View Full Version : ultra 160 in a g4

05-30-2001, 10:54 AM
what would i need in the way of parts to put ultra 160 in a g4? would i be better off getting it from apple, or should i order the tower with the cheapest hard drive and swap out? how would i go about it? i'd like at least 18g of storage and speed is the most important thing. should i get the dual card [atto?] and two drives [the 15k cheetahs?] striping across? would i get a drastic increase in speed over apple's drives [also 160s]? i would also like to know which cables and all other needed stuff i would need to do it aftermarket. and since we have yet to order the g4, are there any other things i need that i could get from apple in the initial purchase?


05-30-2001, 12:53 PM
You would be better off getting it here. If you like working with Mac/SCSI hardware you can save a TON of money and get a much better (or equal) setup.

Get a G4 with the smallest/cheapest drive you can. Leave it in there, you can use it as a boot and/or backup drive. Your new G4/Sawtooth/PC133 can hold a total of 4 drives in on the bottom + ZIP bay (you could put a HD here) + DVD (you could put a drive over the DVD- but that is pushing it).

The dual channel card is great, but you only need this is if you are planning to go to several x15 drives. I think the single channel U160 can handle (bandwidth wise) about 4 x15 without any bottlenecks... I think Gurus has both a plan ATTO U160 Single and a ATTO U160 Single+RAID (with cables, term & SoftRAID - or other RAID software). You can boot off a single SCSI drive, but the new Macs (still) dont like booting off RAIDs - stripped or mirriored. I think a Mirrorred drive can work, but maybe not so well. Of course stripped and/or mirrered RAID setups can work well for data, apps, scratch, etc...

You do not need any mounting brackets, but you will need screws (4 per drive), SCSI jumpers and make sure you get some good a good cable & terminator with your SCSI card. I think all the ATTO cards that gurus sell are X compatible and you should probably stick with the Apple drive setup software - unless you want to setup a RAID.

SoftRAID is http://www.macgurus.com/ubb/rad.gif http://macgurus.com/infopop/emoticons/icon_biggrin.gif

06-01-2001, 05:10 AM

unless you are going to scale up beyond 4 drives in a striped volume, I see no real payoff for a dual-channel considering its expense. An ATTO UL3S works great, and costs $150 less. You also buy half as many cables and terminators.

now. If you DO plan to scale up, then definitely: bus duplexing even w two drives is worthwhile. It really starts to show its benefits with four drives and up, though.

you will need an ATTO (http://www.macgurus.com/shoppingcart/showrampage.cgi?attoboards.html) UL3D or UL3S.

you will need either two GD4800 (http://www.macgurus.com/shoppingcart/obj_show_page.cgi?mgscsiteflonintcables.html) cables or one one GD1200 (http://www.macgurus.com/shoppingcart/obj_show_page.cgi?mgscsiteflonintcables.html), depending on whether you are building for dual-channel or single-channel. Likewise, you will need one or two GD6299 (http://www.macgurus.com/shoppingcart/obj_show_page.cgi?mgscsiteflonintcables.html) terminators.

then you need your drives. The fastest drives on the planet, period, are Cheetah X15's (http://www.macgurus.com/shoppingcart/showrampage.cgi?mg_hdseagates.html). A pair of these striped in RAID 0 will deliver close to 75MB/sec sustained reads and writes in a new Sawtooth.

finally, if you do not already own it, you need a copy of SoftRAID (http://www.macgurus.com/beta/obj_show_page.cgi?mgscsiraid.html), assuming you plan to stripe or mirror. If you intend to use your drive(s) as single fixed volumes, Drive Setup 2.03 or later is fine (included with OS9.1).

no need for mounting brackets. Just four screws per drive, included with your order at no charge.

here's a couple of real reasons to order after-market from the Gurus rather than from Apple:

1. five year warranties on your drives and ATTO card. Lifetime warranties on your cables and terminators. Compare this to Apple's one year warranty.

2. control over your hardware: what drives is Apple bundling this week? Are they 10k or 7200 rpm? You can assume they are not Cheetah X15's. What cables? You can assume that Apple does not bundle Granite hardware in their machines.

3. who would you rather talk to? The Gurus or Apple?

I may be biased, but I would rather talk to us, any day.