VNX 5000 Series File Pool Deployment

Automatic Volume Manager (AVM) has always been too simplistic, and never flexible enough when I’m deploying storage for File on an EMC VNX SAN. Manually allocating block storage to the Data Mover isn’t an intuitive task, and contains too many decision points for a novice engineer. This guide takes the EMC VNX Best Practices Guide and breaks it down into a generic tutorial for deploying a File Pool for basic workloads.


Click Here to Download the Guide in PDF Format. 

Delete Unisphere Logs

Taken from EMC Support Primus 284357

I’ve been looking for this solution for a long time, since I started working with the VNX array. A knowledge base article was finally published, and I immediately wanted to help share the information. 


Problem: Unable to delete alerts from the alerts page in Unisphere for VNX. Whenever an alert is deleted, another one with different time or date appears instead. This is an extreme annoyance when a large number of alerts are generated as a result of an outage. E.g. naviagent respawing and generating several alerts per minute.


With out the ability to easily highlight multiple errors, this CLI method is a relief.



1. ssh/telnet into the pirmary control station as nasadmin or root. We will be creating a file for the user nasadmin.

2. Change directory to the /nas/log/webui directory. This directory rsync’s with another log directory in /nbsnas

[nasadmin@CS0 /]# cd/nas/log/webui

3. Delete all alert_log files. I would suggest using tar to back them up first.

[nasadmin@CS0 /]# rm alert_log*

4. Recreate the alert_log file and apply the approriate ownership/permissions

 [nasadmin@CS0 /]# touch alert_log

[nasadmin@CS0 /]# chmod 664 alert_log

[nasadmin@CS0 /]# chown nasadmin:nasadmin alert_log

VNX 5000 Series Install Preconfigure Upgrade

The VNX 5100, 5300 and 5500 arrays with dual control station setups currently do not fully support installation, pre-configuration and upgrade procedures through the GUI. This guide is meant to help those who are not experienced with deploying a VNX array and will mainly focus on the dual control station setup.


Click Here to Download the Guide in PDF Format