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  1. OpenShift Bugs
  2. OCPBUGS-34227

Thin Pool Chunk Size is static and does not allow pool size above 32TiB

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    • Quality / Stability / Reliability
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    • OCPEDGE Sprint 255, OCPEDGE Sprint 256, OCPEDGE Sprint 257
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    • Bug Fix
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      Previously, thin-provisioned volumes in `LVMCluster` custom resource (CR) were limited to a maximum of 32 TiB of storage due to a fixed default 128 KiB chunk size for thin pools. This fix introduces allows users to customize the chunk size based on either a static value or the node where `lvm2` is running.
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      Previously, thin-provisioned volumes in `LVMCluster` custom resource (CR) were limited to a maximum of 32 TiB of storage due to a fixed default 128 KiB chunk size for thin pools. This fix introduces allows users to customize the chunk size based on either a static value or the node where `lvm2` is running.
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      This is an LVMS Bug Report:

      Please create & attach a must-gather as indicated by this Guide to collect LVMS relevant data from the Cluster (linked to the latest version, use older versions of the documentation for older OCP releases as applicable

      Please make sure that you describe your storage configuration in detail. List all devices that you plan to work with for LVMS as well as any relevant machine configuration data to make it easier for an engineer to help out.

      Description of problem:

       The Chunk Size variable in LVMS for the thin pool creation is static at 128KiB and needs to be defaulted to allow for higher storage values

      Version-Release number of selected component (if applicable):

       All Versions with 4.12

      Steps to Reproduce:

       1. Create a LVMCluster with devices totalling over 32TiB

      Actual results:

          Creation fails

      Expected results:

          Creation succeeds

      Additional info:

              rh-ee-jmoller Jakob Moeller (Inactive)
              rh-ee-jmoller Jakob Moeller (Inactive)
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              Rahul Deore Rahul Deore
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                Created:
                Updated:
                Resolved: