Re: Moving from mdadm raid 0 to single disk

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On 1/11/22 8:50 PM, Alexandre Leonenko wrote:
Thanks,

That's what I'll probably be doing then.

Great. Don't miss Jonathan's answers. His are very instructive and with deep insights, as always.

Valeri


Alex
________________________________
From: CentOS <centos-bounces@xxxxxxxxxx> on behalf of Valeri Galtsev <galtsev@xxxxxxxxxxxxxxxxx>
Sent: Tuesday, January 11, 2022 5:21 PM
To: centos@xxxxxxxxxx <centos@xxxxxxxxxx>
Subject: Re:  Moving from mdadm raid 0 to single disk



On 1/11/22 8:11 PM, Alexandre Leonenko wrote:
Hey all,

Hopefully a quick question. I'm going to move the filesystem of a raid 0 mdadm to a single disk.
The filesystem is just a data drive, can I just dd if=/dev/md0 of=/dev/sdc ?
Or should I rather rsync the files directly?

I would [partition disk; make new filesystem, mount, then] use rsync.
You avoid copying nuisances if there are any on old filesystem. You
avoid the need to resize partition on new disk, and expand filesystem.
You avoid waste of time copying empty space. You can have different
disklabel (it old was MSDOS and you want GPT). And few other things.

I hope, thins helps.

Valeri


Regards,
Alex

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--
++++++++++++++++++++++++++++++++++++++++
Valeri Galtsev
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
Phone: 773-702-4247
++++++++++++++++++++++++++++++++++++++++
_______________________________________________
CentOS mailing list
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https://lists.centos.org/mailman/listinfo/centos
_______________________________________________
CentOS mailing list
CentOS@xxxxxxxxxx
https://lists.centos.org/mailman/listinfo/centos

--
++++++++++++++++++++++++++++++++++++++++
Valeri Galtsev
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
Phone: 773-702-4247
++++++++++++++++++++++++++++++++++++++++
_______________________________________________
CentOS mailing list
CentOS@xxxxxxxxxx
https://lists.centos.org/mailman/listinfo/centos



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