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Amaan's avatar
Amaan
Level 6
13 years ago

Backup selection (Unix)

Hi All,

I have one quick question. does "/" means ALL_LOCAL_DRIVES for Unix client backup selection.

Thanks,

Abdulloh

7.1.x and Earlier
Backup and Recovery
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  • J_H_Is_gone's avatar
    J_H_Is_gone
    13 years ago

    / is the root filesystem

    if there is only 1 filesystem on the server then - yes it would get everything.

    but if there is more than one

    / will only get the root filesystem ,and any other MOUNTED filesystem can be a different job of you say you want multi stream.

    example:

    Filesystem 512-blocks Free %Used Iused %Iused Mounted on

    /dev/hd4 2097152 1733616 18% 3727 1% /    < this is the root fs

    /dev/hd2 8388608 3718456 56% 51066 5% /usr   <this is usr that is mounted

    /dev/hd9var 2097152 799944 62% 9352 4% /var  <this is var that is mounted

    /dev/hd3 2097152 2003240 5% 138 1% /tmp   <this is tmp that is mounted

    so inside / there is a directory called usr and one called var and one called tmp.

    on top of those directories filesystems have been mounted (if you have access to the unix box  a "df" will show this).

    so when you say do multi streams  with all local drives it will do a job for

    /

    and one for

    /usr

    and one for

    /var

    and one for

    /tmp

    also in this is if you have anything mounted from outside the server like a NFS mount.  if you say do not mount cross points then it will not backup any NFS mounts (always best to back them up at the source).

     

    so with that info - do you need clarification on anything?

  • revarooo's avatar
    revarooo
    Level 6
    13 years ago

    No / will backup /  if you have Cross Mount points checked it will backup any mount points under it, like /home or /var for example.

    You can use ALL_LOCAL_DRIVES in unix and it will back up all filesystems individually. Lile with windows, so you can split the streams if you want.

    If you use ALL_LOCAL_DRIVES you do not want "Cross mount points" checked as you may end up backing up filesystems twice, when / crosses over to the other mounts.

     

  • J_H_Is_gone's avatar
    J_H_Is_gone
    Level 6
    13 years ago

    / is the root filesystem

    if there is only 1 filesystem on the server then - yes it would get everything.

    but if there is more than one

    / will only get the root filesystem ,and any other MOUNTED filesystem can be a different job of you say you want multi stream.

    example:

    Filesystem 512-blocks Free %Used Iused %Iused Mounted on

    /dev/hd4 2097152 1733616 18% 3727 1% /    < this is the root fs

    /dev/hd2 8388608 3718456 56% 51066 5% /usr   <this is usr that is mounted

    /dev/hd9var 2097152 799944 62% 9352 4% /var  <this is var that is mounted

    /dev/hd3 2097152 2003240 5% 138 1% /tmp   <this is tmp that is mounted

    so inside / there is a directory called usr and one called var and one called tmp.

    on top of those directories filesystems have been mounted (if you have access to the unix box  a "df" will show this).

    so when you say do multi streams  with all local drives it will do a job for

    /

    and one for

    /usr

    and one for

    /var

    and one for

    /tmp

    also in this is if you have anything mounted from outside the server like a NFS mount.  if you say do not mount cross points then it will not backup any NFS mounts (always best to back them up at the source).

     

    so with that info - do you need clarification on anything?

  • Marianne's avatar
    Marianne
    Level 6
    13 years ago

    Rather use ALL_LOCAL_DRIVES.

    This will backup all filesystems seen as 'local' by OS.

    See ALL_LOCAL_DRIVES directive  topic  in NBU Admin Guide for UNIX and Linux, Volume I  http://www.symantec.com/docs/DOC3650

  • Amaan's avatar
    Amaan
    Level 6
    13 years ago

    Thanks all of your answers.

    Let me clarify, if i will do "/" and cross mount pont it will do backup as ALL_LOCAL_DRIVES, is it correct?

    And what is different between Follow NFS and Cross mount point?

  • J_H_Is_gone's avatar
    J_H_Is_gone
    Level 6
    13 years ago

    if you want to get the system do all local drives.

    NFS is something from OUTSIDE the server that has been mounted onto the unix server so it looks like a directory (you can see these in a df as well) 

    mount points are were filesystem configured on the server are MOUNTED at some point within another filesystem

    like var is mounte ON the / file system as the var directory.

    as told above my M.  you want to back up your unix server  do ALL_LOCAL_DRIVES!

     

  • revarooo's avatar
    revarooo
    Level 6
    13 years ago
    Follow nfs will backup shared mounts from remote systems mounted on client. Cross mount points has been explained. If you backup just / it will not back /var if its a seperate file system UNLESS you have cross mount points selected. J.Hinchcliffe explained it well above.