EMC VNX – Updating firmware has crashed. Now what?

June 12th, 2014 Comments off

Today I downloaded the newest firmware update for a pair of VNX 5400. The first update went well. I then started to update the 2nd one. The process took about 2 hours for the first one. I didn’t want to wait so I left it there uploading. About 3 hours later, I went back and this had happened

java crashed

Now what ?

I started to check the VNX, logging in appeared to be fine. The software shows the correct latest version. I performed a few operations , created, deleted a few LUN, everything seemed fine. Should I leave it as that ? Do I want to call EMC and stay on the phone for 2 hours for EMC support helpdesk to check it ?

Luckily, I found out that USM does show the status of the last update. It also shows the time the Update started and the time it took to finish. Everything seems to be perfect.

Note that you can also run a “Health Check”. Click the picture for more details.


Categories: Data Center, Storage

My Cisco CCNP-DC certificate has arrived

May 31st, 2014 Comments off

I just received it today. It took me 6 months to achieve it, compared to 1 year for my CCSP. It’s easier than I thought, mostly because I have been doing Cisco Nexus and UCS for a few years.

The others are my other Cisco certs. Yes, I have that many :)


Categories: Uncategorized

Cisco IOS: How to disable/restart SNMP ENGINE process

May 30th, 2014 Comments off

It has happened quite often to me that many time due to various reasons, I received these errors in Syslog
1 log

Then the switch would slowly start to drop packets, 1 VLAN at a time until it completely crashes. The only fix is to pull the power cords of all of the switches in the stack. Sometime that’s not an option. I found a way to slow down the crashing process by disabling the SNMP ENGINE process.

First, this command would show you the status of the process


The commands to stop and restart SNMP ENGINE are

3 stop

Now that SNMP ENGINE has been restarted, it will give you some more time to schedule a proper hardware restart for the switch.

Categories: Networking

Data Backup and The 7-tiers of Disaster Recovery

May 20th, 2014 Comments off

I found these pictures while looking for resources to make a Powerpoint slide.

This is the best way to explain the 7-tiers of Disaster Recovery

And this one is to explain the Storage 3-2-1 concept for Data Protection best practice


Categories: Uncategorized

Show Planned Percent Complete in Project

May 12th, 2014 Comments off

I find it useful when you have Planned Percent Complete column. Follow these steps to show it

1. Add “% Complete” column
1 percent complete column

2. Go to “Project Tab” and click on “Update Project”
2 Project tab

3. Select the options and click OK.
3 update project

Note that this is not a live update. You will need to do step 2 and 3 everytime you want to update the status of your project.

Categories: Project Management

EMC Protection Features – 1 picture says it all

April 30th, 2014 Comments off

I found this image on the Internet. This is the best way to explain EMC Protection Features to clients


Categories: Uncategorized

Java Application Error – Security Exception

April 28th, 2014 Comments off

I just updated Java to version 7 update 55 and I can’t login to EMC Navisphere anymore. Java V7u55 just decided to stop the local Java apps without even telling you why. I googled it, most website says you have to add the URL to the “Exception Site List” in the Security tab, but guess what, there is no “Exception Site List” any more.


So you will have to do it the “Old school” way, edit file “exception.sites” and add in the URL at


Note that AppData directory is hidden.


Categories: Data Center, Windows