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mhmtakpolat
1 Copper

Can I restore backup from physical cartridge which is don't have barcode sticker and no information about backed up data

Hi everyone,

We have physical LTO5 cartridge without any sticker on it. We are sure that there is networker backup inside it but we also don't know which client backup it have.

So, is there any way to restore data from this cartridge?

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3 Replies
wlee4
2 Iron

Re: Can I restore backup from physical cartridge which is don't have barcode sticker and no information about backed up data

  1. First, set the write protect tab on the tape cartridge itself
  2. In NMC, under Devices window...  select "Diagnostic Mode"
  3. In the jukebox properties, Timer tab, set the idle device timeout=0
  4. Pick at tape drive that is managed by the jukebox.  Go into its NetWorker properties and set it to read only.
  5. Physically move the tape into one of the jukebox slots
  6. From command line  (in administration mode), inventory the slot using:   nsrjb -IEv -S (slot), where (slot) is the slot number where the tape is located in.  IEv is spelled Ingrid, Edgar, victor
  7. Load without mount the tape into the tape drive.   This can be done from command line using:
    1. nsrjb -lnv -S (slot) -f (drive);  where (slot) is the slot number where the tape is located in, and (drive) is the NetWorker device name.  "lnv" is spelled larry, nancy, victor... and all lower case
  8. From command line, scan the tape to see what NetWorker can recognize using:
    1. scanner -v (drive) >out.txt 2>&1

After the scanner command completes:

  1. Eject the tape using: nsrjb -uv -f (drive)
  2. Go back into the drive properties and un-select the Read-Only flag
  3. Remove the tape from the jukebox
  4. Review the file out.txt to see what it reports is on that tape volume.

Note:  depending on the amount of data written to this tape, the scanner command can take a long time to complete.

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wlee4
2 Iron

Re: Can I restore backup from physical cartridge which is don't have barcode sticker and no information about backed up data

To recover data that is on this tape, the tape volume and its contents must first be cataloged into the NetWorker Media database.

  1. Review the output file out.txt.  Find the client name whose data you want to recover from.
  2. Ensure that the client name resolves to an i.p address
  3. At this point, I strongly urge you to make a bootstrap backup before proceeding further.
  4. In NMC, create the NetWorker client, using the same name as reported in the output file.
  5. Now to populate the NetWorker Media Database.  You will follow the same steps 1-7 from  above.
  6. To scan the entire tape, use:  scanner -m  (drive)  >out2.txt 2>&1

After the scanner command completes:

  1. Eject the tape using: nsrjb -uv -f (drive)
  2. Go back into the drive properties and un-select the Read-Only flag
  3. use the following to verify that NetWorker has information on the volume:
    1. mminfo -avot (NetWorker volume name)

At this point, the mminfo should list all the backups that are on that tape volume.  However, they would be in recoverable mode only.

Depending on what you want to recover, you can either perform a saveset recovery (for file system backups only), or you may still have to make the saveset browsable by using the scanner -i command .

For example:  if you wanted to catalog the saveset=123456789 so that you can then "browse" and select what files you want to recover, or if this backup was done using one of the NetWorker modules, then  you load the tape back into a tape drive, and run:

   

     mminfo -avot -q ssid=123456789 -r mediafile,mediarec

     scanner -i -f (mediafile#) -r (mediarec#) -S 123456789 (drive)


If successful, then the following will show that the saveset is now browsable:


     mminfo -avot -q ssid=123456789


And you can now proceed with the recovery.

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bingo
4 Germanium

Re: Can I restore backup from physical cartridge which is don't have barcode sticker and no information about backed up data

Sure this will be possible. You already received guidelines how to re-add the save set information. Then just recover the save set or part of it.

Be aware that you might need to re-add parameters like client(s) and /or pool(s) if they have already been deleted.

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