Alternatives · checked 19 October 2026

Amoeba alternatives: block storage tools compared

Weighing Amoeba against other ways to reduce what Azure managed disks and Amazon EBS cost? Here is each option, what it does and how it acts, from each company’s own pages.

How to choose

Four questions that separate these tools faster than any feature list.

1

Does it shrink, or only grow?

Many tools only add space. Ask whether it also gives space back, and how.

2

Is there downtime, or a reboot?

Some need a reboot to start, or a restart to resize. Ask when, and for how long.

3

Which disks and clouds?

Azure managed disks, Amazon EBS, Kubernetes volumes or VM disks: check it covers yours.

4

What runs on your machines?

An agent, a filesystem or a storage layer, and what it can see and send.

The options

The tools you are likely to meet, what each does, and how it acts.

  1. Amoeba by ZoorikZoorikRightsizes block storage on Azure managed disks and Amazon EBS, autonomously, without any downtime.Acts on its ownAzureAWS
  2. Lucidity Disk AutoScaler (with Lumen) (opens in a new tab)Lucidity (independent; no acquisition found as of 19 Oct 2026)Agent-based autoscaler that grows and shrinks live cloud disks; Lumen finds idle and mis-tiered disks agentlessly.Acts on its ownAzureAWS
  3. Datafy EBS AutoScaler (and EBS Sensor) (opens in a new tab)Datafy Inc. (independent; no acquisition found as of 19 Oct 2026)Grows and shrinks Amazon EBS volumes on EC2 and EKS automatically; free read-only Sensor reports usage.Acts on its ownAWS
  4. Zesty Disk (opens in a new tab)Zesty (independent; bought Qubex in Nov 2024, per Zesty's own Kompass launch release)Builds an EC2 filesystem from several EBS volumes, adding and removing volumes to grow or shrink capacity.Acts on its ownAWSCompare with Amoeba
  5. Zesty PV autoscaling (opens in a new tab)Zesty (independent)Extends and shrinks Kubernetes persistent volumes on Amazon EKS automatically, using the EBS CSI driver.Acts on its ownAWS
  6. Sedai (Amazon EBS and Azure Managed Disks optimization) (opens in a new tab)Sedai Inc. (independent)Selects EBS volume types and Azure disk performance tiers from usage data, and flags unattached disks for cleanup.Acts and recommendsAzureAWS
  7. Amazon EBS Elastic Volumes (opens in a new tab)Amazon Web ServicesAmazon EBS feature that increases a volume's size or changes its type, IOPS and throughput; size cannot decrease.Acts on its ownAWS
  8. AWS Compute Optimizer (EBS recommendations and automation rules) (opens in a new tab)Amazon Web ServicesRecommends EBS type, size and performance; automation rules upgrade older volume types and snapshot and delete unattached volumes.Acts and recommendsAWS
  9. Azure managed disks (native options: live expand, performance tiers, Premium SSD v2, Elastic SAN) (opens in a new tab)MicrosoftNative options: grow data disks live, change Premium SSD performance tiers, tune Premium SSD v2; no shrink.Acts on its ownAzure
  10. Azure Advisor (disk cost recommendations) (opens in a new tab)MicrosoftDisk cost recommendations: review unattached disks, move busy Standard HDDs to capped Standard SSD, consider disk reservations.RecommendsAzure
  11. NetApp Cloud Volumes ONTAP (opens in a new tab)NetAppSoftware-only storage appliance running ONTAP in the cloud; deduplication, compression, thin provisioning and cloning reduce storage costs.Acts on its ownAzureAWS
  12. pvc-autoresizer (opens in a new tab)open source (TopoLVM project, Apache-2.0)Kubernetes controller that grows PersistentVolumeClaims when free space or inodes run low; grow only.Acts on its own
  13. Kubernetes VolumeAttributesClass (opens in a new tab)open source (Kubernetes, CNCF)Kubernetes API that changes a live volume's performance class, such as IOPS, throughput or type; not size.Acts on its ownAzureAWS

Names, owners and descriptions come from each company’s own pages, checked 19 October 2026. Names are their owners’ trademarks. Something changed? Write to founders@zoorik.com.

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