CPU

Max vCPUs per VM

1. The maximum number vCPUs of a VM cannot be greater than the number of logical CPUs of the node.

2. Max vCPUs per Windows/Linux VM: 192 (actual value), 512 (theoretical value)

3. Max vCPUs per delivered server: 96

Memory

Max memory per VM

1. 2 TB (255 GB for Arm VMs)

2. Cannot be greater than the physical memory size of the node.

Disk

Max disks per VM

64

Max capacity per virtual disk

Thinly provisioned: 63 TB

Dynamically provisioned: 16 TB

Pre-allocated: 16 TB

NIC

Max NICs per VM

10

USB Device

Max USB devices per VM

12

Graphics Card

Max graphics cards per VM

8

Snapshot

Max internal disk based snapshots per VM

7

Max external disk based snapshots per VM

32

Max storage based snapshots per VM

128

Max VMs per consistent snapshot group

64

Max snapshots per consistency group

64*128 (i.e., 8192)

Max VM memory per memory snapshot

256 GB (Arm)

2 TB (x86/c86)

Migration

Max VMs to migrate within a cluster at a time

50

Max VMs to migrate from a node at a time

Default: 2

Value range: 1-10

Max VMs to migrate from a datastore at a time

Default: 1

Value range: 1-10

Max VMs to hot-migrate across clusters at a time

1

Max VMs to migrate from VMware vCenter to HCI at a time

Up to 10 VMs can be migrated from a node at a time.

Backup

Cloning

Backup schedule

Backup policy: Weekly backup (Monday to Sunday, 00:00 to 23:00 on the hour), Daily backup (00:00 to 23:00 on the hour), Hourly backup (Every 1 hour, 2 hours, 3 hours, 4 hours, 6 hours, 8 hours, or 12 hours)

CDP policy: Back up every 1 hour, 2 hours, 4 hours, 8 hours, 12 hours, or 24 hours

IO activity log interval: 1 second or 5 seconds

Max concurrent backup tasks

Max concurrent regular backup tasks per node: 2

Max concurrent CDP backup tasks per node: 2

Concurrent backup tasks per datastore: 4 (default), 16 (max)

Concurrent backup copy tasks per datastore: 4 (default), 16 (max)

Concurrent archiving tasks per datastore: 2 (default), 16 (max)

Concurrent data fetching tasks per node: 2 (default), 10 (max)

Concurrent merging tasks per datastore: 2 (default), 16 (max)

Concurrent backup check tasks per datastore: 2 (default), 16 (max)

Max backup speed (MB/s)

Backup speed limit: 80 (default), 300 (max)

Data fetching speed limit per VM: 50 (default), 300 (max)

Merging speed limit: 50 (default), 256 (max). This limit can be disabled.

Backup health check speed limit: 40 (default), 300 (max)

Max concurrent cloning tasks

Full cloning tasks: 2

Instant full cloning tasks: 20

Linked cloning tasks: 20

Max clones per task

100

Startup

Max concurrent startup tasks

By default, a node supports up to 10 concurrent VM startup tasks.

For HCI VMs with virtual storage licenses activated, up to 13 concurrent VM startup tasks are supported on a node.

For VDI VMs, up to 30 concurrent VM startup tasks are supported on a node.

VM Group

Max group levels

5

VM Tag

Max VM tags

4096