Why RAID 5 is OK on SSD Drives?

RAID5 - Why RAID 5 is OK on SSD Drives?

First of all, here is why RAID 5 is so bad and has stopped working since 2009. To recap, two things to blame here. UREs (Unrecoverable Read Error) Disk storage capacity Here is an example to illustrate why it’s so bad having RAID 5 on large capacity hard drives. With a 7-2TB drives RAID 5 setup, when one drive failed, you […]

Network Protocol for Anyone Who Knows A Programming Language

network cable ethernet computer 159304 - Network Protocol for Anyone Who Knows A Programming Language

The network stack does several seemingly impossible things. It does reliable transmission over our unreliable networks, usually without any detectable hiccups. It adapts smoothly to network congestion. It provides addressing to billions of active nodes. It routes packets around damaged network infrastructure, reassembling them in the correct order on the other side even if they arrived out of order. It […]

The Disaster That Hit British Airways

disaster recovery - The Disaster That Hit British Airways

A bit IT disaster hit British Airways past weekend and caused misery for tens of thousands of customers of the airline. Here are some of the resources collected by the guy that runs WServerNews newsletter. Quite a long list of materials to read: To begin with here are a few background news articles which may or not be relevant to […]

13 Free Network Monitoring Tools for IT Pros

network monitoring center - 13 Free Network Monitoring Tools for IT Pros

Compiled by Aaron W from Spiceworks, here are 13 free network monitoring tools that will help you detect when your network is down — and hopefully help you prevent it from going down in the first place. Microsoft Network Monitor Nagios OpenNMS Spiceworks Network Monitor Spiceworks Connectivity Dashboard PRTG Network Monitor The Dude Zabbix Zenoss Core Icinga Pandora FMS WireShark Observium […]