Re: compelling arguments for a ThirdParty Cluster

Hi

Thanks for the replies.
I have the FUD factor (as i only have a single RAC
implementation exp with just maintainence and
installation) for interviews thats why i am posing so
many questions.

Please where can i find information about interconnect
bonding and teaming

regards
Hrishy

--- LS Cheng <exriscer@xxxxxxxxx> wrote:

> simple words
> 
> if Oracle Clusterware fencing is not reliable we
> would have seen already
> data corruptions issues
> 
> plus, RAC internally has algorithm to avoid data
> corruptions when cache
> fusion communications suffers problems
> 
> interconnect is not SPOF if you protect it with
> bonding or teaming
> 
> I am not sure what is your point about LUNs but I
> have been in many sites
> and asking for 5 1GB LUNs does not seem problem at
> all
> 
> 
> Thanks
> 
> --
> LSC
> 
> 
> On Jan 17, 2008 3:14 PM, hrishy
> <hrishys@xxxxxxxxxxx> wrote:
> 
> > Hi
> >
> > I am looking it from a prespective off SLA's
> > for ex the document mentions
> >
> > a)Establishing dependencies between clusterware
> > storage and RAC databases to ensure that the
> shutdown
> > in the correct sequence.The sun clusterware allows
> the
> > oracle clusterware to be stopped before the
> > filesystems are stopped.
> >
> > b)It also suggests that there is a scope for
> oracle
> > clusterware to evict a node and yet not reboot it
> > immedaitely .The remaning nodes start recovering
> the
> > transactions however the evicted continues to
> write to
> > the datafiles during the period of eviction to the
> > point where it falls down to the boot prompt it
> will
> > lead to corruption
> >
> > There are some other points
> > Like
> > a)interconnect connect being single point of
> failure
> > b)How to provision voting disks and OCR should i
> ask
> > the storage admins to carve out 5 1GB LUNS so i
> can
> > mirror them ?
> > c)Would the storage admin object if i ask 5 1GB
> luns
> > to be carved out for me as mostly they allocate
> LUNS
> > of 64 GB 100Gb etc
> >
> > regards
> > Hrishy
> >
> >
> >
> >
> >     
>
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> >
> >
> >
> 



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