As the size of an organization grows, the need for bigger storage also grows. Finally a moment comes when it is no longer feasible to store data in each server’s local hard disk. The more efficient method is to set up a SAN (Storage Area Network) and relocate all data into it.
Before proceeding to benefits of SAN, let’s have a look at the basics of SAN.
What is Storage Area Network (SAN)?
According to the Storage Networking Industry Association’s dictionary (and who knows better than them?):
A storage area network (SAN) is any high-performance network whose primary purpose is to enable storage devices to communicate with computer systems and with each other.
It is basically a collection of storage disks which run on its own network to ensure fast transmission speeds.This means that disk storage is seen by a server as if it were local and not on a network. Also worth keeping in mind is that a storage array by itself is not a SAN; a SAN is the combination of the shared storage array, the network and other devices as a whole connecting it to the servers or hosts.
Benefits of Storage Area Network (SAN)
There are many reasons why you may want to buy a SAN. Some benefits of a SAN include the following:
* Pool disk storage resources and allocate to systems as per need instead of allocating entire disks to systems.
* Storage is shared at the block level instead of at the file or directory level, which implies that individual systems can format the disk space as required or use raw volumes.
* SAN that does scale provides an extra application performance boost by separating high-volume I/O traffic from client/server message traffic, giving each a path that is optimal for its characteristics and eliminating cross talk between them.
* In case one of the disks in the SAN is faulty, the SAN is able to rebuild data from the faulty disk onto a spare disk, depending on the RAID technology practiced.
What type of SAN should small businesses buy?
There are two main types of SANs available: Fibre Channel (FC) and iSCSI, which are basically protocols used to access block-level storage.
iSCSI SANs are more accessible to small- to medium-sized businesses (SMBs) than Fibre Channel SAN solutions due to the cost of equipment. Also, it is required to acquire new skills to manage the Fibre Channel network when a FC switch is used. You can deploy an iSCSI SAN using a conventional high bandwidth IP network while leveraging existing IP network skills.
Components required to deploy a SAN
* Shared storage array with iSCSI ports.
* Storage management software.
* High-bandwidth dedicated IP network segment.
* iSCSI hardware and software initiators (host adapters)
Things to consider before implementing SAN
* Number of hosts supported – The storage array must be able to support the number of servers that will share storage.
* Redundancy – SAN must have include internal components redundancy and the ability to replace them without taking an outage.
* Data protection – Traditional data backup might still be required for offsite data protection though a SAN might come with data protection features.
The author has more than 10 years of experience in IT storage and networking
and enjoys writing on Storage Area Network (SAN). He is also into business selling storage, server and networking solutions to his customers in Toronto (GTA), Canada.
Blow Your Competition Out Of The Water With These Search Engine Optimization Tricks
By increasing traffic to a blog or website, there is a good possibility that there will be a resulting increase in the sales from that source from the additional visitors. Optimizing your search engine will help to make the web site you have made more accessible. In this article you will find great advice for maximizing your optimization efforts.
You should make sure that the search engine optimization you choose, uses a quality and proven technique. Stuffing keywords haphazardly throughout your site won't do anything but lower your audience's confidence in your legitimacy. Consider custom-made content that is specific to your business. This will draw in the audience and encourage them to explore the rest of your website.
When you try to increase search engine optimization, you should make your URL something easy and understandable. It should be clear what your site is about. That way, people will known what they are clicking on when they are looking for something using a search engine and they will more likely click on your site.
In order to help crawlers and spiders index your web site, you should create a site map. A site map is a list of all the pages that make up your site. By creating one, web spiders will be able to discover even the most obscure and hidden pages, as well as to receive other important information. This will increase your visibility on the internet.
If video or audio items are shown on your website, you should have transcripts of these included. The transcripts allow your content to be easily understood by search engine robots. This will ensure your website gets a higher ranking.
Keep your content fresh. While having lots of content is important, it has to be up to date. A search engine will track how frequently your site is updated and this has an effect on your rank in the freshness category. Any form of change, whether it's a news article or a blog post, will help to boost your rank.
As much as possible, stay away from frames in your website. Search engines can't index framed pages. The best that they will be able to do is to index your home page. This means that, if the majority of your site uses frames, then the majority of your site will not be indexed.
If you want to avoid a three to six month period of your site being in a ranking abyss, do not make a lot of link exchanges or buy a lot of links right away. Take your time marketing your site slowly to the internet and your rank will go up much quicker.
If you have embedded videos on your web site, be sure to include them in your sitemap. Doing so lets the search engines know that your video content is actually part of your web site. This will help bring more traffic to your site, since viewers will be more likely to come to your site to watch your video rather than going to an external hosting site.
When search results are shown, it's probably the results showing on the first two pages that will see the highest traffic. The ideas you've read here will help you to build traffic and increase the profits you receive from your website or blog. Optimizing your site or blog can do a lot for your business.