Welcome to the Flackbox blog, where my aim is to help you build your cloud and data center career. If you’re looking to widen your knowledge across server, networking and storage technologies then you’ve come to the right place. I regularly upload training video tutorials featuring vendors such as Cisco, NetApp and VMware.

Cisco CDP and LLDP

Posted on March 30, 2021 By

In this Cisco CCNA tutorial, you’ll learn about Cisco Discovery Protocol (CDP) and Link Layer Discovery Protocol (LLDP). Scroll down for the video and also text tutorial.   Cisco CDP and LLDP Video Tutorial [youtube v = 1qn3IIQ8tf4 maxwidth = 100%] [testimonial_view id=”1″] &n...

NetApp Centralized Management Software

Posted on March 23, 2021 By

In this NetApp tutorial, you’ll learn about the different Centralized Management products that are available from NetApp that help you with managing multiple distributed clusters spread across different locations. Scroll down for the video and also text tutorial. NetApp Centralized Management ...

Virtual Processor Scheduling – VMware & Microsoft

Posted on March 22, 2021 By

Virtual Processor Scheduling – How VMware and Microsoft Hypervisors Work at the CPU Level

Have you ever wondered how virtual machines get access to the physical processor cores in the server?  Ever wonder why one or two VMs run slow sporadically?  The topic today is Virtual Processor Scheduling.  There are no good books to read on this subject, trust me I’ve looked.  Maybe in 10 ye...

Other Cisco Devices

Posted on March 16, 2021 By

In this Cisco CCNA tutorial, you’ll learn about the other main product offerings that Cisco have other than their routers and switches. Scroll down for the video and also text tutorial. Other Cisco Devices Video Tutorial [youtube v = 0J-CACMCUlE maxwidth = 100%] [testimonial_view id=”1&#...

NetApp Snapshot Scheduling Strategies

Posted on March 9, 2021 By

In this NetApp tutorial, you’ll learn about snapshot scheduling strategies. That’s when you should take snapshots, and how long you should retain them for, and how you should set the snapshot copy reserve. Scroll down for the video and also text tutorial. NetApp Snapshot Scheduling Strat...

Cisco Switch Operation

Posted on March 2, 2021 By

In this Cisco CCNA tutorial, we’re going to take a look at how switches learn MAC addresses and use that information to populate the MAC address table. Scroll down for the video and also text tutorial. Cisco Switch Operation Video Tutorial [youtube v = 7kdxloQeMGs maxwidth = 100%] [testimonial...

NetApp Snapshot Schedules

Posted on February 23, 2021 By

In this NetApp tutorial, you’ll learn how snapshot schedules and policies work. The ONTAP cluster takes scheduled snapshots of NAS volumes by default, now, you’re going to learn how those schedules work. Scroll down for the video and also text tutorial. NetApp Snapshot Schedules Video Tu...

Subnetting on the 3rd and 4th Octet – examples

Posted on February 16, 2021 By

Cisco CCNA Subnetting Examples

In this Cisco CCNA tutorial I’ll work through a couple of subnetting examples. One where we’re subnetting on the 3rd octet, and one where we’re subnetting on the 4th octet. [testimonial_view id=”1″] Subnetting on the 3rd Octet – Example “For the IP address 172.19.21...