PRIMECLUSTER Wizard for NetWorker 4.2 Configuration and AdministrationGuide

2.9.3 Notes for Constructing Tape Device Shared System

Setting Operating Environment

If tape device is shared on cluster system on NetWorker Server, NetWorker Storage Node, device pathname of shared tape device must be specified with operating environment setting.
For the detail of NetWorker Configuration, see “2.6 NetWorker Resource Creation and Setting”.

Note

After installing PRIMECLUSTER Wizard for NetWorker, change operating environment before stating the cluster application. If the cluster application is started without specifying device pathname of shared tape device, tape may not be able to be mounted to jukebox.
Device and SCSI port that the specified device uses must be correspond in the cluster system. If specified value is not correspondent in each cluster node, tape library may not be able to use.

Setting /kernel/drv/st.conf

If tape library is shared on cluster system, the below setting is needed.

1. Edit /kernel/drv/st.conf using by vi(1) command according to manual that appends in hardware.

   Edit st.conf as follows, in case description of st.conf doesn't exist in the manual of the hardware.

   1. Execute the mt(config) command.

      # mt -f <Device path name of tape device> config

      Example

      # mt -f /dev/rmt/1cbn config
        tape-config-list=
        "HP      Ultrium 4", "HP Ultrium LTO 4", "CFGHPULTRIUMLTO4";
        CFGHPULTRIUMLTO4 = 2,0x3B,0,0x18619,4,0x44,0x44,0x46,0x46,3,60,1200,600,1200,600,600,18000;

   2. Add the output of the mt command to st.conf.

      Example

      tape-config-list=
      "HP      Ultrium 4", "HP Ultrium LTO 4", "CFGHPULTRIUMLTO4";
      CFGHPULTRIUMLTO4 = 2,0x3B,0,0x18619,4,0x44,0x44,0x46,0x46,3,60,1200,600,1200,600,600,18000;

2. After above setting, add ”ST_NO_RESERVE_RELEASE 0x20000” to the fourth parameter of drive information in st.conf. The following is an example in case of the tape device which uses Ultrium-4.
   

   Example

   Before changing	tape-config-list= "HP Ultrium 4", "HP Ultrium LTO 4", "CFGHPULTRIUMLTO4"; CFGHPULTRIUMLTO4 = 2,0x3B,0,0x18619,4,0x44,0x44,0x46,0x46,3,60,1200,600,1200,600,600,18000;
   After changing	tape-config-list= "HP Ultrium 4", "HP Ultrium LTO 4", "CFGHPULTRIUMLTO4"; CFGHPULTRIUMLTO4 = 2,0x3B,0,0x38619,4,0x44,0x44,0x46,0x46,3,60,1200,600,1200,600,600,18000;

3. Reboot this server.

Note

Do not use the tape library that sets above settings except NetWorker. And the tape library can not be shared between two or more NetWorker Servers. Data may be vanished if the tape library is shared by two or more NetWorker Servers.