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April 15th, 2016 01:00

how to backup to disk to tape

Hi,

I have Networker V 8.2.2 running on Windows 2012.

Mu clients are Windows servers, Linux servers and NETAPP storage devices (NDMP).

I now backup directly to LTO-6 tape.

I would like to test backup to disk -to-tape ...

Is there  a document describing how to set it up and how backup AND how to restore ?

Kind regards,

Johan

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79 Posts

April 15th, 2016 02:00

Hi,

Not data domain..

When i backup to a AFTD, and i backup than that folder to tape....... how does a restore work than ? Do i have to overwrite  the contence of my AFTD on disk first  ?

Can i restore directly the files/folders from tape to their destination ?

I looked in the admin guide.... not clear to me ...

Rgds,

Johan

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April 15th, 2016 02:00

Disk like DD or something else?  It is all covered in admin guide and for DD I believe there is dedicated document as well.

2.4K Posts

April 15th, 2016 02:00

In general, you just need to run these usual steps:

  - configure a disk device (test with AFTD - you can add a DD later)

  - configure a new pool

  - label the media in the disk device to the new pool

  - run a manual backup to that pool (save -b )

Be careful - if you have a non-volume licensed environment you must add the appropriate license codes to make this running. You will find them in the appropriate Licensing Guide (you may probably use an older version).

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April 15th, 2016 03:00

Yes of course, you restore it from where data is at that moment.  So, if it is on tape, then data goes directly back to client and bypasses disk when you call restore.

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April 15th, 2016 03:00

You will have different pool for tapes and disk.  Clients will follow pool (assign it via group).  If you are restoring data which is partially needed on disk and partially on tape NW will handle this automatically.

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79 Posts

April 15th, 2016 03:00

How do i specify to backup the AFTD to tape ?

do i just create a client with as saveset the folder corresponding to the AFTD and i write it to tape ?

How do i sync the ned of the backup to disk with the start of the AFTD to tape ?

Rgds,

Johan

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79 Posts

April 15th, 2016 04:00

So, the main idea  is to backup the AFTD folder e.g. D:\BACKUP as a saveset of a client to tape.

That's all.

Rgds,

Johan

215 Posts

April 15th, 2016 05:00

Johan,

I’m sure you can backup to tape the raw contents of an adv-file device but what would be unclear to me is whether it would be able to be recovered

from back in place or to another disk and its contents subsequently leveraged by Networker to recover the backups it contains.

I personally have never tried or ever considered doing this but my thoughts would be that it would not be useful coming back from tape unless

maybe it was recovered back in place to the original location. If updates were made to the device after it was backed up to tape then these changes

obviously would not be present after recovering it from tape and the rest of the Networker media database would also be out of sync with what is

now physically present on the adv-file device.

regards,

Adam

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April 15th, 2016 05:00

JohanRM wrote:

So, the main idea  is to backup the AFTD folder e.g. D:\BACKUP as a saveset of a client to tape.

That's all.

Rgds,

Johan

Why would you backup AFTD folder??  AFTD is the same as tape.  Either you use disk or tape (or both).  But why backup of the backup?  That doesn't make sense.  If you wish to move AFTD to tape, then you stage (nsrclone -m).  If you wish to have copy on both disk and tape then you clone.

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April 15th, 2016 06:00

I want 2 copies:

1 on disk (for quick requested restores)

1 on tape to move to a remote location (for disaster recovery).

That's why i would like to put the backup of the AFTD on tape... if this makes sense

I did a test:

1. I made a backup of the folder c:\tmp of the client PROD227 to AFTD folder D:\BCKP hosted on the Networker server LGT2

2. I than made of backup of D:\BCKP of LGT2 to tape

3. I than launch Networker User on PROD227 trying to restore a file in the folder c:\tmp on PROD227.

result: I only see the backup of c:\tmp on disk; not THE ONE to tape

What to do ?

Rgds,

johan

2.4K Posts

April 15th, 2016 06:00

I don't understand what you mean by

    "So, the main idea  is to backup the AFTD folder e.g. D:\BACKUP as a saveset of a client to tape."

You do not move the directory but the save sets - it's called 'cloning' ... business as usual.

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April 16th, 2016 03:00

My honest answer - learn NetWorker basics.

What you do (using 'copy') is performing an OS command, not a NW operation. You bypass NW completely.

How to you expect NW to know about that at all? - if you use the copy command, will any other application than the OS/ the filesystem know about it?

1. Configure your 2 pools as mentioned before.

       - disk pool = backup pool

       - tape pool = clone pool

2. Label the media appropriately to the correct pool

3. Run "save [-b ]"   - You only need to specify the pool if you have more than 1 backup pool

4. Run 'mminfo -q "name= " -r "client,name,level,savetime,ssid,cloneid,volume'

5. Clone the backup "nsrclone -S [-b ]"

6. Repeat the mminfo command - you should now see the same save set with 2 different cloneids (timestamps), each on

    its appropriate volume.

7. You may now recover. By default, NW will use the first instance (the disk media, the one with the lowest cloneid).

8. Unmount the disk media

9. Set the disk save set to suspect "nsrmm -o suspect -S / "

[10. You may now remount the disk media]

11. If you repeat the recover process, NW will now use the tape media.

Please invest the 30 minutes to understand the principle.

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April 16th, 2016 12:00

JohanRM wrote:

What to do ?

Rgds,

johan

Already explained - use cloning.  So, let the backup go to disk as you did so far, but also configure cloning so that cloning writes to tape.  Now, to recover from clone I think you must use wizard or from CLI you can specify which pool to use and there you can select clone pool. If backup pool is not available for restore, NW will automatically use clone one if I remember correctly.

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April 17th, 2016 23:00

So backup-todisk-to-tape = backup-to-disk + clone-to-tape.

I know the basics of NW but i never used cloning.

Rgds,

johan

April 18th, 2016 00:00

Hi John,

To my knowledge clone in simple is  "copy&paste",  so best option discussed earlier the data must be backedup to disk, later it is cloned(copied) to tape.

Regards

Vish

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