Recently I was in a situation where an aggregate in a multi HA pair cluster was low on space. While working to avert the impending disaster I was asked by an incident manager what VMs are on the aggregate that is low on space. Now there where alot of volumes/LUNs on that aggregate. Stopping to…
Category: NetApp
NetApp SFP FC troubleshooting
I was recently in a situation where a number of customer VM suddenly became unusable. When investigating the VMs in vCenter we could see that the disk latency was in the seconds. The back end storage was a NetApp AFF connected to the hosts using Fiber Channel. So looking at the AFF event logs I…
Change NetApp FC ports to Ethernet
I was recently in a situation at work when I needed to stop work on a NetApp AFF redeploy and mount the SAN so some of its original data could be recovered. Now the SAN used Fiber Channel in its old location and its new location was Ethernet. At this point I have re-IPed the…
NetApp performance monitoring using Powershell
I recently had to run some monitoring commands to gather information while a backup was running. So I used Powershell. I needed to SSH on to the FAS and run the following: So why should I do that when I can get Powershell to do it. Here is a quick bit of Powershell to SSH…
Handy Ontap Commands
In my line of work I get to play with a lot of NetApp FASs running Ontap from versions 8 up to 9.7. In that time I have complied a handy little list of console commands that I use often. The following commands are mainly used when setting up (or re-purposing) aFAS (or AFF) Configure…