YoYottaID

Spanning tapes or drives

YoYottaID will automatically split up large archives across multiple tapes.
Here we have two LTO drives and want a master and safety copy. So we will need twice as many tapes.
If spanning across tapes the job will be running for a long time, so best to use direct attached fast storage.
Turn off Quick Verify in Preferences as a full verify is needed when spanning tapes.

Select first master and safety tapes

Click Add COPY #1,2. In this example all our master tapes have odd serial numbers and safety tape numbers are even.


Ready to start

Now two backups are ready. COPY #1 is the master and COPY #2 will be the safety copy.
There are 10 files to backup, the first three will fit onto each tape. Click the green button to start.


Backup space warning

YoYottaID warns that the entire backup will not fit on one tape. Click Continue.


More space needed

After the copy and verify, more space is needed so YoYottaID prompts to add new destinations.


Add second Master tape

Select the first tape TP0001 and press the eject button in the top right. Repeat this for tape TP0002.
Important, don't remove the first tapes from the backup, just eject them. They will show as NOT MOUNTED.
Once a spanned job has started it is important not to open Edit Paths.

Select COPY #1 in the main window, then open the Add Backup panel. Select tape TP0003 and click Append to COPY #1. This adds a new tape to the master backup.


Add second Safety tape


Select COPY #2 in the main window, then open the Add Backup panel. Select tape TP0004 and click Append to COPY #2. This adds a new tape to the safety backup.


Second tapes ready

Click the green arrow to start the backup.


Second tapes complete

Now tapes are complete. There are some files left to copy. Eject the tapes and mount two more and start.


All finished

Now there is a green confirmation tick for COPY #1 and COPY #2. Eject the last two tapes.


YoYottaID Automation

If you have an LTO tape library then you can load all the tapes at once and use YoYottaID Automation to create an automated backup.


Resuming a spanned job

If the job or any of the destinations are removed from the GUI by mistake, then the copied and verified status will be lost.
Once a spanned job has started it is important not to open Edit Paths.
Also make sure that you do NOT have Quick Verify turned on in Preferences as spanning tapes needs full verification.


If this happens then the job can be resumed by following these steps.

If any tapes have the wrong data then reformat them first.
Load and mount first tape. Add to COPY #1 if not already there.
Make sure the destination paths are set exactly the same as the previous backup.
Click the refresh button above the job table.
Make sure that you see the number of files copied and verified.
Load and mount the next tape. Append to COPY #1 and then click refresh. Again ensure you see the Copied and Verified count.
Repeat this for any further tapes and then click start.
YoYottaID will check the tapes and resume copying.


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