ReadSpeed verbose mode question

  • 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.)

Pumpkin-Pie

New member
Dec 30, 2020
2
0
Hi.

Just prior to SN798 being live streamed, I looked at the show notes and downloaded & ran ReadSpeed. The results were as follows :

Code:
  +--------------------------------------------------------------------------+
  | ReadSpeed: Hyper-accurate mass storage read-performance benchmark. rel 1 |
  |  Benchmarked values are in megabytes read per second at five locations.  |
  +--------------------------------------------------------------------------+

Driv Size  Drive Identity     Location:    0      25%     50%     75%     100
---- ----- ---------------------------- ------- ------- ------- ------- -------
81  2.0TB WDC WD2003FZEX-00Z4SA0        166.4   153.2   138.3   116.5    87.3
82  3.0TB WDC WD3003FZEX-00Z4SA0        169.0   162.7   150.4   131.5   101.5
83  4.0TB WDC WD40EZRZ-00GXCB0          172.9   163.9   145.6   120.3    82.1

                  Benchmarked: Tuesday, 2020-12-29 at 21:28
-----------------------------------------------------------------------------
   See the ReadSpeed forums at forums.grc.com for help and community support.

This morning, I re-ran ReadSpeed in verbose mode and observed this :

Code:
  +--------------------------------------------------------------------------+
  | ReadSpeed: Hyper-accurate mass storage read-performance benchmark. rel 1 |
  |  Benchmarked values are in megabytes read per second at five locations.  |
  +--------------------------------------------------------------------------+

  AHCI '.' and IDE '-' drive reset & diagnostic latencies in milliseconds:

  61.614 61.613 61.1,007

  Associating BIOS drive [80-83]:

  [ 80 81! 82 83 ]

  BIOS drive count: 4

  BIOS Inter Bus Location Dev Port Intr
  ---- ----- --- -------- --- ---- ----
   80   USB  PCI  2: 0:0   3                                                  

  BIOS Location Type Clas Pg Vend Devi Prt Intr Cmmd Ctrl Mast Driv Link Size
  ---- -------- ---- ---- -- ---- ---- --- ---- ---- ---- ---- ---- ---- -----
   81   0:17:0  AHCI 0106 01 1002 4391  0    7  < AHCI Cntrl >  6.0  6.0 2.0TB
   82   0:17:0  AHCI 0106 01 1002 4391  1    7  < AHCI Cntrl >  6.0  6.0 3.0TB
   83   0:17:0  AHCI 0106 01 1002 4391  3    7  < AHCI Cntrl >  6.0  6.0 4.0TB

What I am concerned about is in the list of BIOS drives 80 to 83, drive 81 is shown as 81! - does the appearance of the ! character indicate a problem?

Many thanks in advance. My system is a few years old and runs VirtualBox - my copy of SpinRite 6.0 won't work on these GPT formatted disks so I'm looking forward to version 6.1 in the New Year. Thanks again. Tom