A Storage configuration can be set up using a number of host systems, disk drives, controller cards etc. There are 3 broad divisions of how all these components are arranged/connected to form a whole system.
Instead of defining these, I would rather give an example of each kind of configuration. This is the way I distinguish different storage systems.
1. DAS or Direct attached storage.
The simplest example would be the hard drive attached to your personal computer. The hard drive is directly connected to your mother board through some kind of cable. Normal PCs have SATA disks so the connecting cables are basically SATA cables. You can get an info of what SATA is on the net, or wait till I put in another blog.
2. NAS or Network Attached Storage.
An example would be the web servers you use everyday for your office e-mail. Some LAN connection connects you to the web server and your e-mails etc gets stored in that web server. This is one of the most popular form of storage configurations in use.
2. SAN or Storage Area Network
SAN is a separate network setup to serve only storage devices and servers.
SANs are primarily used in large scale, high performance enterprise storage operations. For example, the way a music portal can maintain all its web contents in its servers. SAN are not only a configuration but an entire business solution in itself.
In following blogs we will see a more detailed view of each type of these configurations with a picture aided view of their architecture.
Monday, September 7, 2009
Monday, August 24, 2009
1st Blog
I will not start writing a full lecture note on this 1st blog. I can let you all know what you can find in this blog.
I currently work for developing storage management applications. A year back I never thought of storage to be a very interesting thing. All I cared about is my laptop has 120 GB of space and that is a lot to store all my e-books and music.
Then I started with this work and came into the world of storage. None of us ever think about how much space we daily use, let us say, just for our mail accounts, every mail we receive now-a-days have some attachment or the other. All these pictures, pdfs get stored in our mailboxes.
Each of us have at least one mail account and if we think about just all our friends with gmail accounts, just imagine how much space our mailboxes occupy at Google's mail server.
Storage management is all about managing such vast amount of storage so that we never feel shortage of storage and never lose any data!!!
In the last one year I have slowly learnt a lot about this management, and I will share with all of you this vast knowledge as far as I can. So keep looking.
I currently work for developing storage management applications. A year back I never thought of storage to be a very interesting thing. All I cared about is my laptop has 120 GB of space and that is a lot to store all my e-books and music.
Then I started with this work and came into the world of storage. None of us ever think about how much space we daily use, let us say, just for our mail accounts, every mail we receive now-a-days have some attachment or the other. All these pictures, pdfs get stored in our mailboxes.
Each of us have at least one mail account and if we think about just all our friends with gmail accounts, just imagine how much space our mailboxes occupy at Google's mail server.
Storage management is all about managing such vast amount of storage so that we never feel shortage of storage and never lose any data!!!
In the last one year I have slowly learnt a lot about this management, and I will share with all of you this vast knowledge as far as I can. So keep looking.
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