A server (not mine) has died due motherboard temperature problems and disk controller problems. Given that the company's IT support should have known better, and so on, the company does have a file system backup of a directory structure that looks like this:
Oracle
├───adminscripts
│ (this looks like old custom scripts)
├───EM
│ └───DBNAME
│ emkey.ora
├───fast_recovery_area
│ └───DBNAME
│ └───ARCHIVELOG
│ ├───2015_06_01
│ ├───2015_06_02
│ ├───....
│ ├───2018_11_03
│ └───2018_11_04
│ O1_MF_1_5091_FXVO24XT_.ARC (~80MB)
│ O1_MF_1_5092_FXWPML1J_.ARC (~85MB)
│ O1_MF_1_5093_FXXTSO2W_.ARC (~40MB)
├───oradata
│ ├───orcl
│ │ CONTROL01.CTL (~10MB)
│ │ REDO01.LOG (~50MB)
│ │ REDO02.LOG (~50MB)
│ │ REDO03.LOG (~50MB)
│ │ SYSAUX01.DBF (~520MB)
│ │ SYSTEM01.DBF (~750MB)
│ │ TEMP01.DBF (~20MB)
│ │ UNDOTBS01.DBF (~46MB)
│ │ USERS01.DBF (~5MB)
│ └───DBNAME
│ ├───CONTROLFILE
│ │ O1_MF_9T04M5YO_.CTL (~10MB)
│ ├───DATAFILE
│ │ O1_MF_SVO_DATA_9T06KN5J_.DBF (~9GB)
│ │ O1_MF_SVO_DATA_9T06LGRN_.DBF (~1.5GB)
│ │ O1_MF_SVO_DATA_9T06LO63_.DBF (~30MB)
│ │ O1_MF_SYSAUX_9T04J8M6_.DBF (~1.8GB)
│ │ O1_MF_SYSTEM_9T04J8JR_.DBF (~1.5GB)
│ │ O1_MF_TEMP_9T04MLQV_.TMP (~600MB)
│ │ O1_MF_TOOLS_9T06LODY_.DBF (~100MB)
│ │ O1_MF_UNDOTBS1_9T04J8N5_.DBF (~500MB)
│ │ O1_MF_USERS_9T04J8O5_.DBF (~5MB)
│ └───ONLINELOG
│ O1_MF_1_9T04MB6F_.LOG (~100MB)
│ O1_MF_2_9T04MC8Y_.LOG (~100MB)
│ O1_MF_3_9T04MDHC_.LOG (~100MB)
└───scripts
(this looks like old custom scripts)
I have to assume that this database backup was done safely, with the database put into backup mode or stopped before the backup was done. The backup is a disk image of a data disk, and doesn't contain other configuration information.
So I need to be able to extract the data from this. How do I do it? I assume that I have to set up an Oracle instance on my computer (64-bit Windows 10 Pro), and then somehow move this data somewhere into the installation and hook it up. I've downloaded the Oracle installer, but is there a particular kind of setup that's going to be best for this?
I know how I'd do it with MySQL, but this is new to me. I've searched for backup / restore procedures for Oracle, but they tend to involve rman.
Best Answer
Here's what I did ... this required a lot of trial and error, but I've got access to the database.
Installed Oracle with it's home on an R: drive. Then opened an administrative command prompt, then:
At this point, I moved the new database's CONTROLFILE, DATAFILE and ONLINELOG folders away from R:\oracle\oradata\SVP and replaced them with the ones from the backup oradata\DBNAME folder (from the question).
The init_svp.ora file looks like this:
I don't know if I've got anything I don't need, and I don't particularly care. I've got access to the data, so I'm all good.
Thanks to those who posted ... mustaccio's comment about making Oracle think it already existed by supplying the control file was helpful, as were several web pages that got me through the "control_files" and "compatible" parameter issues.
EDIT: After you reboot your computer, you may get an Oracle error saying something like:
You'll need to mount your database with these commands (substituting in your details, of course):