A Marvell PC and AMD PC

  • SpinRite v6.1 Release #3
    Guest:
    The 3rd release of SpinRite v6.1 is published and may be obtained by all SpinRite v6.0 owners at the SpinRite v6.1 Pre-Release page. (SpinRite will shortly be officially updated to v6.1 so this page will be renamed.) The primary new feature, and the reason for this release, was the discovery of memory problems in some systems that were affecting SpinRite's operation. So SpinRite now incorporates a built-in test of the system's memory. For the full story, please see this page in the "Pre-Release Announcements & Feedback" forum.
    /Steve.
  • Be sure to checkout “Tips & Tricks”
    Dear Guest Visitor → Once you register and log-in please checkout the “Tips & Tricks” page for some very handy tips!

    /Steve.
  • BootAble – FreeDOS boot testing freeware

    To obtain direct, low-level access to a system's mass storage drives, SpinRite runs under a GRC-customized version of FreeDOS which has been modified to add compatibility with all file systems. In order to run SpinRite it must first be possible to boot FreeDOS.

    GRC's “BootAble” freeware allows anyone to easily create BIOS-bootable media in order to workout and confirm the details of getting a machine to boot FreeDOS through a BIOS. Once the means of doing that has been determined, the media created by SpinRite can be booted and run in the same way.

    The participants here, who have taken the time to share their knowledge and experience, their successes and some frustrations with booting their computers into FreeDOS, have created a valuable knowledgebase which will benefit everyone who follows.

    You may click on the image to the right to obtain your own copy of BootAble. Then use the knowledge and experience documented here to boot your computer(s) into FreeDOS. And please do not hesitate to ask questions – nowhere else can better answers be found.

    (You may permanently close this reminder with the 'X' in the upper right.)

Tazz

Not my real name.
Sep 18, 2020
78
28
Nova Scotia, Canada
No problems at all :cool:


Marvell PC with one Marvell port in IDE mode and another in AHCI mode:
Code:
Driv Size  Drive Identity     Location:    0      25%     50%     75%     100
---- ----- ---------------------------- ------- ------- ------- ------- -------
 81  250GB Samsung SSD 860 EVO 250GB     543.5   543.0   544.3   544.4   544.3
 82  1.0TB WDC WD1001FALS-00E8B0         108.9   104.0    94.9    80.4    56.7
 83  1.0TB WDC WD1002FAEX-00Y9A0         136.8   124.0   109.8    93.0    65.0
 84  1.0TB Samsung SSD 860 EVO 1TB       543.4   544.5   543.1   544.5   544.5
 85  128GB Samsung SSD 840 PRO Serie     274.2   274.3   274.3   274.3   274.3
 86  1.0TB WDC WD10EZEX-00WN4A0          184.7   166.4   148.7   125.2    88.2
 87  1.0TB WDC WD10EZEX-00WN4A0          188.3   170.5   152.0   127.3    90.2

                  Benchmarked: Saturday, 2020-12-26 at 16:20

AMD PC:
Code:
Driv Size  Drive Identity     Location:    0      25%     50%     75%     100
---- ----- ---------------------------- ------- ------- ------- ------- -------
 81  250GB Samsung SSD 840 EVO 250GB     539.5   534.1   537.5   546.2   546.1
 82  6.0TB WDC WD60EFAX-68SHWN0          189.8   152.2   380.6   379.9   377.2
 83  2.0TB WDC WD20EZRZ-00Z5HB0          153.3   140.9   123.4   102.1    73.0
 84  2.0TB Hitachi HUA723020ALA641       146.4   136.9   121.2    99.6    71.5
 85  2.0TB WDC WD20EZRX-00D8PB0          149.2   135.2   116.8    97.8    71.4
 86  6.0TB ST6000VN0033-2EE110           231.1   218.5   198.5   166.1   117.1
 87  6.0TB ST6000VN0033-2EE110           223.4   213.2   193.2   160.3   113.2

                  Benchmarked: Saturday, 2020-12-26 at 16:29
 
Drive 82 on the AMD system has strange results, it jumps up to 300+MB at 50% onward...maybe seeing some caching benefit?
 
Drive 82 on the AMD system has strange results, it jumps up to 300+MB at 50% onward...maybe seeing some caching benefit?
Sharp eyes, @PHoganDive :) We saw this during the pre-release testing. That drive uses SMR technology — shingled magnetic recording. These drives are weird ducks and they will be needing some special attention from SpinRite. Believe it or not, that drive “knows” that those regions of the drive are empty, so it doesn't even bother moving its heads and reading the media. It simply returns zeroes. Since it doesn't need to read anything, it appears to be super fast! Weird, huh?
 
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I have removed my content
 
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