Dedicated servers comes at higher prices if associated with a system disk with SAS technology. Here we explained the reasons that lead to a different financial offer by the provider, and when you need to choose the SAS compared to the best known format SATA.
When you configure a range of dedicated servers, many domestic and foreign providers allow you to choose the disk system you prefer, proposing among different types of solutions, often summarized in as many acronyms as SATA, SAS (together with NL-SAS) and SSD.
While the SATA and SSD disks are well known (because used in desktop solutions), SAS technology and its derivative NL-SAS, on which we will focus in the following, are not well known and often do not understand the real difference and the benefits that these proposals can be made to dedicated servers, thus justifying a higher cost for different configurations only disks in the system.
The acronym SAS indicates a technology solution designed as an evolution of the ancient SCSI, so that the acronym stands for Serial Attached SCSI. The evolution of serial SCSI format, which has followed in the footsteps of the evolution of disks from the desktop PATA (Parallel ATA) SATA (Serial ATA), with all the benefits that come with it.
SAS drives are therefore designed for enterprise use, and dedicated servers to ensure not only greater speed also due to a greater number of revolutions of the disk per second (disks now it has come to 15 000 RPM with a transfer rate of 12 Gbps ), but are designed to ensure a high level of reliability, because of not only to the technology itself, but also to the electronic components used to build the units, targeted at the enterprise and thus better controlled by the producers.
The answer is simple: reliability is the price. A SAS disk has a BER (Bit Error Rate) of 1 in 10 ^ 16 , or you can see a bit error per 10 bits of billiards. The SATA drive has a BER (Bit Error Rate) of 1 in 10 ^ 15, then you have a bit error every pool of bits. As these figures are very large in both cases, for applications in which the correctness of the data is critical (as in applications Enterprise), SAS technology is the most suitable. Similarly, for SAS disks changes the Mean Time Between Failure (MTBF) rising from 1.2 million hours (136 years) of the SATA 1.6 million hours (182 years) of the SAS.
These data, plus a whole host of features that SAS technology guarantees with respect to the SATA data port failover on multiple, multiple hosts, hotplug (officially supported also by the specific SATA), simultaneous data channels and enterprise command queuing, which then make the SAS best choice in all cases in which the budget is not a problem, but we look for the highest possible reliability solutions disks to be associated with functions dedicated servers with mission critical.
To bridge the gap between SATA and SAS, are then come on the market the devices NL-SAS , hybrid solutions between SATA and SAS, with the advantages of SAS and reliability in terms of BER and a MTBF of SATA, while maintaining overall performance better than the latter.
In short, if you configure dedicated servers seeks above all reliability, SAS is the right answer in the choice of system disks, but if you look at the amount of space at a competitive price, then it is right to choose the SATA subsystem.
Sometimes the chosen hosting for our personal or corporate website does not meet our needs. Often the accommodation where we have placed our website does not work with the speed we want, does not have the capacity or simply outdated and have the urgent need to change hosting.
However, making a change like this is a real headache for many, especially for less experienced and therefore to follow certain steps to change hosting as smoothly as possible. And one of the key steps is to store all files in the current server to a hard disk, thus you make sure that all information on the web is going to be perfect.
It is essential to backup files on your hard drive of your database, or what is the same thing a backup of the original data in order to have them in case of loss. Once safeguarded, transfer the content to the new server and import the backup of your database to the new service provider of hosting. And do not forget to create new email accounts with your new settings.
When hosting change, a necessary step is to change the name server records where we have registered the domain. And patience, this change requires up to 48 hours. When done, check the site, browse, and see if everything is truly operational. Never forget, delete both database and files from your previous provider.
And if all this seems a mountain, nothing better to put in the hands of professionals for you to carry out a change of hosting, fast and hassle free in the shortest time possible without any loss of information.
If you are running an e-commerce or database-driven website, or if you require a greater access to software choices and the hardware itself, you will probably need a dedicated server. A dedicated host is a server devoted exclusively to your Website that you rent from a Web hosting provider. From the Web hosting provider you rent the server gives you control over maintenance and software configurations. But once you have decided you need a dedicated server, how do you go about choosing the right host?
OS(Operating System): Obviously, the platform, or operating system, you will choose will depend to a large extent on the applications you use and the skills and knowledge you already possess. The two most well-known operating systems are Windows and Linux. Windows are more expensive option, is regarded as the most user-friendly and the easiest to install, especially for those who use Windows on their PCs.
Linux is Cheaper, but people are unfamiliar with the text environment experience a much steeper learning curve. So you must choose a host which uses a platform most compatible with the systems you’re used to. This will simplify the setup and you’ll save time and money by not having to convert to new applications and operating systems.
Data Transfer or Bandwidth: Many dedicated server hosting providers allow you to choose among data transfer levels, usually in gigabytes per month. Because you pay more for higher levels, do not purchase more than needed. You can always increase the amount as needed at any point of time.
Data Backup: If you run a website that is constantly updated, you’ll need to back it up frequently. This can be a hassle to do yourself. Look for a hosting provider that offers back-up services. You’ll probably have to pay an added fee, but the convenience will be worth it.
Monitoring: Your server must be monitored constantly to prevent service interruptions. Check to see if your host can provide such monitoring and how frequently it occurs – every five minutes, for example. Ask what measures are used to handle problems when they are detected.
Automation: As mentioned, running a dedicated server requires a greater level of technical knowledge than shared hosting. However, those lacking technical expertise can still operate a dedicated server if the host offers some form of Web-based automation to simplify the management process. If you want full control over your server, make sure your host can offer such automation.