A green backup job proves the write; only a second instance and CHECKDB prove retrieval

The msdb detail is worth sitting with, because it explains why so many in-house restore drills quietly test nothing. Backup history is written to msdb on the instance that took the backup, and a restore instance's own msdb knows only about backups that instance made ^[5]. Stand up a scratch box, point it at the file share, ask it which files make up the newest chain for Orders, and it has no record to consult ^[5]. The author's answer is a split: discovery runs remotely against production's msdb over a linked server, while the RESTORE and the CHECKDB run locally on the scratch instance against files it can reach itself ^[6].

That split carries one cost the article names and one it does not. The named cost is plumbing: a linked server, plus backup files reachable from the restore box, and the author says file accessibility is where most people get stuck ^[7]. The unnamed cost is the direction of trust. The machine you deliberately use to mount databases of unknown quality, under temporary names, with a confirmation flag proving it is not production ^[8], is also the machine holding a login that reads production's msdb ^[6]. That is a security review, not a checkbox.

The logging design is where I would spend the first hour. RestoreVerifyLog computes RTOBreached as a persisted column, flagging any run where RestoreSeconds exceeds RTOTargetSeconds ^[11]. RestoreSeconds is nullable ^[13], so a run that dies partway through leaves it NULL, the comparison is UNKNOWN, and the persisted column stores 0 ^[1]. The total failure records no RTO breach. Any alerting built on RTOBreached alone therefore reads clean on exactly the night that matters, and the predicate needs Succeeded = 0 handled as its own condition ^[1].

The same care applies to integrity. RunCheckDB is a per-database switch ^[10] and CheckDBPassed is nullable ^[13], so a row can say Succeeded = 1 and say nothing at all about corruption ^[2]. Silence is not a pass, and whatever dashboard reads this table should render the two differently.

The default RTO target is 1800 seconds ^[10], which is 30 minutes ^[3]. It is per-database and configurable ^[10], which is the point: the value of this harness is not the pass or fail, it is the trend in RestoreSeconds across runs, because that is the number that turns an asserted RTO into a measured one ^[3]. Chains that lengthen and restores that creep past the target are the failure mode the author says hides behind success indicators ^[2].

One caveat on the material. The published text breaks off in step 2 while introducing the full backup lookup, before the differential and log chain discovery and before the file path resolution the author calls the hard part ^[14][7]. Treat it as a design to copy on SQL Server 2016 or later ^[4], not a script to paste.