From: David Teigland <teigland@redhat.com>
To: "Martin Dünkelmann" <nc-duenkekl3@netcologne.de>
Cc: linux-lvm@redhat.com
Subject: Re: [linux-lvm] Questions about monitoring, scrubbing & checking a LVM RAID5
Date: Thu, 29 Jul 2021 09:59:46 -0500 [thread overview]
Message-ID: <20210729145946.GA22305@redhat.com> (raw)
In-Reply-To: <630e7a16-5305-9319-52e2-8c45da6e9e27@netcologne.de>
On Wed, Jul 28, 2021 at 11:50:56PM +0200, Martin Dünkelmann wrote:
> Dear LVM2-People,
>
> I made a native RAID5 via LVM on 3 SSDs without mdadm, since LVM2 can do it
> natively.
>
> But I got confused about how to easily monitor it (send emails about errors,
> since it's a remove server) and how to check, repair and scrub the RAID5.
>
> Using:
> "sudo lvchange --syncaction check cryptdata_raid5/home" (same for repair)
> results in
>
> Command on LV cryptdata_raid5/home does not accept LV type linear.
> Command not permitted on LV cryptdata_raid5/home.
It works for me, so it could be a fixed bug. Check that the LV is really
raid5: lvs -o segtype cryptdata_raid5/home
> Does that mean LVM2 doesn't fully support native RAID5 and I should format
> everything and set up a mdadm raid5?
> Because mdadm has scrubbing and email reports according to the mdadm.conf.
Right, mdadm does much more.
Dave
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next prev parent reply other threads:[~2021-07-29 15:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-28 21:50 [linux-lvm] Questions about monitoring, scrubbing & checking a LVM RAID5 Martin Dünkelmann
2021-07-29 14:59 ` David Teigland [this message]
2021-07-29 15:53 ` Martin Dünkelmann
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