All-in-One Research Guides:Data Storage Basics
Data storage hardware
RAID technology
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RAID-53: RAID by any other name
Tip - RAID 53 has a much higher transaction rate than RAID 3, which is achieved by striping the data across multiple RAID 3 arrays.
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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.
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Ask the Expert -
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RAID types and benefits explained
Ask the Expert - RAID, or redundant array of independent disks, can make many smaller disks appear as one large disk to a server for better performance and higher availability.
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RAID 10 and RAID 01: Same or different?
Ask the Expert - The differences between RAID 10 and RAID 01 are explained.
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A failed RAID drive needs immediate attention
Tip - This tip emphasizes the importance of replacing a failed RAID drive immediately and the possible consequences of not doing so in a timely manner.
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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.
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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.
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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...
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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.