I have been reading about these external RAID enclosures and have been wondering whether to get one or not. The idea of a RAID 1 +0 appeals to me for the sake of security but does it give a better performance or is it just a lot more to go wrong and a waste of money.
Anyone care to enlighten me please?
It gets my vote.. I've also been using it for years but don't just listen to me... Here's an extract from wiki's RAID
There are three key concepts in RAID:
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Link Removed due to 404 Error). Different RAID levels use one or more of these techniques, depending on the system requirements. RAID's main aim can be either to improve reliability and availability of data, ensuring that important data is available more often than not (e.g. a database of customer orders), or merely to improve the access speed to files (e.g. for a system that delivers
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The configuration affects reliability and performance in different ways. The problem with using more disks is that it is more likely that one will fail, but by using error checking the total system can be made more reliable by being able to survive and repair the failure. Basic mirroring can speed up reading data as a system can read different data from both the disks, but it may be slow for writing if the configuration requires that both disks must confirm that the data is correctly written. Striping is often used for performance, where it allows sequences of data to be read from multiple disks at the same time. Error checking typically will slow the system down as data needs to be read from several places and compared. The design of RAID systems is therefore a compromise and understanding the requirements of a system is important. Modern
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Full article is here:
RAID - Wikipedia, the free encyclopedia
