Sunday Oct 19, 2008
Sunday Oct 12, 2008
By rajeshr on Oct 12, 2008
Tomorrow early morning I'm flying to Delhi for a session on Solaris Cluster 3.2 and very clearly I don't think I have sufficient energy to write an essay at this stage. I have started to get a feel of how a marathon is like.
Good week ahead to all of you.
Friday Jul 25, 2008
By rajeshr on Jul 25, 2008
Thursday Jul 17, 2008
Wednesday Jun 04, 2008
By rajeshr on Jun 04, 2008
I'm feeling slightly tired. But as always, it feels good to have done a job assigned satisfactorily. Three days of sessions on Solaris 10 for the folks at TI had me gasping for breath at times, but would offer me a tight sleep tonight for sure. Let me take a moment to thank each of them in the picture above: one, for attending an ILT from Sun and two, for stepping out of TI campus to capture this moment.
I'm certain, Sun's Eco Responsibility VP, Dave Douglas would be more than happy to see the snap above, for it sends across a signal, very clearly, on one of Sun's many serious initiatives viz. Go Green.
Friday May 30, 2008
By rajeshr on May 30, 2008
Sunday May 25, 2008
Saturday May 10, 2008
By rajeshr on May 10, 2008
Friday May 02, 2008
By rajeshr on May 02, 2008
There was an interesting observation on day 02 of this training program. I am mentioning it here, firmly believing that it would be one useful piece of information to someone wandering around in the blogosphere. During the process of Cluster Installation, while the second node in a two node-cluster was being configured using the scinstall command, precisely at a point when the cluster name was specified, the configuration kept failing. Upon running the snoop command specifying the hostnames of both the nodes, the following error was spotted:
sunc6 -> sunc5 PORTMAP C GETPORT prog=100145 (?) VERS=1 proto=TC
sunc5 ->sunc6 RPC R (#140) x10=1209249015 can't authenticate (unknown cause)
Thanks to the internal edition of sunsolve, we figured out that we could eliminate this error, magically, by changing the property config/local_only of the Solaris 10 Service rpcbind (FMRI: svc:/network/rpc/bind) to false.
svc:> select network/rpc/bind
svc:/network/rpc/bin> setprop config/local_only=false
# svcadm refresh network/rpc/bind:default
# svcprop network/rpc/bind:default | grep local_only
Things worked and I was happy about that. But then, how did this property (config/local_only) changed to true, allowing only local connections, in turn resulting in the configuration error during cluster installation? On the same day, at night I reviewed the Security By Default Design in Solaris Operating System and very soon realized that all such properties - like the one mentioned above in this paragraph - are set to true if one chooses NOT to enable network services for remote connections, a question that is asked while the installation of Solaris 10 Operating System. All was very clear. Let me leave you with an additional information revolving on the topic above: When one chooses to disable network services for remote clients in Solaris OS, the profile named generic.xml would be a symbolic link to generic_limited_net.xml found under /var/svc/profile, whereas if it is enabled, then generic.xml would be a symbolic link to generic_open.xml profile in the same directory. To know more about it, click here.
I'm taking the same course next week. Unlike the 99.999 % uptime expected from a Solaris Cluster set up, my job permits me a 'downtime' during the weekend and I really hope to have a peaceful and productive weekend. Wishing you all the same.
Sunday Mar 02, 2008
By rajeshr on Mar 02, 2008
Third and the final day of Sun Tech Days 2008 was meant for the community. It was rightly called as the Community Day. Who else could address us better on such an important day than this man below, whom you would all know as the founder of Debian project. Why did a Linux guy join
Ian clarified that what people meant when they say they want Linux is not actually Linux, but a Linux Kernel and lot of softwares on top of it. He pointed out that the idea of having a variety of distro available wasn't really a good one and further took his discussion to mention about Sun's decision to combine the powerful features of Solaris with good and useful utilities from other side of the world (free and open source softwares like Mozilla, Thunderbird to name a few). After joining Sun as the Chief Operating System Strategist, Ian recalls the first step taken to close Solaris 'usability gap.' I don't think it would be out of context to guide you to an interview with Ian that I read an year back or so. Please click here to read it.
Ian shared with us how excited he was to hear the news about Sun's decision of open sourcing Solaris Operating System, upon which he browsed the official OpenSolaris website only to discover how complicated a process was it to get the OpenSolaris up and running. His blog would supplement what I just mentioned above. And hence Project Indiana. Know more about it and get OpenSolaris Developer Preview 2 [code named: Project Indiana] here.
Ian quickly ran through the breakthrough features in Solaris like DTrace, ZFS etc. and detailed about the new and exciting Image Packaging System.
Ian then reiterated the business model of Sun making it clear to all of us how a bunch of "Garage Engineers," who wouldn't have much money initially would try to get only those products (read softwares) that are freely and easily available, support their business on their own and when their business would flourish, they may possess enough money but not sufficient time to scale up their infrastructure or even to support themselves, which is when they would start turning to the appropriate vendors to support their business. Gee, that's when Sun chips in.
Overall, this last keynote of Sun Tech Days 2008 by Ian Murdock was fantastic and offered a perfect foundation for the Community Day.
Matt Thompson picked up a lucky winner (by shuffling), who got to carry back the last available Java Jacket.
More than a hundred and fifty machines were installed with Solaris 10 OS for conducting our session as well as a Web 2.0 session taught by Stacy Thurston. Alongside Stacy and Ajay, you would those gentlemen who were responsible for setting up the lab for conducting our sessions. Great job folks!
Wednesday Feb 13, 2008
By rajeshr on Feb 13, 2008
And thus on Monday, 20th November '06 we set out for a journey to Little India in the late evening after our sessions. Some times, even such a short segment in life carry an impression that last quite a long period. So many months have passed, still those memories haven't faded: walking through the busy streets, jostled by the men and women of all ages, trying to educate each other on the cultural differences between India and Japan, and finally getting into an Indian restaurant to gobble down some food at night.
It's not that all of a sudden those memories just popped up and I decided to publish in the blogosphere. I've already written about that evening in here. The reason why those thoughts came up again is because Yusuke was here in Bangalore last week and I spent an entire Saturday with him moving around in the city. When I was confused about various destinations that I could take him to in Bangalore, he pulled out a Japanese book from his bag which had a map of India and detailed descriptions about top tourist destinations in and around Bangalore and other Indian cities. It is with that kind of preparations that these folks travel! He flew back to Tokyo the same night, but not before evoking in me the good old memories of that lovely evening spent together at Little India.
Wednesday Feb 06, 2008
By rajeshr on Feb 06, 2008
On the other hand, if you are a Web 2.0 enthusiast, you might want to attend a session by Stacy Thurston, Community Advocate with Sun Learning Services. To know more on what is covered by Stacy and what you can take back, visit here.
To find more details about Sun Tech Days 2008 at Hyderabad, India, browse this page.
You all have a great day
Wednesday Nov 14, 2007
Friday Aug 17, 2007
By rajeshr on Aug 17, 2007
- Sun ZFS Storage 7000 Appliance Administration training in Bangkok
- Wishing A Grand Year 2015
- Oracle VM Administration: Oracle VM for x86 training at Thiruvananthapuram
- A 12 day marathon
- MySQL Performance Tuning Session in Bangalore
- Solaris 11 Performance Management Training
- Oracle Directory Server Enterprise Edition 11g: Maintenance & Operations Training
- Solaris 11 DTrace Session at Hyderabad
- Solaris Cluster Advanced Administration Training
- Sun ZFS Storage 7000 Appliance Administration Training