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Saturday, December 2, 2023

Unable to Restore OCP-V VM from S3 When Using Kasten v6.5

I've upgraded to Kasten v6.5. I was able to back up RedHat OpenShift Virtualization VM using Snapshot and S3. However was not able to restore from S3 using TransformSet which I have created on v6.0.12. You may refer to .

Reported as a bug for a future fix. 

The workaround is to create a transform when doing restoration. [Click on below to view in large mode]

Friday, December 1, 2023

Unable to Restore OCP-V VM from S3 When Using Kasten v6.0.12

In my environment, I have used Kasten version v6.0.12 to back up Redhat Openshift Virtualization Virtual machine. No problem on using snapshot however encounter an error when trying to restore from S3.

After troubleshooting, realized that S3 backup data is a reference to snapshot backup data which has expired/removed. Well, it is not supposed to and reported as a bug for the next release fix.

For a workaround, you need to create a TransformSet. Refer to the below diagram to configure it and apply it when doing a restoration. [Click the image to view in large mode]

Friday, November 24, 2023

Internal - Change Corporate Password and Sync with Macbook

This note is only for my own internal reference only. [Not applicable for public use] 

  1. Change your corporate password using web . 
  2. Login to MacBook using old password
  3. Connect to Cisco VPN using new corporate credential
  4. On the menu bar, click the key icon to login to corporate. Use new credential. It will say password expired in 9 days. Just log out
  5. On the key icon, login again with new corporate credential
  6. A prompt will ask to enter corporate AD pwd 

a) enter AD - new pwd

b) enter Mac - old pwd

  1. Click on Sync, since both pwd is not in sync
  2. After sync, it will prompt with result successful
  3. Lock your Mac
  4. Relogin with new password
  5. If log off, please remember your username
  6. Relogin with you Mac username & new password

Thursday, November 2, 2023

Direct Restore to GCP Test Result

 Here is my lab environment test result on Direct Restore to GCP.

Note: Does not represent the real scenario. Recommend testing on your environment to get the exact result.

The below sharing is just for test purposes

Bandwidth used:

  • Download: 800Mbps
  • Upload: 200 Mbps

a) Restore from on-prem backup target to GCP

Using worker e2-micro

Using worker c2d-highcpu-2

b) Restore from GCP object storage to GCP

Using worker c2d-highcpu-2


  • More faster when backup data resides on GCP object storage
  • Changing to the higher spec of worker does not improve the restore speed

Monday, September 25, 2023

Install Older Version of Kasten

You may come to a situation where your customer is running an older version of Kubernetes. Example v1.22. Then you want to back up the container using Kasten.

When you run preflight check, the result indicates "Unsupported"

When we checked the user guide:,

Minimum version support is v1.24


Kasten version to support v1.22 is Kasten 5.5.9

Command to install particular version

helm install k10 kasten/k10 -n kasten-io --version 5.5.9