Re: Clustered FS for RBD

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Hi Gandalf,

Am 04.06.2013 21:45, schrieb Gandalf Corvotempesta:
> 2013/6/4 Smart Weblications GmbH - Florian Wiessner
> <f.wiessner@xxxxxxxxxxxxxxxxxxxxx <mailto:f.wiessner@xxxxxxxxxxxxxxxxxxxxx>>
> 
>     we use ocfs2 ontop of rbd... the only bad thing is that ocfs2 will fence all
>     nodes if rbd is not responding within defined timeout...
> 
> 
> if rbd is not responding to all nodes, having all ocfs2 fenced should not be an
> issue, because the whole cluster will be unavailable even without fence.
> 
> In case of a single ocfs2 node failure, other node still alive should not have
> issue at all, right?
> 

Yes, that's correct.

>  
> 
>     ocfs2 has extra
>     settings for using it as mailserver fs...
> 
> 
> On which settings are you referring to?

from man mkfs.ocfs2:

       -T filesystem-type
              Specify how  the  filesystem  is  going  to  be  used,  so  that
              mkfs.ocfs2 can chose optimal filesystem parameters for that use.
              The supported filesystem types are:

                   mail   Appropriate for file systems which  will  have  many
                          meta data updates. Creates a larger journal.

                   datafiles
                          Appropriate for file systems which will host a relaâ
                          tively small number of very  large  files.  A  small
                          journal  is  selected. Cluster size will be at least
                          128K.


-- 

Mit freundlichen Grüßen,

Florian Wiessner

Smart Weblications GmbH
Martinsberger Str. 1
D-95119 Naila

fon.: +49 9282 9638 200
fax.: +49 9282 9638 205
24/7: +49 900 144 000 00 - 0,99 EUR/Min*
http://www.smart-weblications.de

--
Sitz der Gesellschaft: Naila
Geschäftsführer: Florian Wiessner
HRB-Nr.: HRB 3840 Amtsgericht Hof
*aus dem dt. Festnetz, ggf. abweichende Preise aus dem Mobilfunknetz
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