storage

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Hi , I am mahesh.j a fresher , i would like build my carrier on storage .where i am familer to storage hardware now i would like expertise on it.My question is that how to be expertise on it, so i would request u all help me on it by ur guidlines. what are platform of operating system,application and etc should learn to expertise.If any of them can brief how to go it,kindly requseting u all kindly do the needful .
ASKED: March 21, 2006  9:05 AM
UPDATED: January 30, 2012  8:24 AM

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If you don’t know much about storage, then I do not understand why you plan to build your career on it.

However, start by looking for “white papers” on the web, and reading up on various storage vendors.

Storage is an odd (unusual) choice by itself. There is a lot to learn, but unless it is coupled with an understanding of the types of storage used and the reasons for them, it is not going to help you much.

Bare storage covers things like disks, disk arrays (RAID), tape (yes, tape is still widely used), optical of various types.

Beyond that are methods of accessing: SATA, IDE/ATA, SCSI (of various types), Network Attached Storage, etc.

Then you have to consider what is reading and writing to this storage: Straight Operating systems (Windows, Unix/Linux, Manufacturer-specific O/S’s), Databases which use the underlying operating system and file system, and databases which manage the bare disk on their own.

I’ve barely touched the surface of what I know – AND when it comes to storage, I know very little. But I hope that this gives you some idea of what all is involved and where you should start looking.

Bob

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If you are referring how to become expert to that certain area, you have to take a course preferably on hardware servicing which focuses on storage devices. However, you can also take online courses and learn through self studies and reading online tutorials and guides.

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  • Guardian
    Like Bob mentioned, my asumption is that you want to go for Database administration (O/S platforms and the the Database that use that particular O/S) You have various databases ( Exchange, AD, SQL, NDS,Pervasive SQL and the like ) it just depends which area you want to specialize in and O/S ( Unix, Novell,MS and others). I don't know if you man otherwise.... Elaborate further PS: another area is Server platforms.Just a spec of what is at hand
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  • Almac
    If you are interested in building a career on storage, I would suggest reading the following article on storage related certifications: http://storagemagazine.techtarget.com/magItem/0,291266,sid35_gci949236,00.html To learn more about storage I would look for trade journals such as "Storage" published by TechTarget IT Media. Good luck.
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  • Magic8ball
    Well, there have been some good suggestions here so far. I wish I could tell you some magic way to learn about SAN's, but you have to fall into it like the rabbit hole from Alice and wonderland. Ironically that is a very true analogy for SANs. Learning about SAN's is so difficult because you have to understand such a wide range of operating systems, switches, storage, and applications. It requires understanding all aspects of end-to-end connectivity in a data center. meaning, you need to understand enough about operating systems and systems administration to know what a kernel parameter is and the difference between an HBA and a NIC. Also, it is important to understand what fibre is, and fiber is. Albeita many of us SAN-folk need as much Fiber as we do fibre .. sorry. bad inside joke. Storage Area networks in a nutshell allows you to present to hosts external disk that acutally LOOKS to the operating system as if it were a local disk. So what does that mean? Big deal eah? Well, it is a big deal. If you throw a JBOD in there you are looking at mounting a disk using NFS which has it's own set of latency and overhead. In sum, the speed at which you can write to disk is slower. When you are using a fibre cable to connect SAN storage to a host, the speed is virtually as fast as if it were attached to the local disk. i know that may be hard to believe, but it is all in the configuration of the SAN. Then there is the issue of a switch, and learning the difference between a switch and a hub and a router. You also want to begin understanding why connecting only one path (HBA) to a switch is a bad idea in a SAN environment. Software wise, there are various management applications that allow you to manage your san and external SAN storage but that is a whole different discussion. It is rather more important to understand about multipathing software such as Hitachi Dynamic Link Manager, or Veritas DMP and why it is is so important in a SAN environment. If it helps any, when I began in SAN's many grey hairs ago I had NO idea what I was doing. I came from a solid UNIX administration background but being thrown into the lions den of fibre channel, switches, fabrics, SAN diagrams, managing LUNS, learning what a LUN is, and how to connect a to b to c took over 2 years to even feel comfortable answering basic questions about a SAN. Now that I have depressed you, let me tell you it is very rewarding and very challenging and I have found you become part of a specialized community of 'fibre folk' who are well respected. Best o luck :wq!ben
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