how to limit software raid resync speed or change the I/O priority?

Question

I would like to reduce the rate at which rebuilding the raid arrays on my system occurs. For example after I have to manually press reset on the PC, all my mirrored drives require a resync.

Then windows immediately starts resyncing utilizing the full disks capacity making them unusable (very slow) while the process lasts.

That would be OK but a drive with 4TBs takes considerable time to complete this process so I would like this to happen without making the PC unusable. In linux it's possible to set the max i/o rate . Is there something similar on windows 10 x64?

Answer 1

Unfortunately I don't find a way to interfere this resynching process. You may have to wait for it to end on its own.

Recovering a Mirrored Volume
https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-2000-server/cc938519(v=technet.10)

Best Regards，
Ian

Answer 2

@Anonymous Unfortunately that's what I'm doing currently. But the problem is that while my 4TB mirrored volume resyncs my PC is exhibiting the following symptoms making it unsuable for production.

• CPU Spikes of 100%
• Mouse stuttering
• File Explorer opening after 1 minute
• Considerable lag opening applications
• Firefox not responding
• Significant wear and tear to the main SSD because it's used as an intermediate for the resyncing process.

I think this is severe enough causing loss of productivity that's why I was hoping there's a way to adjust it. Sometimes I'm puzzled why windows is less flexible than Linux although it's more user friendly. It's a one-liner on linux and on windows there doesn't seem to be any reference on this.