Rotating Backup - defeating drive letter anarchy

[Tens]

Thanks for the useful article showing us how to effectively prevent wandering drive letters from causing the backup process to fail.
https://www.backup4all.com/rotating-bac ... u0N1fKGTgx
It took me a bit of time to get through this, but I kept getting an error if the external disk connected was the first one referenced in the script, but not if it was the second. I had followed the instructions at point 11 -Select the 'Abort backup if action fails'. It seems that the script looking for the non existent 2nd drive was causing the error. Unchecking this option allows either disk to be found and the backup proceeding normally.
Am I doing the right thing here?

[Adrian (Softland)]

Hi,

Please use this script:
> REM unmount first
> mountvol C:\DiskMount /D
> REM try mount first drive (it will mount label W); fails if disk is not online
> mountvol C:\DiskMount \\?\Volume{301547fa-2c57-11e4-8317-f2b8544bc870}\
> IF %ERRORLEVEL% EQU 0 GOTO :end
> REM try mount second drive (it will mount label V); fails if disk is not online
> mountvol C:\DiskMount \\?\Volume{aeb73438-7f5c-11e3-8283-74d02b7dfc4e}\
> :end

After the first mountvol attempt, if the correct drive was mounted, the script will exit with success, without trying the second volume mount. Otherwise, the second attempt will be unsuccessful and the script will be considered with error.

[Tens]

Excellent Sir.
Thanks for that. Will try it later but I can see why that would work

[Tens]

Done that and it works fine - but I'd point out that you're missing an extra backslash before the \?\Volume on lines 4 and 7.
Thanks for your help.

[Adrian (Softland)]

Hi,

I added the double backslash now.

[Tens]

The above is now working perfectly. Thanks.

Though not a big deal, and probably not affecting many users, but if I've forgotten to connect a backup disk, the script correctly fails, and Backup4all then quits with an abort. It would be nice if there was an option to send an email if this happens.

[Adrian (Softland)]

Hi,

We will add your suggestion to our Wishlist.

[Tens]

Thanks. You're stars.