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A storage server is a type of server employed to store and manage digital data and provides a backup
server to keep backup data. A storage server will be useful for storing both minor and major volume of
data more than a shared network. Even though the dependence on storage is clear, it is not always clear
which solution is befitting your company. There are many of possibilities, essentially the most prevalent
are direct-attached storage (DAS), network-attached storage (NAS) and utility area networks (SAN).
Selecting the most appropriate storage solution will be as personal and individual decision. There is no
one right answer for all. Instead, it is very important concentrate on the specific needs and long-term
business goals of the organization. Several key criteria to consider include:
1 - Capacity
2 - Performance
3 - Scalability
4 - Availability & reliability
5 - Data protection
6 - IT staff and Resources available
7 - Budgets concern
DAS (Direct Attached Storage):
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Direct Attached Storage (DAS) is a digital sd card that is attached straight to a server or PC via cable,
meaning that DAS isn't a section of the storage network. A DAS device might be an interior or external
hard drive drive like internal harddrive in PC. These hard drives could be protected with various RAID
levels, depending on data importance and criticality. For the server, a DAS storage is much like its
internal drive or perhaps an external drive that is plugged in.
The principle interfaces useful for DAS connection include Advanced Technology Attachment (ATA),
Serial Advanced Technology Attachment (SATA), eSATA, Small Pc Interface (SCSI), Serial Attached SCSI
(SAS), and Fiber Channel.
It can be worth mentioning that high access rate on account of network absence, convenience of
storage capacity extension, data security and fault tolerance are a few of attributes of DAS. However,
the primary great things about DAS include affordable and ease. Since it doesn't need components of
network storage systems such as routers, switches and appropriate cabling and connections. The
downside of DAS could it be isn't accessible by multiple user groups and just one user at the same time
DAS is among the most basic of storage. The storage tools are section of the host computer or directly
connected to just one server, the location where the workstation must access the server so that you can
hook up with the hard drive. Around the opposite side, NAS and SAN are linked to workstation and
servers over the network. Inside the DAS, when the server is down or experiencing problems, users can't
store and access data. Surveillance images can not be retrieved or stored. In the event the organization
grows as well as new servers, storage per server has to be administered separately.
NAS (Network Attached Storage):
NAS is a type of file memory that connects with a network. NAS devices, which usually will not have a
keyboard or display, provide Lan (LAN) nodes with file storage through a standard Ethernet connection.
The truth is, NAS employs an Ethernet connection for sharing files within the network.
Each NAS around the LAN acts as a completely independent network node which includes its own IP
address. Because the NAS device comes with a IP address, it'll be accessible in the network via that Ip.
NAS devices may be constructed with single drive or multiple drives. The second provides higher
capacity and greater data protection.
The use of multiple computers around the network, can be a candidate for making use of a network
attached storage (NAS) device. Some NAS servers are only employed for burning and sharing files over
the network, and some can perform more tasks, including sharing a printer among the networked PCs,
acting as a media streamer or even a surveillance system by supporting IP cameras.
NAS has benefits including good reading and writing performance, good data redundancy and protection
options, offering security via data encryption, sharing files, copying data from Windows, Mac, and
perchance Linux machines and offering some cloud service for storage and backup.
The effective use of NAS in homes is storing and serving multimedia files and automatic backup. As an
illustration, many smart TVs use NAS to supply centralized storage. If the NAS device has a server mode,
it may also act as a contact, multimedia, database or print server for the small company. In enterprise
level, a NAS array can be used a backup for archiving and recovery. Also, some NAS products can hold
enough disks to compliment RAID for greater data protection.
For anyone systems that must store a large amount of videos/images for several days, NAS is a great
option. Network-Attached Storage consists of both hard drives and keeper. NAS serves files over a
network. Therefore, NAS relieves the server of storage and file serving responsibilities and supplies more
flexibility in data access, due to the independence.
SAN (Storage Area Network):
A Utility area Network (SAN) is a secure high-speed data transfer network through which storage devices
have access to to multiple servers. It's a high-performance storage network that transfers data between
servers and storage devices apart from lan. SAN can often be used where larger regions of high-speed
storage and fast input-output space is required.