ComputerWeekly.com
Premium Content

Access "Idea lab"

Published: 27 Nov 2012

Network attached storage in a virtualised environment  In a virtualised environment, network attached storage appliances can serve as a swap space to move virtual machines between servers, act as a backup medium, or play the role of central repository for all virtual disk images.  NAS versus SAN for data center virtualisation storage  There are two major approaches to network storage: network attached storage (NAS) and storage area network (SAN). They vary in both network architecture and how each presents itself to the network client. NAS devices leverage the existing IP network and deliver file-layer access. NAS appliances are optimised for sharing files across the network because they are nearly identical to a file server. SAN technologies, including Fibre Channel (FC) and iSCSI, deliver block-layer access, forgoing the file system abstractions and appearing to the client as essentially an unformatted hard disk. FC operates on a dedicated network, requiring its own FC switch and host bus adapters in each server. An emerging standard, Fibre Channel over ... Access >>>

Access TechTarget
Premium Content for Free.

By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

What's Inside

Features
  • News
    • Data centre management: The battle for control by Nick Booth

      If data centre networks are becoming more important, why are networking pros losing their say in the battle for data centre management?

    • UK data protection regulations get stricter by Tracey Caldwell

      As UK data protection regulations and data privacy laws and their enforcement becomes tougher, enterprises must learn the intricacies of the Data Protection Act and the E-Privacy Directive, among other laws that affect network security.

    • UK heads for a mobile network operator duopoly by Bryan Betts

      UK mobile network operators are dwindling due to mergers and agreements that stifle competition. Businesses must consider the effect this network consolidation will have on mobile services available to them and the prices they will have to pay.

More Premium Content Accessible For Free

  • MPs give Post Office the cold shoulder
    CWE_161214_ezine_18p-MED.jpg
    E-Zine

    In this week's Computer Weekly we revisit sub-postmaster grievances with the Post Office's IT. Despite years of allegations that the Horizon ...

  • CEB 2015 IT Budget Benchmark Report
    CEB 2015 IT Budget Benchmark Report.jpg
    E-Handbook

    IT departments are set to increase their spending by 3.3%, the highest growth seen in five years, this research from the CEB reveals.

  • The most influential people in UK IT 2014
    CWE_091214_ezine_23p-MED.jpg
    E-Zine

    In this week's Computer Weekly, we unveil the 50 most influential people in UK IT for 2014, and interview the winner of our UKtech50 list, Unilever's...