I received this from our hosting provider today:
We would like to inform you that we will be migrating all users to new machines starting as of today.
We have introduced a new storage cluster with NVME m2 SSD drives which will greatly increase the stability and mainly the speed with which user accounts read and write data from the “disk space” allocated to them.
Each reseller will be moved independently and each of your will be notified via the ticketing system.
There will be NO downtime, NO IP change, No name servers change. You as a reseller and your end clients do not need to do anything!
There is a slight chance of websites showing a suspended page for a very brief period of time depending on the ISP cache of the visitors of the sites (until the IP propagates from one machine to another which usually happened within 5-10 minutes tops).
P.S. we would like to apologize for the inconvenience this may cause you and your clients but we hope you would understand this is done for the greater good of our clients.