iXBT Labs - Computer Hardware in Detail

Platform

Video

Multimedia

Mobile

Other

February 2001: HDD IDE (Ultra ATA/100)

February 16, 2001



At last we are ready to introduce you the next review on hard discs with IDE interface. Some delay with this article can be explained, first, by changes in the test system and, second, by alterations in test method. But let's start from the very beginning. So, today we have discs with 20 GB record density per platter. We have already tested Quantum, Seagate and Samsung discs. All discs taken were of the same size - 40 GBytes. Except Barracuda ATA III - the tests had been carried out before mass sales started, that's why everything what we could get was a 10 GBytes disc. In the nearest year we will add Western Digital and Fujitsu discs, if possible. Well, meet the contestants.

Quantum

AS
AS

Fireball Plus AS

lct20

lct20

lct20

For this review we have chosen two models - Fireball Plus AS and lct20. The both extend a discs series with a spindle rotation speed equal to 7200 rpm and sub 7200 (i.e. 4500) rpm correspondingly. The cases are identical, they differ only in stickers. The record density as compared with their predecessors - Fireball Plus LM and lct15 - increased up to 20 GBytes per platter, other features remain the same: Quiet Drive Technology, Quantum's Shock Protection System II and Data Protection System. A new thing is optional hydrodynamic bearings for noise reduction. The difference in my opinion is practically inaudible.

Samsung

Samsung
Samsung

SpinPoint V20400

Here we have a model from the last series - the SpinPoint V20400 (SV20400) with 5400 rpm spindle speed. Since it is the first modern model of Samsung hard discs in our tests I will describe it a bit deeper. A set is standard, but names are different.

  • NoiseGuard technology, as you can see, is intended for noise elimination. The idea concludes in usage of sound-absorbing materials and special form of the lid. Besides, the site of the company contains a lot of interesting information devoted to HDD acoustic characteristics.
    Noise Laboratory

    In particular, they confirmed my opinion concerning the fact that difference in noise of the modern discs is impossible to be told "with the naked ear". Noise from a modern discs makes 3-4 bels, a power unit's fan makes noise at the level of 3.4 bels, and average noise level in the room makes 4-5bels. There you can see a photo of a lab where you can notice such difference (10 mics in an isolated camera).

  • S.M.A.R.T. support.
  • SSB (Shock Skin Bumper) and ImpacGuard. SSB is a layer which eliminates effects from bumps at the expense of elongation of the effects, and correspondingly, reduction of amplitudes. In simple terms, it is some elastic element bulging when "kicked".
  • SSB

    ImpactGuard prevents a contact of a head with a disc in case of bumps.

Seagate

Barracuda ATA III
Barracuda ATA III

Barracuda ATA III

U5

U5

U5

As for Seagate products today we are dealing with two hits - Barracuda ATA III, is the next specimen of the 7200 rpm series, and a successor of the "U" series - U5 series. As I have already said, it is only 10 GBytes. As usual there is 3D Defense System, optional liquid bearings. For U5 - a proprietary plastic shell - Seashell.

Full data on all series can be found in the table.

Tests

First, I will describe what has happened with our test system. We have received quite a lot of letters where you are complaining that the tests of modern discs are carried out on an outdated system (Chaintech 6BTM with CPU Intel Pentium II 400MHz). That's why we decided to change the testbed. As a base we took the i815E chipset, since it supports ATA/100 on the chipset level, plus Intel reputation, plus integrated video. Besides, we took Iwill WO2-R board due to the fact that Iwill products proved its stability. Onboard ATA/100 RAID-controller from American Megatrends played maybe a vital role (a test of this controller will soon appear on the site).

As an operating system we took Windows 2000 Professional Service Pack 1. Here I followed one professional site devoted to storage devices - StorageReview. So, we can test discs with NTFS and FAT32 under control of one OS. Here you can see what it poured into:

  • Mainboard Iwill WO2-R (BIOS ver. 6.00PGN);
  • CPU Intel Pentium III 800EB;
  • 128 MBytes PC133 SDRAM;
  • OS MS Windows 2000 Professional SP1.
  • HDD IBM DTLA 307015.

Now up tests. The Adaptec ThreadMark test doesn't give a real idea on disc speed. First, it gives out one average result, and it's difficult to understand to what reason the results of one disc are higher, and of another are lower. Besides, when testing modern discs a correlation of results of Adaptec ThreadMark test with Ziff-Davis WinBench results (a test which reflects completely both physical characteristics of the disc speed (speed of linear reading and access time) and results of operating with a set of standard applications) have disappeared. That's we replaced Adaptec ThreadMark by Intel IOMeter test. Unlike WinBench, this test is entirely synthetical, what on one hand gives freedom to a tester, and on the other hand, allows measuring everything (i.e. to set a such test configuration which will never be in real operation of a HDD). If you want to get some details on this test, see the description.

To cut a long story short, I should say that we used three access patterns, corresponding to usage of a disc in a Workstation, File Server or Database server. There are 5 load levels which are differing in the number of simultaneous requests (Outstanding I/O).

Loads
Linear 1 Outstanding I/O
Very Light 4 Outstanding I/Os
Light 16 Outstanding I/Os
Moderate 64 Outstanding I/Os
Heavy 256 Outstanding I/Os

So, today we have the following tests: Ziff-Davis WinBench 99 for FAT32 and NTFS (three measurements, one average result) and Intel IOMeter (measurements on a unformatted disc). As a reference point for the test we used IBM DTLA disc.

Now you can see the results (traditionally we are starting with WinBench). So, look at the physical characteristics of the discs.

Disk Transfer Rate: FAT32
Disk Transfer Rate: NTFS

Well, the lct20 is behind all the others. It was expected due to the lower rotation speed with the same record density. The Seagate shows the highest linear speed in its category - we have already got used to it. Unexpectedly , the DTLA has outperformed the Quantum Fireball Plus AS in linear read speed.

Disk Access Time

The most wonderful thing is that the IBM left all other discs behind in access time, the Seagate comes nearly the last!!! According to the specs, the Barracuda ATA III has an access time equal to 8.9 (Average Seek) + 4.16 (Average Latency) ms = 13.06, and not 14.8 ms, the U5 has it 8.9 + 5.6 = 14.5, and we see 19.1 (and even 19.5 in NTFS)! For the Quantum Fireball Plus AS the specs indicate 8.5 + 4.17 = 12.67, we have reached 13.5 ms. Not too much.

Now let's turn to the graphs.

as-fat

Quantum Fireball Plus AS (FAT32)

as-ntfs

Quantum Fireball Plus AS (NTFS)

The Quantum Fireball Plus AS attracts attention to its broken line for the first 10 GBytes. Since I have received an unpacked disc, it may be a consequence of active testing.

barr-III-fat

Seagate Barracuda ATA III ST310215A (FAT32)

barr-III-ntfs

Seagate Barracuda ATA III ST310215A (NTFS)

Here the situation is even worse.

Now we are applying to the discs with the spindle speed equal to 5400 rpm and lower.

lct20-fat

Quantum lct20 (FAT32)

lct20-ntfs

Quantum lct20 (NTFS)

The Quantum lct 20 shows almost ideal graphs.

sv-fat

Samsung SV4084H (FAT32)

sv-ntfs

Samsung SV4084H (NTFS)

The Samsung. Everything is good but for the first part of the graph. It seems that high record density and low price were achieved at the expense of quality. However, it is not so bad, the disc is not intended for the high-level market.

U5-fat

Seagate U5 ST340823A (FAT32)

U5-ntfs

Seagate U5 ST340823A (NTFS)

The Seagate U5. The graph is perfect.

Now let's see how the contestants are dealing with applications.

<IMG SRC=
Disk WinMarks: NTFS

Among the discs with 7200 rpm the Quantum Fireball Plus AS managed to outperform the Barracuda ATA III on the Business Disk WinMark probably due to the lower access time. Moreover, the Seagate lagged behind the IBM and the DTLA. And on the High-End Disk WinMark test the Barracuda could win only over the Quantum and only due to the usage of FAT32. I think that it happened because a tree-like directory structure in the NTFS implies the higher number of head movements. The IBM DTLA is beyond the competition. This advantage, though, with FAT32 used was reached mainly due to incredible results in the FrontPage 98. Nearly 160 thousand bytes per second!!! It's closer to the ATA/200. Note that the other discs exceeded theoretical threshold. Like in the case of the discs with ATA/66, it can be explained by operation of cache system of the Windows 2000 itself. The fact that the results with the NTFS are decent opposes it, though.

Now we are turning to the slower discs.

The lct20 is a clear outsider (128 KBytes buffer - it is especially noticeable on the applications such as Adobe Photoshop working with huge files), the U5 is a clear favorite (it managed to win even with the relatively low access time). The advantage is quite big on all applications and with usage of the both file systems. The Samsung is just in the middle.

The results' table can be checked here.

The most mysterious test is Intel IOMeter. First, let's see how our discs will act in the Workstation conditions.

Linear
IOps MBps Average Response Time (ms) CPU Effectiveness
Quantum Fireball Plus AS
88,040148
0,687814
11,35692
137,356719
Seagate Barracuda ATAIII ST310215
73,295286
0,572619
13,641913
52,303565
Quantum lct20
60,529603
0,472888
16,519269
142,790495
Samsung SV20400
77,993749
0,609326
12,820047
118,02088
Seagate U5 ST340823A
59,199271
0,462494
16,890508
132,652279
Very Light
IOps MBps Average Response Time (ms) CPU Effectiveness
Quantum Fireball Plus AS
93,031482
0,726808
42,992306
151,890691
Seagate Barracuda ATAIII ST310215
77,338928
0,60421
51,715299
51,140325
Quantum lct20
65,253594
0,509794
61,297725
159,107438
Samsung SV20400
84,765427
0,66223
47,185015
151,773199
Seagate U5 ST340823A
61,581848
0,481108
64,951014
162,89854
Light
IOps MBps Average Response Time (ms) CPU Effectiveness
Quantum Fireball Plus AS 113,694247
0,888236
140,70099
154,264152
Seagate Barracuda ATAIII ST310215 91,769552
0,71695
174,329067
59,368332
Quantum lct20 83,665793
0,653639
191,211471
150,534058
Samsung SV20400 84,723573
0,661903
147,210676
151,027213
Seagate U5 ST340823A 75,7768
0,592006
211,141442
153,744792
Moderate
IOps MBps Average Response Time (ms) CPU Effectiveness
Quantum Fireball Plus AS
116,058518
0,906707
551,243138
136,058836
Seagate Barracuda ATAIII ST310215
105,907884
0,827405
604,073305
61,030835
Quantum lct20
96,188164
0,75147
665,07875
152,226795
Samsung SV20400
125,466356
0,980206
509,950568
147,55768
Seagate U5 ST340823A
96,007042
0,750055
666,312873
157,397874
Heavy
IOps MBps Average Response Time (ms) CPU Effectiveness
Quantum Fireball Plus AS
133,408503
1,042254
1914,97297
131,440708
Seagate Barracuda ATAIII ST310215
121,076686
0,945912
2111,52878
62,929811
Quantum lct20
102,176711
0,798256
2499,019742
144,913558
Samsung SV20400
134,125425
1,047855
1907,340114
148,14116
Seagate U5 ST340823A
106,755605
0,834028
2393,62426
134,995203

The lower Average Response Time, the higher the number of transactions per time unit. And since Average Response Time depends on access time, the Seagate discs are inferior. Interestingly, that the U5 in some cases yields to the lct20.

Since for each model there are the same five tables I decided to put the results on a separate page. Here I will make short conclusions.

Server. Nothing has changed much. The only thing is that the Samsung leadership among 5400 discs has become unquestioning, it is faster even than the Barracuda ATA III, and with high load the disc comes forward. It is a good sign of high quality firmware. And the U5 could reach the lct 20 only with the maximum load.

Database server. The Samsung is an absolute leader!!! The Seagate has stepped down yet more.

It is quite a funny test but its sense is not still clear for me. I will be glad if you share your opinions, and now I will be guided by the Ziff-Davis.

Conclusion

The long-awated Barracuda ATA III turned to be a disc which entirely corresponds to Seagate - high linear read speed comes together with rather big access time. If you are working with huge streams I can recommend this disc. The Quantum Fireball Plus AS suits nearly all of you. Among 5400 disc the Seagate U5 remains a leader, despite the IOMeter results. Since the Samsung costs not much, the disc will perfectly suit entry-level office systems. By the way, as for reliability of the Samsung discs they say that there is 1-1.5% of the discs returned during the guarantee period (3 years). As for the lct20 I can say nothing encouraging.


Write a comment below. No registration needed!


Article navigation:



blog comments powered by Disqus

  Most Popular Reviews More    RSS  

AMD Phenom II X4 955, Phenom II X4 960T, Phenom II X6 1075T, and Intel Pentium G2120, Core i3-3220, Core i5-3330 Processors

Comparing old, cheap solutions from AMD with new, budget offerings from Intel.
February 1, 2013 · Processor Roundups

Inno3D GeForce GTX 670 iChill, Inno3D GeForce GTX 660 Ti Graphics Cards

A couple of mid-range adapters with original cooling systems.
January 30, 2013 · Video cards: NVIDIA GPUs

Creative Sound Blaster X-Fi Surround 5.1

An external X-Fi solution in tests.
September 9, 2008 · Sound Cards

AMD FX-8350 Processor

The first worthwhile Piledriver CPU.
September 11, 2012 · Processors: AMD

Consumed Power, Energy Consumption: Ivy Bridge vs. Sandy Bridge

Trying out the new method.
September 18, 2012 · Processors: Intel
  Latest Reviews More    RSS  

i3DSpeed, September 2013

Retested all graphics cards with the new drivers.
Oct 18, 2013 · 3Digests

i3DSpeed, August 2013

Added new benchmarks: BioShock Infinite and Metro: Last Light.
Sep 06, 2013 · 3Digests

i3DSpeed, July 2013

Added the test results of NVIDIA GeForce GTX 760 and AMD Radeon HD 7730.
Aug 05, 2013 · 3Digests

Gainward GeForce GTX 650 Ti BOOST 2GB Golden Sample Graphics Card

An excellent hybrid of GeForce GTX 650 Ti and GeForce GTX 660.
Jun 24, 2013 · Video cards: NVIDIA GPUs

i3DSpeed, May 2013

Added the test results of NVIDIA GeForce GTX 770/780.
Jun 03, 2013 · 3Digests
  Latest News More    RSS  

Platform  ·  Video  ·  Multimedia  ·  Mobile  ·  Other  ||  About us & Privacy policy  ·  Twitter  ·  Facebook


Copyright © Byrds Research & Publishing, Ltd., 1997–2011. All rights reserved.