How to resize an existing disk in Portworx

Portworx on Kubernetes
1

To resize an existing disk in Portworx follow the steps below:

  1. Put the PX node where the disk you want to resize is located on maintenance

    pxctl service maintenance -e

  2. Resize the disk

  3. Resize the pool where disk is located, for example if disk is in pool 0 you can run:

    pxctl service pool update 0 --resize

  4. Wait for pool update to complete and then remove PX from maintenance:

    pxctl service maintenance -x

Please note that if pool has more than one disk you need to resize all of them to same size, otherwise pool resize will not work.
For example if pool 0 has two disks with 50 GB each, you need to resize both for the same new size, let’s say 100 GB before running the pool update command.

2

Hi Alex…question, in case the PX Cluster provides storage to a K8s Cluster with many pools, are there any issues if every pool has a different size? for example,
pool A, storage disks 200GB
pool b, storage disks 500GB
pool C, storage disks 1500GB

Every pool will handle a different application, so. It would be waste space/money assigning the same size to all storage disks, but I just wanna resolve my doubt.

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@Gerardo_Hernandez for storage disks with same size and type (ssd, nvme, etc.) Portworx will combine them in a single pool. But if you have storage disks with different sizes as you mentioned above then Portworx will create multiple pools. This is not a problem at all, it will depend on your specific scenario.

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