roachtest: cluster_creation failed

roachtest.cluster_creation [failed](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_RoachtestNightlyAwsBazel/21003013?buildTab=log) with [artifacts](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_RoachtestNightlyAwsBazel/21003013?buildTab=artifacts#/admission-control/disk-bandwidth-limiter) on release-26.1.0-rc @ [6c9b2f778bd29895383d493a2fa4490323499ecf](https://github.com/cockroachdb/cockroach/commits/6c9b2f778bd29895383d493a2fa4490323499ecf):

```
test admission-control/disk-bandwidth-limiter failed: (test_runner.go:990).func4: in provider: aws: failed to run: aws ec2 run-instances --associate-public-ip-address --count 1 --instance-type m7gd.2xlarge --image-id ami-05983a09f7dc1c18f --key-name teamcity-runner-5qESsjQxtQmcWGQqsm_C5Gj-xAE= --region us-east-2 --security-group-ids sg-04d72b57e29d671f1 --subnet-id subnet-0258dc9d1b6473d84 --tag-specifications ResourceType=instance,Tags=[{Key=usage,Value=roachtest},{Key=roachtest-branch,Value=release-26-1-0-rc},{Key=Cluster,Value=teamcity-21003013-1768979510-10-n2cpu8},{Key=spot,Value=true},{Key=roachprod,Value=true},{Key=cluster,Value=teamcity-21003013-1768979510-10-n2cpu8},{Key=lifetime,Value=12h0m0s},{Key=arch,Value=arm64},{Key=created,Value=2026-01-21T07:21:15Z},{Key=Name,Value=teamcity-21003013-1768979510-10-n2cpu8-0001}] ResourceType=volume,Tags=[{Key=usage,Value=roachtest},{Key=roachtest-branch,Value=release-26-1-0-rc},{Key=Cluster,Value=teamcity-21003013-1768979510-10-n2cpu8},{Key=spot,Value=true},{Key=roachprod,Value=true},{Key=cluster,Value=teamcity-21003013-1768979510-10-n2cpu8},{Key=lifetime,Value=12h0m0s},{Key=arch,Value=arm64},{Key=created,Value=2026-01-21T07:21:15Z},{Key=Name,Value=teamcity-21003013-1768979510-10-n2cpu8-0001}] --user-data file:///tmp/aws-startup-script2015424409 --iam-instance-profile Name=roachprod-testing --block-device-mapping file:///tmp/aws-block-device-mapping516732657 --instance-market-options MarketType=spot,SpotOptions={SpotInstanceType=one-time,InstanceInterruptionBehavior=terminate} --output json: stderr:
An error occurred (MaxIOPSLimitExceeded) when calling the RunInstances operation: You have exceeded your maximum io2 IOPS limit of 100000 IOPS in this region. Please contact AWS Support to request an Elastic Block Store service limit increase.: exit status 254 [owner=test-eng]
```

Parameters:
- MetamorphicFilesystem=ext4
- MetamorphicVolumeType=io2
- cloud=aws
- coverageBuild=false
- cpu=8
- diskCount=0
- runtimeAssertionsBuild=false
Help

See: [roachtest README](https://github.com/cockroachdb/cockroach/blob/master/pkg/cmd/roachtest/README.md)

See: [How To Investigate \(internal\)](https://cockroachlabs.atlassian.net/l/c/SSSBr8c7)

Same failure on other branches

- #160357 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-24.3]
- #160356 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.2]
- #160150 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-24.3.25-rc]
- #160149 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.4.3-rc]
- #160147 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.2.11-rc]
- #160146 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.3.7-rc]
- #159347 roachtest: cluster_creation failed [O-roachtest O-robot O-rsg T-testeng X-infra-flake branch-master]
- #159237 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-26.1]
- #159040 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.3]
- #159039 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.3]

/cc @cockroachdb/test-eng

[This test on roachdash](https://roachdash.crdb.dev/?filter=status:open%20t:.*cluster_creation.*&sort=title+created&display=lastcommented+project) | [Improve this report!](https://github.com/cockroachdb/cockroach/tree/master/pkg/cmd/bazci/githubpost/issues)

Jira issue: CRDB-58898