This topic describes the specifications of cloud file gateways, on-premises file gateways,
cloud block gateways, and on-premises block gateways.
File gateways
File gateways are classified into cloud file gateways and on-premises file gateways.
The following tables describe their specifications.
Table 1. Specifications of cloud file gateways
Item |
Basic |
Standard |
Enhanced |
Advanced |
Storage protocol |
NFSv3, NFSv4.0, and SMB |
NFSv3, NFSv4.0, and SMB |
NFSv3, NFSv4.0, and SMB |
NFSv3, NFSv4.0, and SMB |
Maximum number of files (recommended) |
50 million |
100 million |
500 million |
1 billion |
Maximum capacity of shared file systems (recommended) |
128 TB |
256 TB |
512 TB |
1 PB |
Maximum number of shared files |
NFS: 4, SMB: 4 |
NFS: 8, SMB: 8 |
NFS: 15, SMB: 15 |
NFS: 15, SMB: 15 |
Maximum number of agents concurrently connected to a gateway |
NFS: 1,024, SMB: 1,024 |
NFS: 1,024, SMB: 1,024 |
NFS: 1,024, SMB: 1,024 |
NFS: 1,024, SMB: 1,024 |
Maximum bandwidth for OSS-based synchronization |
1 Gbps |
2 Gbps |
5 Gbps |
10 Gbps |
Encrypted transmission to OSS |
Yes |
Yes |
Yes |
Yes |
Cache capacity |
40 GB~1 TB |
40 GB~2 TB |
40 GB~32 TB |
40 GB~32 TB |
Maximum gateway read bandwidth |
1 Gbps |
2.5 Gbps |
5 Gbps |
10 Gbps |
Maximum gateway write bandwidth |
1 Gbps |
2 Gbps |
3 Gbps |
5 Gbps |
Table 2. Specifications of on-premises file gateways
Recommended VM specifications |
4 Core/8 GB |
8 Core/16 GB |
16 Core/32 GB |
Storage protocol |
NFSv3, NFSv4.0, and SMB |
NFSv3, NFSv4.0, and SMB |
NFSv3, NFSv4.0, and SMB |
Maximum number of files (recommended) |
50 million |
50 million |
50 million |
Maximum capacity of shared file systems (recommended) |
128 TB |
128 TB |
128 TB |
Maximum number of shared files |
NFS: 2, SMB: 2 |
NFS: 4, SMB: 4 |
NFS: 8, SMB: 8 |
Maximum number of agents concurrently connected to a gateway |
NFS: 1,024, SMB: 1,024 |
NFS: 1,024, SMB: 1,024 |
NFS: 1,024, SMB: 1,024 |
Maximum bandwidth for OSS-based synchronization |
10 Gbps |
10 Gbps |
10 Gbps |
Encrypted transmission to OSS |
Yes |
Yes |
Yes |
Minimum cache capacity |
40 GB |
40 GB |
40 GB |
Image format |
OVA, VHD, and QCOW2 |
OVA, VHD, and QCOW2 |
OVA, VHD, and QCOW2 |
Block gateways
Block gateways are classified into cloud block gateways and on-premises block gateways.
The following tables describe their specifications.
Table 3. Specifications of cloud block gateways
Item |
Basic |
Standard |
Enhanced |
Advanced |
Storage protocol |
iSCSI |
iSCSI |
iSCSI |
iSCSI |
Maximum number of on-premises data volumes |
4 |
8 |
16 |
16 |
Maximum data volume capacity |
256 TB |
256 TB |
256 TB |
256 TB |
Maximum number of agents concurrently connected to a gateway |
Unlimited |
Unlimited |
Unlimited |
Unlimited |
Maximum bandwidth for OSS-based synchronization |
1 Gbps |
2 Gbps |
5 Gbps |
10 Gbps |
Encrypted transmission to OSS |
Yes |
Yes |
Yes |
Yes |
Cache settings |
Pass-through and cache |
Pass-through and cache |
Pass-through and cache |
Pass-through and cache |
Maximum cache capacity |
1 TB |
2 TB |
32 TB |
32 TB |
Maximum gateway read bandwidth |
1 Gbps |
2.5 Gbps |
5 Gbps |
10 Gbps |
Maximum gateway write bandwidth |
1 Gbps |
2 Gbps |
3 Gbps |
5 Gbps |
Table 4. Specifications of on-premises block gateways
Recommended VM specifications |
4 Core/8 GB |
8 Core/16 GB |
16 Core/32 GB |
Storage protocol |
iSCSI |
iSCSI |
iSCSI |
Maximum data volume capacity |
256 TB |
256 TB |
256 TB |
Recommended number of data volumes |
16 |
64 |
128 |
Maximum number of data volumes |
128 |
128 |
128 |
Maximum number of agents concurrently connected to a gateway |
Unlimited |
Unlimited |
Unlimited |
Encrypted transmission to OSS |
Yes |
Yes |
Yes |
Minimum cache capacity |
20 GB |
20 GB |
20 GB |
Image format |
OVA, VHD, and QCOW2 |
OVA, VHD, and QCOW2 |
OVA, VHD, and QCOW2 |