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

Gilberto Nunes gilberto.nunes32 at gmail.com
Mon Oct 26 16:35:19 CET 2015


But i thing that with this limitation, transfer 30 gb of mail's over
network it talks forever, don't you agree??

2015-10-26 13:25 GMT-02:00 Gilberto Nunes <gilberto.nunes32 at gmail.com>:

> Regard badnwidth limitation, you mean like this:
>
>
> irtio0:
> stg:120/vm-120-disk-1.qcow2,iops_rd=100,iops_wr=100,iops_rd_max=100,iops_wr_max=100,mbps_rd=70,mbps_wr=70,mbps_rd_max=70,mbps_wr_max=70,size=2000G
>
> 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
>>>>> >
>>>>> > _______________________________________________
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>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>>
>>>> Gilberto Ferreira
>>>> +55 (47) 9676-7530 <%2B55%20%2847%29%209676-7530>
>>>> Skype: gilberto.nunes36
>>>>
>>>>
>>>>
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>>>>
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>>>>
>>>
>>>
>>> --
>>>
>>> Gilberto Ferreira
>>> +55 (47) 9676-7530 <%2B55%20%2847%29%209676-7530>
>>> Skype: gilberto.nunes36
>>>
>>>
>>
>>
>> --
>>
>> Gilberto Ferreira
>> +55 (47) 9676-7530
>> Skype: gilberto.nunes36
>>
>>
>>
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>>
>>
>>
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>>
>
>
> --
>
> Gilberto Ferreira
> +55 (47) 9676-7530
> Skype: gilberto.nunes36
>
>


-- 

Gilberto Ferreira
+55 (47) 9676-7530
Skype: gilberto.nunes36
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