What is NAS storage?

Data stored on a computer appliance at a file level that is accessed by an assortment of clients through a computer network is referred to as Network attached storage (NAS). Its elements which are its hardware and software configurations are specially manufactured for this purpose of storing as well as serving files. However, there are times when general computers are used to achieve a similar purpose as that of NAS storage but the output is not usually satisfactory.

Network attached storage systems contain hard drives that exceed one and are arranged into storage containers that are redundant, logical or even RAID arrays. When working with a data storage system that is that is attached to a network such as NAS it takes up all the file serving responsibilities, which essentially relieves other servers that may be on the network. To be able to share these files by giving access to them, NAS storage uses protocols that are able to share the network files and they include AFP, NFS and also SMB/CIFS.

NAS storage can be used in a variety of ways such as the simplifying and lowering the cost of storage systems such as web servers, load balancing and fault-tolerant e-mail. It is also able to be used to store data that consists of multimedia content and that is of large quantities, which might not be easily stored on the commonly available file servers. Furthermore, Network attached storage is not designed in a way which enables it to be used as a server for general purposes. Even though other types of software can be run on it, at a technical level it might face some challenges as they are controlled as well as configured using a browser over a network. Furthermore, the unit used as part of NAS storage does not have a keyboard or even a display as is common with other types of servers.

Overall, the sharing of files through the Network attached storage has gained popularity in the recent years with many organizations adopting it as their data storage appliance. The main reason for the popularity of transferring files among several files through the appliance is because of the convenience it offers. There are other advantages that users of NAS storage have access to in comparison to the use of file servers and they include simple configuration, easier administration and the accessing of data at a faster rate.

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Importance of server

In a lot of enterprises failure of critical applications immediately generates huge losses. Solution for companies expecting reliability HP offers Odessey platform.

10 years ago it was unimaginable that e-mail serving or website hosting could be named as critical application. These days even Skype application on company website could be recognized as such because comunication is a key selling point for e-commerce websites. Another example of critical application is a billing platform, responsible for charging customers using our services. Every break or failure inits operation might be a huge loss for business so every company should build a platform which will be more reliable than platforms with Linux, Windows.

Hewlett-Packard introduced new line of servers called Integrity whicha are part of Odyssey program with the goal of long-term creation of ultra- high availabilityof mission critical class.This platform uses HP-UX, NonStop or Open VMS Oswith Itanium 9500 processors amd for lower expectations environments there are used Xeon E7 processors with Windows/ Linux Os. The most important point of the project is not only remaining of single environment but further development. HP has got development path planned up to 2022 for this project which includes not only hardware but also  operating systems such as HP-UX, NonStop and Open VMS. Long term plans include maximizing of usage of standard devices such as Chasis and even some of the components of the processor.

In new servers of Integrity line will be implemented Intel Itanium 9500 processors. Those processors are faster from the precious ones thanks to faster process of bigger amount of instructions per second. Additionaly HP managed to cut energy usage in sleep mode of 80%.

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Google Api Engine

If you consider buying/ subscribing to VPS service there is alternative to this- programmer platform which allows to host you own web applications in the internet and charging you only for used hardware resources. In PAAS model service provider delivers complete set of tools and libraries, which allows to create and run web applications in cloud. The prime example of such platform is Google Api Engine (GAE), which allows to share your own apps in Google cloud.

GAE Applications are hosted on the same databases as any other Google services such as Picassa, Gmail or Docs. Simple apps can be hosted free of charge. In free plan you are eligible for 1 GB of hard-drive and CPU power to display about 5 million of active www pages. GAE allows to publish applications written in Python, Java and GO, developed by Google. Those applications can be also created with the use of Django, Pylons and wb2py and Java standards such as JSP, JSF or Spring.GAE can be hosted in many diffrent ways.

The basic method is using App Engine Datastore. The other option is Cloud SQL ( similar to MySQL) or Google Cloud Storage- storage space which allows you to keep many Terabytes of data. GAE is fully integrated with other Google services enables you to easily switch between them. In GAE, programmers have a lot of tools at their disposal, which make simple creating and managing of your applications, i.e functionality of sending e-mail ( gmail), URL Fetch to getting data from web services or simple image editor ( which lets you to change size of the pciture, crop it or save it in desired format.) Memcache funtionality lets you to savesome of the data i.e very often loaded pages, in RAM without saving and reading it from database.

As you can see there are many advantages of using such a solution and you are strongly encouraged to try free plan to check if it works for you.

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Network Attached Storage

NAS or rather Network Attached Storage is a technique which we can use to connect directly mass memory with a computer network. Thanks to this we can get access to our data, which are storage in a one place from many points and what is most important there is no any differences what kind of computer system are using ours computers which are connected in this network. This is why it’s a very good solutions for every company.

But if you would like to turn your PC or Server into a NAS Server than you should think about finding some good software, which can help you in this tasks. We can choose from many options, including open sources solutions. Except this of course it’s also available to buy some NAS software. On the market we got various options of this kind products. However before we will decide to spend our money we should look not only on it’s price but also we should check how easy it’s in use. Good NAS software should work on many types of hardware, be flexible for hardware change and supports all important file protocols, should be able to work in a cluster environment. It’s very important to be sure that this kind of products can give us a fast data transfer, snapshot functionality, free updates and technical support.

Thanks to snapshots we can make very quick backup and recovery of data. It’s also very useful when NAS software are connected with anti-virus programs and can give us e-mail notifications. For the best service NAS software should give every business flexible and reliable storage solution, which can also protects data company and increases their productivity. Very useful options is also when the software is pre-configured for immediate use.

As always also here we can use NAS software in different types of configurations. Depends on this how much we would like to spend our money we can choose basic, pro or premium packets. It’s the best way to build a NAS system which suits the best for our company.

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The issue of business storage

It has become a standard in a professional enterprise to draw a lot of attention to the data storage system. This is due to the fact that storage solutions do not only provide quick access to the data for multiple users. The issue of storage also plays a major part in the overall success of the business – it is connected with business continuity, business security and disaster recovery. Therefore, the policy of every company should not neglect it and make efforts to comply with international standards concerning the security and access to information for the employees as well as customers.

There are many devices on which you can store your data and also there are various storage solutions. From the smallest drives such as CDs or DVDs to disk arrays or tape libraries. We can guess that the more users are to share their data, the more complex the storage solution may become. For one or two CPUs it is not a problem to connect to a mass storage device and manage storage and backup operations. However, if we have thousands of users, the most sensible solution is network storage.

Another variable that storage solution will depend on is the amount of data that will be transmitted between the client and a storage device. It is believed that storage area network (SAN) can handle more business operations than network attached storage (NAS), because it uses a dedicated network only for data storage purposes. However, network attached storage is a technology which is developing and many upgrades have been made to adapt it to large business environment, for example by various updates and upgrades, new functionalities and services.

The most universal storage solution which has also been gaining popularity is cloud storage. It may be deployed by companies as well as private users. Cloud storage is a solution which gives a lot of freedom and allows for quick enlargement of storage space to the particular needs of the user. Another advantage is that the clients of cloud storage providers will only bear the costs of actual storage use – the space they have not used can be used by another users. This is a very cost and space- effective storage solution – neither storage space not money is wasted.

To find out more about storage solutions for Cloud, SAN and NAS jump here.

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What is RAID?

Redundant Array of Independent Dinks (RAID) is a technology of combining two or more disk drives into one unit. This disk array improves various parameters of the system– it can enlarge the disk storage capacity or increase the data transfer speed. There are several types of such combinations of disks giving various results respectively. They are called RAID levels.

The basic types are level 0 called RAID 0 or stripping and RAID 1, called mirroring. There are also types of combinations of these two simplest RAIDS into successive levels. RAID 0 is used to improve the speed of data transmission. The data is divided into parts called stripes and each part or stripe sets of data are parallelly transferred to each disk. However, there are disadvantages of this solution. Any disk failure destroys the whole array. The failure of one disk blocks access to data stripes, stripes cannot be retrieved and the whole set of data cannot be reconstructed.

The data in level 0 is not being corrected since there is not any system of error correction when saving. The more disks are connected into such array, the higher the risk of system failure. The disks are not protected against any failure – in case when one disk crashes the data from it cannot be retrieved. RAID 1 (mirroring) is the second option. Here disks are also connected into one unit, but not in order to achieve better transfer speed but to provide much better fault tolerance in comparison with RAID 0.

In mirroring, the data is sent to two or more mirror disks in such a way that one disk becomes a copy of the first.

For this reason, the failure of one disk does not mean the failure of the whole system. RAID 1 structure protects the system from disk errors or failures and it continues to operate as long as at least one drive in the mirrored set is functioning. The disk which fails can be substituted with a new one and the data is copied back to it from the mirror disk.

To find out more check wikipedia site about RAID here.

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Hello everyone

Welcome to my blog. I am an IT engineer currently working as a freelancer for few profit and non- profit projects. I am going to share my knowledge gathered throughout these years and I hope it will be useful for someone. Any questions let me know in the comments section. I enjoy sun, hiking and surfing. I am also keen 4-hour body enthusiast.

Cheers,

Andy

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