Hard Drive Quandry

13 replies [Last post]
Roy Brotherton
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Joined: Sep 19 1999

Please help - I want to add a second hdd purely for editing & can spend around £120.00

I like the look of the MAxtor Range, but seem to have to choose between the 13.6GB Diamond Max 6800, which according to the box states it is "AV Ready", and is a 5400rpm, and the Diamond Max Plus 5120 15.3GB which spins at 7200rpm, but does say "AV Ready".

As both are roughly the same price, which way should I Go?

Roy Brotherton
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Joined: Sep 19 1999

Sorry, the 7200 does NOT say AV ready.

Dave
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Joined: Apr 8 1999

Look for information on the drives that quote the sustained transfer performance. I would expect both to be OK but check this figure against what your capture card requires. If the 5400 drive is good enough there will probably no advantage in going for the faster drive. Also slower drives can be more reliable.

------------------
marsh_dave@hotmail.com

bcrabtree
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Joined: Mar 7 1999

You don't tell us what sort of editing, but if it is nothing out of the ordinary, then even the slower drive should be just fine.

Most drives will deliver well over 8MB/sec, and that is plenty good enough for DV and for most M-JPEG captures, too.

Heck, even the drives before ATA33 were fast enough if the system was set up well, so these newer drives should walk it.

The only comment I would make is that virtually ALL drives you buy today are ATA66 - which your PC won't recognise (most likely), and which will, therefore, end up being run at slower than its top speed.

Download a small DOS utility from the HDD maker's web site, though, and the drive can be set to report itself as being ATA33 - which the motherboard will recognise, and treat as a drive that it will allow to run very speedily.

Oh, and ALL ATA66 drives MUST be connected using an 80-were data cable, NOT a standard 40-wire ATA cable. Ignore this at your peril - you'll almost certainly end up losing data and having to scan and rescan the drive for errors.

Bob C

Dougie Leaver
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Joined: May 13 1999

Bob,
You only need the cable if you are running the drive in ATA66 mode.
If you down grade to ATA33 then a normal cable is ok. I have just
fitted a Maxtor 27.2 G drive and it runs as ATA33 Ok with transfers
around 15 Meg a second and no problems on a normal cable.
Dougie.

bcrabtree
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Joined: Mar 7 1999

Dougie,

You are utterly and completely wrong - though I accept you may only realise this is the case when Windows forces you at some unknown time in the future to do a surface scan of the drives (a long and tedious business) and you remember what I have said here.

You don't always get knocked down when you cross the road blindfolded, but one day....

And, even if I am wrong (and I am not), it is not worth your while taking the chance.

Bob C

bcrabtree
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Joined: Mar 7 1999

Posted in error

[This message has been edited by bcrabtree (edited 17 October 1999).]

Dougie Leaver
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Joined: May 13 1999

Bob,
Can you expand on the above message. I notice the Maxtor sight has
changed from not needing the 80 wire cable to saying it is a good idea
to use one for data security. There is a small piece in the mag but I
would like to know whats going on.
Dougie.

Unicorn
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Joined: Apr 12 1999

Also, as I'm intending to drop in another drive soon, which will be ATA/66 rated but on an ATA/33 controller, where do we get 80-way cables from?

P4-3.06/2GB RAM/2500GB IDE/SATA. Avid Media Composer, Liquid Edition, Premiere 6, Lightwave, Vue 6, eyeon Fusion 5. DV and HDV editing/compositing.

Dougie Leaver
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Joined: May 13 1999

Unicorn,
Ive had all sort of problems finding these cables. My local
computer dealer have now managed to order some from, I think
Lightwave. As they are little more than the normal price of IDE cables
it makes sense. I wish Bob would leaborate on what problems he has
come across.
Dougie,
27 Gig of video files and worried!!

david fuller
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Joined: Jun 19 1999

Whilst you are at it, can I ask if my new, 'free' from CV, HDD caddy (which arrived yesterday) will handle an ATA66 drive, assuming of course I use the 80 core cable to connect the caddy chasis to motherboard?

DVdoctor
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Joined: Apr 1 1999

I run with the 80 conductor connected to the caddy. even though the inside of the caddy is 40 conductor. Works just fine.

What seems to happen is that the higher speed spec had problems onthe transfer it the older 40 conductor cable is used. THe extra lines are shielding lines that reduce the errors on the signals. The cable can be detected by the presence of a connection that is in the cable so some of the drive controller combinations will not go into ultra66 mode without it.

John

rbarry
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Joined: Mar 27 1999

I have just installed a second hard drive on my system, but not until i had followed most of the threads in this section of the message board. The ide cable that came supplied with the fijitsu 17.3 ata66 hard drive was only a 40 wire cable. Why is this cable supplied with the hd, if it is known to cause problems. I was unsure as to whether or not the extra wires ran alongside those sealed in the plastic binding of the ribbon strip, and that this was the correct cable after all. I have now tracked down the correct cable (ask at most retail stores and no one will know what you are talking about, even when shown Bob's explanation for thier necessity) and the cable does have 80 wires which are individually sealed in the plastic strip, so if you are unsure, count the number of ribs in the cable. One word of caution, the connectors on the ends of the cable i bought had 39 pins open, but with the 40th one,(located in the centre of the connector) not stamped out of the plastic moulding. This was ok for connecting to my master and slave drives as the corresponding pin is not present on the hard drives. However, on the mother board, all 40 pins are present. If all 80 wire cables are like this, make sure you drill a hole in the blanked off one to avoid damaging the motherboard.

bcrabtree
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Joined: Mar 7 1999

David,

Concerning our HDD caddies and the 80-wire cables.

As you might imagine, I nearly had kittens when I realised - a good while back - that there might be an issue here.

Especially since I realised the hard way - by installing a Fujitsu 17.3GB ATA66 drive (set to report itself as ATA33), into one of our caddies, and NOT using an 80-wire cable to connect it to the motherboard.

I had all sorts of errors, which I was completely convinced would not go away, simply by switching to an 80-wire cable, because the cable inside the caddy, I knew, was 40-wire.

Well, I was wrong. Absolutely no problem at all - AS long as the cable from motherboard to caddy is 80-wire.

I've now spent a good deal of time checking this and have - as the final proof of the pudding - now been running the Fujitsu drive, in caddy, for a good few weeks, with no nasty side effects.

Bob C