Date: Mon, 22 Apr 2024 12:05:03 -0400 From: mike tancsa <mike@sentex.net> To: =?UTF-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@FreeBSD.org> Cc: FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org> Subject: Re: block size: 512B configured, 4096B native all of a sudden Message-ID: <9dd52865-6928-41dc-910b-82988fe6b2af@sentex.net> In-Reply-To: <86y19575y9.fsf@ltc.des.dev> References: <9a593ca1-4975-438a-afec-d8dd5199dbcf@sentex.net> <86bk618lyh.fsf@ltc.des.dev> <d3536b16-fbdb-4a9f-a85c-47b1cc7213db@sentex.net> <867cgp8lgu.fsf@ltc.des.dev> <57a1cc6b-2bd2-4292-9fde-f8799ffa291a@sentex.net> <8634rd8l2p.fsf@ltc.des.dev> <e089d0a9-f659-4ebe-8d6b-b09e7ecaa265@sentex.net> <86y19575y9.fsf@ltc.des.dev>
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On 4/22/2024 11:49 AM, Dag-Erling Smørgrav wrote:
> mike tancsa<mike@sentex.net> writes:
>> I was afraid of that. So basically I have to copy the entire pool or
>> live with the performance penalty :( 73TB is a lot to copy / move.
> Oh I didn't realize those disks were part of the larger pool, I thought
> they were a separate pool named “special”. You might be able to simply
> detach and then re-attach both drives, afaik a draid can function
> without its special vdev.
Yeah, its an actual special vdev I added to speed up metadata and small
file access. zpool-detach I think only works on mirrors and not raidz
vdevs. From searching google, there does not seem to be a way to detach
a special vdev from a raidz pool.
---Mike
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<div class="moz-cite-prefix">On 4/22/2024 11:49 AM, Dag-Erling
Smørgrav wrote:<br>
</div>
<blockquote type="cite" cite="mid:86y19575y9.fsf@ltc.des.dev">
<pre class="moz-quote-pre" wrap="">mike tancsa <a class="moz-txt-link-rfc2396E" href="mailto:mike@sentex.net"><mike@sentex.net></a> writes:
</pre>
<blockquote type="cite">
<pre class="moz-quote-pre" wrap="">I was afraid of that. So basically I have to copy the entire pool or
live with the performance penalty :( 73TB is a lot to copy / move.
</pre>
</blockquote>
<pre class="moz-quote-pre" wrap="">
Oh I didn't realize those disks were part of the larger pool, I thought
they were a separate pool named “special”. You might be able to simply
detach and then re-attach both drives, afaik a draid can function
without its special vdev.
</pre>
</blockquote>
<p>Yeah, its an actual special vdev I added to speed up metadata and
small file access. zpool-detach I think only works on mirrors and
not raidz vdevs. From searching google, there does not seem to be
a way to detach a special vdev from a raidz pool.</p>
<p> ---Mike<br>
</p>
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