SAN-NAS Storage Buying Guide 2018 - ResearchAndMarkets.com

September 7, 2018

DUBLIN--(BUSINESS WIRE)--Sep 7, 2018--The “SAN-NAS Storage Buying Guide” report has been added to ResearchAndMarkets.com’s offering.

NAS, or Network Attached Storage, is normally attached over a Local Area Network (LAN) using Ethernet but can use other physical transports such as InfiniBand. NAS systems present file storage to a host server. NAS data is accessed as a sequence of data enclosed inside a file that itself is located inside a directory within a file system. File systems are mounted for UNIX/Linux and are shared under Windows. All NAS systems are accessed using LAN Network Interface Cards (NICs), InfiniBand HCA (host channel adapters) or similar, on motherboard functionality.

Somewhat complicating our discussion about NAS and SAN storage is the fact that file systems can be readily created out of block storage. In contrast, NAS systems don’t normally supply block services. Nonetheless, some NAS systems also support block storage protocols and, as such, can provide unified storage or file and block storage from the same storage system.

SAN is an acronym for Storage Area Network and traditionally meant FC (Fibre Channel) attached, networked storage system but now can also mean FCoE (Fibre Channel over Ethernet) attached storage or IP storage area network (IP/SAN) attached storage using iSCSI (Internet Small Computer System Interface). SAN storage systems present block storage to a host server. Block storage is accessed as a collection of numbered blocks within a Logical Unit Number (LUN or volume) for UNIX/Linux or a drive letter under Microsoft Windows. SAN storage is connected to a server via a Host Bus Adaptor (HBA) for FC SAN, a Converged Network Adaptor (CNA) for FCoE SAN or a NIC for IP/SAN storage.

Software-defined storage is explained more fully below but can be either file or block but mostly supports block storage. Software-defined storage is scale-out storage and operates on customer commodity severs and uses directly attached server storage, with or without virtualization. These systems generally require 3 or more nodes and use the LAN to share storage accessed via NICs.

Key Topics Covered:

1. Introduction

2. Other storage alternatives

3. NAS storage

4. SAN storage

5. Comparing NAS and SAN storage

6. Summary

7. Glossary

Companies Mentioned

Attala Systems Dell Dell-EMC E8 Storage Excelero Fujitsu HP HPE Hitachi Huawei IBM Infinidat Infortrend NEC NetApp Oracle Pavillion Data Pivot3 Primenergy Pure Storage SGI StorWize WDC Xserve For more information about this report visit https://www.researchandmarkets.com/research/cv88q3/sannas_storage?w=4

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PUB: 09/07/2018 01:49 PM/DISC: 09/07/2018 01:49 PM


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