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When should I use the different levels of RAID?
Here's a synopsis of the different RAID levels as well as when to use each one. FAQ
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Is RAID only relevant for the enterprise, or should SMBs and SOHOs be concerned with RAID?
RAID is relevant for the enterprise, the SMBs, the SOHOs, and RAID is even appearing in... FAQ
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What is dual parity, distributed parity and network RAID?
There's some confusion and different marketing terms out there. RAID 6 is a common one. RAID 6 is an extension of RAID 5... FAQ
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How come RAID still isn't a replacement for backup?
This is something that's been talked about for quite a while. RAID is really about availability. The idea is, with RAID, you're protecting against device failure, drive failure, component failure or a failure to be able to access that storage... FAQ
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How can RAID address green IT issues and power and cooling challenges?
RAID is a tool. It's one of several tools that you should have in your 'green toolbox' or your power and cooling toolbox, if you will. RAID comes into play when dealing with data that isn't frequently accessed... FAQ
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What are some general things to watch out for and be aware of regarding RAID?
You want to look at the RAID, but also the storage system it's being implemented on. For example... FAQ
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What does the future have in store for RAID?
RAID recently was diagnosed as a dead technology. Some people in the industry call it a zombie technology... FAQ
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What are the performance issues with RAID 6 or dual-parity schemes?
With RAID 6, you can theoretically get double the data protection without doubling the number of drives. But you'll need to work around the performance penalty. FAQ
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RAID is 20 years old. Is it as applicable today as it once was?
RAID technology is 20 years old. Is RAID still as applicable today as it once was? FAQ
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Where is the best place and best technique for implementing RAID?
Of course it's the old adage: Wherever it makes sense. And where does it make the most sense? Well, its whatever... FAQ
- See More: Essential Knowledge on RAID
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Nevex adds flash caching software, Overland revamps RAID for SnapServer
SNW Fall 2011 opens with startup Nevex adding flash caching software to eliminate I/O bottlenecks, and Overland Storage introducing SnapDragon with DynamicRAID. News | 11 Oct 2011
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LSI CacheVault protects data with NAND flash; more data storage news
LSI’s MegaRAID CacheVault protects data with NAND flash and replaces Lithium-ion batteries with super capacitor; IBM, Violin Memory set file-scanning mark; and more storage news. News | 22 Jul 2011
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Drobo, MicroNet add beefier SMB storage systems
Drobo gets into SMB NAS with DroboPro FS and Drobo Sync for off-site backup, and MicroNet expands its digital media platform with RAIDBank5 with support for USB 3.0 and hardware-based data encryption. Article | 05 Oct 2010
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Data Robotics CEO: Drobo makes RAID data storage easier
Data Robotics CEO Tom Buiocchi says the Apple iPad and RAID are on opposite ends of the innovation spectrum; Drobo platform strives to make storage easier than common RAID. Article | 04 May 2010
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RAID disk arrays in small business data storage environments today
RAID disk arrays are still popular in enterprise data storage shops, even 20 years after they were first invented. Learn about what's new in RAID for your SMB. Article | 13 Jan 2010
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Pivot3 and Seanodes increase performance, scalability of iSCSI storage products
Pivot3 Serverless Computing iSCSI systems get RAID 6e protection and scalability, while Seanodes adds solid-state drive (SSD) support to its Exanodes iSCSI software. Article | 23 Jun 2009
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Fujitsu adds DX60 and DX80 midrange disk arrays to Eternus line
Fujitsu's DX60 and DX80 replace the Eternus 2000 series with a new single-controller entry model starting at under $6,000, and a new approach to battery-backed cache. Article | 08 Jun 2009
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Storage Decisions Chicago 2009 Session Downloads
Download all the sessions that were presented to storage professionals at the recent Storage Decisions 2009 conference in Chicago on topics including backup, SANs, storage virtualization, storage management and disaster recovery. Article | 03 Jun 2009
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MAID product roundup
MAID and spin-down storage systems play into recent green IT and consolidation trends, and analysts predict most storage systems will one day offer the power-saving features. Article | 28 Apr 2009
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MAID technology remains underutilized
Analysts say MAID is still not fully employed in data centers. But regulations mandating more power savings will help drive the technology, as will the rise of persistent data. Article | 28 Apr 2009
- See More: News on RAID
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RAID technology advances with wide striping and erasure coding
Discover why technology like wide striping, storage virtualization and erasure coding is changing our assumptions about RAID technology and data protection. Tip
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Erasure codes: The foundation of RAID 6 arrays
RAID 6 arrays offer users better data protection because they utilize erasure codes that make them more reliable than current conventional parity solutions. Tip
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Self-healing systems and RAID technology
Find out how Atrato, DataDirect Networks, Panasas and Xiotech use RAID technology in self-healing systems and also deal with hard disk drive (HDD) failures. Tip
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Managing data storage capacity on RAID
With data growth increasing every day, the challenge of managing data storage capacity on RAID is also increasing. This is raising some questions about the integrity of RAID, so new technologies are emerging with higher capacities and more capable dr... Tip
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New data protection schemes impact RAID rebuild times
Data protection isn't just about protecting disks, but information. Learn about technologies that will shorten RAID rebuild times and still give good data protection. Tip
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Optimizing RAID data storage for your business
Learn how to better optimize your RAID data storage by determining where to house your RAID drives, and what RAID level best fits your business needs. Tip
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The state of RAID data protection in enterprise storage today
RAID 5 and RAID 10 are the most common methods of data protection for storage enterprises, but they may not provide enough security for SMBs. Tip
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RAID tutorial: Picking the right RAID level
While there are multiple variations of RAID available today, only six levels actually matter for SMBs. Marc Staimer discusses how to choose the right RAID level for your business based on the application data type, the criticality of that data and th... Tip
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RAID 6 vs. RAID 10
Rick Cook outlines the most efficient uses of RAID 6 and RAID 10. Tip
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Top 5 SAN tips of 2007
Here are the top 5 SAN tips of 2007, based on our readers' interest. This list covers topics such as RAID, SAN performance and SAN management. Tip
- See More: Tips on RAID
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iSCSI storage: How to leverage RAID and ensure server uptime
Learn how RAID can be used with iSCSI storage, as well as how iSCSI storage systems can be configured for high availability to eliminate single points of failure. Ask the Expert
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SATA vs. SCSI in RAID
Storage expert Greg Schulz answers a reader's question: "How does SCSI in RAID compare to SATA in RAID?" Ask the Expert
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Why RAID rebuilds obstruct data migration
The best way to migrate data from 400 GB SATA disks to 750 GB SATA disks calls for a consolidated mid-tier storage solution. If your company does not have a significant enough storage management to justify the purchase of such a solution, your data m... Ask the Expert
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Creating half a mirror out of 3 drives totaling 300 GB
Storage management expert Ashley D'Costa answers a reader's question: "Can I create a logical array from my disk bay, which has two disks totaling 300 GB by installing RAID 0?" Ask the Expert
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Growing a RAID group by adding old drives
Storage management expert Ashley D'Costa answers a reader's question: "Can I add old RAID parts I've collected in my repair shop to my existing server?" Ask the Expert
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How to calculate available disk space on a RAID 5
Storage management expert Ashley D'Costa answers a reader's question: "How do I calculate the disk space available on my RAID 5?" Ask the Expert
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Use of RAID with multiple drives
Storage expert Greg Schulz answers a reader's question: "Please give me an example of when RAID 1 with multiple drives is used." Ask the Expert
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RAID 4 vs. RAID 5
Storage management expert Ashley D'Costa discusses RAID 4 vs. RAID 5. Ask the Expert
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External SATA RAID array vs. system replacement
Storage expert Ashley D'Costa answers a reader's question about the benefits of using an external SATA RAID array over replacing his entire system. Ask the Expert
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RAID-5 configuration
Storage management expert Ashley D'Costa answers a reader's question about RAID-5. Ask the Expert
- See More: Expert Advice on RAID
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RAID (redundant array of independent disks)
RAID (redundant array of independent disks; originally redundant array of inexpensive disks) is a way of storing the same data in different places (thus, redundantly) on multiple hard disks. By placing data on multiple disks, I/O (input/output) opera... Word
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double-parity RAID
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disk duplexing
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storage medium
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hard disk drive (HDD)
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disk striping
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hard disk
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disk cache
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parity
In this definition, learn what parity is and find out how it works. Plus, learn how to define parity bit and parity checking. Word
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The pros and cons of RAID disk arrays in small business data storage environments
RAID is commonly used in many data storage environments for added data protection, however there are several drawbacks when using RAID. Podcast
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RAID basics for enterprise data storage managers
Find out what makes RAID such an effective enterprise data storage technology. We examine the different RAID levels, discuss some of the risks associated with RAID technology, and touch on available RAID array and controller offerings. Podcast
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Nevex adds flash caching software, Overland revamps RAID for SnapServer
SNW Fall 2011 opens with startup Nevex adding flash caching software to eliminate I/O bottlenecks, and Overland Storage introducing SnapDragon with DynamicRAID. News
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LSI CacheVault protects data with NAND flash; more data storage news
LSI’s MegaRAID CacheVault protects data with NAND flash and replaces Lithium-ion batteries with super capacitor; IBM, Violin Memory set file-scanning mark; and more storage news. News
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RAID storage systems update
Read our top content on RAID storage systems, advances in RAID technology, the value of erasure codes in RAID 6, and how to manage RAID data storage capacity. Special Report
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RAID technology advances with wide striping and erasure coding
Discover why technology like wide striping, storage virtualization and erasure coding is changing our assumptions about RAID technology and data protection. Tip
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Drobo, MicroNet add beefier SMB storage systems
Drobo gets into SMB NAS with DroboPro FS and Drobo Sync for off-site backup, and MicroNet expands its digital media platform with RAIDBank5 with support for USB 3.0 and hardware-based data encryption. Article
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RAID data storage for beginners: A RAID quiz
Think you know everything about RAID data storage? Take our quiz and find out. Quiz
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RAID level comparison chart: A free download
Download our free RAID level comparison chart, where the most important RAID levels are defined, along with information about the pros and cons of each RAID level. Download
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Erasure codes: The foundation of RAID 6 arrays
RAID 6 arrays offer users better data protection because they utilize erasure codes that make them more reliable than current conventional parity solutions. Tip
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Self-healing systems and RAID technology
Find out how Atrato, DataDirect Networks, Panasas and Xiotech use RAID technology in self-healing systems and also deal with hard disk drive (HDD) failures. Tip
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Using a storage partition in your data storage infrastructure
Learn about the common use cases for a storage partition in a data storage infrastructure, as well as the differences between a storage partition and a LUN. FAQ
- See More: All on RAID
About RAID
RAID data storage technology divides and replicates data among two or more hard disk drives to achieve greater levels of I/O performance, data reliability and larger data volume sizes. Find news and resources pertaining to the different RAID levels on this topic page.