Archive for September, 2008

Exadata – Database Processing Moves into Storage

September 25, 2008

For the data warehouses having Terabytes of data, the key problem is moving the data from the large storage arrays into servers performing the processing – This is termed as the “Data Bandwidth Problem”

Oracle and HP came together and unveiled the new technology called Exadata – The key difference here is the query processing has moved nearer to the storage technology in the “programmable storage server”

This technology should eventually improve OLTP performance too….

Yoga of Attaining Purushottama

September 20, 2008

Om Sri Gurubhyo Namaha.

This is an attempt to summarize the 15th Chapter of Srimad Bhagavad Gita which is the shortest and most profound. (this associates to the essential equality of in the mahavakya tat tvam asi)

15-1. He who knows the pipal tree, with its roots above and branches below whose leaves are Vedas and which is said to be imperishable (avyayam) is the knower of Veda.
15-2. Its branches spread up and down, nourished by the qualities (Guna), its buds are objects of senses (vishaya), its roots grow downward generating bonds of action in the world of men.
15-3. The form (rupam), its end or beginning (adi & anta) are not available here (in this world). Having cut down this pipal tree with strong roots (suvirudha mulam) with the weapon of dispassion (asanga sastrena dhruDhena chitva)
15-4. that supreme state, reaching where one never returns, should be carefully searched. I take refuge) in that primal person, from whom, the creation (Pravritti) stemmed forth.
15-5. Without pride and delusion, free from attachment, dwelling constantly in the SELF, devoid of pairs of opposites, attain that imperishable state.
15-6. Neither Sun, nor Moon, nor fire shines there. Having gone there they return not. That is my supreme abode.

15-7. An eternal part of myself, having become a jiva, draws itself to senses and mind placed in matter.
15-8. When the jeeva acquires and leaves the body, it takes these(mind and senses) like fragrance (of flowers) carried by the wind.
15-9. He (jeeva) enjoys the objects of senses by presiding over (adhisThAya) the mind and senses.
15-10. The Ignorant (vimUDhA) dont see the one who is residing, departing and enjoying in the body, being enveloped by the qualities (gunas); but the wise see through the eye of Jnana.
15-11. Yogis by striving see him; People with impure heart (akruta-Atmanaha) though struggling can’t see him being mindless (acetasah).

15-12. The splendor in sun, moon and fire; Know it to be mine.
15-13. Having entered the Earth, I support all the beings. Having become the sap I nourish all the plants.
15-14. Becoming the digestive fire (visvAnara) seated in the bodies of living beings and unite the life-breaths (prana,apana) I digest four kinds of foods.
15-15. I am seated in the hearts (buddhi) of all beings; From me memory, wisdom and also negation. And that which is to be known in all the vedas am I; and I am the author of all the vedas and vedanta.

15-16. There are two puresas in this world; the perishable and imperishable (kshara and Akshara). All these beings are perishable and the Kutastha is imperishable.
15-17. There is another supreme purusha (the paramatma or supreme person) prevading all sustains the worlds – He is Iswara.
15-18. I am beyond the perishable and also beyond the imperishable, therefore I am known as supreme soul (purushottama)
15-19. He who knows me as purushottama, un-deluded and all knowing, worships me with his whole being (sarva-bhavena)

15-20. Thus the most secret knowledge has been imparted by me. O Bharata! having known this be illumininated and work finished (buddhiman and kritakrutya).

Om Tat Sat.

Raja Vidya Raja Guhya Yogam

September 7, 2008

OM SRI GURUBHYO NAMAHA.

This is the name of chapter 9 of Srimad Bhagavad Gita. Which means the King of Knowledge and the King of secrets. This chapter falls under the second six chapters of Srimad Bhagavad Gita and stress up on the THAT part of “TAT TVAM ASI”

9-1,2: Lord Sri Krishna declares that this chapter as purifier, highest and direct knowledge (pratyakshavagamam) which is Dharma, giver of happiness (sasukham kurvam) and imperishable (avyayam)

9-3: People without faith on this Dharma (the righteous path) will revolve in death and samsara (birth and death cycle)

9-4: This world is spread by the Lord who is formless. Lord says: “All beings have root in me”

9-5: “All the beings are not rooted in me” says lord – Look at this wonderful YOGA of Lord.

9-6: Lord gives an example of mighty air is rooted in Akasa (the space) but the space is never touched by the Air. This is to explain the previous two verses.

9-7,8 : All beings enter my Nature (prakruti) at the end of a world age (kalpa-kshaya) which I eminate at the beginning of the kalpa. I keep emanate them again and again by to force of Prakruti.

9-9: Actions do not bind me as I am seated indifferent and unattached to these actions. >>> This is an important statement made by Lord.

9-10: Under my supervision, Nature (prakruti) sends forth all animate and inanimate beings; Because of this O Kaunteya, universe revolves.

9-11: Not knowing me (the self) foolish people disregard me – who is the lord of all beings who is dwelling in this human body.

9-12: They (the foolish ones) with vain hope, worthless action, useless knowledge become refuged in demonic nature.

9-13: But the Great men take refuge in my divine nature, and knowing me to be the imperishable cause of all creation worship me with unwavering mind.

9-14: Ever Balanced (nitya yuktah) they worship me (the self) with devotion.

9-15: Some worship me with Knowledge, some with Sacrifice, in oneness and in multitude.

9-16: I am the sacrifice, oblation, offering to manes, medicinal plant, the mantra, butter, fire and the burnt offering. –> Declaring that he is all components of Sacrifice.
9-17: I am the father, mother, grandsire, supporter, rk, yajur, sama vedas and the one who is worthy to be known.
9-18: I am the path, husband, lord, witness, abode, shelter, lover, origin, dissolution, foundation, treasure-house and the seed-imperishable (bijam-avyayam)
9-19: I radiate the heat as SUN, I hold back and send forth the rain, I am immortality as well as death, I am the being and also the non-being. (sat, asat, ca, aham, arjuna!)

9-20,21: Those who perform sacrifice as per the three vedas, worshipping me (selfishly) will get purified by sin and attain the world of Indra and enjoy the heavenly pleasures. After the merits gets exhausted, they return back to this mortal world.

9-22: Those who worship me (the self) alone, thinking of no other and always absorbed in my thought, I will take care of their needs and protection. (yoga, kshemam, vahami, Aham)

9-23,24: Even the Devotees who worship other Gods with faith, they worship me alone. But these devotees not knowing me in essence (tattvena) they fall.

9-25: Those who worship Gods reach the worlds of Gods, who worship manes reach the world of manes, worship sprits will reach the world of sprits, But my worshippers will reach me.

9-26: A flower, leaf, fruit, water when offered with devotion, I accept it.

9-27, 28: Arjuna, whatever you do, whatever you eat, whatever you give or perform austerity, do that as an offering on to me.
Thus you will be liberated from the bonds of action, yielding good and evil fruit, and come to me by the YOGA of renunciation (sanyasa-yoga-yukta-atma)

9-29: I am equally present in all beings. None dear to me and none hateful. Who worship me with devotion they are in me and I am in them.

9-30 to 34: Hope for All
Even a great sinner, when taken up this Dharma, with devotion, he should be conidered as a saint as he has well begun. Without differentiation of caste, gender whoever takes refuge in me they will attain supreme goal.
So,
manmanaha bhava badbhaktha madhyaji mam namaskuru
mam eva eashyasi yuktva evam atmanam matparayanaha.

On me fix your mind, be my devotee, sacrifice to me, prostrate to me, Thus uniting yourself with me and completely depending on me, YOU shall come to ME.

Om tat sat.

Technology Transformation and Hiding

September 4, 2008

The latest trend seems to be “Hiding Technology” from business.
Various layers of virtualization, Service Oriented architecture and virtual appliances, automated transformation tools and testing tools are making this trend dominate the current technology market.

The custom business applications and ERP based applications turn more and more service oriented and reduce the dependency on the underlying technical infrastructure.

There will be more and more automation of testing and migration tools at the infrastructure layers let it be application server or the database technology. Does it mean are we going to have a virtual database and virtual application server?

The pay-as-you-go model of technology sourcing is already in. Along with the virtualization, renting model and fast transformation tools, each layer will hide the internal implementation and move towards a OPEN standard based model.

May be we are not very far from service providers providing, CPU capacity, MEMORY/Disk Storage, network bandwidth on a pay as you go model
also we should see further service providers putting these basic services together and providing technology like DB and application on the same model etc., as well as the top end business services like BI and analytics.

Let us wait and watch…