This topic describes the instance types and instance families that support instance type changes. Before you change the instance type of an Elastic Compute Service (ECS) instance, you must verify whether the instance type can be changed and identify the compatible instance types. If the instance type can be changed, proceed.

Impacts of instance type changes

The impacts of instance type changes vary based on the network types of instances.
  • Instances of the classic network type:
    • For retired instance types, when a non-I/O optimized instance is changed into an I/O optimized instance, instance information (including the private IP addresses, disk device names, and software authorization codes) is changed. On Linux instances, basic disks (cloud) are identified as xvd* such as xvda and xvdb, and ultra disks (cloud_efficiency) and standard SSDs (cloud_ssd) are identified as vd* such as vda and vdb.
    • For instance types of an available instance family, the private IP addresses of instances are changed.
  • Instances of the Virtual Private Cloud (VPC) type:

    For retired instance types, when a non-I/O optimized instance is changed into an I/O optimized instance, instance information (including the disk device names and software authorization codes) is changed. On Linux instances, basic disks (cloud) are identified as xvd* such as xvda and xvdb, and ultra disks (cloud_efficiency) and standard SSDs (cloud_ssd) are identified as vd* such as vda and vdb.

Instance families that do not support instance type changes

The following instance families do not support instance type changes across instance families or within the same instance family:
  • Enterprise-level instance families based on the x86 architecture:
    • Persistent memory-optimized instance families: re6p and re6p-redis
    • Security-enhanced instance families: g7t, c7t, and r7t
    • Big data instance families: d2c, d2s, d1, and d1ne
    • Instance families with local SSDs: i1, i2, i2g, i2ne, i2gne, i3, and i3g
  • Enterprise-level heterogeneous 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:
    • ebmgn7e, ebmgn7i, ebmgn7, ebmgn6ia, ebmgn6e, ebmgn6v, and ebmgn6i
    • ebmg6, ebmg5s, ebmg5, ebmc6me, ebmc6, ebmc5s, ebmc4, ebmre6p, ebmr6, and ebmr5s
    • ebmhfg6, ebmhfg5, ebmhfc6, and ebmhfr6
  • Super Computing Cluster (SCC) instance families:
    • sccgn6e and sccgn6
    • sccg5 and scch5
    • scchfg6, scchfc6, and scchfr6

Instance families that support instance type changes

The following tables describe the instance families that support instance type changes. The instance types of subscription and pay-as-you-go instances can be changed across or within these instance families. For information about how to change instance types, see Overview of instance configuration changes.

Notice The compatible instance types and instance families that are available are affected by factors such as resource availability in each zone. The compatible instance types and instance families available for use are displayed in the ECS console. You can also go to the ECS Instance Types Available for Each Region page to query available instance types.
Table 1. Shared instance families
Original instance family Compatible instance family
t6
  • t6
  • s6
  • g6, c6, r6, hfg6, hfc6, and hfr6
t5
  • t5
  • sn1ne, sn2ne, se1ne, c4, cm4, ce4, hfc5, hfg5, g5, r5, c5, ic5, re4, n4, mn4, xn4, and e4
s6
  • s6
  • t6
  • g6, c6, r6, hfg6, hfc6, and hfr6
n4, mn4, xn4, and e4
  • n4, mn4, xn4, and e4
  • sn1, sn2, se1, n1, n2, e3, sn1ne, sn2ne, se1ne, c4, cm4, ce4, hfc5, hfg5, g5, r5, c5, ic5, re4, and t5
Table 2. Enterprise-level instance families
Original instance family Compatible instance family
g7se, c7se, and r7se g7se, c7se, and r7se
g7a, c7a, and r7a
  • g7a, c7a, and r7a
  • ebmg7a, ebmc7a, and ebmr7a
  • g7, c7, and r7
ebmg7a, ebmc7a, and ebmr7a
  • ebmg7a, ebmc7a, and ebmr7a
  • g7a, c7a, and r7a
g7, c7, and r7
  • g7, c7, and r7
    Note Instances of the g7 instance family can be upgraded to the ebmg7 instance family. Instances of the c7 instance family can be upgraded to the ebmc7 instance family. Instances of the r7 instance family can be upgraded to the ebmr7 instance family. After the instances are upgraded, you cannot downgrade the instance types of the instances.
  • g7a, c7a, and r7a
ebmg7, ebmc7, and ebmr7 ebmg7, ebmc7, and ebmr7
g7ne
  • g7ne
  • g7, c7, and r7
  • hfc7, hfg7, and hfr7
g6, c6, and r6
  • g6, c6, and r6
  • g7, c7, and r7
  • hfg7, hfc7, and hfr7
  • g7a, c7a, and r7a
  • g6e, c6e, and r6e
  • re6, hfg6, hfc6, and hfr6
  • t6 and s6
Note The g6e, c6e, r6e, g7a, c7a, r7a, hfc7, hfg7, hfr7, g7, c7, and r7 instance families support only enhanced SSDs (ESSDs). To upgrade instances of the g6, c6, and r6 instance families to these instance families, submit a ticket. For more information, see Upgrade to instance families that support only ESSDs.
g6a, c6a, and r6a
  • g6a, c6a, and r6a
  • g7, c7, and r7
  • g7a, c7a, and r7a
Note The g7, c7, r7, g7a, c7a, and r7a instance families support only ESSDs. To upgrade instances of the g6a, c6a, and r6a instance families to these instance families, submit a ticket. For more information, see Upgrade to instance families that support only ESSDs.
g6t and c6t g6t and c6t
g6e, c6e, and r6e
  • g6e, c6e, and r6e
  • ebmg6e, ebmc6e, and ebmr6e
  • g7, c7, and r7
  • hfc7, hfg7, and hfr7
  • g7ne
ebmg6a, ebmc6a, and ebmr6a ebmg6a, ebmc6a, and ebmr6a
ebmg6e, ebmc6e, and ebmr6e
  • ebmg6e, ebmc6e, and ebmr6e
  • g6e, c6e, and r6e
g5, g5ne, r5, c5, and ic5
  • g5, g5ne, r5, c5, and ic5
  • g6e, c6e, and r6e
    Note Instances of g5, r5, c5, and ic5 instance families can be upgraded to g6e, c6e, or r6e instance families. The g6e, c6e, and r6e instance families support only ESSDs. To upgrade instances to these instance families, submit a ticket. For more information, see Upgrade to instance families that support only ESSDs.
  • sn1ne, sn2ne, se1ne, c4, cm4, ce4, hfc5, hfg5, re4, t5, n4, mn4, xn4, and e4
sn1ne, sn2ne, and se1ne
  • sn1ne, sn2ne, and se1ne
  • c4, cm4, ce4, hfc5, hfg5, g5, g5ne, r5, c5, ic5, re4, t5, n4, mn4, xn4, and e4
se1
  • se1
  • sn1, sn2, n1, n2, e3, sn1ne, sn2ne, se1ne, c4, cm4, ce4, hfc5, hfg5, g5, r5, c5, ic5, re4, t5, n4, mn4, xn4, and e4
re6
  • re6
  • g6, c6, r6, hfc6, hfg6, hfr6, and re4
Note You can change instance types among ecs.ebmre6-6t.52xlarge, ecs.re6.26xlarge, ecs.re4.40xlarge, and ecs.re4e.40xlarge.
re4
  • re4
  • re6, sn1ne, sn2ne, se1ne, c4, cm4, ce4, hfc5, hfg5, g5, r5, c5, ic5, t5, n4, mn4, xn4, e4, and ecs.se1.14xlarge
Note You can change instance types among ecs.ebmre6-6t.52xlarge, ecs.re6.26xlarge, ecs.re4.40xlarge, and ecs.re4e.40xlarge.
hfc7, hfg7, and hfr7
  • hfc7, hfg7, and hfr7
  • g7, c7, and r7
  • g7ne
hfc6, hfg6, and hfr6
  • hfc6, hfg6, and hfr6
  • hfc7, hfg7, and hfr7
  • g6, c6, r6, and re6
  • t6 and s6
Note The hfc7, hfg7, and hfr7 instance families support only ESSDs. To upgrade instances to these instance families, submit a ticket. For more information, see Upgrade to instance families that support only ESSDs.
hfc5 and hfg5
  • hfc5 and hfg5
  • sn1ne, sn2ne, se1ne, c4, cm4, ce4, g5, r5, c5, ic5, re4, t5, n4, mn4, xn4, and e4
sgn7i-vws sgn7i-vws
vgn7i-vws vgn7i-vws
gn7i gn7i
gn7 gn7
vgn6i vgn6i
gn6i gn6i
gn5i gn5i
gn6e gn6e
gn6v gn6v
t1, s1, s2, s3, m1, m2, c1, and c2
  • t1, s1, s2, s3, m1, m2, c1, and c2
  • sn1, sn2, se1, n1, n2, e3, sn1ne, sn2ne, se1ne, c4, cm4, ce4, hfc5, hfg5, g5, r5, c5, ic5, re4, t5, n4, mn4, xn4, and e4
n1, n2, and e3
  • n1, n2, and e3
  • sn1, sn2, se1, sn1ne, sn2ne, se1ne, c4, cm4, ce4, hfc5, hfg5, g5, r5, c5, ic5, re4, t5, n4, mn4, xn4, and e4
sn1 and sn2
  • sn1 and sn2
  • se1, n1, n2, e3, sn1ne, sn2ne, se1ne, c4, cm4, ce4, hfc5, hfg5, g5, r5, c5, ic5, re4, t5, n4, mn4, xn4, and e4
c4, ce4, and cm4
  • c4, ce4, and cm4
  • sn1ne, sn2ne, se1ne, hfc5, hfg5, g5, r5, c5, ic5, re4, t5, n4, mn4, xn4, and e4

Upgrade to instance families that support only ESSDs

To upgrade an instance from an instance family that supports multiple disk categories to another instance family that supports only ESSDs, perform the following operations:
  1. Before you upgrade the instance, make sure that only ESSDs are attached to the instance. If the instance has disks of other categories attached, you can change the categories of these disks in the ECS console. For more information, see Change the category of a disk.
    Note For information about the pricing of ESSDs, seethe Pricing tab on the Elastic Computer Service product page.
  2. You can submit a ticket to upgrade the instance.
    Note After the instance is upgraded, you cannot downgrade the instance type of the instance.