Forum Discussion

ali_hassan's avatar
ali_hassan
Level 4
10 years ago

Restore taking a long time?

Hi Guys,

Not sure what is going on here .. I am trying to restore a 193 Bytes files just as a test to an alternate location and I see the restore job running and active but it seems to be running for like 30 mins now and still going... this is the NDMP backup which I am trying to restore to an alternate location on the same NDMP server.

I have a seperate NDMP backup job running simultaneously but I dont think that should matter... I have a feeling that its trying to read all the data from the tape?

I am using Backupexec 2012... 

Thanks

A

2012
Backup and Recovery
Backup Exec
Recovering
Restore
Windows Server (2003-2008)
  • ali_hassan's avatar
    ali_hassan
    10 years ago

    Ok the question has been answered... the restore finally completed after 42 mins and restored the 193 Byte file!

    This is interesting wonder what would happen if I had to retore like 200 GB!

    -A

11 Replies

Sort By
  • ali_hassan's avatar
    ali_hassan
    Level 4
    10 years ago

    Ok the question has been answered... the restore finally completed after 42 mins and restored the 193 Byte file!

    This is interesting wonder what would happen if I had to retore like 200 GB!

    -A

  • VJware's avatar
    VJware
    Level 6
    10 years ago

    Is the tape storage connected directlt to the filer ? Is the option "Enable Direct Access Recovery" enabled in the restore job ?

  • maurijo's avatar
    maurijo
    Level 6
    10 years ago

    Also a NDMP backup has to stage the entire file to then extract your 193kb file, this is a disadvantage of NDMP.

    You should perform restore testing anyway

  • ali_hassan's avatar
    ali_hassan
    Level 4
    10 years ago

    Thanks for the pointer.. looks like NDMP works in its own special way so cant really complain I guess...Anyway I have to restore a 10Gb folder now to validate my backups... so now that I know how it works I can just sit back and let it do its own thing...

  • maurijo's avatar
    maurijo
    Level 6
    10 years ago

    You are restoring from tape, so it will always stage the entire backup. Its not NDMP dependand

  • Larry_Fine's avatar
    Larry_Fine
    Level 6
    10 years ago

    You are restoring from tape, so it will always stage the entire backup. Its not NDMP dependand

    Can you clarify that statement please?  I believe that I have restored many files from tape without staging.

  • maurijo's avatar
    maurijo
    Level 6
    10 years ago

    GRT restore from tapes is always staged... that's just the way it works.

  • Larry_Fine's avatar
    Larry_Fine
    Level 6
    10 years ago

    You didn't mention GRT.  My point is that I don't think that ALL restores are GRT restores.  When restoring NTFS files from a simple NTFS file backup on tape, no disk staging should  be needed.

  • maurijo's avatar
    maurijo
    Level 6
    10 years ago

    OP clearly states that he is trying to restore a single 196 bytes file from his NDMP backup..so that is a GRT restore.

     

    What you say is correct, when you restore full backups it is not staged...

  • Larry_Fine's avatar
    Larry_Fine
    Level 6
    10 years ago

    OP clearly states that he is trying to restore a single 196 bytes file from his NDMP backup..so that is a GRT restore.

    I disagree that this is a GRT restore simply because it is from NDMP.  Restoring a file from a file based backup is not GRT.  The OP is probably experiencing the NDMP box doing internal filtering to get to the one file he wants, which takes time & resources on the NDMP box, but has nothing to do with BE.  There is no mention of GRT or staging in the NDMP section of the admin guide.  If there is documentation that shows GRT is related to NDMP, I would like to learn.

    Ali, what type/brand of NDMP server are you using and how it the tape library connected to it?  That probably has some impact on how quickly the NDMP box can extract one file for a restore.