Access "Beyond basic RAID"
This article is part of the Vol. 1 No. 8 October 2002 issue of Tame the e-mail beast: Valuable e-mail management strategies
Most people know their RAID 0, 1 and 5, but beyond that, things can get pretty hairy, pretty fast. Below are examples of some of the more exotic RAID levels you may come across. WHAT PROS CONS RAID 6 Like RAID 5 (block level striping and distributed parity), but with dual parity for each data block Improved fault tolerance over RAID 5 - can handle the failure of any two drives in the array Slower writes than RAID 5 RAID 30 Striping (RAID 0) across RAID 3 (byte-level striping with dedicated parity disk) sub-arrays RAID 0-like speeds, with increased fault tolerance Complex, expensive to implement RAID 51 Mirroring combined with block striping and distributed parity Maximum fault tolerance and availability through mirroring and distributed parity Low storage efficiency Access >>>
What's Inside
Features
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Analyzers bulk up for storage
by Michael Movalli
On today's high-speed Fibre Channel networks, analyzers need more memory, disk and speed than ever before.
- iSCSI Products Flood Market
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Cisco Joins FC Switch Club
By the end of the year, Cisco will begin shipping the fruits of its Andiamo acquisition, the MDS 9000 series fabric switch and director products.
- Protect Data at Rest
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Easing the Pain of NAS Backup Headaches
Installing NAS device after NAS device may be as easy as pie, but backing them all up can be a royal pain.
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Where ATA arrays can save you money
by Matthew McKenzie
ATA arrays can save you money if you use them where their limitations don't have a deleterious impact.
- High-Availability Switches Still a Moving Target
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Pay the right price for storage
by Tony Prigmore
You can spend too much for storage, but you can also underspend. Here's how to figure what you should pay.
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Book Review
by Kit Pitroda
Storage Area Network Fundamentals
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Analyzers bulk up for storage
by Michael Movalli
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Auto provisioning still a tease
by Johanna Ambrosio
Vendors can't deliver full automation yet, but here's what limited help you can get.
- Beyond basic RAID
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Veritas raises the bar with NetBackup 4.5
by W. Curtis Preston
We review the latest version of NetBackup. Find out why you may want to upgrade.
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Where Does Midrange End and Enterprise Begin?
There's an increasingly fine line between midrange and high-end storage, with vendors stuffing midrange systems with more and more hardware and software capabilities.
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HIPAA Prompts Hospitals to Reconsider Storage
With the deadline to comply with HIPAA lurking in the not-so-distant future, the healthcare industry's IT professionals are revamping their storage infrastructures to fulfill the law's security and patient record accessibility requirements.
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Superparamagnetic limit
Superparamagnetic limit
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Tame e-mail storage - before it eats you alive
by David Braue
E-mail is high on the list of applications driving storage growth at most enterprises. A lot of that growth could be avoided with proper management. Fortunately, for major packages such as Exchange and Notes, help may be on the way.
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Which new technologies are worth it?
A look beyond the hype of InfiniBand, smart switches and iSCSI. Which one will work best for you?
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Auto provisioning still a tease
by Johanna Ambrosio
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Columns
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Behind the firewall
Netliant going to the dogs ... JNI dumps InfiniBand ... The British aren't coming, The British aren't coming ... McData vs. Brocade: No love lost.
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Lower your costs by implementing enterprise-class libraries
by Darryl Brooks
Lower your costs by implementing enterprise-class libraries
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It's not all gloom and doom for the storage industry.
Storage Bin: It's not all gloom and doom for the storage industry.
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Snapshot: Block-based storage
How much of your data is block-based?
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The good--and bad--of storage vendor independence
by Stephen Foskett
The good--and bad--of vendor independence.
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What are they thinking?
by Mark Schlack
What are they thinking?
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Behind the firewall
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