This topic describes the instance types and families that support instance type changes. If your current instance type does not meet your business needs, check whether the instance type can be changed. If yes, choose a method to change the instance type.

Impact of instance type changes

The impact of an instance type change varies depending on the network type of the instance.
  • Classic network-type instances:
    • For retired instance types, when a non-I/O optimized instance is upgraded to an I/O optimized instance, instance information including the private IP address, disk device names, and software authorization codes will be changed. For Linux instances, the device names of basic disks (cloud) will be identified as xvda or xvdb, and the device names of ultra disks (cloud_efficiency) and standard SSDs (cloud_ssd) will be identified as vda or vdb.
    • If the instance belongs to an available instance family, the private IP address of the instance will be changed.
  • VPC-type instances:

    For retired instance types, when a non-I/O optimized instance is upgraded to an I/O optimized instance, the software authorization codes and the disk device names of the instance will be changed. For Linux instances, the device names of basic disks (cloud) will be identified as xvda or xvdb, and the device names of ultra disks (cloud_efficiency) and standard SSDs (cloud_ssd) will be identified as vda or vdb.

Instance families that do not support instance type changes

The following instance families do not support instance type changes between different families or within the same family:
  • Big data instance families: d2c, d2s, d1, and d1ne
  • Instance families with local SSDs: i1, i2, i2g, i2ne, and i2gne
  • GPU-accelerated compute optimized instance families: vgn5i, gn5, and gn6i
  • FPGA-accelerated compute optimized instance families: f1 and f3
  • ECS Bare Metal Instance families: ebmgn6e, ebmgn6v, ebmgn6i, ebmc6, ebmg6, ebmr6, ebmhfc6, ebmhfg6, ebmhfr6, ebmc5s, ebmg5s, ebmr5s, ebmhfg5, ebmc4, and ebmg5
  • Super Computing Cluster (SCC) instance families: scchfc6, scchfg6, scchfr6, sccg5, scch5, and sccgn6

Instance families that support instance type changes

The following tables list instance families that support instance type changes. The compatible instance families apply to both subscription and pay-as-you-go instances. For more information about how to change instance types, see Overview of instance upgrade and downgrade.
Note Some instance types may not be available in all zones. Before you change the instance type of an instance, check whether the compatible instance type or instance family is available in the current zone.
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 (type)
g6, c6, and r6
  • g6, c6, and r6
  • hfc7, hfg7, and hfr7
  • g6e, c6e, and r6e
  • re6, hfc6, hfg6, and hfr6
  • t6 and s6
Note
  • To upgrade an instance that belongs to the g6, c6, or r6 instance family to an instance type that belongs to an enhanced sixth-generation instance family such as g6e, c6e, or r6e, or to a seventh-generation instance family such as hfc7, hfg7, or hfr7, submit a ticket. After the upgrade is complete, you will not be able to downgrade the instance type of the instance.
  • Instances of the enhanced sixth-generation instance families such as g6e, c6e, and r6e, and instances of the seventh-generation instance families such as hfc7, hfg7, and hfr7 support only enhanced SSDs (ESSDs). If your instance is attached with disks of other categories, the disks will be replaced with ESSDs and the data on the disks must be manually migrated to the ESSDs when you upgrade the instance to an instance type that belongs to an enhanced sixth-generation instance family or an seventh-generation instance family. For information about the pricing of ESSDs, see ECS pricing.
g6a, c6a, and r6a g6a, c6a, and r6a
g6t and c6t g6t and c6t
g6e, c6e, and r6e
  • g6e, c6e, and r6e
  • ebmg6e, ebmc6e, and ebmr6e
  • hfc7, hfg7, and hfr7
Note To upgrade an instance that belongs to the g6e, c6e, or r6e instance family to an instance type that belongs to a seventh-generation instance family such as hfc7, hfg7, or hfr7, submit a ticket. After the upgrade is complete, you will not be able to downgrade the instance type of the instance.
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
  • sn1ne, sn2ne, se1ne, c4, cm4, ce4, hfc5, hfg5, re4, t5, n4, mn4, xn4, and e4
Note
  • To upgrade an instance that belongs to a basic fifth-generation instance family such as g5, c5, r5, or ic5 to an instance type that belongs to an enhanced sixth-generation instance family such as g6e, c6e, or r6e, submit a ticket. After the upgrade is complete, you will not be able to downgrade the instance type of the instance.
  • Instances of the enhanced sixth-generation instance families such as g6e, c6e, and r6e support only ESSDs. If your instance is attached with disks of other categories, the disks will be replaced with ESSDs and the data on the disks must be manually migrated to the ESSDs when you upgrade the instance to an instance type that belongs to an enhanced sixth-generation instance family. For information about the pricing of ESSDs, see ECS pricing.
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 the instance types of instances between 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 the instance types of instances between ecs.ebmre6-6t.52xlarge, ecs.re6.26xlarge, ecs.re4.40xlarge, and ecs.re4e.40xlarge.
hfc7, hfg7, and hfr7 hfc7, hfg7, and hfr7
hfc6, hfg6, and hfr6
  • hfc6, hfg6, and hfr6
  • hfc7, hfg7, and hfr7
  • g6, c6, r6, and re6
  • t6 and s6
Note
  • To upgrade an instance that belongs to the six-generation instance families such as hfc6, hfg6, or hfr6 to an instance type that belongs to a seventh-generation instance family such as hfc7, hfg7, or hfr7, submit a ticket. After the upgrade is complete, you will not be able to downgrade the instance type of the instance.
  • Instances of the seventh-generation instance families such as hfc7, hfg7, and hfr7 support only ESSDs. If your instance is attached with disks of other categories, the disks will be replaced with ESSDs and the data on the disks must be manually migrated to the ESSDs when you upgrade the instance to an instance type that belongs to a seventh-generation instance family. For information about the pricing of ESSDs, see ECS pricing.
hfc5 and hfg5
  • hfc5 and hfg5
  • sn1ne, sn2ne, se1ne, c4, cm4, ce4, g5, r5, c5, ic5, re4, t5, n4, mn4, xn4, and e4
gn4 gn4
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