I recently ran into a situation where i was maxing out the disk IO in a PS6000 SAN with 16 1TB SATA disks. Rather than replace the whole SAN, i wanted to just replace the disks since i wasn’t maxing the network links. I got a quote from Dell for some SAS disks: *whistles* I …
Sep 25
Power DNS returning NXDOMAIN for non-authoritive domains
I came across a weird one this morning while doing a check of our DNS name servers When i did a lookup for google.com against our authoritive name servers, they were returning NXDOMAIN – this is not what it should be returning (should be returning SERVFAIL or REFUSED)! These servers are neither authorised for google.com …
Aug 26
Cisco Terminal Server quick start
Recently i was playing with a Cisco AS2511-RJ which is a 16 port console server to connect to the console port of other devices. Whilst playing with it, i just wanted a quick guide to the commands to use but struggled to find one… A good config example that i liked was here: http://ntlogic.net/2012/05/21/cisco-access-server-as2511-rj-config-and-connections/ In …
Apr 11
VMware domain controller issues
Recently I setup a couple of VMware clusters, as you may have guessed, and joined them to our company AD servers. I followed this blog here: http://www.gabesvirtualworld.com/adding-ad-authentication-to-vmware-sso-5-1/ (thanks Gabe!) as it did a really good job of simplifying what needed to be done. Upon going through it all, i was greeted with a error from …
Mar 06
Migrating from Onapp to VMware
At work we have been using Onapp for almost a year now, and we have had a pretty bad run with it, possibly due to how we were using it. The good points A fantastic GUI A simple user panel Fantastic technical support at levels 1 and 2 But, we also had a few bad: …