Increase chunk_size max to 256 Mb instead of 64 Mb #23446
Description
While working on an azure issue, I found this documentation which says that we can now increase the max block blob to 256mb instead of the default 64mb which has been introduced in #22577
About Block Blobs
Block blobs let you upload large blobs efficiently. Block blobs are comprised of blocks, each of which is identified by a block ID. You create or modify a block blob by writing a set of blocks and committing them by their block IDs. Each block can be a different size, up to a maximum of 100 MB (4 MB for requests using REST versions before 2016-05-31), and a block blob can include up to 50,000 blocks. The maximum size of a block blob is therefore slightly more than 4.75 TB (100 MB X 50,000 blocks). For REST versions before 2016-05-31, the maximum size of a block blob is a little more than 195 GB (4 MB X 50,000 blocks). If you are writing a block blob that is no more than 256 MB (64 MB for requests using REST versions before 2016-05-31) in size, you can upload it in its entirety with a single write operation; see Put Blob.