storage server

A storage server is a type of server that is used to store and manage digital data and acts as a backup server to store backup data. A storage server will be used to store both small and large amounts of data on a shared network. Although the need for storage is obvious, it is not always clear which solution is right for your organization. There are a variety of options available, the most common being Direct Attached Storage (DAS), Network Attached Storage (NAS), and Storage Area Networks (SAN). Choosing the right storage solution can be a personal and individual decision. There is no one right answer for everyone. Instead, it's important to focus on the specific needs and long-term business goals of your organization. Several key criteria to consider include:

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1 - Capacity

2 - Performance

3 - scalability

4 - Availability and reliability

5 - Data protection

6 - Available IT staff and resources

7 - Concern about budgets

DAS (direct attached storage):

Direct Attached Storage (DAS) is a digital storage device that connects directly to a server or PC using a cable, which means that DAS is not part of the storage network. A DAS device can be an internal or external hard drive, like an internal hard drive in the PC. These disk drives can be protected with different RAID levels, depending on the importance and criticality of the data. For the server, a DAS storage is very similar to its own internal drive or an external drive that has been attached.

The main interfaces used for the DAS connection include Advanced Technology Attachment (ATA), Serial Advanced Technology Attachment (SATA), eSATA, Small Computer System Interface (SCSI), Serial Attached SCSI (SAS), and Fiber Channel.

It is worth mentioning that the high access rate due to the absence of a network, the expandability of the storage capacity, data security and fault tolerance are some of the advantages of DAS. However, the main benefits of DAS include low cost and simplicity. Since you don't need network storage system components like routers, switches, and proper cabling and connections. The downside of DAS is that it is not accessible to multiple user groups and only one user is allowed at a time.

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