Support for explicitly specifying the file system type (ext3, ext4, XFS) for block volumes when provisioning PVCs

When provisioning persistent volume claims (PVCs) on the Block Volume service using the CSI plugin, you can now configure block volumes to have one of the following file system types:

• ext3
• ext4 (the default)
• XFS

The ext3 and ext4 file systems are generally considered better-suited for applications that use a single read/write thread and small files. Whereas, the XFS file system is generally considered better-suited for applications that have multiple read/write threads and larger files.

For more information, see Specifying File System Types for Block Volumes.