SCSI For Digi 001¿¿¿¿¿¿¿¿¿

[Dog BBQ]

I'm curious if a SCSI Card and drive are necessary for the New Digi 001 system???

The Digi 001 site Doesn't list a SCSI Card or drive for the required Equipment??

Can I use a IDE Drive in a G3??????

What You Will Need:

Apple Power Macintosh 9600, G3*, or G4**(G3/G4highly recommended)
A minimum of 128 MB of RAM (196 MB recommended)
Mac OS 8.6 (Mac OS 9 is not currently supported)
CD-ROM drive for software install
The desire to make music...


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LCSProductions@att.net
<BLOCKQUOTE><font size="1" face="Arial,Helvetica,sans-serif">quote:<HR>The Greatest Risk in Life is Doing Nothing<HR></BLOCKQUOTE>

[Steve Rosenthal]

SCSI is not required for 001/PTLE.

A 7200RPM ATA drive with UDMA support will work. Remember, though: ATA is an internal bus only. You are limited to a total of 4 devices (2 per channel), which includes your CD/DVD ROM drive. If you want to expand your disk susbsytem beyond that, you'll probably want to eventually go to SCSI.



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--Steve Rosenthal, Digidesign ETS

[Dog BBQ]

Thanks for the Speed in the Reply I take it your running faster than a 10,000rpm LVD Wide drive!!!!!!!

Are there any specs for the ATA drives available???

is the Size of the drive an issue???can I have 2 18gig ATA UDMA along with my cd and System Drive???

[rwest]

What would the advantage be of having a SCSI card and hard drive on the 001? I was told that it is a good idea to have these with the 001. SCSI cards are still pretty high in price aren't they? I don't want to pay $400 for a SCSI card and $1000 for a glyph drive unless there's something really needed there. Comments????

[Steve Rosenthal]

Dog BBQ,

There is no capacity limit, only a limit on the physical number of ATA devices which is two per bus.

rwest,

As I said previously, there is no requirement to use SCSI. There are many advantages that SCSI holds over ATA, though they are probably not that relevant to PTLE/001 systems. The only advantage that I can see is expandability and portability. ATA is an internal bus only and it's limited to a total of 4 devices, whereas SCSI can support up to 30 devices using a wide, dual-channel bus. ATA limits you to a more or less permanent, unmovable drive setup. If you wanted to take your sessions back and forth between your system and other people's systems, then SCSI is the only real option at this point.

Of course, you can always add a SCSI card and SCSI drives if you need to. But for the money, ATA is a good way to go with LE/001.




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--Steve Rosenthal, Digidesign ETS

[rwest]

Thank you very much. I do appreciate your honesty.

RWest

[Frank S]

Apologies in advance for a newbie type question and for resurecting an old topic. Ok, so maybe I won't do an external SCSI hard drive to start with for the 001 system, but probably will add one on down the road. Now my G4 will have a SCSI interface to run the CD-R for backups. Can I add on the external hard drive to this (? daisy chain) or do I need another SCSI card? Do I need a different interface to run fast/wide SCSI?? What should I do in the meantime with regards to partitioning or not partitioning the internal drive?? I've heard some conflicting opinions on this.

[Disco_Doctor]

There are many advantages that SCSI holds over ATA, though they are probably not that relevant to PTLE/001 systems.

Hey Steve - just out of curiosity, don't ATA drives put a load on the CPU during reads and writes? If this is true - wouldn't using SCSI alleviate some of that load, thus providing more CPU bandwidth for the host based plugin processing?

If you wanted to take your sessions back and forth between your system and other people's systems, then SCSI is the only real option at this point.

That's not really accurate the way you worded it. People can burn CDR's of their session for transfer to another system, or if they have a new G4, they could copy the session folder over to the internal DVD-RAM disk and then take that disk to another location...

http://www.digidesign.com/ubb/images/icons/smile.gif

[Steve Rosenthal]

Frank,

Never fear about rookie questions. Yes, you'll be able to add a SCSI drive to your SCSI bus at a later time by daisy chaining. There are some rules you may have to follow, so when you're ready to do it, post here and we'll sort it out. It's really not hard at all, just a matter of observing some rules about cabling and termination.

Partitioning: It can enhance seek performance by limiting the travel of the head stack. The trade off is smaller volume sizes to store your data on. Depending on the capacity of your drive and your space versus performance requirements, it can be a big help. Just keep in mind that you will only see benefits if you record or play back from only one partition at a time. If you straddle partitions, you are negating the performance gains by making the heads travel over the entire drive.

Disco,

People can burn CDR's of their session for transfer to another system, or if they have a new G4, they could copy the session folder over to the internal DVD-RAM disk and then take that disk to another location...

You got me on a technicality. http://www.digidesign.com/ubb/images/icons/smile.gif

Sure, you can do that. I guess I was thinking in terms of my own situation: I'm in the middle of a session that's about 20GB total. Easiest way to move it around is by swapping the SCSI drives between workstations.

You have a point about ATA and CPU overhead, but in theory, DMA transfers are supposed to limit -- if not eliminate -- CPU control of the data transfers. Milage will vary, of course.

Hope this sheds light on things for both of you.

--Steve Rosenthal, Digidesign ETS

[This message has been edited by Steve Rosenthal (edited 11-26-99).]