Category Archives: Storage

Nexus Intercluster Switch Monitoring

We are using the Cisco® Nexus 3132Q-V switches for our NetApp Clusters. To have a good monitoring of these switches you need two types of checks: Checks for CPU, RAM and Hardware-Status from David Barbion Can be found in his GitHub-Repository  My check for current port state (“Are all configured ports in state up?”) Can… Read More »

NetApp United 2018 Team Member

Yesterday I received a very surprising E-Mail from NetApp: I’m in the NetApp United 2018 Team. I’m proud to be elected in this global team. Congratulations to all new members and all members who are in the team again 🙂 Now I’m looking forward to new connections and great networking with the big NetApp familiy.… Read More »

NetApp | Automatic reschedule multiple snapmirrors

We are experiencing a very high CPU usage due to many (in our case >100) simultaneously starting snapmirror transfers at the same time (for example at 5 minutes after every full hour, if using the cron “hourly”). I’ve written a script with distributes all snapmirror relations across four schedules using the NetApp Perl SDK. The… Read More »

NetApp | Destroying foreign aggregates

node run -node <node> options nodescope.reenabledcmds “aggr=destroy” aggr destroy <foreign aggr name> options nodescope.reenabledcmds “” Or the newer, better way: storage aggregate remove-stale-record -aggregate <foreign aggr name> -nodename <node>

Moving Aggregate within a cDOT Cluster from von HA-Pair to another

Use this commands on your own risk 🙂 Take aggregate offline and remove the disk ownership: cluster::*> aggr offline aggr2 cluster::*> disk removeowner 1a.20.* Recable the shelf(s) and reassign the disks to the new node: cluster::*> disk assign -all true -node node3 In the nodeshell, try to find the aggregate and bring it online again:… Read More »