Change number of data file

I need to copy the data files to a SAN and want to change the number of data files form 4 to 1. This is only a small database (22Gb). I don't know how to delete the data files and re create them.
Regards
Hans

Hi Hans,
no, you can also do it using DBMGUI. The process is really the same as when you're doing a homogenous system copy, the only difference is the target itself is the same db instance.
You'd have to make sure you've backup up all (data+log) and no further data was created (for example by making a full data backup in ADMIN mode and saving the log). Then you'd need to initialize the DB and specify the desired number of (data) volumes and make sure you select the radio button labelled 'Create instance for recovery' during the initialization process, so the instance will only be put into ADMIN, after which you can then recover (using the backups made in the beginning).
I'd recommend to test this out yourself on a small (non production) db instance.
In comparison, from MaxDB version 7.6.00 Build 22 onwards, you would just have deleted the unwanted volumes (taking into respect that the left over volume can hold all data).
Regards,
Roland

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