My backup times suddenly doubled
I went from less than 4 hours to over 7. the database grew roughly 200GB from 2.5TB to 2.7TB. There haven't been any material changes and all-flash subsystem isn't having any issues that I am aware of. Any thoughts on where to start? tried all 4 levels of compression. the only change was adding CPUs to the VM and subsequent wizards suggested more threads. Putting it back to same threads as before didn't help. Post-backup copy and mirror also are dreadfully slow while a windows copy of SQB file takes an hour.
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