Moshe Yanai (ThinkStorage XiV)

December 14th, 2008 No comments

Today while browsing apparently reached the blog of Moshe Yanai (The Legendary Storage Man).

With more than 30 years of experience under his belt this man is a true Storage Industry Leader.

With him and his team of Engineers, he designed the first ICDA (Integrated Cache Disk Array) back in 1990’s. Took EMC from a Memory selling company to being one of the greatest Storage Company’s today.

Moshe use to be a tank commander in the Israel Army and during those days came up with the idea of a cache based disk array. He approached IBM back then and HP and no one was ready to buy into his ideas. Until EMC a memory company stepped in and gave Royalty to Moshe for developing and selling these ICDA systems (Moshe got a cut for every Symmetrix that was sold). Moshe truly took the Symmetrix line of products very far. If he would still have been with EMC, we wouldn’t have possibly seen the development of fiber based disk array’s like the DMX, DMX2, DMX3 and DMX4’s.

But he is in true sense a storage master and visionary that came up with the brilliant idea.

You can read Moshe Yanai’s Blog here

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………