In the Block level storage, a block is a collection of bytes or bits having certain size limitations in the computing world. Data which is induced into the blocks is called as Blocked data and the process of inducing the data into the blocks is known as blocking.

1. The Storage War of Blocks and Files
In the Block level storage, a block is a collection of bytes or bits having certain size limitations in
the computing world. Data which is induced into the blocks is called as Blocked data and the
process of inducing the data into the blocks is known as blocking. In this block environment,
raw blocks are created and each block is made to act as an individual hard drive, which are
controlled by the server based operating system. The Blocked data is read as a whole and will
be facilitating its handling in the data stream by the receiving end computer program. The block
level storage is basically used in Storage Area Networks or SAN.
In File Level Storage, the storage medium is configured with a network file system protocol and
the files will be stored and accessed directly from the system. In other words, it is storage on a
network, which can provide data access to heterogeneous clients.
Why is Storage Technology important
Block Level Storage vs. File Level Storage
File level storage- a File level storage is easy to implement and is simple to use.
• The system which is storing and accessing the files can view the files and folders and
also owns full authority over them.
• This is an inexpensive form of storage, when compared to the block level storage
system.
• Network storage implements or runs on the file level storage platform.
• Data is written and read into files, which are of variable size and are packed with an
overhead, in order to split the data and store it in the blocks.
• This file system has an ext3 file system.
• NFS, HTTP, FTP, CIFS are the protocols which are supported by the file level storage.
• Bulk file storage can be achieved through the File storage and it is generally used to
interact with the corporate directories and will have a complete control access.
Block Level Storage- With regards to performance levels, a block level system is much better
than the file level storage.
• In this storage, the SCSI commands are transmitted in between the target and the
initiator.
• iSCSI and FCOE protocols are utilized by the block level file system.
• This level storage is reliable and is customizable and so is pretty expensive.

2. • Managing of storage security, monitoring the communication infrastructure and
performance assurance is complex in Block level storage as it stored data blocks on
top of one another.
• Each storage volume can be treated as an independent drive and can be controlled
by an external server Operating system.
• According to the application requirements, each storage volume can be formatted
with a file system requirement.
• Block level storage is usually employed in Storage Area Networks.
• Reliability factor and data transfer facilities are always to the fullest in the block level
storage.
• Special applications like databases, Virtual Machine file systems can also store files
in the block storage.
• External boot up of systems can be supported by them and deployment of server
virtualization can be achieved.
For further information visit ISCSI