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  1. OpenShift Request For Enhancement
  2. RFE-1649

Test a supported way to move /var/lib/etcd to a new disk as day 2 task

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    • Feature Request
    • Resolution: Done
    • Normal
    • None
    • None
    • etcd, MCO
    • False
    • False
    • 0
    • 0% 0%
    • Undefined

    Description

      Validate a supported way to move "/var/lib/etcd" to a new disk as day 2 task.

      As lots of issues with OCP are related to slow disks for etcd, a way to move the "/var/lib/etcd" to a faster disk will help in several cases.

      In OCP 4.6, it's possible to configure an additional disk for etcd at installation time in UPI installations. An also it will be included in a future 4.x version for IPI installations. But it's needed a supported way to be able to do the same in clusters already installed.

      There is a KCS to separate "/var/lib/containers", but as this comment, it's only for that directory.

      Te goal is having this supported from OCP 4.5+ (as OCP 4.4 is almost EOF).

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          is incorporated by

          Feature - Capability or a well-defined set of functionality that delivers business value. Features can include additions or changes to existing functionality. Features can easily span multiple teams, and potentially multiple releases. OCPSTRAT-529 Improve disaster recovery test coverage for etcd

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Closed
          is related to

          Bug - A problem that impairs or prevents the functions of the product. OCPBUGS-29657 Mention known issues while moving etcd to a different disk as part of day 2 activity.

          • Normal - To be worked after urgent and high priorities are resolved. This term is chosen when the severity of an issue is relatively close to the level of effort to fix it. The existence of an easily implemented workaround can also lead to this priority level instead of a higher priority.
          • ASSIGNED
          relates to

          Story - Created by Jira Software - do not edit or delete. Issue type for a user story. SPLAT-206 [azure] Create a KB about ultra-disks

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Closed

          Feature - Capability or a well-defined set of functionality that delivers business value. Features can include additions or changes to existing functionality. Features can easily span multiple teams, and potentially multiple releases. OCPPLAN-7575 User should be able to create separate PIOPS volume for etcd

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Closed
          links to

          Web Link KCS 5840061: Mounting separate disk for OpenShift 4 etcd

          Web Link KCS 6973069: Separate /var/lib/etcd to a different device for Red Hat OpenShift Container Platform 4

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              wcabanba@redhat.com William Caban
              oarribas@redhat.com Oscar Arribas Arribas
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                Updated:
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