oracle RAC and seriviceguard

[Sreejith Kaliyam]

Hi,
We have two rp7410 with three network card two are 1000SX and one is 1000TX.Can I configure 9i RAC/SGRAC with these cards? Can 1000TX can be configured as standby for 1000SX.What will be the best way to configure HB and primary/User lan.

I Read through some on the manual it says GCM is now integrated to oracle kernal and will user the primary lan as interconnect.Can anybody clarify little more

did HB of SG will carry any GCM traffic??

Please let me know If any body has the best practices and recomedation.

Thanks and regards/anoop

[Steven E. Protter]

You can use the machines and NIC's specified in the question with ServiceGuarld. No problem, even using such an expensive card as a standby.

Best practices for SG is to have an extra lan card as standby for the main lan card. The only thing you can't do is have a guard be standby and use if for the heartbeat.

Heartbeat reequires link level connectivity, and that lan should if possible not be very busy. Congestion can cause loss of heartbeat, the race for the SG device and the TOC of the node that loses.

Best practices is to have a hub or switch be the heartbeat lan so there is little competition for it.

As far as RAC goes, if it starts with a script, SG can work with it.

SEP

[Tom Dineen_2]

SG provides the cluster of two nodes. might want dedicated 1000SX just for RAC, private subnet. have 2nd 1000SX for public, and have the 3rd 1000TX as heartbeat/SG using the public as a secondary heartbeat.

[Sreejith Kaliyam]

Thank you very much tom& stev for your reply

Stev,

Do we have any cross cable connection as like TX in SX?.Is it supported In serviceguard?? If I use cross cable, Can it failover in case of FC card or cable failure??

Tom,
If I have to use 1000SX for RAC DLM trafic,how will I specify it in cluster.ascii file(AS HEARTBEAT OR PRIMARY LAN)? and how will oracle select this NIC for DLM traffic.

What are the minimum network card required for 9iRAC with no SPOF??


Rgds/anoop