Systems Administration
02 Mar 2021
Testing the network speed of your IOFLOOD.com server with iperf
With 10gbps and faster network ports becoming more common all the time, it is becoming increasingly important to make sure that a server can actually use all of that bandwidth. At these high speeds, many things can go wrong that limit your performance to less than the maximum speed of the port. The most important
11 Feb 2021
Server Pricing Report – February 2021
Welcome to the Second installment of our monthly server price reporting for 2021. If you were following along, we’ve been tracking changing parts prices for RAM, SSDs, Hard Drives, CPUs, and a couple of GPUs. Typically this is done monthly, and then shared on our blog. Currently, all listed prices are from eBay, for used
04 Feb 2021
Optimal RAID Stripe Size and filesystem Readahead for RAID-10?
What RAID stripe size is ideal for an array of hard drives? What are the default settings for both raid stripe size and filesystem readahead? Are those defaults acceptable? How do these settings impact the performance of my server? In this post, we’ll go into detail as to what settings are ideal for a server
28 Jan 2021
What is TTL in ping / traceroute?
If you’ve run the essential diagnostic program “ping”, you may have noticed as part of the output, it tells you the “TTL” for each test result. You may have wondered, what does TTL mean? Should I be concerned about it? What does TTL actually do? We will explore that question in today’s blog. So first
25 Jan 2021
IOWAIT in Linux — is iowait too high?
High IOWAIT can be a real problem in linux, making your server grind to a halt. The question is, how high is too high? When should I be concerned? Firstly, we’ll talk about what IOWAIT means, discuss related statistics and how to interpret them, and finally how to decide if IOWAIT is causing a problem.
07 Jan 2021
Server Pricing Report – January 2021
Welcome to the First installment of our monthly server price reporting for 2021. If you were following along, last year we’ve been tracking changing parts prices for RAM, SSDs, Hard Drives, CPUs, and a couple of GPUs. Typically this is done monthly, and then shared on our blog. Currently, all listed prices are from eBay,
02 Nov 2020
Server Pricing Report – November 2020
Welcome to the Ninth installment of our monthly server price reporting for 2020. If you were following along, last year we’ve been tracking changing parts prices for RAM, SSDs, Hard Drives, CPUs, and a couple of GPUs. Typically this is done monthly, and then shared on our blog. Currently, all listed prices are from eBay,
06 Oct 2020
How To: Set Up a Paypal Subscription
Welcome to another of our ‘How To’ customer guides! For this post we’re going to walk you through another of the most common questions we get asked in the billing department. How can I add a PayPal Subscription to my account? We know that our customers are busy running their businesses and have better things
01 Oct 2020
Server Pricing Report – October 2020
Welcome to the ninth installment of our monthly server price reporting for 2020. If you were following along, last year we’ve been tracking changing parts prices for RAM, SSDs, Hard Drives, CPUs, and a couple of GPUs. Typically this is done monthly, and then shared on our blog. Currently, all listed prices are from eBay,
24 Sep 2020
Failing Safe – Drive Wipe Policy
Some of you may recall recently we posted a blog post about using checklists to help avoid workplace complacency and customer inconvenience. If you missed it, you can go back and read it here: https://ioflood.com/blog/2020/08/06/check-one-two-three/ No matter how comprehensive your checklists may be, there will always be weak points that can cause confusion, concern, or