 08:16:36 J=C3=B6rn Nettingsmeier wrote:

quoted text
> On 06/29/2011 08:02 AM, Arnold Krille wrote:

> > I don't believe the journal takes that much overhead. What makes

> > recording more difficult is that with one ardour-session and several

> > channels, you are writing several files at once. So you want a disk with

> > fast seek-time and/or high latencies set in jack/ardour.

> i found that increasing ardour's disk buffer size from 5 seconds to

> something like 45 seconds helps a lot. basically, you throw ram at the

> problem :) since i did that, i've never seen the dreaded "disk couldn't

> keep up with ardour" message again.

> you will want to undo this during editing, though, or else ardour will

> try to fill those buffers before playing, which takes time.

That is something good for the archives. And maybe for some wiki or FAQ on =

the=20

ardour page, I think...
> > And if you want to optimize the disk, you

quoted text
> > will take a serious look at ssd for the recording of the current session

> > and hold the archive on a nas with raid.

> not sure about ssd - i think that's wasteful given the limited number of

> r/w cycles you get from those things.

Well, "limited" in the sense that manufacturers and admins are pushing to u=

se=20

them for database-servers, lots of rw-access, lots of random-access. And th=

ats=20

where their main advantage is. As a bonus you get less power consumption, l=

ess=20

heat and less mechanical vibrations and noise (which is good for the other=

=20

hdds in the server).
> but raid1 is pretty much a must

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> for what i do. i can't imagine discussing accidental data loss due to

> single drive failure with a customer...

> especially not if it's a choir and orchestra whose combined salary would

> easily buy you a multi-TB RAID6 per hour.

> everything goes to raid1 when i do recording jobs, and before the

> machine is moved, i make a backup copy to an external disk that is

> looked after very, very well.

Too bad that most venues have slow connections, otherwise one could sync an=

=20

encrypted copy to amazons S3 or stratos HiDrive for security... But imagine=

=20

pushing a 2GB recording-session over a HDSPA+ connection that is limited to=

=20

64kbit/s after the first GB:-)
Have fun,
Arnold
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