Unit 5: Storage and preventing oversubscription

Question 1

What is Best practice for storage in the cloud?

Answer 1

1. have a dedicated LAN for iSCSCI traffic
2. Not to share the network with other network traffic
3. not to oversubscribe the dedicated LAN

Question 2

What causes oversubscription?

Answer 2

Oversubscription occurs when more users are connected to a system than can be fully supported at the same time.

Question 3

What are Initiators?

Answer 3

An initiator is the consumer of storage typically a server with an adapter card in it called Host Bus Adapter (HBA). The initiator “initiates” a connection over the fabric to one or more ports on your storage system which are called target ports.

Question 4

What are targets?

Answer 4

Target ports are the ports on your storage system which deliver storage volumes (called target devices or LUNs) to the initiators

Question 5

What is iSCSI?

Answer 5

A protocol that uses TCP to transport SCSI commands, enabling the use of the existing TCP/IP networking infrastructure as a SAN

Question 6

Name three (3) ISCSI Implementation considerations

Answer 6

1. Private Network
2. Encryption
3. Authentication