This topic describes the instance types and instance 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 with 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 addresses, disk device names, and software license codes are changed. For Linux instances, the device names of basic disks (cloud) are identified as xvd* such as xvda or xvdb, and the device names of ultra disks (cloud_efficiency) and standard SSDs (cloud_ssd) are identified as vd* such as vda or vdb.
    • For instance types that belong to an available instance family, the private IP addresses of instances are changed.
  • VPC-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 disk device names and software license codes are changed. For Linux instances, the device names of basic disks (cloud) are identified as xvd* such as xvda or xvdb, and the device names of ultra disks (cloud_efficiency) and standard SSDs (cloud_ssd) are identified as vd* such 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 instance families or within the same instance family:
  • Big data instance families: d2c, d2s, d1, and d1ne
  • Instance families with local SSDs: i1, i2, i2g, i2ne, i2gne, and i3
  • GPU-accelerated compute optimized instance families: vgn5i and gn5
  • FPGA-accelerated compute optimized instance families: f1 and f3
  • ECS Bare Metal Instance families:
    • ebmgn6e, ebmgn6v, and ebmgn6i
    • ebmg6, ebmg5s, ebmg5, ebmc6, ebmc5s, ebmc4, ebmre6p, ebmr6, and ebmr5s
    • ebmhfg6, ebmhfg5, ebmhfc6, and ebmhfr6
  • Super Computing Cluster (SCC) instance families: scchfg6, scchfc6, scchfr6, sccg5, scch5, and sccgn6

Instance families that support instance type changes

The following tables list 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 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. When you change the instance type of an instance, check whether the instance type or instance family to which you want change 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 (g6e, c6e, or r6e) or to a seventh-generation instance family (hfc7, hfg7, or hfr7), submit a ticket. You will not be able to downgrade the instance type of the instance after the upgrade is complete.
  • Instances that belong to the enhanced sixth-generation instance families (g6e, c6e, and r6e) and the seventh-generation instance families (hfc7, hfg7, and hfr7) support only enhanced SSDs (ESSDs). If an instance has disks of other categories attached, the disks are replaced with ESSDs when you upgrade the instance to an instance type that belongs to a seventh-generation or an enhanced sixth-generation instance family. Data on the disks must be manually migrated to the ESSDs. For information about the pricing of ESSDs, see ECS Pricing.
g6se
  • g6se
  • g6e, c6e, and r6e
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
  • g6se
  • 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 (hfc7, hfg7, or hfr7), submit a ticket. You will not be able to downgrade the instance type of the instance after the upgrade is complete.
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 (g5, c5, r5, or ic5) to an instance type that belongs to an enhanced sixth-generation instance family (g6e, c6e, or r6e), submit a ticket. You will not be able to downgrade the instance type of the instance after the upgrade is complete.
  • Instances that belong to the enhanced sixth-generation instance families (g6e, c6e, and r6e) support only ESSDs. If an instance has disks of other categories attached, the disks are replaced with ESSDs when you upgrade the instance to an instance type that belongs to an enhanced sixth-generation instance family. Data on the disks must be manually migrated to the ESSDs. 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
re6p re6p
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 hfc6, hfg6, or hfr6 instance family to an instance type that belongs to a seventh-generation instance family (hfc7, hfg7, or hfr7), submit a ticket. You will not be able to downgrade the instance type of the instance after the upgrade is complete.
  • Instances that belong to the seventh-generation instance families (hfc7, hfg7, and hfr7) support only ESSDs. If an instance has disks of other categories attached, the disks are replaced with ESSDs when you upgrade the instance to an instance type that belongs to a seventh-generation instance family. Data on the disks must be manually migrated to the ESSDs. 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
gn5i gn5i
gn6i gn6i
vgn6i vgn6i
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