[PVE-User] KVM Guest Ubuntu goes RO-Filesystem every some night

[Brian ::]

Eneko probably onto something - any power management enabled?

On Fri, May 20, 2016 at 7:52 AM, Christopher Meyering
<christopher.meyering at dia-software.de> wrote:
> Hi,
>
> the servers are "brand new" (oldest bought about 4 months ago).
> The following bios is used:
> Vendor: Intel Corporation
> Version: SE5C610.86B.01.01.0009.060120151350
> Release Date: 06/01/2015
>
> the logs on the guest don't say anything (bad luck: they lay on the
> partition which went ro), and in host syslog / kern.log isn't anything
> strange either.
>
> I forget a thing:
> The guests drive live in an zfs store on the raid systems.
> Maybe it's important to know this.
>
> I'm thinking of switching to ubuntu virtual kernel, but i'm not quite sure
> if it will help or break even more stuff.
>
> greetings,
> chris
>
>
> Am 20.05.2016 um 08:42 schrieb Brian :::
>>
>> Is there anything in logs on guest or host around that time?
>>
>> On Fri, May 20, 2016 at 7:42 AM, Eneko Lacunza <elacunza at binovo.es> wrote:
>>>
>>> Hi,
>>>
>>> El 20/05/16 a las 08:19, Christopher Meyering escribió:
>>>>
>>>> Hi folks,
>>>>
>>>> Maybe someone of you has some idea how to get rid of my strange
>>>> "ro-filesytem" problem.
>>>>
>>>> First of all some basics:
>>>> Proxmox runs on a potent host, powering the kvm-guests with 2 raids. (1
>>>> ssd raid & 2 sas raid)
>>>> In our pve cluster we currently run 4 identical hosts with overall 50
>>>> kvm
>>>> guests on it.
>>>>
>>>> Every guest runs ubuntu server 14.04 with webservers, mysql & solr
>>>> services.
>>>>
>>>> Since 3 weeks ago some guests started to fall into ro-state root
>>>> filesystems at night without any noticeable reason.
>>>> The stress on the hosts and guests is quite normal at these times and
>>>> the
>>>> problems occure on different times between 01:00 and 06:30 in the
>>>> morning.
>>>> Occurently i can see some serious cpu soft locks with over 40s stuck
>>>> time.
>>>
>>>
>>> This is on the PVE hosts? What brand/model are the servers, BIOS
>>> version/date? (dmidecode)
>>>
>>> If BIOS is old (pre-2010 I think), there can be power management
>>> problems.
>>> You can also check power management in BIOS/UEFI and limit power saving
>>> to
>>> see if that helps.
>>>
>>> Cheers
>>> Eneko
>>>
>>> --
>>> Zuzendari Teknikoa / Director Técnico
>>> Binovo IT Human Project, S.L.
>>> Telf. 943493611
>>>        943324914
>>> Astigarraga bidea 2, planta 6 dcha., ofi. 3-2; 20180 Oiartzun (Gipuzkoa)
>>> www.binovo.es
>>>
>>>
>>> _______________________________________________
>>> pve-user mailing list
>>> pve-user at pve.proxmox.com
>>> http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
>>
>> _______________________________________________
>> pve-user mailing list
>> pve-user at pve.proxmox.com
>> http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
>
>
> --
>
> Mit freundlichem Gruß
> Christopher Meyering
> Technical Consultant
>
> DIA Connecting Software
> ------------------------------------------------------------------------
>
> DIA Connecting Software GmbH & Co. KG · Menkestraße 23 · 26419 Schortens
> Fon 04461 / 899 89 39 · Fax 04461 / 899 89 41
> www.dia-software.de <http://www.dia-software.de> ·
> christopher.meyering at dia-software.de
> <mailto:christopher.meyering at dia-software.de>
>
> Persönlich haftende Gesellschafterin: DIA Connecting Software Beteiligungs
> GmbH
> Handelsregister Wilhelmshaven HR B 131 604
> Geschäftsführer: Dipl.-Ing. Ansgar Gallas, Marco Walther
> Registergericht: Amtsgericht Oldenburg
> Handelsregister Wilhelmshaven: HR A 13 08 89
> Umsatzsteuer-Identifikationsnummer: DE813971952
>
> Die Information in dieser Email ist vertraulich und ist ausschließlich für
> den Adressaten bestimmt. Jeglicher Zugriff auf diese Email durch andere
> Personen als den Adressaten ist untersagt.
> Sollten Sie nicht der für diese Email bestimmte Adressat sein, ist Ihnen
> jede Veröffentlichung, Vervielfältigung oder Weitergabe wie auch das
> Ergreifen oder Unterlassen von Maßnahmen im Vertrauen
> auf erlangte Information untersagt. In dieser Email enthaltene Meinungen
> oder Empfehlungen unterliegen den Bedingungen des jeweiligen
> Kundenverhältnisses mit dem Adressaten.
>
> _______________________________________________
> pve-user mailing list
> pve-user at pve.proxmox.com
> http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user