UPS has been in the rack for years, still working?
Batteries age even unused; periodic load tests are not optional.
Try this first
- 1Note UPS battery age
- 2Schedule a controlled load test out of hours
- 3Swap batteries every 3-5 years
- 4Verify runtime under current load, not specs
When to bring us in
Server reboots during a short power glitch: UPS is dead, replace, don't hope.
See also
- One DC or two DCs for an SMB office?Two is almost always the right answer; one DC is a single point of failure for logon, DNS and GPOs.
- Should I split FSMO roles across two DCs?For a small domain all on one DC is fine; with two DCs splitting is tidier but not required.
- How do I know my AD replication is healthy?Replication errors creep in silently; they only surface when logins or GPOs misbehave.
None of the above fits?
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