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SAN explained in most simplest way.......
2008-04-03 22:15:00
There are loads of books on Storage especially Storage Area Network (SAN) but very few can explain SAN in few words that too in a lay man method. Well, i really appreciate Gary for this piece of information, the way he walked through the LAN network , followed by SAN in just 4 odd minutes, applaudable . Even my Grandma understands what is SAN now.Thanks, Gary.Courtesy: Youtube.

All SAN aspirants, a peek inside the server room, check this out.
2008-04-03 21:09:00
Usually, its difficult for the fresh IT proffesionals trying to break into SAN career to get inside the server room and play with big toys (machines) unless you are a freelance consultant, or directly employed with the IT company.This is a cool video for all those who wants to get a feel of SAN technology to start with.. Courtesy: Yotube
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Welcome to the world of virtualization: vmware
2007-11-30 07:16:00
Problem: More work on less hardware , with less people and less time.Solution: Vmware virtulization.What is virtulization:The software layer providing the virtualization is called a virtual machine monitor or hypervisor.Its basically a emulated set of hardware, they just give u virtual hardware environment, you need to install the real operating system and real application. They dont give u packed-up vesion of OS, no, they are not giving you virtual OS, its virtual hardware . Iam here talking about the vmware-workstation product. They just take the existing hardware and present to you as new set of hardware (virtual) , you need to install the real OS and applications on top of it.Note: Applications & OS are real, only hardware is emulated.With vmware, you can have multiple applications in your single machine, independent of each other, each application has its own OS and own set of virtual hardware. virutal hardware is identical where ever you go, virtual machine can be moved fr...
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What is GRUB, it is the first thing you see When you load Solaris, Redhat o
2007-08-17 09:00:00
GRUB is currently available under the GNU General Public License as "free" software, free to share and change. Project was launched in line of creating a free 'boot loader'.GRUB: GRUB orginated in 1995, when Enrich Boleyn was trying to boot the GNU Hurd with the University of Utaha's Mach 4. Enrich then began modifying the FreeBSD boot loader, so that it would understand Multiboot. He soon realized that it would be lot easier to write his own boot loader from scratch than to keep working on the FreeBSD boot loader, and so GRUB was born.GRUB:(GRand Unified Bootloader), is a boot loader package from the GNU Project, it allows a user to have several different operating systems on their computer at once, and to choose which one to run when the computer starts. GRUB can be used to select from different kernel images available on a particular operating system's partitions, as well as to pass boot-time parameters to such kernels.GRUBcan run on any operating system with a Multiboot kern...
More About: Solaris , Load , Thing

I was fool to think Linux as Operating System, its a "Kernel", a part.
2007-08-15 15:33:00
Kerel(Linux ) is a part of Operating System (GNU) :For the past one year, i have been melodiously singing "Linux is a Operating System " , thanks to my laziness to research and vast amount of irrelevant information that is available on the search engines.Untill i came across a document by Richard Stallman, that corrected my "wrong" assumption of Linux as OS.http://www.gnu.org/gnu/linux-and-gnu.h tml,So, what is Linux:Friends, Linux is just a "kernel", it can only function in the context of a complete operating system.( Kernal definition: The program in the system that allocates the machine's resources to the other programs that you run).The "kernel" is an essential part of an operating system, but useless by itself; it can only function in the context of a complete operating system. Many users are not fully aware of the distinction between the kernel, which is Linux, and the whole system, which they also call “Linux”.In simple layman words:GNU an "UNIX-LIKE OS" was already created...
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Learn to lean to Linux if not switch : -A
2007-08-10 13:18:00
I am not asking you to swtich to Linux , learn it as another OS, and in the course of time, see if you like it, if you don't then dumpt it, anyways you always have your Windows by your side, i guess as long as your job does not depend upon Linux, you can always learn it as a hobby rather than as a Job requirement, believe me it is certainly fun!.When i say learn to lean to linux, i mean, you can always have it installed on the other parition as a dual operating system, or if you have a VMWARE (http://www.vmware.com/) tool installed, then you don't even need a separate partition, just get the ISO/Vmware image and start working and learning, as simple as that, though i agree it is not that simple, but if you have a nack of learning and you call yourself tech-savy, then learning "Linux" should not pose you a problem.I am just a average user of Linux, (or may be a novice), i have never under gone any training or learnt it under anyone, it's just that one of our backup-software agent i...
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Installing Samba on Solaris:
2007-08-04 19:17:00
Samba is a useful program to install if your Solaris machine is networked with other machines running Windows. It enables the Solaris system to appear in Network Neighborhood on Windows, thus enabling simple drag-and-drop transfer of files between the systems. Samba also enables the Solaris system to print to printers attached to a Windows system.Samba is supplied in source form and you need to compile it. This isn't difficult! Before doing so, you need to have installed the g(un)zip program and a C compiler. All of these are freely downloadable from the Net and instructions for installing C and gzip are here.Step by Step procedure:http://www.kempston.net/solaris /samba.htmlThe source code of Samba is available from:http://samba.org/
More About: Samba

What is Telnet and SSH?
2007-08-03 20:28:00
What is Telnet and SSH?Telnet and SSH allows you to access your shell account.Are there any differences between TELNET and SSH?TELNET and SSH has long been employed by end-users and system administers to remotely control his or her servers. The key differences is that TELNET establishes a plain text connection while SSH, or Secure Shell, uses an encrypted connection so no one can ears drop on what data is being received or sent.If you need to connect to the web server hosting your web site then SSH is the better option of the two since security is always a major concern, particularly, for businesses. Also, you do not want to legally liable for any damage that may occur from your web hosting account being used for illegal activities.Why SSH?When you telnet to a machine and, say, type your password, every keypress of your password is relayed across the Internet to our server in cleartext. This means that if some nefarious person on one of the routers through which the information pass...

My Diary: Are people genuinely nice ?, but that is not to be....
2007-07-14 15:54:00
I always thought people who appear nice, are genuinely nice, but that is not to be. I have personally come across people, who show warmth and helping hand to the cause, but their heart is not happy and it reflects when they smile or rather pretend to smile . Yesterday someone got appreciated for the outstanding work, but none expressed any excitement or even tried to get in touch to show the appreciation, interestingly it does not show up when they talk or behave socially , rather they maintain the complete warmth and kind gesture as if nothing has happened around, (Phew!!) quite appreciable . Now i realized, the same people must also be jealous of my success, therefore i am prepared to be as professional as 'they try to show up' . I shall practice and appreciate everything that is happening around me, whether i deal with it or not. Feeling happy with others , and for others , is the only mantra to seek happiness without going for 'vipasana'.
More About: Diary , People , Nice

Difference between BLOCK and FILE level Data : -Ashwin
2007-06-24 21:13:00
Block refers to Physical level, the way OS interacts with Disk-Drive, simplest example would be "OS interacting with local SCSI Harddrive in our home/office pc" . It deals with block of disk, there is no file-system attached to it. Clients can not read and interepret block-data if there is no internediate file system like ..NTFS, FAT, Ext3 etc.SQL and Exchange: Are highly write and read intesive databases, in other words, they need faster processing because they process many read and write requests, (Online Transaction Processing) and thats why they deal in "Blocks". Therefore SQL and Exchange database is not recommended on "NAS" or "FIle servers", because these file servers are usually accessed as a mapped or UNC path and the data is moved via "TCP/IP" network and it deals in "File Level" protocol such as "CIFS/SAMBA" for Windows and NFS for (UNIX/Linux) paltforms which is not suitable for Data bases applications.Block storage is normally abstracted by a file system or database mana...
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Affordable Windows iSCSI storage area network : Backup Exec backs up data t
2007-06-24 18:11:00
How to build an affordable Windows iSCSI storage area network, Here in this article, author has shown, how Backup Exec for Windows Server can make use of "NAS" Or another Server's Hardisk as backup drive and transfer data "Block-Level" via "ISCSI" protocol. This is faster than the "TCP/IP" backup.Courtesy:http://www.crn.com/articl e/printableArticle.jhtml?articleId=592010 07
More About: Storage , Data , Network

Interview questions for tech companies : Crack it.
2007-06-21 08:46:00
Please visit the following website for any IT Support / Development / Aministrator's Job Interview Questions and Answeres.http://www.techinterviews.com/It 'a wonderful site for those who are prepraring or in process on any forthcoming interview schedule. You can find interview related question's ranging from :1. Exchange Domain2. Databases.3. Backup Administrator4. Computer Hardware.5. Testing.6. Developer (C++, Java etc)7. Networking.Any, many more.Courtesy: http://www.techinterviews.com/
More About: Companies , Tech , Crack

Old Pune ( Punaka ) : Lost Pune - Pune 50 Years Ago
2007-06-18 13:45:00
'Punaka' is the name by which Pune was known in the ancient times. Pune (पुणे in Marathi), formerly also known as Punavadi and Poona (पूना by British).Some rare photographs:http://www.punediary.com/html /lost_pune.htm#2Picture Courtesy Sakal-Pune esakal.com
More About: Lost , Years , Year , Ears

NDMP ended the monopoly of the Backup software Vendors and File Server vend
2007-06-18 13:17:00
With the invent of NDMP, we have only one "universal agent" for the network- attached file servers to be used by any of the centralized backup administration applications. Earlier Backup vendors had to "develop" many cleint/agent software which would understand different OSes needs, for ex:1. Windows agent for Windows Server s.2. Unix angent for Unix/Linux Servers.3. Solarix agent for Solaris Servers.4. Mac agent for Mac Servers.This not only led to more cost incur on the vendor side for development of these agent, but also customers had to bear the cost of so many agents, further dedicated file servers had to be mounted to such OS so that their data could be backed via NFS or CIFS (SAMBA) file level protocols. Most serious drwabacks were , data had to travel via networks to the central backup application where "tape/library" was attached.
More About: Software , Vendors , File

FIler Definition: -Ashwin
2007-06-14 15:42:00
Filer, is a storage device (cabinet) with an embedded processor and a "light weight" OS that exposes disk units to network-based clients (which are usually servers) . Clients that access NAS-based storage must also run some sort of redirector or client software that lets the OS see the NAS-based disk as locally attached storage.They are used in data sharing applications including the Internet, fibre channel SANs, and Ethernet LANs
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Backup and Restore : By Dilip Naik
2007-06-14 15:24:00
Backup is the process whereby a coherent copy of data is made. Backup has become more important as the amount of data has exploded, not just in importance, but in volume as well. One study estimates that more data will be created in the next few years than has been created since the dawn of history! It is interesting to compare the growth in data storage with the more widely known and appreciated growth in electronic chip density. Recall that Moore's law implies that the amount of electronics on a given chip area doubles every 18 months. A lot of industry analysts believe that the growth in digital storage is actually handily beating Moore's law in the sense that the amount of data doubles in much less than 18 months.Backup and Restore Technologies:http://searchstorage.techtar get.com/searchStorage/downloads/Naik_ch05 .pdf
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Emotionally we differ: Theory behind Misunderstanding
2007-05-30 19:26:00
My views: Misunderstanding is a combination of frustation and jumping to conclusion. Frustation is the main cause because it gives way to false conclusion. I have seen people creating their own clouds of frustation which may shower anytime like the unseasonal monsoon rain . Why do we behave this way, why do we think that way, why do we act that way. Well, the answer to this question could be the attachment we have with the other person, more we get attached, more we take things of granted, and more we do the analysis of that person, and in the process forgots that, each individual is a different person emotionally and mentally. We start creating an illusions about how he or she should behave, how you would like to see that person, how you would like to relate to that person. This is wrong, and would only lead to agony, pain and frustation.Moral of this passage is, do not judge the person as per your parameters, let me ask you : who are you to judge the person ?, God has made each of...
More About: Theory , Behind , Understand , Standing , Under

Trip to Harihareshwar: -Ashwin
2007-05-29 10:33:00
we set off to this place about 180 KM from Pune city on 26th last week that is on saturay, it was a wonderful and ecstatic experience. Journey was very comfortable, thanks to TOYOTA INNOVA and just 4 of us travelling. Roads have been improved and i guess that was another reason for a pleasureable road journey.We reached this place right at the time of sunset, but by the time we got sattled down in the ZILLA PARISHAD guest house , sun was almost setting down, but never the less, just to be there was enriching & exciting , we strolled to the beach and spent some time gazing the beautiful ocean. Whenever i see the Ocean, i feel humble and small, i guess this is what Ocean reminds us of.It is a beatiful place, though it is not well developed, except for 1 MTDC resort, there isn't any good options, if anyone wants to visit this place, i stongly recommend but make sure you have accomodation and food pre-arranged. Otherwise you could be walking from one place to another looking for food, ...
More About: Trip , Hari , Ares

VMware Infrastructure 3 Demo: Magical Suite for IT People / Department.
2007-05-25 11:08:00
A live demonstration video that show you some of the solutions you can build with the VMware Virtualization Suite .Features:1. Running number of Virtual servers off the fewer Physical Server.2. Run different OS off the same Physical Server, its hardware independent.3. You can build Virtual Web-Server, straight on the fly.4. You can create many test setups, straight on the fly using the templates.You can watch this video right here,
More About: People , Department , Infrastructure , Demo

Aankhen bhi hoti hai dil ki zubaan ....I wish.... -My views , Ashwin
2007-05-24 12:59:00
This is one of my favorate song from the film "HAASIL" , It has a beatiful melodius tune and wonderful lyrics. I think what "Ankhen can do, words can not do". I have seen and felt communicating 'ankhon hi ankhon main' , the way "Aankhe" communicates, nothing else can communicate. I have so many time expressed my feelings via eyes, and the messages returned via eyes :)Only problem with "Aankhen bhi hoti hai dil ki zubaan " is that, it can not exchange "Email" and "Mobile Number" like blue tooth. I wish this could happen, i would have made so many girl friends. Only other option is to approach, but the problem lies in the guts, if you have the guts you can approach and be prepared to accept "Yes" or "No", but this would not have required, if we could talk through eyes.In Bus, Train, walking , shopping, and in lifts, you meet so many individuals , who look at you and something strikes, we exchange appreciation and affinity via eyes, but thats it, we can not go any further, and by the...
More About: Views , Baan

Linux Filesystem Hierarchy - Part One , From Binarysignal
2007-05-23 20:12:00
Learning linux was never so easy, its great video for all the beginers or those who wants to learn or switch to Linux for their home or office computing.
More About: Part , Files , Signal , Stem

Linux Filesystem Hierarchy - Part Two, From Binarysignal
2007-05-23 20:10:00
Continuation from Part one,
More About: Linux , Files , Signal , Stem

BAD PASSWORD: it is based on dictionary word | Linux password issues | -Ash
2007-05-21 12:50:00
The most reliable way to change your linux password is via a command prompt. You will need to start a terminal window. At the prompt, type passwd. You will be prompted to enter your current password, followed by the new password and the new password again. None of the passwords will be echoed on the screen.If you do not see the message "authentication tokens updated successfully" there was an error changing the password. Just type passwd and try again. Pay careful attention to your typing. You may get some errors: As shown in the Figure above .BAD PASSWORD: it is based on a dictionary wordBAD PASSWORD: it's WAY too short or similiar.That means your password doesn't meet the password requirements. Ideally it should be at least eight characters long, not based on a dictionary word and a mixture of letters, numbers and characters.Solution: Incase you don't have time to think of any possible good password, make use of the "Online" password generator, the link is given below.Random Pa...
More About: Linux , Word , Issues , Password , Dictionary

Life in a Metro : Go watch it...its worth
2007-05-19 20:09:00
This film carries a great pace , hats-off to crispy editing and equally good performances, which leaves no time to introspect the movie. I recommend this movie to everybody who appreciates new treatment and human emotions. IRRFAN KHAN stoles the whole show, finally Special mention to the PROMO sound track "In Dino Dil Mera" , Pritam brings amazing melody mixed with rock music, when you watch this this sound track along with motion picture, you are touched.
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Penguin Gallery : Funny, Cute and artistic penguins...
2007-05-19 19:35:00
Super-Penguin , Here is a collection of the interesting penguins we have been able to find out there on the net. Note that we're not trying to gather up every occurence of a penguin somewhere - the idea here is to catalog the "derivative" penguins that are on the loose. Please click on the web URL given below to see penguins in different imagination.In the beginning, sometime in early 1996, several people were talking on the linux-kernel mailing list about a suitable logo/mascot for Linux. Of the many, many suggestions, many involved parodies of other operating system logo's - or were strong, noble beasts such as Sharks or Eagles. At some point (I'm not sure when), Linus Torvalds (the father of Linux) casually mentioned that he was rather fond of Penguins - which rather stopped the debate in its tracks.Penguins Gallery :http://lwn.net/Gallery/
More About: Cute , Funny , Artistic

Penguin the Linux Mascot : Story goes like this..
2007-05-19 17:45:00
Linus Torvalds, the creator of the Linux Kernel, was visiting his friend Andrew Tridgell, the creator of the Samba suite. They were walking through the Zoo in Canberra when, without warning, a huge flock of vampire attack penguins dove out of the sky and tried to carry Linus away. Fortunately, Andrew had an umbrella. Still, one of the birds was able to nip Linus' hand with its fanged beak. Rumor has it that on moonlit nights Linus still runs out into the darkness and jumps, stark naked, into icy water. Of course, he's Finnish and may always have done this. In any case, this is why the Penguin is the Linux Mascot.Why Penguins?This email from Linus in response to this very question seems to explain the significance of the Penguin:Letter goes like this:Re: Linux LogoLinus Torvalds (torvalds@cs.helsinki.fi)Sun, 12 May 1996 09:39:19 +0300 (EET DST)Umm.. You don't have any gap to fill in. "Linus likes penguins". That's it. There was even a headline on it in some Linux Journal some tim...
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SAMBA Permission Vs Linux Permission: Who takes precedence
2007-05-19 17:11:00
Few things about Linux and Samba permissions:1. Linux system permissions take precedence over Samba permissions. For example if a directory does not have Linux write permission, setting samba writeable = Yes , will not allow to write to shared directory / share.2. The filesystem permission take precedence over Samba permission. For example if filesystem mounted as readonly, setting writeable = Yes will not allow to write to any shared directory or share via samba server.How do I set permissions to Samba shares? Samba Basic permissions are as follows (configuration file is smb.conf [/etc/samba/smb.conf]):1. Read only: This parameter controls whether an user has the ability to create or modify files within a share. This is default. 2. Guest ok: Uf this parameter is set to yes, the users will have access to the share withouthaving to enter a password. This can pose security risk.3. Writeable: Specifies users should have write access to the share. You can create the share called helpfil...
More About: Sion , Permission , Mission

New Samba 4.0 targets Active Directory
2007-05-18 20:56:00
A next-generation test version of the open source Samba file sharing software has been made available, with features emulating Microsoft's Active Directory ID management software. The popular Samba suite is an implementation of Microsoft's SMB (Server Message Block)/CIFS (Common Internet File System) protocol that allows other operating systems to emulate or interoperate with Windows for the purposes of sharing files or printing.Releasing a new version of the software today in conjunction with a speech on the subject by Australia-based Samba creator Andrew Tridgell at the Linux.conf.au conference in New Zealand, the team behind the software outlined its new features."Samba 4 supports the server-side of the Active Directory logon environment used by Windows 2000 and later, so we can do full domain join and domain logon operations with these clients," the group said in a statement on its Web site, noting this feature was "the main emphasis" for the new software."Our domain controlle...
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Learning Tutorials: Linux | UNIX | Networking
2007-05-18 19:45:00
Learn Unix in 10 Minuteshttp://networking.ringofsaturn.com networking.ringofsaturn.com/Unix/unixguid e.phpCompiling the Linux Kerenelhttp://networking.ringofsaturn.com /Unix/linux-kernel.phpHow Network Traffic Flows – Getting Startedhttp://networking.ringofsaturn.com /IP/howtrafficflows.phpWhat is routing?http://networking.ringofsaturn.co m/IP/Routing.php
More About: Tutorials , Networking , Learning

IBM ENTRY SAN: DS3000 Series, is a S.A.F.E.R option
2007-05-18 11:15:00
S:Scalable :Start with low investment, later Grow to over 14 Terabytes of capacityA:Affordable :Excellent ValueF:Flexible: Can attach to System x, BladeCenter and 3rd Party servers. Best for mixed-server vendor enviornment.E:Easy : DS3000 Storage Manager software makes deployment & installation simpleR:Reliable : IBM qualityWatch Video:http://youtube.com/watch?v=Kbb7xQAC Wxw
More About: Series , Opti , Serie , Erie , Entry