Forum Discussion

Albatross_'s avatar
Albatross_
Level 5
10 years ago

Missing drive path

*** Moved to new discussion from https://www-secure.symantec.com/connect/forums/missing-drive-path-2 ***

Sorry for bypassing the post. I am even facing the same issue.

I have one robot and two drives. But it shows twice. I believe there is no persistant binding between OS and HBA.

I have NB on linux redhat ES 4. After every reboot the paths are missing and creating prob when taking backups. reconfiguring stu manually always is not right solution I think

Can you please let me the steps to follow the persistant binding, 

Awating for the reply

 

Cheers

 

Backup and Recovery
Linux
NetBackup
  • Michael_G_Ander's avatar
    Michael_G_Ander
    10 years ago

    OneCommand/HBAnyware for Emulex, on *NIX system there often are a .conf file where you can do the persistent binding too. Might be called persistent naming for some *NIX systems

    The steps are

    1. Identify the tape drive(s) WWN(s)

    2. Setup the persistent binding on the HBA(S) for the tape drive(s) WWN(s)

    3. Reboot

    4. Check that the tape drive keeps the assigned SCSI ID(s)

  • Marianne's avatar
    Marianne
    Level 6
    10 years ago

    Persistent binding is a function of the HBA in the backup server that is used to connect to backup devices.

    So, you need to find out which make and model hba in the server and then download the hba tools from the manufacturer's web site.
    For example - the tool for Qlogic is Sansurfer. 

  • Albatross_'s avatar
    Albatross_
    Level 5
    10 years ago

    Hi Marianne,

    The HBA we are using is qlogic qla2462.

    I have installed san surfer on the Backupserver. checked for the ports and luns everything seems to be fine. I think there is multipath configured in switch level. But I dont have access to that...

    Help me out in solving the drive missing path erros, they are recurring once the servers gets halted or rebooted.

    If I make the HBA persistant will the issue be solved .

    Can you please tell me how to configure and save me from this..

    lspci output:

    02:01.0 Fibre Channel: QLogic Corp. ISP2422-based 4Gb Fibre Channel to PCI-X HBA (rev 02)
    02:01.1 Fibre Channel: QLogic Corp. ISP2422-based 4Gb Fibre Channel to PCI-X HBA (rev 02)
    06:01.0 Fibre Channel: QLogic Corp. ISP2422-based 4Gb Fibre Channel to PCI-X HBA (rev 02)
    06:01.1 Fibre Channel: QLogic Corp. ISP2422-based 4Gb Fibre Channel to PCI-X HBA (rev 02)

    lsmod output:

    qla2400               232897  0
    qla2xxx               196513  2 qioctlmod,qla2400
    scsi_transport_fc      12353  1 qla2xxx
    scsi_mod              146321  11 st,sg,lin_tape,ib_srp,usb_storage,mptsas,mptspi,mptscsi,qla2xxx,scsi_transport_fc,sd_mod

    sansurfer:

     

    sansurfer.png

     

    Cheers

     

     

     

     

     

     

     

  • Michael_G_Ander's avatar
    Michael_G_Ander
    Level 6
    10 years ago

    OneCommand/HBAnyware for Emulex, on *NIX system there often are a .conf file where you can do the persistent binding too. Might be called persistent naming for some *NIX systems

    The steps are

    1. Identify the tape drive(s) WWN(s)

    2. Setup the persistent binding on the HBA(S) for the tape drive(s) WWN(s)

    3. Reboot

    4. Check that the tape drive keeps the assigned SCSI ID(s)

  • sdo's avatar
    sdo
    Moderator
    10 years ago

    Maybe this will help:

    http://filedownloads.qlogic.com/files/driver/44431/User_Guide_SANsurfer_FC_HBA_Mgr_OEMs_C.pdf

    ...see page 7-41.