Server 2025 - high CPU and RAM

[Cortec IT Dan]

For some reason I cannot reply with quotes.

pybfr - I will start considering it now, cheers.
benm2024 - Yeah that's the only reason I haven't done this already. Can I ask, what size volumes and how much RAM you have? Also, you still have certain regkeys set?

Guess I will try to wait for others feedback but this update has made it worse. Server hangs, you reboot and now all RAM is used immediately, rather than building up after restore point deletion.

[m.novelli]

My customers are using Dell Servers (various models like T360 / R550 / R7515) with ReFS and so far they didn't hit the issue

Volume size in the 40 - 100 TB range with good amount of RAM. I perform a full backup every weekend, not forever incremental, single backup job for every customer, generally 10 - 20 VM per customer

I'm talking about 5 Servers with Windows Server 2025

Marco

[Cortec IT Dan]

Marco - what is a "good amount of RAM", how often do you reckon restore points are being removed and how many at a time?

[m.novelli]

I'm rounding the rule of minimum 1 GB RAM per TB of ReFS: 32 GB RAM for customer with 42 TB usable (8 disks 8 TB RAID6) , 64 GB RAM for 76 TB usable (12 disk 8 TB RAID6)

The restore points are deleted every night, tipically just one restore point since I'm using a single backup job, for about 10 - 20 VM at time. Not really high intensive like others people here

Marco

[jokoenen]

Marco - What is the maximum single files size of the deleted backup job files?
Jo

[m.novelli]

2 TB maximum per single file

I have some customer with 3+ TB single files but their Servers are still on Windows Server 2022

Marco