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Home > Archive > All other certifications > November 2003 > SAN and RAID
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| simmi44139 2003-11-09, 1:17 pm |
| friends I want to know the difference between SAN and RAID and where can I find something related to this topic to get some extra knowledge. | |
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| Storage technology is a very deep field, and you ask a very high-level, non-specific question. But I'll try to help:
SAN = Storage Area Network.
A SAN is a collection of hosts, storage devices and interconnecting devices such as bridges or switches. A SAN is usually implemented over fiber channel, and is segmented into zones by the switches (similar to ethernet VLANs).
RAID = Redundant Array of Independent Disks.
RAID is a way of combining multiple physical disk drives into logical devices such that performance and/or fault tolerance is improved. There are numerous ways of configuring RAID devices, depending on how you want them to perform and how much money/equipment you have to work with.
Probably the best vendor-independent storage certification is offered by SNIA (http://www.snia.org). Other vendors such as EMC, Veritas, NetApp, etc. offer extensive information as well. Good luck! |
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