Anyone who’s tried to remove Snapmirror relationships using the NetApp commandline knows how painful it is. Recently, I had a need to remove all snapmirror relationships from a number of NetApp storage systems and figured I’d play with NetApp’s PowerShell toolkit to see if I could semi-automate the process.
Background
Isilon, if you’re not aware of it, is a clustered Scale-out NAS solution from EMC. The article below covers setting up a virtual Isilon cluster suitable for experimenting and testing out Isilon in a VMware ESXi-based lab environment.
Scenario and scope
Create a 3-node virtual EMC Isilon storage cluster on VMware ESXi.
This guide is written for ESXi … Read more »
Abstract
This blog post covers how I tracked down when SMB 2.1 support was re-enabled in ONTAP 8.1.x 7-mode, having been disabled in the initial release of 8.1.2.
Scope
This guide is written for fixing a corrupt or broken RLM firmware. It is applicable to both 4.x and 3.x versions of the RLM firmware. Although this may help with other corrupt or broken RLM issues, the most common error this fixes is
[rlm.firmware.update.failed:warning]: RLM firmware update failed, Error Flashing linux.
Last week, via a tweet from Frank Denneman, I discovered a whitepaper that covers the differences between storage IOPS and storage throughput, as well as best practises for performance benchmarking.
As someone relatively new to the inner workings of storage, I found it very enlightening. Particularly the fact that there’s a clear difference between IOPS and throughput, and you … Read more »
Phil is an IT Professional working in Cambridge, England. He generally blogs about Storage and Virtualisation and IT strategy.
