• Re: External USB SSD Disk Utility/First Aid Issue-- RESOLVED

    From Capt'n Butler@21:1/5 to Jolly Roger on Mon Nov 6 10:32:30 2023
    On 11/5/23 5:16 PM, Jolly Roger wrote:
    On 2023-11-05, Capt'n Butler <rhett@tara.net> wrote:
    On 11/4/23 8:52 PM, Jolly Roger wrote:
    On 2023-11-04, Capt'n Butler <rhett@tara.net> wrote:
    Got an issue running Disk Utility/First Aid on a 512GB external SATA SSD >>>> storing jpg and jpeg pictures. OS is Sonoma 14.1.

    Disk Utility shows the SSD structure as:
    Top level: JMicron Generic Media
    Second level down: Container Disk
    Third level down: My Extra Pix

    First Aid runs and returns clean reports on the top and third
    levels. But running First Aid on the second level Container Disk
    returns an error message:

    “The repair cannot be performed because one or more volumes are
    mounted. : (-69566) Operation failed.”

    If I manually unmount the Container Disk using Unmount on the menu
    bar, First Aid runs and returns a clean report.

    Upon exiting Disk Utility, the drive is no longer visible in Finder
    until unplugged/re-plugged at which point it is usable again

    Running Disk Utility again after re-plugging, the same Mounted error
    repeats. Repeated entire sequence several times. Same deal.

    Problem? If yes- ideas to fix?

    That's expected behavior. The volume needs to be unmounted to be
    examined properly is all.

    Yeah, but what I'm not understanding is why DU/FA doesn't auto-unmount
    this disk prior to running the scan as it does with every drive.

    It probably tries, but some process is busy using it. For instance,
    often Spotlight will be indexing a drive and it will fail to unmount as
    a result.


    That was the likely culprit. It's running fine now!

    --
    There’s no problem so bad that you can’t make it worse.
    - Astronaut Chris Hadfield

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  • From Jolly Roger@21:1/5 to Capt'n Butler on Tue Nov 7 04:10:16 2023
    On 2023-11-06, Capt'n Butler <rhett@tara.net> wrote:
    On 11/5/23 5:16 PM, Jolly Roger wrote:
    On 2023-11-05, Capt'n Butler <rhett@tara.net> wrote:
    On 11/4/23 8:52 PM, Jolly Roger wrote:
    On 2023-11-04, Capt'n Butler <rhett@tara.net> wrote:
    Got an issue running Disk Utility/First Aid on a 512GB external SATA SSD >>>>> storing jpg and jpeg pictures. OS is Sonoma 14.1.

    Disk Utility shows the SSD structure as:
    Top level: JMicron Generic Media
    Second level down: Container Disk
    Third level down: My Extra Pix

    First Aid runs and returns clean reports on the top and third
    levels. But running First Aid on the second level Container Disk
    returns an error message:

    “The repair cannot be performed because one or more volumes are
    mounted. : (-69566) Operation failed.”

    If I manually unmount the Container Disk using Unmount on the menu
    bar, First Aid runs and returns a clean report.

    Upon exiting Disk Utility, the drive is no longer visible in Finder
    until unplugged/re-plugged at which point it is usable again

    Running Disk Utility again after re-plugging, the same Mounted error >>>>> repeats. Repeated entire sequence several times. Same deal.

    Problem? If yes- ideas to fix?

    That's expected behavior. The volume needs to be unmounted to be
    examined properly is all.

    Yeah, but what I'm not understanding is why DU/FA doesn't auto-unmount
    this disk prior to running the scan as it does with every drive.

    It probably tries, but some process is busy using it. For instance,
    often Spotlight will be indexing a drive and it will fail to unmount as
    a result.

    That was the likely culprit. It's running fine now!

    Glad to hear it!

    --
    E-mail sent to this address may be devoured by my ravenous SPAM filter.
    I often ignore posts from Google. Use a real news client instead.

    JR

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  • From Ant@21:1/5 to Capt'n Butler on Tue Nov 7 20:26:41 2023
    Capt'n Butler <rhett@tara.net> wrote:
    ...
    It probably tries, but some process is busy using it. For instance,
    often Spotlight will be indexing a drive and it will fail to unmount as
    a result.

    That was the likely culprit. It's running fine now!

    How did you tell Spotlight to stop indexing so you could unmount?
    --
    "We wait for the blessed hope of the glorious appearing of our great God and Savior, Jesus Christ." ???Titus 2:13. Busier Mon. than usual after a bad overnite Z due 2 sicky allergy body after a quiet longer weekend.
    Note: A fixed width font (Courier, Monospace, etc.) is required to see this signature correctly.
    /\___/\ Ant(Dude) @ http://aqfl.net & http://antfarm.home.dhs.org.
    / /\ /\ \ Please nuke ANT if replying by e-mail.
    | |o o| |
    \ _ /
    ( )

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  • From Capt'n Butler@21:1/5 to Ant on Wed Nov 8 11:08:24 2023
    On 11/7/23 3:26 PM, Ant wrote:
    Capt'n Butler <rhett@tara.net> wrote:
    ...
    It probably tries, but some process is busy using it. For instance,
    often Spotlight will be indexing a drive and it will fail to unmount as
    a result.

    That was the likely culprit. It's running fine now!

    How did you tell Spotlight to stop indexing so you could unmount?

    I didn't-- I assume Spotlight completed indexing so First Aid could
    unmount it as it was no longer being used.

    Interestingly, after I made changes to-- or even just accessed-- the
    Container Disk or its sub disk, I got the same FA error message.

    Following a rest period-- I'm assuming after re-indexing was complete--
    FA ran normally.

    --
    I am at the age where not finding good parking at an event is enough to
    make me go home

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