The ESXi host storage maximums represents the limits for virtual disks, iSCSI physical, NAS, Fibre Channel, FCoE, Common VMFS, VMFS5, and VMFS6.

Table 1. Storage Maximums

Item

Maximum

Virtual Disks

Virtual Disks per Host

2048

iSCSI Physical

LUNs per server

512

Cavium (Qlogic) 1 Gb iSCSI HBA initiator ports per server

4

Cavium (Qlogic) 10 Gb iSCSI HBA initiator ports per server

4

NICs that can be associated or port bound with the software iSCSI stack per server

8

Number of total paths on a server

2048

Number of paths to a LUN (software iSCSI and hardware iSCSI)

8

Cavium (Qlogic) 1 Gb iSCSI HBA targets per adapter port

64

Cavium (Qlogic)10 Gb iSCSI HBA targets per adapter port

128

Software iSCSI targets

256

The sum of static targets (manually assigned IP addresses) and dynamic targets (IP addresses assigned to discovered targets) may not exceed this number.

NAS

NFS mounts per host

256

Fibre Channel

LUNs per host

512

LUN size

64 TB

LUN ID

0 to 16383

Number of paths to a LUN

32

Number of total paths on a server

2048

Number of HBAs of any type

8

HBA ports

16

Targets per HBA

256

FCoE

Software FCoE adapters

4

Common VMFS

Volume size

64 TB

For VMFS3 volumes with 1 MB block size, the maximum volume size is 50 TB.

Volumes per host

512

Hosts per volume

64

Powered on virtual machines per VMFS volume

2048

Concurrent vMotion operations per VMFS volume

128

VMFS3

Raw device mapping size (virtual and physical)

2 TB minus 512 bytes

Block size

8 MB

File size (1 MB block size)

256 GB

File size (2 MB block size)

512 GB

File size (4 MB block size)

1 TB

File size (8 MB block size)

2 TB minus 512 bytes

Files per volume

Approximately 30,720

VMFS5 / VMFS-6

Raw Device Mapping size (virtual compatibility)

62 TB

Raw Device Mapping size (physical compatibility)

64 TB

Block size

1 MB

1MB is the default block size. Upgraded VMFS5 volumes inherit the VMFS3 block size value.

File size

62 TB

Files per volume

Approximately 130,690