Author Archive

Back home for the weekend…………..

December 13th, 2008 No comments

After a week of traveling to various cities…..glad I am back home tonight for the weekend. Boston trip was great and fruitful, while the travel was overkilling, the actual excitment of meeting with customer and potentially being able to close the deal was great…..

Spent some time reading quite a few blogs today. 

There is a good blog posted from Dave at NetApp, highlighting the management corelation to todays IT world with Hernando Cortez from the 16th century. 

A Blog posted by Chuck Hollis about DO YOU REALLY NEED A SAN. A brillantly written blog defending EMC strategy and why your storage is not going anywhere……

Technical Blog from Diwakar explaining the Clariion Disk Structure and the importance of the 520 bytes of format style it has. 

The above 3 were the picks of the day…..

EMC Symmetrix and DMX Serial Numbers

December 13th, 2008 2 comments

You always wondered how EMC comes up with these serial numbers for your Symmetrix and DMX Machines.

If your machine serial number starts with HK (it means it was manufactured in Hopkinton, MA) and for most of the international customers if it starts with CK (it means it was manufactured in Cork, Ireland).

With the DMX Series of machines, EMC has introduced two new manufacturing centers (TN and SA).

There are still machines starting with HK and CK that will be shipped internationally and vice versa.

  • The serial number HK would always have a 1 following it.
  • The serial number CK would always have a 2 following it.
  • The serial number TN would always have a 2 following it.
  • The serial number SA would always have a 2 following it.

Here is the Symmetrix and DMX Serial Numbering Convention.

  • Symmetrix 3.0, 1/2 cabinet: HK18160xxxx
  • Symmetrix 3.0, 1 cabinet: HK18150xxxx
  • Symmetrix 3.0, 3 cabinet: HK18140xxxx
  • Symmetrix 4.0, 1/2 Cabinet: HK18260xxxx
  • Symmetrix 4.0, 1 cabinet: HK18250xxxx
  • Symmetrix 4.0, 3 cabinet: HK18240xxxx
  • Symmetrix 4.8, 1/2 cabinet: HK18360xxxx
  • Symmetrix 4.8, 1 cabinet: HK18350xxxx
  • Symmetrix 4.8, 3 cabinet: HK18370xxxx
  • Symmetrix 5.0, 1 cabinet: HK18450xxxx
  • Symmetrix 5.0, 3 cabinet: HK18470xxxx
  • Symmetrix 5.5, 1 cabinet: HK18550xxxx
  • Symmetrix 5.5, 3 cabinet: HK18570xxxx

The DMX Serial numbers still need more research because its hard to find a trend with the numbering convention on it.

  • DMX800: HK18790xxxx
  • DMX1000-S: HK18740xxxx
  • DMX1000-P: HK18746xxxx
  • DMX2000-S: HK18770xxxx
  • DMX2000-P: HK18776xxxx
  • DMX3000: HK18788xxxx
  • DMX3000-M2:HK18789xxxx
  • DMX3: HK19010xxxx
  • DMX4: HK19110xxxx

It is very important that you Service processor Serial Number is exactly similar to that of the Symmetrix / DMX Serial Number (As defined in the BIN FILE). If both these serial numbers are different, your basic symcfg discover commands will fail.

Your actual hardware Symmetrix / DMX Serial Number can still be different than the Serial number defined in the BIN file, since the BIN file serial number takes precedence.

The find your Symmetrix / DMX Serial Number look at the front and back of the Symmetrix on the top, the number should begin with HK or CK or TN or SA.

To find your Symmetrix / DMX Serial Number from the service processor, run E7,CF or you can also try to run symcfg discover or syminq from the service processor via SYMCLI located C:\Program Files\EMC\Symclibin. One option before running this, you can delete the file located on the service processor called symapi_db.bin located C:\Program Files\EMC\Symapidb. During the symcfg discover process, this file will be recreated. The logs if this operation fails can be found at C:\Program Files\EMC\Symapilog.

It is very important you do not change your Symmetrix / DMX Serial number since the FA WWN are determined using the last two digits of your actual Serial Number. If you change this, all the WWN’s will change causing your FA’s, Disk WWN etc to all change. As far as my knowledge, this can only be changed through a BIN FILE change.

Windows vs Mac (My Lenovo Thinkpad vs a Mac Book, can i really upgrade to a MAC)

December 12th, 2008 No comments

What a day…… back home late last night from Atlanta, had to go to office early morning today for some meetings. Wrapped up all by 4 PM and left to go to Boston at 6 PM. With the northeast storm system moving in, by the time I got to the hotel atleast after a 6 hour nasty rain / ice drive….


So I got a call about 2 weeks ago from the EVP of Sales and Marketing at the company asking to see if there was anything we can do to get him a MAC rather than him using an IBM Thinkpad (now Lenovo). It was really the first time I heard that from someone who has been a Windows fan for years or rather a request from one of the top Execs at the company.

Oh….the reason people come to me to ask about a new laptop / desktop is because I head the IT Operations: have responsibilities for Security, Networking, Applications, Software’s, Databases, Hardware (Servers, Desktops, Laptops). So I have been a big fan of IBM Thinkpad laptops, every laptop we buy is absolutely an IBM now Lenovo Thinkpad T Series.

Last weekend I was travelling to NC to meet up with my family. During the visit, I helped my Uncle fix atleast 4 of his PC’s in his Office, and he went to tell me all the problems he has been having with it.

My cousin in NC has been using a Thinkpad T 41 for 5 years now and it’s really time for her to upgrade her laptop. So she just wanted to buy a Mac book and nothing else. We went to the apple store to purchase the 13 inch Mac book. Once we brought it home, I got to play with it for couple of days to setup stuff, etc, it was great!!!!

I have been a windows person myself for the past 7 years since I entered the computer industry. All we run at the office is a windows based environment. Never thought there would be anything else good and better than this. I just upgraded my T43 to a T500 (I believe it’s a replacement model for a T61). I love it (or maybe I loved it the first couple of months). All my home Desktops and laptops are windows based.

So now past weekend my wife tells me, if we could look at purchasing a Mac book for her rather than upgrading her PC, I conservatively said, let’s think about it. She bought an iPhone about 8 months ago and she loves it. I had a chance to play with it earlier in the days when she purchased it (or we used our Amex Platinum Points to buy it).

My Lenovo Thinkpad T500 is great, but about couple of weeks ago (I have it only for 2 months now), I started having this issue with it where it would freeze up and the only way to recover it would be to restart it. The last several days, it has been so bad that I have restarted my laptop atleast 14 times.

After all these reboots, at least one think I learned is that my outlook is freezing it up for some reason. How can you run your pc and work without running your email program. Tried installing windows patches, tried installing office patches, but nothing.

I am really getting very frustrated at this point and really want to look at purchasing a MAC book. Will have to give my T500 back to the company. Also will possibly get my wife a Mac book for Christmas this year. But the challenge I have is everything we have it windows based, there are several programs like Microsoft money etc I use that are absolutely not available on a Mac platform. But I think initially with running parallels or bootcamp, I will be able to get around it. Most of the other programs we use at office all have MAC versions like blackberry, office, etc, so I believe overall we should be okay. It will be challenging to do Windows Administration using a MAC though, but with remote desktop life might be easy.

Anyways, I think it’s time for me to wish myself good luck and see if this is really feasible to upgrade myself to a MAC book………

Concentration of Storage Machines based on Geographic Locations

December 11th, 2008 No comments

So when I created this blog using Blogger, I had a chance to review Google Analytics (data for the visitors is collected and analyzed). The beauty of it is you can track your visitors based on geographic locations, concentrations and importantly what data the user wants to read. Based on this we are now able to find where most of the Storage is located in the world. Also Analytics, Lijit and Feedburner will give you search terms used by your users to reach to your site, which does tell you, what your reader reads, what info he is interested in and if he likes what he reads based on the time he spends on the page.


So based on all the visits, here is a very important piece of information related to Storage Concentrations in the World.


The most concentration of Storage machines is possibly on the East Coast of US. Following that is the Bay Area in California and then Dallas Metro. Other states do seem to have a fair share of Storage Machines but I believe the above 3 would be where we might have at least 20 to 30% of all the storage worldwide. States like Montana, Idaho, Wyoming, Hawaii and Alaska seem to have the least concentration of Storage in the US.


Internationally, a lot of hits seem to come from UK, around the London Metro. Most of the storage related hits are from Western Europe, including Sweden, Norway, UK, France, Germany, Italy and Spain. This is another large chuck of the business for the Storage OEM’s.


After that area, the most EMC, STK, Hitachi related hits come in from South East Asia, India topping the list – Bangalore, Hyderabad, Mumbai, Pune, New Delhi (I believe that would be because of outsourced Storage Administration there), next is Singapore, Indonesia, Philippines and China. In China the most concentration is around Beijing, Shanghai and Hong Kong.


Another important area for Storage concentration is in Middle East, a ton of keyword searches from Dubai (UAE) and Saudi Arabia. Believe it or not, Iran and Iraq is where they have Symmetrix and Clariions as well.


Next in the list is beautiful Australia, but hits for symcli and clariion related searches are limited to Canberra, Brisbane, Sydney and Melbourne. I have been to Australia several times, and a ton of EMC concentration is around Sydney and Melbourne, with some large banks in Melbourne housing data to some world renowned US based companies located in Sydney, it’s one of the big EMC markets.


Lastly on the list is South America, with most of the hits limited from Brazil and Venezuela. I seldom see hits or storage related key word searches coming in from Africa, if any it would be limited to South Africa and Botswana.  


Again you think of the visits above and you wonder, if we ever travel internationally, isn’t it pretty much limited to these geographic areas. I believe at this time, the rest of the world where we don’t see a big activity is where we need to create storage awareness.


Since the blogs I write are about multiple OEM’s, hits are relative to those technologies. I am sure this data will be good for EMC, NetApps, HDS, 3Par, PillarData, SUN Storage and other Storage folks to develop market strategies based on geographic locations.


If marketing guys need any data, please feel free to email me. Be more than glad to share.