Janusz Bak | Page 11 | Open-E Blog

How Much Storage Can You Squeeze to 4U?

Last week I visited WHD2011 (World Hosting Day) in Rust, Germany. As usual there was plenty of interesting news and lots of ideas on how computing is going to develop ...

April 01, 2011
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Just how important is write cache?

Recently saw the following problem from a customer: They are using Acronis Backup to store their backup on a server powered by DSS V6. From time to time the backup ...

February 25, 2011
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It is Impossible to Delete This File!

This short story is about how important backing up your data is and how sometimes incidents that people have with regards to data loss or having a second copy of ...

February 23, 2011
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Ping-Node – explained.

We wanted to provide you an in-depth explanation of the Ping-Node offering clarifications on its function and usage. Incorrect Ping-Node configuration and functionality can cause problems with HA clusters. The ...

January 25, 2011
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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 ...

January 14, 2011
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A Few practical tips about IOmeter

There are plenty of benchmarking tools available but storage professionals mostly use IOmeter. Unfortunately IOmeter is a little tricky to use. You really need to read the user manual first. ...

November 30, 2010
20 Comments

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 ...

October 09, 2010
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Solution: HA Cluster with VMware ESX 4 and DSS V6

Is it possible to configure 10Gb switchless High Available Cluster?

Business continuity is becoming a more and more important feature. A significant portion of the purchases of our Data Storage Software are in pairs. Customers are using pairs of 2 ...

September 27, 2010
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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 ...

September 03, 2010
44 Comments

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 ...