Re: Macos-x-server Digest, Vol 70, Issue 2

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Re: Macos-x-server Digest, Vol 70, Issue 2

The Mac OS X Server Mailing List mailing list
Sounds like a drive going bad to me too.

However there's no native Mac version of SpinRite, which although it will work on a Mac formatted drive has to be booted from something else. If you can load the suspect drive into a PC and run SpinRite there under Win it'll fix a Mac drive (assuming it's fixable). Otherwise the newly released DiskWarrior 5 is Mac native, comes on a bootable USB stick and does a fine job.

Either way don't reuse that drive once you've recovered its contents.

Neil

> Message: 2
> Date: Mon, 09 Feb 2015 12:48:15 -0600
> From: OS X Server Mail List <[hidden email]
>
> Slow reads like that could be a sick hard drive, especially as it's
> appearing to pause during HD activity.
>
> Consider running http://SpinRite.info on the drive or replacing the HD from
> a backup.
>
> Cheers,
> -m






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Re: Macos-x-server Digest, Vol 70, Issue 2

The Mac OS X Server Mailing List mailing list
Nah, SpinRite can be run from a virtual machine guest on a Mac host via
VirtualBox or some such. There are OS X tutorials for doing this on the
Web, easily findable.

I suggest SpinRite over DiskWarrior et. al. specifically because there does
not seem to be filesystem corruption or similar (judging from fsck and
journal replay completion) so the problem, if it is a bad drive, is
orthogonal to the data on the drive. Hence, SpinRite's a more reliable (and
less costly) approach.

I once booted a similarly misbehaving Mac laptop into Target Disk mode and
ran spinrite on it from my own Mac using a FreeDOS virtual machine in
VirtualBox and the results were stellar. Obvsiously the drive wasn't
trustworthy anymore but the laptop ran fine for quite a few weeks before it
got the drive replaced anyway. *shrug* YMMV and whatnot.

Cheers,
-m
On Feb 9, 2015 3:24 PM, "OS X Server Mail List" <
[hidden email]> wrote:

> Sounds like a drive going bad to me too.
>
> However there's no native Mac version of SpinRite, which although it will
> work on a Mac formatted drive has to be booted from something else. If you
> can load the suspect drive into a PC and run SpinRite there under Win it'll
> fix a Mac drive (assuming it's fixable). Otherwise the newly released
> DiskWarrior 5 is Mac native, comes on a bootable USB stick and does a fine
> job.
>
> Either way don't reuse that drive once you've recovered its contents.
>
> Neil
>
> > Message: 2
> > Date: Mon, 09 Feb 2015 12:48:15 -0600
> > From: OS X Server Mail List <[hidden email]
> >
> > Slow reads like that could be a sick hard drive, especially as it's
> > appearing to pause during HD activity.
> >
> > Consider running http://SpinRite.info on the drive or replacing the HD
> from
> > a backup.
> >
> > Cheers,
> > -m
>
>
>
>
>
>
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Re: Macos-x-server Digest, Vol 70, Issue 2

The Mac OS X Server Mailing List mailing list
Indeed it was the HDD after all. I had never seen this failure mode before, where things happen correctly but in slooooow mooooootion. Am restoring to a new drive now, and all is proceeding nicely.

(BTW, in my original post I said this was an iMac but I typo’d that. This is a previous-gen MacPro Tower, which is a joy to work on. Swapping out memory or power supply or drives could _not_ be easier. Nice engineering!)

Thanks to all who responded!
-Carl

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Re: Macos-x-server Digest, Vol 70, Issue 2

The Mac OS X Server Mailing List mailing list
In reply to this post by The Mac OS X Server Mailing List mailing list
Indeed it was the HDD. I had never seen this failure mode before, where things happen correctly but in slooooow mooooootion. Am restoring to a new drive now, and all is proceeding nicely.

(BTW, my original post said this was an iMac but I typo’d that. This is a previous-gen Mac Tower, which is a joy to work on. Swapping out memory or power supply or drives could _not_ be easier. Nice engineering!)

Thanks to all who responded!
-Carl

> On Feb 9, 2015, at 1:39 PM, OS X Server Mail List <[hidden email]> wrote:
>
> Nah, SpinRite can be run from a virtual machine guest on a Mac host via
> VirtualBox or some such. There are OS X tutorials for doing this on the
> Web, easily findable.
>
> I suggest SpinRite over DiskWarrior et. al. specifically because there does
> not seem to be filesystem corruption or similar (judging from fsck and
> journal replay completion) so the problem, if it is a bad drive, is
> orthogonal to the data on the drive. Hence, SpinRite's a more reliable (and
> less costly) approach.
>
> I once booted a similarly misbehaving Mac laptop into Target Disk mode and
> ran spinrite on it from my own Mac using a FreeDOS virtual machine in
> VirtualBox and the results were stellar. Obvsiously the drive wasn't
> trustworthy anymore but the laptop ran fine for quite a few weeks before it
> got the drive replaced anyway. *shrug* YMMV and whatnot.
>
> Cheers,
> -m
> On Feb 9, 2015 3:24 PM, "OS X Server Mail List" <
> [hidden email] <mailto:[hidden email]>> wrote:
>
>> Sounds like a drive going bad to me too.
>>
>> However there's no native Mac version of SpinRite, which although it will
>> work on a Mac formatted drive has to be booted from something else. If you
>> can load the suspect drive into a PC and run SpinRite there under Win it'll
>> fix a Mac drive (assuming it's fixable). Otherwise the newly released
>> DiskWarrior 5 is Mac native, comes on a bootable USB stick and does a fine
>> job.
>>
>> Either way don't reuse that drive once you've recovered its contents.
>>
>> Neil
>>
>>> Message: 2
>>> Date: Mon, 09 Feb 2015 12:48:15 -0600
>>> From: OS X Server Mail List <[hidden email]
>>>
>>> Slow reads like that could be a sick hard drive, especially as it's
>>> appearing to pause during HD activity.
>>>
>>> Consider running http://SpinRite.info on the drive or replacing the HD
>> from
>>> a backup.
>>>
>>> Cheers,
>>> -m
>>
>>
>>
>>
>>
>>
>> _______________________________________________
>> Do not post admin requests to the list. They will be ignored.
>> Macos-x-server mailing list      ([hidden email])
>> Help/Unsubscribe/Update your Subscription:
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>>
>> This email sent to [hidden email] <mailto:[hidden email]>
>
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>
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Re: Macos-x-server Digest, Vol 70, Issue 2

The Mac OS X Server Mailing List mailing list
In reply to this post by The Mac OS X Server Mailing List mailing list

> On Feb 9, 2015, at 5:29 PM, OS X Server Mail List <[hidden email]> wrote:
>
> Indeed it was the HDD after all. I had never seen this failure mode before, where things happen correctly but in slooooow mooooootion. Am restoring to a new drive now, and all is proceeding nicely.
>
> (BTW, in my original post I said this was an iMac but I typo’d that. This is a previous-gen MacPro Tower, which is a joy to work on. Swapping out memory or power supply or drives could _not_ be easier. Nice engineering!)
>
> Thanks to all who responded!
> -Carl
>

I have seen this failure mode twice before with my MacBook Pro; it was a failing hard drive cable.  So you might drop the old drive in an external case and test it.


Charles Yeomans



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