Which instance types can be changed - Elastic Compute Service

Learn about the supported instance type changes before you change the instance type of your Elastic Compute Service (ECS) instance.

Instance families that support instance type changes

When you change the instance type of an ECS instance, take note of the compatibility between the source and destination instance types or families described in the following tables. You can change ECS instances only from instance types within the source instance families to instance types in corresponding compatible instance families.

Note

You can also call the DescribeResourcesModification operation to query the instance types to which you want change an ECS instance.

Table 1. x86-based Entry-level computing instance families

Source instance family	Compatible instance family
e	g7, c7, r7, g7ne, g7nex, c7nex, hfg7, hfc7, and hfr7 g6, c6, r6, g6e, c6e, r6e, hfg6, hfc6, hfr6, and re6 u1 e t6
t6	g7, c7, r7, hfg7, hfc7, hfr7, and g7ne g6, c6, r6, hfg6, hfc6, hfr6, g6e, c6e, r6e, and re6 t6
t5	g6, c6, r6, hfc6, hfg6, hfr6, g6a, c6a, r6a, and re6 g5, g5ne, r5, c5, ic5, hfc5, and hfg5 t5 and t6
n4, mn4, xn4, and e4	g6, c6, r6, hfc6, hfg6, hfr6, g6a, c6a, r6a, and re6 g5, g5ne, r5, c5, ic5, hfc5, and hfg5 t5 and t6 n1, n2, e3, sn1, and sn2 se1, sn1ne, sn2ne, se1ne, c4, ce4, cm4, re4, n4, mn4, xn4, and e4
t1, s1, s2, s3, m1, m2, c1, and c2	g5, g5ne, r5, c5, ic5, hfc5, and hfg5 t5 n1, n2, e3, sn1, and sn2 se1, sn1ne, sn2ne, se1ne, c4, ce4, cm4, re4, n4, mn4, xn4, and e4
n1, n2, and e3	g5, g5ne, r5, c5, ic5, hfc5, and hfg5 t5 n1, n2, e3, sn1, and sn2 se1, sn1ne, sn2ne, se1ne, c4, ce4, cm4, re4, n4, mn4, xn4, and e4

Table 2. Enterprise-level computing instance families

Source instance family or type	Compatible instance family or type
g9i, c9i, and r9i	g9i, c9i, and r9i
g8i, c8i, and r8i hfg8i, hfc8i, and hfr8i	g9i, c9i, and r9i g8i, c8i, r8i, hfg8i, hfc8i, and hfr8i
g8a, c8a, and r8a g8ae, c8ae, and r8ae	g8a, c8a, and r8a g8ae, c8ae, and r8ae
g8y, c8y, and r8y	g8y, c8y, and r8y
g7se, c7se, and r7se	g8i, c8i, and r8i g7se, c7se, and r7se
g7a, c7a, and r7a	g8a, c8a, r8a, g8ae, c8ae, and r8ae g7a, c7a, r7a, g7, c7, and r7 g6a, c6a, and r6a
ebmg7a, ebmc7a, and ebmr7a	ebmg7a, ebmc7a, and ebmr7a
ebmhfc7, ebmhfg7, and ebmhfr7	ebmhfc7, ebmhfg7, and ebmhfr7
g7, c7, and r7	g9i, c9i, and r9i g8i, c8i, r8i, hfg8i, hfc8i, and hfr8i g7, c7, r7, g7ne, g7nex, c7nex, hfc7, hfg7, and hfr7
ebmg7, ebmc7, and ebmr7	ebmg7, ebmc7, and ebmr7
g7ne hfc7, hfg7, and hfr7 g6e, c6e, and r6e	g8i, c8i, r8i, hfg8i, hfc8i, and hfr8i g7, c7, r7, g7ne, g7nex, c7nex, hfc7, hfg7, and hfr7 g6e, c6e, and r6e
g7nex and c7nex	g8i, c8i, r8i, hfg8i, hfc8i, and hfr8i g7, c7, r7, g7ne, g7nex, c7nex, hfc7, hfg7, and hfr7 Important The ecs.g7nex.32xlarge instance type can be changed only to the ecs.c7nex.32xlarge instance type.
g6r and c6r	g8y, c8y, and r8y g6r and c6r
g6, c6, and r6 hfg6, hfc6, and hfr6	g7, c7, r7, hfg7, hfc7, hfr7, and g7ne g6, c6, r6, hfg6, hfc6, hfr6, g6e, c6e, r6e, and re6 t6
g6a, c6a, and r6a	g7, c7, r7, g7a, c7a, and r7a g6, c6, r6, g6a, c6a, and r6a
g6t	g6t
c6t	c6t
ebmg6a, ebmc6a, and ebmr6a	ebmg6a, ebmc6a, and ebmr6a
g5, g5ne, r5, c5, and ic5	g7, c7, and r7 g6, c6, r6, g6a, c6a, r6a, hfc6, hfg6, hfr6, and re6 g5, g5ne, r5, c5, ic5, hfc5, hfg5, and ebmg5s t5 and t6
hfc5 and hfg5	g7, c7, and r7 g6, c6, r6, g6a, c6a, r6a, hfc6, hfg6, hfr6, and re6 u1 hfc5, hfg5, g5, g5ne, r5, c5, ic5, and t5 e t6
u1	g7, c7, r7, hfg7, hfc7, and hfr7 u1
sn1ne, sn2ne, and se1ne	g7, c7, and r7 g6, c6, r6, g6a, c6a, r6a, hfc6, hfg6, hfr6, and re6 u1 g5, g5ne, r5, c5, ic5, hfc5, and hfg5 e t5 and t6 se1, sn1ne, sn2ne, se1ne, c4, ce4, cm4, re4, n4, mn4, xn4, and e4
se1	g7, c7, and r7 u1 g5, g5ne, r5, c5, ic5, hfc5, and hfg5 t5 n1, n2, e3, sn1, and sn2 se1, sn1ne, sn2ne, se1ne, c4, ce4, cm4, re4, n4, mn4, xn4, and e4
re6	g6, c6, r6, hfc6, hfg6, hfr6, re6, and ebmre6-6t re4 and re4e
re4e	g7, c7, and r7 u1 re6 and ebmre6-6t re4e and re4
re4	g7, c7, and r7 u1 g6, c6, r6, g6a, c6a, r6a, hfg6, hfc6, hfr6, re6, and ebmre6-6t e g5, g5ne, r5, c5, ic5, hfc5, and hfg5 t5 and t6 se1, sn1ne, sn2ne, se1ne, c4, ce4, cm4, re4, n4, mn4, xn4, and e4
gn8v	gn8v
gn8v-tee	gn8v-tee
sgn8ia	sgn8ia
gn8is	gn8is
sgn7i-vws	sgn7i-vws
vgn7i-vws	vgn7i-vws
gn7e	gn7e
gn7s	gn7s
gn7i	gn7i
gn7	gn7
gn6i	gn6i
vgn6i	vgn6i, vgn6i-vws, and sgn7i-vws
vgn6i-vws	vgn6i-vws
gn6e	gn6e
gn6v	gn6v
gn5i	gn5i
gn5	gn5
sn1, sn2, and se1	g7, c7, and r7 u1 g5, g5ne, r5, c5, ic5, hfc5, and hfg5 t5 n1, n2, e3, sn1, and sn2 se1, sn1ne, sn2ne, se1ne, c4, ce4, cm4, re4, n4, mn4, xn4, and e4
c4, ce4, and cm4	g6, c6, r6, g6a, c6a, r6a, hfc6, hfg6, hfr6, and re6 e g5, g5ne, r5, c5, ic5, hfc5, and hfg5 t5 and t6 se1, sn1ne, sn2ne, se1ne, c4, ce4, cm4, re4, n4, mn4, xn4, and e4

Issues and solutions

You may be unable to change ECS instances to specific instance types. In this case, resolve the issues based on the scenario and proceed with the instance type changes.

Reconfigure an ECS instance before you can change it to a specific instance type

If you cannot change an ECS instance to a specific instance type due to one of the following reasons, resolve the issue based on the reason and then change the instance type of the instance.

Reason	Description	Solution
The processor of the destination instance type is incompatible with the operating system of the ECS instance.	Specific ECS instance types have requirements for operating systems. Take note of the following limits: Compatibility of AMD instance types with operating systems Compatibility of Intel instance types with operating systems Operating systems compatible with Yitian processor instances If the operating system of the ECS instance is incompatible with an instance type, you cannot change the instance to the instance type.	For more information, see The operating systems of the images are incompatible with the processors of the instance types.
The Non-Volatile Memory Express (NVMe) driver status of the destination instance type does not match that of the ECS instance.	To change the instance type of an 8th-generation or later ECS instance, the NVMe driver must be installed on the instance. To change the instance type of a 7th-generation or earlier ECS instance to an 8th-generation or later instance type, the NVMe driver must be installed on the instance or the image must support NVMe. Note You can call the DescribeInstanceTypes operation and determine whether an instance type supports NVMe based on the `NvmeSupport` response parameter. You can call the DescribeImages operation and determine whether an image supports NVMe based on the `NvmeSupport` response parameter.	On the Instance page in the ECS console, find the ECS instance whose instance type you want to change and choose > Configure NVMe Driver Status in the Actions column. Click Install to install the NVMe driver. The system automatically changes the NVMe driver status to Installed.
The destination instance type does not support the disk categories of the ECS instance.	Some instance families support only specific disk categories. For example, the g7 general-purpose instance family supports only Enterprise SSDs (ESSDs). If an ECS instance has disks of categories that are not supported by an instance type, you cannot change the instance to the instance type. For example, if an ECS instance has ultra disks attached, you cannot change the instance to an instance type that supports only ESSDs.	When you change the instance type of an ECS instance, you can follow the on-screen instructions to change the disk categories of the instance.

Select a different destination instance type

If you cannot change an ECS instance to a specific instance type due to one of the following reasons, select a different destination instance type.

Reason	Description	Solution
The destination instance type does not exist.	The destination instance type that you select does not exist.	Select a different destination instance type. Note Before you change the instance type of an ECS instance, view Instance families available for purchase.
The destination instance type is retired.	The destination instance type that you select is retired.	Select a different destination instance type. Note Before you change the instance type of an ECS instance, view Instance families available for purchase.
No inventory in the region.	The destination instance type that you select is unavailable in the current region.	Select a different destination instance type. Note You can go to the Instance Types Available for Each Region page to query the available instance types in the current region and zone. You can also call the DescribeResourcesModification operation to query available instance types in a zone.
Only changes between instance types in the same instance family are supported.	You can change the ECS instance only to another instance type in the same instance family as the current instance type of the instance.	The destination instance type must be in the same instance family as the current instance type of the instance. For example, when you change the instance type of a gn7e instance, you can select only instance types in the gn7e instance family.
The destination instance family is incompatible with the source instance family.	If the selected destination instance type is incompatible with the source instance type, the change is not supported.	For more information, see Instance families that support instance type changes. Select a destination instance type from an instance family that is compatible with the source instance family.
The architecture of the destination instance type does not match that of the ECS instance.	If the architecture (Arm or x86) of the selected destination instance type does not match that of the ECS instance, the change is not supported.	The destination instance type must have the same architecture as the ECS instance.
The number of vCPUs or memory size of the destination instance type is out of range.	If the number of vCPUs or memory size of the selected destination instance type does not match that of the ECS instance, the change is not supported. For information about the limits of Windows operating systems on the number of vCPUs and memory size of instances, see Memory Limits for Windows and Windows Server Releases.	The number of vCPUs or memory size of the destination instance type must match that of the ECS instance.
The boot mode of the destination instance type does not match that of the ECS instance.	For example, if the selected destination instance is a security-enhanced instance type that supports only the Unified Extensible Firmware Interface (UEFI) boot mode, the ECS instance must also support the UEFI boot mode. Otherwise, the change is not supported.	The destination instance type must support the same boot mode as the ECS instance.

Instance types that do not support changes

You change ECS instances from the instance types in the following instance families to other instance types.

Category	Instance family
x86-based enterprise-level computing instance families	Persistent memory-optimized instance families: re6p, and re6p-redis Security-enhanced instance families: g7t, c7t, and r7t Big data instance families: d3s, d3c, d2c, d2s, d1, and d1ne Instance families with local SSDs: i1, i2, i2g, i2ne, i2gne, i3, i3g, i4, i4g, i4r, and i4p
Enterprise-level heterogeneous computing instance families	GPU-accelerated compute-optimized instance family: gn5 vGPU-accelerated instance family: vgn5i FPGA-accelerated compute-optimized instance families: f1 and f3
ECS Bare Metal Instance families	ebmgn8v, ebmgn8is, ebmgn7e, ebmgn7i, ebmgn7, ebmgn6ia, ebmgn6e, ebmgn6v, and ebmgn6i ebmg8i, ebmc8i, ebmg8y, ebmc8y, ebmr8y, ebmg6, ebmg5s, ebmg5, ebmc6me, ebmc6, ebmc5s, ebmc4, ebmre6p, ebmre6-6t, ebmr6, and ebmr5s ebmhfg6, ebmhfg5, ebmhfc6, and ebmhfr6
Super Computing Cluster (SCC) instance families	SCC instance families: sccgn6e and sccgn6 sccg5 and scch5 scchfg6, scchfc6, and scchfr6