Indeed - "usable" backups - they are ones you've tested restoring from (recently enough to be assured they still work on the latest version of your system).
I _hope_ they don't have someone saying "we had a backup - it was on a RAID set!".
It would surprise me less to discover the reported migration from Oracle on Windows to Oracle on Linux was still partly done, and they were taking solid reliable useable backups - of the old not-yet-decommissioned windows db servers...
(For the record, I've made both of those mistakes (and more) in my career... Fortunately neither represented weeks of 24x7 remedial work by 100s of people.)
I _hope_ they don't have someone saying "we had a backup - it was on a RAID set!".
It would surprise me less to discover the reported migration from Oracle on Windows to Oracle on Linux was still partly done, and they were taking solid reliable useable backups - of the old not-yet-decommissioned windows db servers...
(For the record, I've made both of those mistakes (and more) in my career... Fortunately neither represented weeks of 24x7 remedial work by 100s of people.)