Our technician has arrived on-site, and we are working to replace hardware. We've tested with a new NVMe but the issues seems to be existed still.
In order to make sure everything will run smoothly and minimize the downtime, we will perform a complete migration to the new nodes.
The current estimated time is ~1.5 hours as we need to rack up new servers at our datacenter and set it up.
Thank you for your patience and understanding.