Date: Mon, 27 Aug 2018 21:56:08 -0700 From: John-Mark Gurney <jmg@funkthat.com> To: Rajil Saraswat <rajil.s@gmail.com> Cc: FreeBSD virtualization <freebsd-virtualization@freebsd.org> Subject: Re: Bhyve guest boot error, Buffer I/O error on dev vda1, logical block 0, lost async page write Message-ID: <20180828045608.GQ45503@funkthat.com> In-Reply-To: <69322b42-dc78-e2b0-d92d-e70cc37924d9@gmail.com> References: <ab6aab30-bbdc-9c81-1a71-1be29ce0f697@gmail.com> <114c2000-17ba-3cf6-1d4a-1354f42d8875@gmail.com> <CAEW%2BogbRC6hBe49GXr7vuC=pLcvdrtjhT25eh9U7%2BrbzE6tOPg@mail.gmail.com> <c2842451-5077-0078-025a-b7cfaeb57cdf@nomadlogic.org> <69322b42-dc78-e2b0-d92d-e70cc37924d9@gmail.com>
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Rajil Saraswat wrote this message on Mon, Aug 27, 2018 at 17:42 -0500:
> On 08/27/2018 11:50 AM, Pete Wright wrote:
> >
> >
> > On 8/26/18 10:07 PM, Sami Halabi wrote:
> >> Hi,
> >> IIRC pool shouldn't be above 90% used otherwise bad things happen..
> >> but at
> >> 69%????
> >> Can someone explain thid please?
> >
> > it's possible the filesystem was heavily fragmented? seems suspicious
> > - did scrubbing your pool find any errors?
> >
> > -pete
> >
>
> This is how the pool looked like,
>
> |# zpool list vmpool NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP
> HEALTH ALTROOT vmpool 372G 257G 115G - - 64% 69% 1.00x ONLINE - |
>
> Scrub did not show the errors. After deleting unused zvols, the guests
> started to work and pool looks like this,
> |
> |
>
> |# zpool list vmpool
> NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP
> HEALTH ALTROOT
> vmpool 372G 197G 175G - - 56% 53% 1.00x
> ONLINE -
There are a couple things that can happen.. you could have a quota
or refquota that prevents a dataset/zdev, or it's descendants from growing
larger, or you could have refreservation or reservation set which limits
the space that other datasets can consume..
--
John-Mark Gurney Voice: +1 415 225 5579
"All that I will do, has been done, All that I have, has not."
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