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Increase IOPs along with Volume Size when PVC request size is increased and iopsPerGB is set under storageclass. #1698

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sujithg9 opened this issue Jul 20, 2023 · 7 comments
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@sujithg9
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sujithg9 commented Jul 20, 2023

Feature Request

Description:
When a PVC is resized by updating the request size and the StorageClass has the value "iopsPerGB" set, the volume size is expanded accordingly. However, there is no provision to increase the associated IOPS when the PVC request size is increased. This limits the flexibility and scalability of workloads requiring higher IOPS and increased storage capacity. I know EBS CSI has introduced the annotation-based expansion of IOPS, throughput, and disk-type change. But then if request size is increased and IOPs annotation is added, EBS CSI is going to make two separate volume modification calls to AWS where the second call will hit the 6 hr cool down which is not optimal as both volume size and IOPs have to be expanded at the same time when iopsPerGB is a property under the storage class.

We want the EBS block storage expansion through EBS CSI an atomic operation where we increase both size and IOPs in one go when iopsPerGB is set. So that it won't be done in two separate calls to AWS where we need to wait for 6h cool off period in between.

Proposal:
I would like to propose adding a feature that allows for the expansion of IOPS along with volume size expansion when the PVC request size is increased and the StorageClass has the value "iopsPerGB" set. This enhancement would provide users with a more comprehensive and dynamic storage solution on AWS EBS volumes.

Expected Behavior:
When a user increases the size of a PVC if the StorageClass specifies "iopsPerGB," the AWS EBS CSI driver should automatically adjust the IOPS allocation to maintain the desired IOPS-to-GB ratio, ensuring optimal performance for applications that require higher IOPS.

Additional Context:
Include any additional context or examples that may be relevant to the feature request. This could include use cases, specific workload scenarios, or any related information supporting this feature's need.

/kind feature

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/lifecycle stale

@k8s-ci-robot k8s-ci-robot added the lifecycle/stale Denotes an issue or PR has remained open with no activity and has become stale. label Jan 25, 2024
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The Kubernetes project currently lacks enough active contributors to adequately respond to all issues.

This bot triages un-triaged issues according to the following rules:

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/lifecycle rotten

@k8s-ci-robot k8s-ci-robot added lifecycle/rotten Denotes an issue or PR that has aged beyond stale and will be auto-closed. and removed lifecycle/stale Denotes an issue or PR has remained open with no activity and has become stale. labels Feb 24, 2024
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/remove-lifecycle rotten

@k8s-ci-robot k8s-ci-robot removed the lifecycle/rotten Denotes an issue or PR that has aged beyond stale and will be auto-closed. label Feb 26, 2024
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The Kubernetes project currently lacks enough contributors to adequately respond to all issues.

This bot triages un-triaged issues according to the following rules:

  • After 90d of inactivity, lifecycle/stale is applied
  • After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
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You can:

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Please send feedback to sig-contributor-experience at kubernetes/community.

/lifecycle stale

@k8s-ci-robot k8s-ci-robot added the lifecycle/stale Denotes an issue or PR has remained open with no activity and has become stale. label May 26, 2024
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The Kubernetes project currently lacks enough active contributors to adequately respond to all issues.

This bot triages un-triaged issues according to the following rules:

  • After 90d of inactivity, lifecycle/stale is applied
  • After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
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/lifecycle rotten

@k8s-ci-robot k8s-ci-robot added lifecycle/rotten Denotes an issue or PR that has aged beyond stale and will be auto-closed. and removed lifecycle/stale Denotes an issue or PR has remained open with no activity and has become stale. labels Jun 25, 2024
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/remove-lifecycle rotten

@k8s-ci-robot k8s-ci-robot removed the lifecycle/rotten Denotes an issue or PR that has aged beyond stale and will be auto-closed. label Jul 12, 2024
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The Kubernetes project currently lacks enough contributors to adequately respond to all issues.

This bot triages un-triaged issues according to the following rules:

  • After 90d of inactivity, lifecycle/stale is applied
  • After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
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You can:

  • Mark this issue as fresh with /remove-lifecycle stale
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  • Offer to help out with Issue Triage

Please send feedback to sig-contributor-experience at kubernetes/community.

/lifecycle stale

@k8s-ci-robot k8s-ci-robot added the lifecycle/stale Denotes an issue or PR has remained open with no activity and has become stale. label Oct 10, 2024
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