Optional[customOptional[unknownOptionalsizeSize of the disk. Only one size unit can be specified. The size must be within the limits for the selected disk type. For current limits, see https://docs.nebius.com/compute/storage/types#disks-types-comparison
The Shared Filesystem type determines its limits and performance characteristics. For details, see https://docs.nebius.com/compute/storage/types#filesystems-types
Block size in bytes. The block size must be a power of two between 4096 bytes (4 KiB) and 131072 bytes (128 KiB). The default value is 4096 bytes (4 KiB).