0 votes
in Big Data | Hadoop by

What are the benefits of block transfer?

1 Answer

0 votes
by

A file can be larger than any single disk in the network. There’s nothing that requires the blocks from a file to be stored on the same disk, so they can take advantage of any of the disks in the cluster. Making the unit of abstraction a block rather than a file simplifies the storage subsystem. Blocks provide fault tolerance and availability. To insure against corrupted blocks and disk and machine failure, each block is replicated to a small number of physically separate machines (typically three). If a block becomes unavailable, a copy can be read from another location in a way that is transparent to the client?

Related questions

0 votes
asked Jan 26, 2020 in Big Data | Hadoop by rajeshsharma
+1 vote
asked Jan 11, 2020 in Big Data | Hadoop by rajeshsharma
...