Re: compelling arguments for a ThirdParty Cluster

For Solaris here:

   * metalink 283107.1
     
<https://metalink.oracle.com/metalink/plsql/f?p=130:14:370578799665160649::::p14_database_id,p14_docid,p14_show_header,p14_show_help,p14_black_frame,p14_font:NOT,283107.1,1,1,1,helvetica>:
     Configuring Solaris IP Multipathing (IPMP) for the Oracle 10g VIP
   * metalink 368464.1
     
<https://metalink.oracle.com/metalink/plsql/showdoc?db=NOT&id=368464.1&blackframe=1>:
     How to Setup IPMP as Cluster Interconnect



hrishy schrieb:

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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