Drink more water

Drink more water

 - Pic from Internet

- wong chee tat :)

Homage to the 36 trillion, 119 thousand, 500 Amitabha Buddhas

Homage to the 36 trillion, 119 thousand, 500 Amitabha Buddhas

Homage to the 36 trillion, 119 thousand, 500 Amitabha Buddhas

Homage to the 36 trillion, 119 thousand, 500 Amitabha Buddhas

- wong chee tat :)

Homage to the 36 trillion, 119 thousand, 500 Amitabha Buddhas

Homage to the 36 trillion, 119 thousand, 500 Amitabha Buddhas

Homage to the 36 trillion, 119 thousand, 500 Amitabha Buddhas

Homage to the 36 trillion, 119 thousand, 500 Amitabha Buddhas

- wong chee tat :)

Homage to the 36 trillion, 119 thousand, 500 Amitabha Buddhas

Homage to the 36 trillion, 119 thousand, 500 Amitabha Buddhas

Homage to the 36 trillion, 119 thousand, 500 Amitabha Buddhas

Homage to the 36 trillion, 119 thousand, 500 Amitabha Buddhas

- wong chee tat :)

Oct 09th 2017 My Dinner - Grilled Chicken Salad

My Dinner - Grilled Chicken Salad



- Pic from MacDonalds' Singapore


- wong chee tat :)

NLB in Windows 2012 / 2012R2 Servers Notes

NLB in Windows 2012 / 2012R2 Servers Notes

1) Network Load Balancing or NLB
- distributes network traffic across servers 
- provides reliability & performance

2) servers in NLB cluster are hosts. Each host run seperate copy of server applications
NLB distributes incoming requests across hosts in cluster

3) NLB supports HA, Scalability & Manageability

4) For HA, NLB
- detect a host fails or goes offline & recover
- balance network load when hosts are added / removed
- recover & distribute workload within 10s

5) For Scalability, NLB
- balance load requests across cluster
- support up to 32 computers (hosts) in 1 cluster 
- balance server load requests across multiple hosts in cluster
- add hosts when load increase without cluster to fail
- remove host from cluster when load goes down
- high performance & pipelining (requests sent to NLB w/o waiting for response to previous request)

6) For Manageability, NLB
- manage & configure multiple clusters using NLB manager
- load balancing for port(s) using port mgmt rules
- define diff port rules
- direct all client requests to single host
- block network access to certain ports
- igmp support to control switch port flooding
- remote start, stop and control nlb actions
- NLB events in windows event log

7) h/w requirements
- all hosts in same subnet
- no restrictions on network adapters
- all network adapters --> multicast or unicast. No mixed mode
- unicast mode, network adapter must support changing MAC address

8) s/w requirements
- tcp
- static ip



- Reference

- wong chee tat :)

Namo Amitabha Buddha

Namo Amitabha Buddha

Namo Amitabha Buddha

Namo Amitabha Buddha 

- Pic from Internet

 - wong chee tat :)