[DRBD-user] how long does drbd device do sync

Lars Ellenberg lars.ellenberg at linbit.com
Thu May 10 15:34:09 CEST 2007

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


On Thu, May 10, 2007 at 02:21:53PM +0100, Mark Watts wrote:
> 
> > On Thu, May 10, 2007 at 01:05:54PM +0100, Mark Watts wrote:
> > > > > It can be one of the following three:
> > > > >
> > > > >    C: write IO is reported as completed, if we know it has
> > > > >       reached _both_ local and remote DISK.
> > > > >       * for critical transactional data.
> > > >
> > > >        * for most cases.
> > >
> > > Most ?
> >
> > what is your question?
> >
> 
>    C: write IO is reported as completed, if we know it has
>        reached _both_ local and remote DISK.
> 
>        * for most cases.
> 
> In what circumstances does this not hold to be true (that data is on the 
> platters of both disks?)

1. misunderstanding:
in that post, read the "*" as "this setting is recommended ..."

2.
the statement holds not true when you lose connectivity,
obviously: if you cannot communicate with the peer,
it cannot write your data.

-- 
: Lars Ellenberg                            Tel +43-1-8178292-0  :
: LINBIT Information Technologies GmbH      Fax +43-1-8178292-82 :
: Vivenotgasse 48, A-1120 Vienna/Europe    http://www.linbit.com :
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