Discontinued ECS Specifications

The specifications listed in this section have been discontinued and are no longer available. You can change the specifications for your ECS to one that is still available.

General Computing S1

**Table 1** S1 ECS specifications
Flavor	vCPUs	Memory (GiB)	Max./Assured Bandwidth	Max. PPS	Virtualization
s1.medium	1	4	Low	Low	Xen
s1.large	2	8	Low	Low	Xen
s1.xlarge	4	16	Medium	Medium	Xen
s1.2xlarge	8	32	Medium	Medium	Xen
s1.4xlarge	16	64	Medium	Medium	Xen
s1.8xlarge	32	128	Medium	Medium	Xen

General Computing-plus C2

**Table 2** C2 ECS specifications
Flavor	vCPUs	Memory (GiB)	Max./Assured Bandwidth	Max. PPS	Virtualization
c2.medium	1	2	Low	Low	Xen
c2.large	2	4	Low	Low	Xen
c2.xlarge	4	8	Medium	Medium	Xen
c2.2xlarge	8	16	Medium	Medium	Xen
c2.4xlarge	16	32	Medium	Medium	Xen
c2.8xlarge	32	64	Medium	Medium	Xen

General Computing-plus C1

**Table 3** C1 ECS specifications
Flavor	vCPUs	Memory (GiB)	Max./Assured Bandwidth	Max. PPS	Virtualization
c1.medium	1	1	Low	Low	Xen
c1.large	2	2	Low	Low	Xen
c1.xlarge	4	4	Medium	Medium	Xen
c1.2xlarge	8	8	Medium	Medium	Xen
c1.4xlarge	16	16	Medium	Medium	Xen
c1.8xlarge	32	32	Medium	Medium	Xen

Memory-optimized M1

**Table 4** M1 ECS specifications
Flavor	vCPUs	Memory (GiB)	Max./Assured Bandwidth	Max. PPS	Virtualization
m1.medium	1	8	Low	Low	Xen
m1.large	2	16	Low	Low	Xen
m1.xlarge	4	32	Medium	Medium	Xen
m1.2xlarge	8	64	Medium	Medium	Xen
m1.4xlarge	16	128	Medium	Medium	Xen

Large-Memory Et2

**Table 5** Et2 ECS specifications
Flavor	vCPUs	Memory (GiB)	Max./Assured Bandwidth	Max. PPS	Virtualization
et2.2xlarge.16	8	128	Medium	Medium	Xen
et2.4xlarge.14	18	256	Medium	Medium	Xen
et2.8xlarge.14	36	512	Medium	Medium	Xen

Large-Memory E2

**Table 6** E2 ECS specifications
Flavor	vCPUs	Memory (GiB)	Max./Assured Bandwidth	Max. PPS	Virtualization
e2.3xlarge	12	256	Medium	Medium	Xen
e2.4xlarge	18	445	Medium	Medium	Xen
e2.9xlarge	36	890	Medium	Medium	Xen

Large-Memory E1

**Table 7** E1 ECS specifications
Flavor	vCPUs	Memory (GiB)	Max./Assured Bandwidth	Max. PPS	Virtualization
e1.4xlarge	16	470	Medium	Medium	Xen
e1.8xlarge	32	940	Medium	Medium	Xen

Disk-intensive D1

**Table 8** D1 ECS specifications
Flavor	vCPUs	Memory (GiB)	Max./Assured Bandwidth	Max. PPS	Local Disks (GiB)	Virtualization
d1.xlarge	4	32	Medium	Medium	3 × 1675	Xen
d1.2xlarge	8	64	Medium	Medium	6 × 1675	Xen
d1.4xlarge	16	128	Medium	Medium	12 × 1675	Xen
d1.9xlarge	36	256	Medium	Medium	24 × 1675	Xen

Notes on Using D1 ECSs

Do not support NIC hot swapping.

The primary and extension NICs of a D1 ECS are used in scenarios shown in Table 9.

**Table 9** Application scenarios of the NICs of a D1 ECS
NIC Type	Scenarios	Remarks
Primary NIC	Vertical layer 3 communication	-
Extension NIC	Horizontal layer 2 communication	To improve network performance, you can set the MTU of an extension NIC to 8888.

D1 ECSs do not support specifications modification.
D1 ECSs do not support OS reinstallation or change.
D1 ECSs support the following OSs:
- CentOS 7.2 64bit
- CentOS 7.3 64bit
- CentOS 6.8 64bit
- SUSE Enterprise Linux Server 11 SP3 64bit
- SUSE Enterprise Linux Server 11 SP4 64bit
- SUSE Enterprise Linux Server 12 SP1 64bit
- SUSE Enterprise Linux Server 12 SP2 64bit
- Red Hat Enterprise Linux 6.8 64bit
- Red Hat Enterprise Linux 7.3 64bit
D1 ECSs can use both local disks and EVS disks to store data. Note the following when using these two types of disks to store data:
- Only an EVS disk can be used as the system disk of a D1 ECS.
- Both EVS disks and local disks can be used as data disks of a D1 ECS.
- A D1 ECS can be attached with up to 60 disks (including local disks). For details about constraints, see Can I Attach Multiple Disks to an ECS?
  
  The maximum number of disks attached to an existing D1 ECS remains unchanged.
The basic resources, including vCPUs, memory, and image of a stopped D1 ECS are still billed. To stop the ECS from being billed, delete it and its associated resources.

High-Performance Computing H1

**Table 10** H1 ECS specifications
Flavor	vCPUs	Memory (GiB)	Max./Assured Bandwidth	Max. PPS	Virtualization
h1.xlarge.4	4	16	Medium	Medium	Xen
h1.2xlarge.4	8	32	Medium	Medium	Xen
h1.4xlarge.4	16	64	Medium	Medium	Xen
h1.8xlarge.4	32	128	Medium	Medium	Xen

Notes on Using H1 ECSs

Do not support NIC hot swapping.
Support specifications modification only if the source and target ECSs are of the same type.
Support the following OSs:
- CentOS 6.8 64bit
- CentOS 7.2 64bit
- CentOS 7.3 64bit
- Windows Server 2008
- Windows Server 2012
- Windows Server 2016
- SUSE Enterprise Linux Server 11 SP3 64bit
- SUSE Enterprise Linux Server 11 SP4 64bit
- SUSE Enterprise Linux Server 12 SP1 64bit
- SUSE Enterprise Linux Server 12 SP2 64bit
- Red Hat Enterprise Linux 6.8 64bit
- Red Hat Enterprise Linux 7.3 64bit

The primary and extension NICs of an H1 ECS have specified application scenarios. For details, see Table 11.

**Table 11** Application scenarios of the NICs of an H1 ECS
NIC Type	Applicable Scenario	Description
Primary NIC	Vertical layer 3 communication	-
Extension NIC	Horizontal layer 2 communication	To improve network performance, you can set the MTU of an extension NIC to 8888.

Graphics-accelerated G1

**Table 12** G1 ECS specifications
Flavor	vCPUs	Memory (GiB)	Max./Assured Bandwidth	Max. PPS	GPU	GPU Memory (GiB)	Virtualization
g1.xlarge	4	8	Medium	Medium	1×M60-1Q	1	Xen
g1.xlarge.4	4	16	Medium	Medium	1×M60-1Q	1	Xen
g1.2xlarge	8	16	Medium	Medium	1×M60-2Q	2	Xen
g1.2xlarge.8	8	64	Medium	Medium	Passthrough	8	Xen
g1.4xlarge	16	32	Medium	Medium	1×M60-4Q	4	Xen