Forum Discussion

magteix's avatar
magteix
Level 3
11 years ago

CIFS Backup on RHEL

Hi All,

Due to we have no longer NDMP Backups on place, we are trying to back it up a CIFS (NTFS on NetApp) on our RHEL NBU Server, but we are receiving a lot of warning/errors.

 

Here what I did:

1. Mount CIFS Share

mount -t cifs -o username=netbackup,password=12345678,dir_mode=0755,file_mode=0775,defaults,directio,rsize=65536,wsize=57344 //filer-serv/C_SHARES$ /netbackup_cifs/

2. Create policy

Policy Type: Standard

Allow multiple data streams: yes

Backup Selection: /netbackup_cifs/

3. Run the backup

The "backup" complete and all files are backed up, but with errors. I have attached the job log file. Can someone help me

Thanks!

Backup and Recovery
Best Practice
Linux
NetBackup
  • jmontagu's avatar
    jmontagu
    11 years ago

    I believe you will find that even though the job details indicate a status 0 that you do not have a valid image (restorable). You will note that after all the warning messages you see this entry:

    08/11/2014 17:13:40 - Info bpbkar (pid=7875) bpbkar waited 0 times for empty buffer, delayed 0 times

    No data was transferred by bpbkar

    The problem is that you are attempting to mount the NetApp Filer as a CIFS share in a Linux Environment. CIFS is for Windows Environments and NFS is for Linux. Please see the following documentation which describes how to backup CIFS shares in a Windows environment.

    http://www.symantec.com/docs/TECH198175

  • INT_RND's avatar
    INT_RND
    Level 6
    11 years ago

    Who is the client?

    Sounds like you are using a media server as the client with a mount point to the fileserver using the cross mount points feature.

    I am curious about using policy type "MS-Windows" for this backup. It might not work at all. If you had a Windows server near the NDMP device that you could map the network drive. Then you could certainly use the Windows policy type. 

    It seems odd to use an MS protocol between a bunch of Linux servers...

    Could you share the folder from Netapp using NFS and then mount that natively in the RHEL system?

     

    EDIT:

    Information about the error you are getting:

    http://www.symantec.com/business/support/index?page=content&id=TECH38434

  • jmontagu's avatar
    jmontagu
    Level 4
    11 years ago

    I believe you will find that even though the job details indicate a status 0 that you do not have a valid image (restorable). You will note that after all the warning messages you see this entry:

    08/11/2014 17:13:40 - Info bpbkar (pid=7875) bpbkar waited 0 times for empty buffer, delayed 0 times

    No data was transferred by bpbkar

    The problem is that you are attempting to mount the NetApp Filer as a CIFS share in a Linux Environment. CIFS is for Windows Environments and NFS is for Linux. Please see the following documentation which describes how to backup CIFS shares in a Windows environment.

    http://www.symantec.com/docs/TECH198175

  • magteix's avatar
    magteix
    Level 3
    11 years ago

    Hi INT_RND,

    Yes, we are using the Media/Master Server (RHEL) as the client with a mount point to the filer.

    We can't share the folder from NetApp using NFS due to NTFS permissions. That is the reazon for what we can't mount the share as NFS on RHEL

  • Marianne's avatar
    Marianne
    Level 6
    11 years ago

    There was another suggestion to use a Windows Media server or client where CIFS share can be backed up from.
    See TN in above post.

    Have you tried this yet?

  • Mouse's avatar
    Mouse
    Moderator
    11 years ago

    You don't need to mount the volume, also for backing up NTFS permissions correctly, you need to back it up from a Windows client. Even then, you may find some metadata skipped, the correct way to backup NAS volumes with all metadata is a volume dump (using NDMP). Other option is to use a Windows proxy client.

    Symantec have a technote for this problem, and also one mentioned above http://www.symantec.com/docs/HOWTO34483

     

  • Yuvi's avatar
    Yuvi
    Level 5
    11 years ago

    Hi ,

    Try to change the credentials in the master server client and legacy client services for the account which is having acces to the NDMP filesystem monuted in the server , try triggering backup it will work.

    If it works plan accrdingly for the further backups.

  • Yasuhisa_Ishika's avatar
    Yasuhisa_Ishika
    Level 6
    11 years ago

    If possible, please consider to mount via NFS. If user mapping from unix user to ntfs user is well configured(like YOUR_DOMAIN¥administrator <= root) on NetApp, you can access files under ntfs security style path via NFS.