Atto Expresspci Ul3d Dual Channel Ultra160 Scsi

SCSI Cards — Pro Tools 6.x for Mac OS X 10.2 Qualified SCSI HBA Cards — Pro Tools 6.x Systems for Mac OS X 10.2 (Jaguar) Although not necessary to achieve full track count, SCSI drives can also be used with Pro Tools LE systems. Note: SCSI devices are not supported with Pro Tools LE 6.0.2 for Digi 002 and 002 Rack. Pro Tools LE 6.1 or higher is required to use SCSI devices on 002 systems.

And I decided that knowing more about prices of 10K and 15K drives, as well as controllers, might help make a better informed decision, too 😉 There are problems mixing 1st gen Ultra320 and 2nd gen. Also, the UL3D is not really Ultra320 - it is dual channel if retail (a lot of people have OEM and are confused about which UL3D) Ultra160. The ATTO UL4D though IS designed to work and support the Ultra320 specification better. (However, ATTO only recommended the UL4 series for G5s. OWC has a UL4S for sale for $275.) WD doesn't compete against itself with its Raptor because it no longer sells SCSI, and it clearly has a very good drive, and probably the ideal boot drive (and it will work in future Mac, which keeps getting harder to do with SCSI).

I've used Raptor, I prefer 15K drive, and I don't even like older 10K SCSI for boot drive, (and refuse to use ATA for system). G4 MDD UL3D 4 x Atlas 10K/15K SoftAID 3 Mac OS X (10.4.7) iMac 20' Core Duo. The latest 15K.4 works 'better' on the UL4D, but first, do you need 143GB 15K? I would look at investing in 10K Raptor 150GB and SeriTek controller.

You can improve performance of your system if you keep one drive for boot (OS/Apps) and off load media data (even home directory) to 2nd drive. I like a 36GB 15K boot drive and then whatever I can afford in 10K drive(s) for data etc (I have tested a Raptor but don't own one, but if someone wants 85MB/sec, the Raptor is the way to go today for desktop users). A drive can 'sound funny' if the directory needs repair, too. I keep my 15K drives external and use 10K drives internally. Also, the latest drives with FDB can actually run hotter than their ball bearing sibling.

When any of my drives 'get finicky' I just zero them - and they really are next to indestructible almost. Heat does shorten the life of drives. OEM UL3D or retail?

The latest 15K.4 works 'better' on the UL4D, but first, do you need 143GB 15K? I would look at investing in 10K Raptor 150GB and SeriTek controller. You can improve performance of your system if you keep one drive for boot (OS/Apps) and off load media data (even home directory) to 2nd drive.

I like a 36GB 15K boot drive and then whatever I can afford in 10K drive(s) for data etc (I have tested a Raptor but don't own one, but if someone wants 85MB/sec, the Raptor is the way to go today for desktop users). A drive can 'sound funny' if the directory needs repair, too. I keep my 15K drives external and use 10K drives internally.

Also, the latest drives with FDB can actually run hotter than their ball bearing sibling. When any of my drives 'get finicky' I just zero them - and they really are next to indestructible almost. Heat does shorten the life of drives.

OEM UL3D or retail? And I decided that knowing more about prices of 10K and 15K drives, as well as controllers, might help make a better informed decision, too 😉 There are problems mixing 1st gen Ultra320 and 2nd gen. Also, the UL3D is not really Ultra320 - it is dual channel if retail (a lot of people have OEM and are confused about which UL3D) Ultra160. The ATTO UL4D though IS designed to work and support the Ultra320 specification better.

(However, ATTO only recommended the UL4 series for G5s. OWC has a UL4S for sale for $275.) WD doesn't compete against itself with its Raptor because it no longer sells SCSI, and it clearly has a very good drive, and probably the ideal boot drive (and it will work in future Mac, which keeps getting harder to do with SCSI). I've used Raptor, I prefer 15K drive, and I don't even like older 10K SCSI for boot drive, (and refuse to use ATA for system). G4 MDD UL3D 4 x Atlas 10K/15K SoftAID 3 Mac OS X (10.4.7) iMac 20' Core Duo. OP hasn't got back, or jumped into our 'discussion' but.

People have managed to damage an OEM UL3D by trying to flash one (there is no flashable firmware on OEM). The main concern is being sure to update to latest ATTO drivers as Apple does not include them in updates (though 10.4.x does have basic support built-in).

I wouldn't be surprised to see OEM UL3Ds 'break' with OS X if they have not already (checking the drive upgrade DB @ accelerateyourmac is always a good idea). The idea of using a Raptor vs SCSI - to allow air flow; to avoid pinching those SCSI cables (some of us have paid as much in cables and terminator as disk drive). Those thin 18/36' SATA cables are perfect for the MDD. I've found the front drive cage on the left to be ideal for my SCSI drives rather than the right side up against the CPU(s) (and not in direct path of Radeon 9800 if someone has one, which does push hot air out across the cpu and directly onto the ATA/100 drive cage). Nearly fried a 15K drive there. Which is why I think moving his drive, and re-zeroing it - is all he may need to do and that it is getting too warm where it is (change in temps is as bad or worse at times than the same constant temp, and SCSI drive do better 24/7 and with good air flow rather than a lot of hot-cold and start-stop). As a 'side note' - I learned from one user with 6 Atlas 15K IIs attached to Quad G5 with ATTO UL5D that even though the controller and drives are Ultra320, ATTO never tested that setup, and it was SLOWER with 3 drives per channel in stripped RAID, than using 2 drives on each channel.

For some reason three drives looks to be flooding or trying to send more than the UL5D can absorb or handle and causes excess resends and waits. Meaning we have to wait for UL6D? Or re-engineer the UL5D. The UL5D is basically just and only a UL4D with a PCI Express slot. (SATA side of the table has its own issues and growing pains as well.) It really is hard to not like or recommend a single or dual 10K Raptor for desktop. Or a nice fast 10K or 15K SCSI drive!

10K drives from both are able to offer sustained I/O in the mid-80MB/secs and offer a nice boost in performance for any system or user. Atlas 10K V 74GB and Raptor are both similar in price. $300 will buy 150GB Raptor, or 143GB Atlas, or 73GB 15K II Atlas (@ 96MB/sec ea. Is also 'overkill').

One drive on UL3D will work. Mixing a 15K.2 Cheetah and 15K.4 or.5 together might not. Or 10K.5 and 10K.7 And a Raptor will slid right into any G5 or later system. G4 MDD UL3D 4 x Atlas 10K/15K SoftAID 3 Mac OS X (10.4.7) iMac 20' Core Duo.

I think you are the.very first. person I have heard say that they were not totally satisfied with a Raptor!! (outside of me, but that was 3 yrs ago with a 36GB beta).

Spoiled by having used 15K drives or something? П˜‰ The 74GB was ATA with a bridge and with TCQ which doesn't help desktop usage patterns.

The new unit is now 16MB cache, NCQ and native SATA and just paired down 150GB. I have done RAID with SCSI - both 10K and 15K and RAID is over-rated too! Just ask the folks on the StorageReview forums or in their FAQ. (I find a nice good 75MB/sec 15K boot drive to be perfectly fine for me.) Actually, there is a ceiling and problems trying to get SCSI's parallel technology to work at higher speeds, which is why there is Serial Attached SCSI now. Also, SATA's Port Multiplier seems to work really well even with 3 drives (as fast as direct connect) or even 5 drives.

Lot of timing issues trying to do 68-pin communication (136 total wires). It is horrible and obscene what I have in my closet and spent on cables, controllers, the whole mess would have made a down-payment. G4 MDD UL3D 4 x Atlas 10K/15K SoftAID 3 Mac OS X (10.4.7) iMac 20' Core Duo. I feel you on that one about the $$$$$.

I looked into getting some SCSI disks for my workstation as a boot disk but it's just so. pricey. I had a 74 gig raptor and it was nothing special.

It's only like a 'tad' faster than the fastest sata disk. Only thing about that is the RPM. You could prob. Get 2-3 sata disks for the price of a raptor and run in raid and it'll be faster WITH redundancy.

I think it's funny how these sites like storage review play down RAID. RAID 1 is uber usefull, RAID-0 for scratch disks, video scratch, RAID-5 for storage, RAID-10 or 50 for databases.

I run RAID-0 right now because my controller does either jbod, 1, or 0. I'll have to ponny up $$$ for a highpoint for RAID-5. I'm considering waiting though because of HD-DVD and getting an array setup for that, but that's in the future.

Atto Expresspci Ul3d Dual Channel Ultra160 Scsi Hard Drive

Maybe I'll break the RAID-0 array and go with RAID-1 1 TB over 4 500 GB SATA disks. They are on sale now for about $200 a pop. You're right about SCSI's parallel nature being much more suited for multiple I/O requests like a server environment. I am a huge fan of IBM SCSI. Haven't played with SAS yet. I think the only reason storage review plays down RAID is because of the parity calculations, which if you get a good controller, is all hardware based. Other than that raid is my friend!

I may be quite stupid, in that top-notch, server oriented ultra SCSI expert environment, but having had a MDD-G4 as well, I remember the 4-64-bit 33MHZ PCI sockets and the 167 MHZ system bus. My question now is what sense it makes, to put a Ultra-SCSI-Card into a 33 MHZ socket, does anything get faster by that, beyond the allowance of the socket itself?

Talking in solutions, my solution was to use the 2 ATA 100 with 2x250 8GB 7200 rpm IDE, in softraid which gave me a 30% increased data rate. Best regards redage.

Atto Expresspci Ul3d Dual Channel Ultra160 Scsi

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