Print 64 comment(s) - last by rippleyaliens.. on Jan 23 at 1:39 PM

Seagate's Savvio 15K hard disk drive

Seagate's Savvio and Cheetah at 15K compared

The Savvios compared at 10K- and 15K-RPM
Seagate claims that its newest 2.5-inch 15K-RPM hard drive is the fastest in the world

Seagate Technology has announced what it claims to be “the world’s fastest hard drive” – the Savvio 15K with a seek time of a mere 2.9 ms. The new 15K-RPM addition to the Savvio family offers a number of advantages over 15K-rpm 3.5-inch drives including size and weight (due to 2.5-inch form factor), 30% decrease in power consumption (5.8 watts at idle), and reliability (1.6 million hour MTBF).

 “Seagate is committed to delivering solutions that will meet the needs of today’s demanding IT environment, and no product demonstrates this better than the Savvio 15K drive,” said Sherman Black, senior vice president and general manager, Seagate Enterprise Compute Business. “The development of the 2.5-inch Enterprise form factor represented a new way of thinking. Now, with the added number of performance and capacity choices offered, many of the leading enterprise system makers are transitioning from 3.5-inch to 2.5-inch form factor enterprise solutions.”

The move to small form factor enterprise disk drives was driven by data center requirements for greater storage performance density while focusing on lowering power consumption and cooling costs.

“The trend in IT is to scale down the physical size of components while scaling up capacity and performance,” said John Rydning, IDC’s research manager for hard disk drives. “Seagate’s first generation 2.5-inch 15K-rpm HDD is fitting with this trend, delivering fast I/O performance in a small package to meet the needs of demanding server applications.”

The Seagate Savvio 15K drives are shipping today in 36GB and 73GB capacities through OEM customers. HP is now shipping Proliant systems with 15K Savvio drives. The Savvio 10K.2 drive will launch in the channel this quarter as a replacement product for Savvio 10K.1 and as a transition path from Cheetah 10K.7 drives.

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RE: cool... i guess
By Comdrpopnfresh on 1/16/2007 10:44:18 AM , Rating: 2
its the other way around- they're faster because they're smaller- less of a radius means a motor has to provide less torque to spin the platters at the same speed- faster reads are because the head has to move a lot less of a distance...

RE: cool... i guess
By kextyn on 1/16/2007 11:30:36 AM , Rating: 2
That's not exactly true. The seek time is probably faster because of the shorter distance for the head to travel. But sustained data rates will be slower because the outside edge of a 2.5" platter will be spinning slower than the outside edge of a 3.5" platter if both of their motors are spinning at 15k RPM.

RE: cool... i guess
By mindless1 on 1/16/2007 11:54:55 AM , Rating: 1
They're faster because of the higher RPM. That higher RPM can be maintained more reliably, with higher MTBF because the platters are smaller.

RE: cool... i guess
By Axbattler on 1/16/2007 7:16:38 PM , Rating: 2
If RPM were the sole variable in HD performance, then all 7200RPM drives would perform alike, all 10k RPM drives would perform alike, etc.

But it's nowhere the case. I had a venerable 2nd Gen Cheetah (10k RPM), and while it was one of the fastest HD at the time, a modern SATA drive would stomp all over it in desktop applications.. and most likely server applications as well. Without even going that far back, compare the three generation of Raptors. Or even the 'silent' improvement made to the 2nd gen Raptors.

Spinddle speed is a highly influencial variable. But density, firmware, seektime, cache, number of platters can all affect performance (some more than others).

RE: cool... i guess
By IntelUser2000 on 1/16/2007 8:36:40 PM , Rating: 2
a modern SATA drive would stomp all over it in desktop applications.. and most likely server applications as well.

(FU AT/DT and the stupid quote system)

Probably not. Newer SATA products won't make up for such a big difference. And newer server products based on SAS will probably be faster. If SCSI/SAS products were slower than SATA drives in workstation/server apps as much as it did in PC apps, nobody will buy them.

RE: cool... i guess
By Axbattler on 1/17/2007 9:01:30 PM , Rating: 2
Keep in mind that I am talking about a drive from 1998.

Even the fastest SCSI drive is not future proof ;)

RE: cool... i guess
By rippleyaliens on 1/23/2007 1:39:57 PM , Rating: 2
Well, here is the Real Deal Info. A 15 k drive, vs a 10k raptor in a Desktop PC. It is hare to really show teh clear differenc. BUT if you put the Raptor in a Server environment, in which you have multiple READS /Writes. THat extra 5k, shows a clear difference. More so, the disk I/O, are just clearly supperior with a faster hard drive. MEaning, doing more than just copy / pasting.
Disadvantage with SATA is that for each drive, there needs to be a channel. VERSUS with SAS, each channel can support multiple drives.

There are some good SAS/SATA controller out there. The difference comes also, when you RAID the drives. I have at work, a 12 drive 500gb, sata array. Using the SEAGATE lastest GEN, with the command q, etc... Now in a raid 10 array, i get 3tb, BUT versus my 6 drive SAS 15k raid 10 array, the SAS litteraly SMOKES my sata array. Sata was not designed for anytype of HEAVY sustained READ / WRITE, condition. Now some PC stuff, but heavy workstation / server class IO.
With VISTA now, they are trying everytihgn in the world to speed up the OS, but it is still bottlenecked by the DISK speed / I/O. You best believe i will get these new drives. IN a 2 u CHASIS, i can put 12 drives. IN a raid 10, that is a sustained 900 (non cached)I/O Per second. 4-500 MB sustained Transfer rate. yah, that is very fast.

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