6 Apr
2003
6 Apr
'03
7:25 p.m.
Jan,
Now I understand the "Evil Twin" part of your name,
$11,000.00 isn't dreaming, it's nightmaring. :) I did
a froogle.com for "HP Ultrium SCSI tape drive" and it
seems we're talking between $4,000.00 and $6,000.00
USD. The question I have is, will I ever be able to
afford a fishing boat?
I swear I'm going to follow through with my threat to
sell the studio and franchise adolescent owned
lemonade stands. There'd be alot more profit in it.
ron
--- "Jan \"Evil Twin\" Depner"
<eviltwin69(a)cableone.net> wrote:
Ron,
If you're really serious about having failsafe
backup, get a PogoLinux
StorageWare 3800 1.2TB IDE RAID (RAID 5 with spare).
Use rsync to
automatically back up your SCSI RAIDs to the 3800
(crontab). Then get
an HP Ultrium SCSI tape drive to hook to the 3800.
The drives run about
5K and tapes are down to about $80 per. They are
advertised to hold
200GB compressed, 100GB native. You know how those
advertisements are.
I didn't believe it so I did my own tests at work.
Using byte compacted
(as opposed to compressed or bit compacted) sonar
data I got 170-180GB
per tape with an actual write speed to tape of
13.465MB/sec. DDS just
ain't in the race at 1MB/sec for DDS3 or 2MB/sec for
DDS4 (those are
rated numbers, not actual). This setup would run
you about 11K. I
figured I'd throw this out here while we were
dreaming ;)
Jan
On Sun, 2003-04-06 at 05:36, R Parker wrote:
scsi
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Hi,
--- Steve Harris <S.W.Harris(a)ecs.soton.ac.uk>
wrote:
> > gotta duck and cringe. :) Guys, with my
> requirements,
> > could it be done better and for less money?
It's
> not
>
> Hell no, I'd use exactly the same setup. My
> experience is that it costs
> far more to back up a large disk system than it
does
to
populate it with
disks anyway.
Yikes! I'm using large ide disks to mirror the raid array.
I've been thinking about switching our archive
strategy from DD3 tape to rewritable DVD. DVD is
probably alot more convienant for clients.
The following is pretty far off the orginal topic.
Reguardless, it's encouraging and exciting to know
what we can expect from professional audio in
linux.
BTW, my interest in producing audio with a linux
based
environment is the Ardour mission statement
where
professional audio is a requirement.
How effective an audio environment can we build on
linux with jackd the high bandwidth, low latency
audio
server?
Earlier tonight, I ran the following tasks
symoultaneously:
*Rsync mirror via LAN
*Mastering of stereo file on Mac via 100mb LAN,
atalk
*'cp -R 2gig directory from channel A to
channel B
of
scsi raid controler
*Ardour; playback of eight audio channels
*switching virtual desktops and applications
windows,
'ctrl c + hold tab key infinitely' then
'alt +
f1,4'
like a mad man, and then checking yahoo mail
repeatedly
jackd started with 'jackd -R -v -d alsa -d hw:0 -p
512
-r 44100'
During a twenty minute stretch with the above
tasks
being done at the same time, I generated one
xrun.
The
"-p 512" is an exceptable latency for
me because I
use
an external mixing consol and build the studio
and
control room mixes from the input stages.
Anyway, my new point is that professional audio
production in linux is a reality.
ron
forms, and more
- Steve
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