Testing and Troubleshooting

[rainit2006]

• Testing Techniques
• Troubleshooting and tools

[rainit2006]

Testing Techniques

• Configuration Testing test and verify that the cloud environment is running at optimal performance levels.

・network latency: measure the amount of time between a networked device's request for data and the network's response from the requester. OR network's bandwidth, or speed. common test practice : transfer a large files. but this test cannot provide maximum bandwidth. more dedicated software: NetCPS, Iperf ・also need to test data replication between internal data center and cloud provider. ・test application or application server that are being migrated to the cloud -- test application's performance. -- Diagnostics tools be used to collect information: overall resources utilization (memory and CPU), the time to execute program or process ・Test the performance of the storage system ・Test the effectiveness of variety of characteristics on load balance : TCP connection per second, HTTP/HTTPS connection per second.

• Security Testing Before doing any security tests, the organization should review the contract and inform the cloud provider of any test plan. black-box testing and white-box testing

• Roles and responsibilities difference people run difference configuration test

[rainit2006]

Troubleshooting and tools

• Tools IP network: ping, traceroute, ipconfig, ICMP（internet control message protocol）はIPによる通信をサポートするプロトコルである。 digコマンドとは、domain information groperの略。ネームサーバに対して問い合わせを行い、その応答結果を表示するコマンドで、BINDとともに提供されています。 ex, "dig example.com any" nslookup (use local's DNS serve to query.DNSサーバーの動作状態を確認する. ex. "nslookup www.google.co.jp" ), netstatコマンド (get all active network connections, routing tables, network protocol statistics), ARP(address resolution protocol): displays ARP table. ex, "arp -a" telnet: ネットワークに接続された機器を遠隔操作するために使用するアプリケーション層プロトコル。

• Documentation

• System Logs