008 - How Node Membership Happens in RAC? - What is Voting Disk & Split Brain Syndrome in Oracle RAC

Hello Friends,
Welcome you back on exciting topic, today’s session is on
Node Membership || Voting Disk || Split Brain Syndrome in Oracle RAC - Real Application Cluster
Node membership
Voting Disk
Split Brain Syndrome
1) Network Hearthbeat - css_misscount
2) Disk Heartbeat - diskTimeout
Main process CSSD (ora.cssd) and CSSDMONITOR
Voting Disks contain dynamic and static data:
- Dynamic data: disk heartbeat logging
- Static data: information about the nodes in the cluster
Voting Disk basics - Simple Majority rule
OCR registry and ocr administration and backups
#nodemembership #votingdisk #votedisk #splitbrainsyndrome #networkheartbeat #diskheartbeat #interconnect #RAC #Exadata #Oracle #Database
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Mallikarjun Ramadurg
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[@BabitaSingh-rn4ol]

Awesome beautiful nice

[@pratik2720]

Sir ur the life saviour for me and giving for free salute for u sir

[@Mallik034]

Sure More to come on coming days

[@abhishekbhattacharya1852]

Awesome video

[@mojganmansouri9030]

Awesome video. Thanks

[@Mallik034]

You are welcome

[@saavi-saanvitwinsgirl3861]

Awesome sir ..

[@omprakashmishra1947]

It was awesome video.

[@Mallik034]

Thank you!

[@babafakruddink6801]

U just rocked bro

[@Mallik034]

Thank you. Keep watching my videos and do share within your circle.

[@robinindia]

best video sir. thank u.

[@Mallik034]

Most welcome

[@satyajitpatra7753]

Superb Mallik ji

[@Mallik034]

Thanks

[@saifsyed4312]

Please share commands list

[@raghu8140]

Hello Malik, You have given example of Even Voting disk of Number 2, Suppose if we have 4 Even number of Voting disk, then V.D can decide which node has written less data and that node will be evicted, This case will be similar to Odd number of Voting disk, Can you tell is my assumption correct?

[@gotchihaeyo1825]

If both groups have the same number of Nodes, the group that has Master Node survives.