Data storage hardware

RAID technology

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  • Learn all about RAID storage

    Data Storage Handbook -  This handbook describes the different levels of RAID technology and explains how storage administrators can choose the appropriate RAID level.

  • How to choose the correct RAID level

    Tip -  This tip offers nine things to consider when deciding which RAID level is right for your organization's needs.

  • RAID levels defined

    Tip -  This tip offers a listing of the RAID levels in use today and details the characteristics and applications of each.

  • RAID 4 vs. RAID 5

    Ask the Expert -  Storage management expert Ashley D'Costa discusses RAID 4 vs. RAID 5.

  • RAID: It's alive

    Tip -  RAID is still relevant today, possibly even more than in the past. However, it has become a transparent, standard feature that isn't often discussed. This tip outlines the state of RAID today.

  • Server-based RAID vs. controller-based RAID

    Ask the Expert -  SAN expert Greg Schulz discusses the difference between server-based RAID and controller-based RAID.

  • Cannot retrieve data from RAID

    Ask the Expert -  Storage expert Greg Schulz offers troubleshooting suggestions for a user whose RAID array can't communicate with four units of PowerMac G5 Quad Core.

  • How many disk drives do you need for RAID 10?

    Ask the Expert -  What is the minimum number of disk drives you can have in a RAID 10 array? I have read you must have at least four, but our server admin said it is HP's default, and he can do it on just two drives. This is on a Window Server 2003 with a total of four 72...

  • RAID types/levels and benefits explained

    Ask the Expert -  RAID can allow for better storage performance and higher availability, and there are many different RAID types. Read a comparison of RAID levels, as explained by our expert.

  • RAID 10 and RAID 01: Same or different?

    Ask the Expert -  The differences between RAID 10 and RAID 01 are explained.