Archive Home arrow Reviews: arrow Storage arrow Seagate Barracuda XT 3TB Hard Drive ST33000651AS
Seagate Barracuda XT 3TB Hard Drive ST33000651AS E-mail
Reviews - Featured Reviews: Storage
Written by Olin Coles   
Monday, 28 March 2011
Table of Contents: Page Index
Seagate Barracuda XT 3TB Hard Drive ST33000651AS
Features and Specifications
Drive Testing Methodology
Seagate Barracuda XT: SATA 3G vs 6G
AS-SSD Benchmark
ATTO Disk Benchmark
CrystalDiskMark 3.0 Tests
Iometer IOPS Performance
Short Stroke Disk Performance
Desktop Storage Final Thoughts
Seagate Barracuda XT Conclusion

Iometer IOPS Performance

Iometer is an I/O subsystem measurement and characterization tool for single and clustered systems. Iometer does for a computer's I/O subsystem what a dynamometer does for an engine: it measures performance under a controlled load. Iometer was originally developed by the Intel Corporation and formerly known as "Galileo". Intel has discontinued work on Iometer, and has gifted it to the Open Source Development Lab (OSDL). There is currently a new version of Iometer in beta form, which adds several new test dimensions for SSDs.

Iometer is both a workload generator (that is, it performs I/O operations in order to stress the system) and a measurement tool (that is, it examines and records the performance of its I/O operations and their impact on the system). It can be configured to emulate the disk or network I/O load of any program or benchmark, or can be used to generate entirely synthetic I/O loads. It can generate and measure loads on single or multiple (networked) systems.

To measure random I/O response time as well as total I/O's per second, Iometer is set to use 4KB file size chunks over a 100% random sequential distribution at a queue depth of 32 outstanding I/O's per target. The tests are given a 50% read and 50% write distribution. While this pattern may not match traditional 'server' or 'workstation' profiles, it illustrates a single point of reference relative to our product field.

The chart below illustrates combined random read and write IOPS over a 120-second Iometer test phase, where highest I/O total is preferred:

Iometer_Random_4K-IOPS_30QD_Results.png

Input/Output Operations per Second benchmarks are an excellent means of comparing solid state storage devices, but since all computers make operational requests these tests extend to mechanical storage devices as well. In this test the 3TB Seagate Barracuda XT hard drive may not have kept pace with SSDs, but it managed to exceed the IOPS performance of other mechanical storage devices.

In our next section, we test linear read and write bandwidth performance and compare its speed against several other top storage products using EVEREST Disk Benchmark. Benchmark Reviews feels that linear tests are excellent for rating SSDs, however HDDs are put at a disadvantage with these tests whenever capacity is high.



 

Comments 

 
# Cache sizeAthlonite 2011-03-29 04:26
Why are HDD manufacturers still # footing around with less than 256MB caches on bloody large HDD's when for an extra 3~5 dollars they could be putting 256 or more MegaBytes of DDR2 Ram on there as cache
Report Comment
 
 
# RE: Seagate Barracuda XT 3TB Hard Drive ST33000651ASRahul 2011-03-29 05:44
I think that Olin Coles does not know that all the P67 boards equipped with the UEFI BIOS can run 2.19+ TB hard drives natively with a supported OS like Linux, Vista, 7 etc.
Report Comment
 
 
# RE: RE: Seagate Barracuda XT 3TB Hard Drive ST33000651ASDavid Ramsey 2011-03-29 07:13
Olin does know this. You did read the part about "XP-safe software solution", right?
Report Comment
 
 
# RE: RE: Seagate Barracuda XT 3TB Hard Drive ST33000651ASOlin Coles 2011-03-29 08:57
Actually Rahul , I installed this hard drive on an ASUS P8P67 EVO motherboard that has the UEFI and used Windows 7 64-bit OS, and it could not format the entire 3TB... only 2.19TB. So there, try doing some research before you come online to troll.

Also, UEFI replaced the BIOS, so a "UEFI BIOS" doesn't exist; only UEFI.
Report Comment
 
 
# RE: Seagate Barracuda XT 3TB Hard Drive ST33000651ASRahul 2011-03-30 04:44
*These four sites claim that UEFI enabled or LGA1155 6 Series Chipset Motherboards support Hard Drives upto 9.4 Zettabytes or 10335409301094 Gigabytes ....
Report Comment
 
 
# RE: RE: Seagate Barracuda XT 3TB Hard Drive ST33000651ASOlin Coles 2011-03-30 13:57
If you initialize any hard drive with a MBR (master boot record), it will not see more than 2.19 TB. If you initialize it with GPD (GUID Partition Table), which is available in Windows 7, it will see more than 2.2 TB. It really has nothing to do with the UEFI or chipset.
Report Comment
 
 
# RE: RahulAustin Downing 2011-03-30 15:46
Actually the only thing UEFI did was make it so that systems could boot off of GPT partitions. Perhaps before bashing people who write these articles you should actually do some research of your own.
Report Comment
 
 
# RE: Seagate Barracuda XT 3TB Hard Drive ST33000651ASdanwat1234 2011-07-30 14:49
Sincerely Hoping Hitachi or Seagate make a 5-platter version of this with 1TB/platter before the end of 2011! It'll bring storage prices down across the board!
Report Comment
 

Comments have been disabled by the administrator.

Search Benchmark Reviews
QNAP Network Storage Servers

Follow Benchmark Reviews on FacebookReceive Tweets from Benchmark Reviews on Twitter