Category Archive For: RAID

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DSS V6 powered Duplex-Server, a better Dual Controller

Recently I was reading an old post about the end of the Dual Controller Architecture. www.informationweek.com/news/storage/ Today, almost 4 years later still Dual Controllers is kind of an obvious choice ...

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SSDs

To use or not to use SSDs? That is the admins question!

It’s quicker, it’s lighter, it does not generate any noise and has a lower work temperature…Furthermore, it doesn’t have any mechanical, moving components so it offers you not only a ...

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RAID 5, RAID 6

RAID 5? RAID 6? Or other altErnativEE?

Here we are with the next part of our RAID series. This time the article will concern RAID 5, RAID 6 and two alternatives – RAID 5E and 5EE. Take ...

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RAID 2, RAID 3, RAID 4

RAID 2, RAID 3, RAID 4 – what it is, how it works? The history lesson

After RAID 0 and RAID 1 (with RAID 1+0 and RAID 0+1) it is time for RAID 2, 3 and 4. Here we present a small description of the mentioned ...

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RAID 3

What are RAID 1, RAID 1+0 and RAID 0+1

This is the second article from our RAID series. We hope it shows – in the easiest possible way – what RAID is, the idea of it and how it ...

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RAID 0

What is RAID 0

We published an article about RAID 5: “How does RAID 5 work? The Shortest and Easiest explanation ever” – now is the time for the whole series.  We will try ...

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Hardware failure

Hardware failure, RAID rebuilds, and Data/Volume Replication

Hardware failure can be a show stopper for any shop without proper backups and hardware reserves. It can be very costly to send hard drives for data recovery. Even with ...

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Iometer

Random vs. Sequential explained.

Very often, storage product users do not know what kind of performance numbers to expect in real operations. Why do storage vendors claim such great performance when measured by an ...

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Open-E logo

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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Open-E logo

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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