For those interested in RAID devices here are my results from PC #1

  • 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.)

MacNala

Member
Sep 18, 2020
19
1
First without parameters.

Code:
   NOTE: 2 faster SATA drives are attached to slower SATA links. You may add
         the /ident command-line option to display and identify the drives.

Driv Size  Drive Identity     Location:    0      25%     50%     75%     100
---- ----- ---------------------------- ------- ------- ------- ------- -------
 81  2.0TB ST2000DM001-1CH164            189.1   199.7   178.6   144.5    97.5
 81  2.0TB ST2000DM001-1CH164            174.3   186.6   170.8   138.6    90.8
 82  2.0TB WDC WD20EZRX-00D8PB0          151.6   138.8   121.9   102.5    73.7
 83  4.0TB WDC WD40EFRX-68N32N0          177.8   168.5   149.7   124.3    84.9

                  Benchmarked: Friday, 2020-12-25 at 09:31

Then with the /verbose parameter
Code:
  AHCI '.' and IDE '-' drive reset & diagnostic latencies in milliseconds:

  61.826 61.838 61.1,129 61.628

  Associating BIOS drive [80-83]:

  [ 80 81 82! 83! ]
  [ 80 81 82! 83! ]

  BIOS drive count: 4

  BIOS Inter Bus Location Dev Port Intr
  ---- ----- --- -------- --- ---- ----
   80   USB  PCI  0:26:0   2                                                 

  BIOS Location Type Clas Pg Vend Devi Prt Intr Cmmd Ctrl Mast Driv Link Size
  ---- -------- ---- ---- -- ---- ---- --- ---- ---- ---- ---- ---- ---- -----
   81   0:31:2  RAID 0104 00 8086 2826  0    7  < AHCI Cntrl >  6.0  6.0 2.0TB
   81   0:31:2  RAID 0104 00 8086 2826  1    7  < AHCI Cntrl >  6.0  6.0 2.0TB
   82   0:31:2  RAID 0104 00 8086 2826  3    7  < AHCI Cntrl > <6.0> 3.0 2.0TB
   83   0:31:2  RAID 0104 00 8086 2826  5    7  < AHCI Cntrl > <6.0> 3.0 4.0TB

BIOS Size  Drive Identity     Location:    0      25%     50%     75%     100
---- ----- ---------------------------- ------- ------- ------- ------- -------
 81  2.0TB ST2000DM001-1CH164            191.2   199.7   177.8   144.5    97.4
 81  2.0TB ST2000DM001-1CH164            174.3   186.6   171.0   137.6    91.3
 82  2.0TB WDC WD20EZRX-00D8PB0          151.6   138.8   121.9   102.5    73.7
 83  4.0TB WDC WD40EFRX-68N32N0          177.8   168.5   149.7   124.3    85.1

                  Benchmarked: Friday, 2020-12-25 at 09:35

Note all drives are potentially addable to the main or other RAID volumes the drives 81
are in volume 0 as RAID 1 (Mirror).
Device 83 is an externally dismountable drive so a candidate for testing various drives
with Spinrite.
 
Code:
NOTE: 2 faster SATA drives are attached to slower SATA links. You may add
the /ident command-line option to display and identify the drives.

Code:
82 0:31:2 RAID 0104 00 8086 2826 3 7 < AHCI Cntrl > <6.0> 3.0 2.0TB
83 0:31:2 RAID 0104 00 8086 2826 5 7 < AHCI Cntrl > <6.0> 3.0 4.0TB

Those two drives could go faster, in theory, but I presume you don't have enough SATA6 ports...?