M7Q39: Storage Networking Flashcards
A Storage Area Network (SAN) is the only type of network storage.
A. True
B. False
B. False
Explanation: There are two main types of on-premise network storage solutions: NAS (Network Attached Storage) and SAN (Storage Area Network).
Which of the following storage networking technologies allow for Network Attached Storage to be connected directly to a TCP/IP based network?
A. Fibre Channel
B. vSAN
C. iSCSI
D. Jumbo Frames
C. iSCSI
Explanation: iSCSI (Internet Small Computer System Interface) is a storage technology that allows for connecting SCSI based storage directly to a TCP/IP Based network. For example, an iSCSI NAS device can be connected directly to an Ethernet Network
When compared with SAN, NAS is a more cost effective option for building out large amounts of storage in a network.
A. True
B. False
A. True
Explanation: Traditional Storage Area Network (SANs) are large and expensive storage solutions designed to take on extremely heavy loads and provide high speed access between servers and storage. NAS (Network Attached Storage) on the other hand is a much more simple and less costly solution that provides storage that attaches directly to the network similar to a basic file server. While a NAS may not be quite as fast as a SAN in terms of server to storage access it is still very viable and can provide many many Terabytes of storage space.
Which of the following storage networking technologies allows for the pooling of different types of storage from all around the network into a single storage environment.
A. Fibre Channel
B. vSAN
C. iSCSI
D. Jumbo Frames
B. vSAN
Explanation: vSAN is a newer technology that allows for the pooling of storage from all around a network and is manageable through a single application or vSAN interface. vSAN technology provides storage redundancy without the complexity of a traditional SAN.
Jumbo Frames are configured by increasing the MTU size on network devices to 9000 Bytes. Jumbo Frames are used to increase throughput of storage devices on Ethernet networks, but if configured incorrectly can cause MTU mismatches and cause problems in the network as well.
A. True
B. False
A. True
Explanation: Configuring Jumbo Frames means the storage devices can send larger (up to 9000 Bytes rather than the traditional 1500 Bytes) but fewer frames across the network which increases the throughput and efficiency of the storage traffic. However, much care must be used when configuring the Jumbo Frame MTU (Maximum Transmission Unit) size on network devices as a mismatch in MTU size can cause frames to be dropped at the device where the MTU mismatch occurs.
