Unboxed: NetApp AFF A700s

Since I’ve installed our fourth NetApp AFF A700s controller today, I think it’s time for a “Unboxed” blog post. First a few numbers and informations. What is a AFF A700s controller? For short: it’s a smaller and limited version of the big AFF A700 controller. It uses the same CPU, RAM and half of the… Read More »

Automated consistent VMware vCSA Backup

For years we have made a backup of all our VMware vCenter Server Appliances through our “normal” backup tool Veeam Backup and Replication. After a big incident with one of our biggest vCSA we identified, that this backup method isn’t consistent and our databases were corrupted. After multiple hours VMware support call we fixed our… Read More »

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 »

RRDtool grading graphs

One of my oldest IT articles from about 2005 🙂 Introduction This HOWTO describes how to quickly generate a nice graph, showing you the average ping time off a specific host. This picture is the result we should get: This setup consists of 4 steps * Configfile * RRDcreate * RRDupdate * RRDgraph Configfile The… 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>

VMware ESXi Multipath Configurations

Set Default Multipath Policy to Round-Robin esxcli storage nmp satp set –default-psp=VMW_PSP_RR –satp=VMW_SATP_ALUA Change ALL LUNs to Round-Robin Multipath for device in $(esxcli storage nmp device list | grep ^naa); do esxcli storage nmp device set –device $device –psp VMW_PSP_RR; done