Storage Devices

  Home arrow Storage Devices arrow DiamondMax 10: What does 16 MB Cache a...
Watch our Tech Videos 
Dev Hardware Forums 
Computer Cases  
Computer Processors  
Computer Systems  
Digital Cameras  
Flat Panels  
Hardware Guides  
Hardware News  
Input Devices  
Mobile Devices  
Networking Hardware  
PC Cooling  
PC Speakers  
Power Supply Units  
Sound Cards  
Storage Devices  
Tech Interviews  
User Experiences  
Video Cards  
Weekly Newsletter
Developer Updates  
Free Website Content 
 RSS  Articles
 RSS  Forums
 RSS  All Feeds
Write For Us 
Contact Us 
Site Map 
Privacy Policy 
  >>> SIGN UP!  
  Lost Password? 

DiamondMax 10: What does 16 MB Cache and the New Native Command Queuing do?
By: Robert Jacobs
  • Search For More Articles!
  • Disclaimer
  • Author Terms
  • Rating: 4 stars4 stars4 stars4 stars4 stars / 54

    Table of Contents:
  • DiamondMax 10: What does 16 MB Cache and the New Native Command Queuing do?
  • Maxtor DiamondMax 10 SATA Hard Disk Specifications
  • Native Command Queuing
  • Test Setup Hardware
  • Test Setup and Sandra and Sysmark Benchmarks
  • Maxtor, Raptor and HD Tach 3 Benchmarks
  • Disk Bench 2.3 and Conclusion

  • Rate this Article: Poor Best 
      Del.ici.ous Digg
      Blink Simpy
      Google Spurl
      Y! MyWeb Furl
    Email Me Similar Content When Posted
    Add Developer Shed Article Feed To Your Site
    Email Article To Friend
    Print Version Of Article
    PDF Version Of Article


    DiamondMax 10: What does 16 MB Cache and the New Native Command Queuing do?

    (Page 1 of 7 )

    NCQ is the latest buzz word in hard disk technologies. It adds an intelligence to the way disks access data. It's the biggest thing since sliced bread (or, at least, since the 10K Raptor drives). How does it measure up in the real world? The Maxtor DiamondMax 10 with NCQ is tested against today's fastest SATA drive, the Western Digital Raptor.


    Hard disks always have been and will remain the slowest part in a computer due to their mechanical nature. Compared with a pure electronic part, like memory, an electromagnetic part like the hard disk is very, very slow; RAM speeds are measured in nanoseconds, hard disk speeds in milliseconds. On the plus side, hard disks have increased in size and several hundreds of GB are possible in the average home PC. Some may also argue that technical improvements have increased the MTBF (Mean Time Between Failure) i.e., provided increased reliability, and that advances in technologies like Fluid Dynamic Bearing have reduced the noise drives generate.

    There is one thing, however, that hard disks just haven't done very well on - speed. Today's buzz words like UDMA, SATA etc. haven't made a 266 MHz-to-3.6 GHz type of leap in performance. True, disks are faster now than ever before but, relative to advances in CPU architecture, hard disks are advancing at a very leisurely rate. In terms of metrics all they've done is move from 5400 rpm to 7200 rpm on the spindle speeds and from 2 MB to 8 MB of onboard cache - and that's it.

    The storage space has increased tremendously over time and the cost has deceased to less than $1.00 per GB, a figure that would have been simply unbelievable as little as two years ago. (There are downsides to larger sizes, of course, in that the more the data you have on your platter the longer it takes to find any one part of that data).

    All of the main hard disk manufacturers today, such as Maxtor, Western Digital, Seagate, and Hitachi/IBM, offer near identical 7200rpm 8mb cache PATA UDMA133 /SATA UDMA 150 hard disks. The products vary only slightly in factors such as heat output, noise generated, and warranty.

    Maxtor DiamondMax 10 SATA Hard Disk ReviewThere is one exception, the Western Digital Raptor, an enthusiasts' drive that has received rave reviews. The Raptor is optimistically referred to as an "enterprise class" drive because it spins at 10k rpm.  This offers faster read and write speeds and faster access times than any 7200rpm drive. The Raptors are available in only two sizes - 36.7GB and 74GB, and are often compared to SCSI drives in performance. Enthusiasts even combine them in RAID 0 configurations to push their performance past many older SCSI drives.

    Maxtor's new drive, the DiamondMax 10 (sic) goes down a different route. Maxtor decided to forsake faster spindle speeds to offer a doubling of the onboard cache and, importantly, support for Native Command Queuing.

    The increase in cache helps with the storage of I/O requests from the controller and speeds up the user experience. Accessing the cache, which runs at RAM speeds, is faster than accessing the disk platters so the more the data that can be stored in cache the more the benefit to be seen in many applications. Native Command Queuing is a SATA command protocol offering increased hard disk speeds. It involves a more intelligent routing of the hard disk heads when they have several bits of data to read. It minimizes the number of times the platter has to spin for the heads to access all the data requested and this reduces the latency. Officially, it is a powerful interface/ disc technology designed to increase performance and endurance by allowing the drive to internally optimise the execution order of workloads.

    How does the 16 MB of cache and the NCQ feature of the new 7200 rpm DiamondMax 10 compare with today's top 10K rpm the Raptor with 8 MB of cache? We decided to take them for a, er, spin.

    More Storage Devices Articles
    More By Robert Jacobs

    blog comments powered by Disqus


    - The Rise of Purpose-Built Backup Appliances
    - Why Are Customers Deploying Purpose-Built Ba...
    - TrueCrypt: Free, On-the-Fly Disk Encryption
    - Bootable Rescue Flash Drives
    - Operating Systems on Bootable Flash Drives
    - Shopping For External Storage
    - How to Flash Your BIOS with Flash Drives
    - Flash Drive Booting Fundamentals
    - Freecom Media Player 450 WLAN
    - Mobile Computing Technologies: an Overview
    - Throwing a Glance at Solid State Drives
    - Soyo SlimEX Platinum Review
    - Setting Up Your USB Storage Device as a Port...
    - Network Storage for the Home with the D-Link...
    - Netgear SC101 Network Attached Storage for t...

    Developer Shed Affiliates


    © 2003-2019 by Developer Shed. All rights reserved. DS Cluster - Follow our Sitemap
    KEITHLEE2zdeconfigurator/configs/INFUSIONSOFT_OVERLAY.phpzdeconfigurator/configs/ OFFLOADING INFUSIONSOFTLOADING INFUSIONSOFT 1debug:overlay status: OFF
    overlay not displayed overlay cookie defined: TI_CAMPAIGN_1012_D OVERLAY COOKIE set:
    status off