Create an empty disk with a large block

Disks consist of blocks. By default, the block size of all created disks is 4 KB, but that's not enough for disks larger than 8 TB. You can set the block size when creating an empty disk. You can't change the block size after the disk is created.

The maximum disk size depends on the chosen block size.

Block size	Maximum disk size
4 KB	8 TB
8 KB	16 TB
16 KB	32 TB
32 KB	64 TB
64 KB	128 TB
128 KB	256 TB

CLI

The folder specified in the CLI profile is used by default. You can specify a different folder using the --folder-name or --folder-id parameter.

See the description of the CLI's create disk commands:
```
yc compute disk create --help
```
Create a disk in the default folder:
```
yc compute disk create \
    --name big-disk \
    --block_size 8K \
    --size 40G \
    --description "my 8k blocksize disk via yc"
```
This command will create a 40 GB disk with an 8 KB block size, named big-disk, and described as my 8k blocksize disk via yc.
- Length — from 3 to 63 characters.
- The name may contain lowercase Latin letters, numbers, and hyphens.
- The first character must be a letter. The last character can't be a hyphen.

Get a list of disks in the default folder:

yc compute disk list

Result:

+----------------------+--------------+-------------+---------------+--------+----------------------+-------------------------+
|          ID          |     NAME     |    SIZE     |     ZONE      | STATUS |     INSTANCE IDS     |       DESCRIPTION       |
+----------------------+--------------+-------------+---------------+--------+----------------------+-------------------------+
| a7lqgbt0bb9s40tifuhc | first-disk   | 20401094656 | ru-central1-a | READY  | a7lcvu28njbhnkcteb5n |                         |
| a7lv5j5hm1p1hppprga7 | second-disk  | 21474836480 | ru-central1-a | READY  |                      |                         |
+----------------------+--------------+-------------+---------------+--------+----------------------+-------------------------+

Get the same list with more details in YAML format:

yc compute disk list --format yaml

Result:

- id: fhmm0br99mig46rc0em0
  folder_id: b1gb9jeqoiordtmv1lbo
  created_at: "2021-01-11T09:35:05Z"
  name: big-disk
  description: 8k blocksize disk
  type_id: network-hdd
  zone_id: ru-central1-a
  size: "42949672960"
  block_size: "8192"
  status: READY
  disk_placement_policy: {}