Turing's Man Blog

SAN vs NAS. The differences explained

I've already advised a tutorial on the fundamentals of SAN (Storage Area Networks). We can assume that previously recommended material on SAN ("Introduction to SAN by Dot Hill") was detailed enough for data center professionals who are not directly specialized in storage technologies. Therefore, to gain the complete view on the storage subject, we should now make a closer look to NAS (Network Attached Storage) technology.

Read more...

SNMP monitoring tutorial by DPS Telecom

SNMP is the protocol designed for remote network devices management, hence its name – Simple Network Management Protocol. At the very beginning, this was aimed to be a temporary solution only, but as it usually goes with temporary solutions, SNMP is with us since 1988 and now can be considered a crucial protocol for remote management and monitoring of not only network devices, but also all kinds of technical infrastructure solutions we meet in data center world...

Read more...

Data center tiers by Uptime Institute and TIA. Short overview

Uptime Institute's Tier Classification System is one of the key-words in the data center industry. Although, there are more talks on it than already certified data centers. What's that? In general, this is widely known as the definition of four levels that describe the availability of data according to the hardware and infrastructure advancement, redundancy and sustainability at a given data center location. The rule is – the higher the tier is given for data center, the greater availability is guaranteed. Therefore, it's good to have a short summary of requirements defined for each level assigned to all four tiers. This can enable us to shortly estimate the answer for the common question – "on which tier are we in fact"? Also, do we have to refer to Uptime Institute only? What about Telecommunications Industry Association (TIA)? Let's take a look and have short reference guidelines.

Read more...

Data center management supporting software from Square Mile Systems

A few days ago I found an interesting information about free ("as in beer") MS Visio 2007/2010 addin – DC Layout – but then I discovered the full offer of Square Mile Systems software for data centers and I realized it is worth to be presented here.

Read more...

Are there any open source alternatives in DCIM world? OpenDCIM is coming!

Data Center Infrastructure Management software? Yes! Thanks to these systems data center professionals can get the real control over their sites capacity, configuration, change management and assets tracking – critical parameters monitoring included! However, when the first hype is over we start to ask questions about... Purchase and implementation costs. At this stage for many of us, especially responsible for smaller server rooms, there is one important question - "do we really need such tool, if we operated without it for so many years?", followed by - "are there any free alternatives?". The answer is - "yes". There is free (of charge and as in freedom) alternative solution – openDCIM which was published on GNU GPLv3 license and reached version 1.0 right now. Let's see what is promised.

Read more...