[PVE-User] I try hard but...

Gilberto Nunes gilberto.nunes32 at gmail.com
Mon Oct 26 14:36:31 CET 2015


I agree with iSCSI, but NFS leave me the option to make snapshot...
I will try with iSCSI...

Thanks for the trick

2015-10-26 11:25 GMT-02:00 Dmitry Petuhov <mityapetuhov at gmail.com>:

> There's issue with NFS: if you try to send over it more than network can
> deal with (100-120 MBps for 1-gigabit), it imposes several-second pauses,
> which are being interpreted like hardware errors. These bursts may be just
> few seconds long to trigger issue.
>
> You can try to limit bandwidth in virtual HDD config to something like
> 60-70 MBps. This should be enough for 1-gigabit network.
>
> But my opinion is that it's better to switch to iSCSI.
>
> 26.10.2015 16:13, Gilberto Nunes пишет:
>
> BTW, all HD is SAS with gigaethernet between the servers...
> I already try with gigaethernet switch in order to isoleted the Proxmox
> and Storage from external (LAN) traffic.... Not works at all!
>
> 2015-10-26 11:12 GMT-02:00 Gilberto Nunes <gilberto.nunes32 at gmail.com>:
>
>> HDD config is standard... I do not make any change...
>> I wonder why I have others VM, as I said before, with Ubuntu, CentOS,
>> Windows 7 and 2012, and work fine!
>> Not of all have huge big files or a lot of connections, but they stand
>> solid!
>> But when require a lot access and deal with big files, here's came the
>> devil! The VM just get IO error and die before 2 or 3 days...
>> On both physical servers, not hight load. I check with HTOP and TOP as
>> well.
>> iostat doesn't show nothing wrong.
>> In side the VM, a lot I/O error from time to time...
>> IO goes high endeed, but is so expect because I am using imapsync to sync
>> mails to old server to Zimbra Mail Server...
>> But I do not expect the VM die with IO errors!
>> It's so frustrating... :(
>>
>> 2015-10-26 11:04 GMT-02:00 Dmitry Petuhov < <mityapetuhov at gmail.com>
>> mityapetuhov at gmail.com>:
>>
>>> What's virtual HDD config? Which controller, which cache mode?
>>>
>>> I suppose it's bad idea to run KVM machines via NFS: it may produce big
>>> enough delays under high loads, which may look like timeouts on client side.
>>> If you want some network storage, iSCSI can be better chiose.
>>>
>>> 26.10.2015 12:48, Gilberto Nunes пишет:
>>>
>>> Admin or whatever is your name... I have more than 10 years deal with
>>> Unix Linux and Windows.
>>> I know what I done.
>>> To the others: Yes! Should be straightforward any way...
>>> Proxmox server is a PowerEdge R430 with 32 GB of memory.
>>> Storage is the same server.
>>> Both with SAS hard driver.
>>> Between this servers there's a cable in order to provide a gigaethernet
>>> link.
>>> In second server, I have ubuntu 15.04 installed with DRBD and OCFS
>>> mounted in /data FS.
>>> In the same server, I have NFS installed and server FS to Proxmox
>>> machine.
>>> In proxmox machine I have nothing, except a VM with Ubuntu 14.04
>>> installed, where Zimbra Mail Server was deploy...
>>> Inside bothe physical servers, everything is ok... NO error in disc and
>>> everything is running smoothly.
>>> But, INSIDE THE VM HOSTED WITH PROXMOX, many IO errors!...
>>> This make FS corrputed in some point that make Zimbra crash!
>>>
>>> BTW, I will return Zimbra to a physical machine right now and deploy lab
>>> env for test purpose
>>>
>>> Best regards
>>>
>>>
>>> 2015-10-25 22:38 GMT-02:00 <admin at extremeshok.com>admin at extremeshok.com
>>> < <admin at extremeshok.com>admin at extremeshok.com>:
>>>
>>>> Your nfs settings.
>>>>
>>>> Hire you people with the knowledge or up skill your knowledge.
>>>>
>>>> Sent from my iPhone
>>>>
>>>> > On 26 Oct 2015, at 1:33 AM, Gilberto Nunes <
>>>> <gilberto.nunes32 at gmail.com>gilberto.nunes32 at gmail.com> wrote:
>>>> >
>>>> > Well friends...
>>>> >
>>>> > I really try hard to work with PVE, but is a pain in the ass...
>>>> > Nothing seems to work..
>>>> > I deploy Ubuntu with NFS storage connected through direct cable ( 1
>>>> gb ) and beside follow all docs available in the wiki and internet, one
>>>> single VM continue to crash over and over again...
>>>> >
>>>> > So I realise that is time to say good bye to Proxmox...
>>>> >
>>>> > Live long and prosper...
>>>> >
>>>> >
>>>> >
>>>> >
>>>> > --
>>>> >
>>>> > Gilberto Ferreira
>>>> > +55 (47) 9676-7530 <%2B55%20%2847%29%209676-7530>
>>>> > Skype: gilberto.nunes36
>>>> >
>>>> > _______________________________________________
>>>> > 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
>>>>
>>>
>>>
>>>
>>> --
>>>
>>> Gilberto Ferreira
>>> +55 (47) 9676-7530 <%2B55%20%2847%29%209676-7530>
>>> Skype: gilberto.nunes36
>>>
>>>
>>>
>>> _______________________________________________
>>> pve-user mailing listpve-user at pve.proxmox.comhttp://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
>>>
>>>
>>
>>
>> --
>>
>> Gilberto Ferreira
>> +55 (47) 9676-7530 <%2B55%20%2847%29%209676-7530>
>> Skype: gilberto.nunes36
>>
>>
>
>
> --
>
> Gilberto Ferreira
> +55 (47) 9676-7530
> Skype: gilberto.nunes36
>
>
>
> _______________________________________________
> pve-user mailing listpve-user at pve.proxmox.comhttp://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
>
>


-- 

Gilberto Ferreira
+55 (47) 9676-7530
Skype: gilberto.nunes36
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://pve.proxmox.com/pipermail/pve-user/attachments/20151026/fafe3f6f/attachment-0015.html>


More information about the pve-user mailing list