Category Archive For: RAID

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What you can expect from SSD?

Hard disk performance is limited by mechanical parts velocity and there is no solution for this issue. Servers are using RAID for redundancy and for performance. Thanks to RAID technology ...

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Data caching, performance and security

I guess that all of us know that caching the data usually increase the performance, but I worried if all of us are aware about risk that caching the data ...

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Fibre Channel

Enterprise Grade Fibre Chanel SAN in 5 Minutes?

I am not kidding. We were getting queries about the performance of our latest DSS V6 build 4786. So I needed to quickly set up a performance benchmark. It took ...

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RAID 5

How does RAID 5 work? The Shortest and Easiest explanation ever!

We all have limited time to study long and complicated information about RAID theories, but you may be interested as to how RAID 5 works. We made it simple for ...

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Formatted capacity confusion clarified

From time to time some meticulous customer will ask us how come a fresh formatted hard disk or RAID array volume is smaller than the nominal capacity.  For example when ...

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Bonding versus MPIO explained

There is  plenty of talk about Bonding and Multipath IO, but it is very difficult to get solid information about either one. Typically what documentation can be found is very ...

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Why a HOT-SPARE Hard Disk is a bad idea

People are a bit surprised every time they hear this question from us. Conventional wisdom about Hot-Spares teaches us that it is a very nice idea: minimizing degraded array state, ...

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