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Date:      Sun, 25 Aug 2024 10:30:03 +0200 (CEST)
From:      Ronald Klop <ronald-lists@klop.ws>
To:        Pamela Ballantyne <boyvalue@gmail.com>
Cc:        freebsd-fs@freebsd.org
Subject:   Re: Moving ZFS root popol to a virtual server was: ZFS: Suspended Pool due to allegedly uncorrectable I/O error
Message-ID:  <1716220186.14048.1724574603123@localhost>
In-Reply-To: <CAESeg0xZZb71zB%2BAB_Y05C%2BoDG=3ak3-TiWgi0Mg2Jf-FKcwdQ@mail.gmail.com>
References:  <CAESeg0wm9iZN=8tpo_rtC1hgRMzyr4dhJrQyxgSuiS183_9y8A@mail.gmail.com> <CAESeg0xZZb71zB%2BAB_Y05C%2BoDG=3ak3-TiWgi0Mg2Jf-FKcwdQ@mail.gmail.com>

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Van: Pamela Ballantyne <boyvalue@gmail.com>
Datum: zondag, 25 augustus 2024 05:03
Aan: freebsd-fs@freebsd.org
Onderwerp: Moving ZFS root popol to a virtual server was: ZFS: Suspended Pool due to allegedly uncorrectable I/O error
> 
> Many thanks to David Christensen, Ronald Klop, and Peter Much for answering my plea for help.
>  
> Further reviewing the available evidence,  it seems that the most likely cause of the problem is someone at the data center
> removing the disk drives from our server.  This was probably accidental, not malicious. I have reported this to the hosting company, but
> I'm not expecting much.
>  
> It is ancient hardware, circa 2011. Although it still performs decently. It is probably time for an upgrade, particularly
> since the hosting company is dropping support for bare metal servers.
>  
> I am not sure how to move the existing root pool to a virtual server. I've tried a few simulations with VirtualBox, creating
> a source server and a target. The pools get moved, but the target server never boots (even when I remember to set bootfs).
> Worse, the target disks are reported as being corrupted each time I do it.  
>  
> Once again, any experience/advice here would be very much appreciated.
>  
> Thank you again,
> Pammy
>  
>  


This is certainly possible but small details can result in a non-bootable pool on the target.

Can you provide some information on how you moved the root pool to the virtual server?
Did you dd the whole disk to a file? Or did you zfs send | zfs receive a snapshot? Or ... ?
What boot-loader was used on the old server and what on the new one? Is the partitioning the same on both?
I remember the old server had mirrored disks, how did you setup the virtual server?

Regards,
Ronald.
 
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<html><head></head><body><br>
<p><strong>Van:</strong> Pamela Ballantyne &lt;boyvalue@gmail.com&gt;<br>
<strong>Datum:</strong> zondag, 25 augustus 2024 05:03<br>
<strong>Aan:</strong> freebsd-fs@freebsd.org<br>
<strong>Onderwerp:</strong> Moving ZFS root popol to a virtual server was: ZFS: Suspended Pool due to allegedly uncorrectable I/O error</p>

<blockquote style="padding-right: 0px; padding-left: 5px; margin-left: 5px; border-left: #000000 2px solid; margin-right: 0px">
<div class="MessageRFC822Viewer" id="P">
<div class="MultipartAlternativeViewer">
<div class="TextHTMLViewer" id="P.P.P">
<div>Many thanks to David Christensen, Ronald Klop, and Peter Much for answering my plea for help.
<div>&nbsp;</div>

<div>Further reviewing the available evidence,&nbsp; it seems that the most likely cause of the problem is someone at the data center</div>

<div>removing the disk drives from our server.&nbsp; This was probably accidental, not malicious. I have reported this to the hosting company, but</div>

<div>I'm not expecting much.</div>

<div>&nbsp;</div>

<div>It is ancient hardware, circa 2011. Although&nbsp;it still performs decently. It is probably time for an upgrade, particularly</div>

<div>since the hosting company is dropping support for bare metal servers.</div>

<div>&nbsp;</div>

<div>I am not sure how to move the existing root pool to a virtual server. I've tried a few simulations with VirtualBox, creating</div>

<div>a source server and a target. The pools get moved, but the target server never boots (even when I remember to set bootfs).</div>

<div>Worse, the target disks are reported as being corrupted each time I do it.&nbsp;&nbsp;</div>

<div>&nbsp;</div>

<div>Once again, any experience/advice here would be very much appreciated.</div>

<div>&nbsp;</div>

<div>Thank you again,</div>

<div>Pammy</div>

<div>&nbsp;</div>

<div>&nbsp;</div>
</div>
</div>
</div>
</div>
</blockquote>
<br>
<br>
This is certainly possible but small details can result in a non-bootable pool on the target.<br>
<br>
Can you provide some information on how you moved the root pool to the virtual server?<br>
Did you dd the whole disk to a file? Or did you zfs send | zfs receive a snapshot? Or ... ?<br>
What boot-loader was used on the old server and what on the new one? Is the partitioning the same on both?<br>
I remember the old server had mirrored disks, how did you setup the virtual server?<br>
<br>
Regards,<br>
Ronald.<br>
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