Setting up shared storage- SCSI

Last published : Jun 11, 2026
Perform the following steps to set up shared storage.
To set up shared storage
  1. Connect the disk to the first cluster system.
  2. Power on the disk.
  3. Connect a terminator to the other port of the disk.
  4. Boot the system. The disk is detected while the system boots.
  5. Press CTRL+A to bring up the SCSI BIOS settings for that disk.
Set the following:
  • Set Host adapter SCSI ID = 7, or to an appropriate value for your configuration.
  • Set Host Adapter BIOS in Advanced Configuration Options to Disabled.
  1. Format the shared disk and create required partitions on it.
Perform the following:
  • Identify your shared disk name. If you have two internal SCSI hard disks, your shared disk is /dev/sdc.
Identify whether the shared disk is sdc, sdb, and so on.
  • Type the following command:
    \# fdisk /dev/shareddiskname
    For example, if your shared disk is sdc, type:
    \# fdisk /dev/sdc
  • Create disk groups and volumes using Volume Manager utilities.
  • To apply a file system on the volumes, type: \# mkfs -t fs-type /dev/vx/dsk/disk-group/volume

    For example, enter the following command:

    ```bash
    \# mkfs -t vxfs /dev/vx/dsk/dg/vol01
Where the name of the disk group is dg, the name of the volume is vol01, and the file system type is vxfs.
  1. Power off the disk.
  2. Remove the terminator from the disk and connect the disk to the other cluster system.
  3. Power on the disk.
  4. Boot the second system. The system can now detect the disk.
  5. Press Ctrl+A to bring up the SCSI BIOS settings for the disk.
Set the following:
  • Set Host adapter SCSI ID = 6, or to an appropriate value for your configuration. Note that the SCSI ID should be different from the one configured on the first cluster system.
  • Set Host Adapter BIOS in Advanced Configuration Options to Disabled.
  1. Verify that you can view the shared disk using the fdisk command.
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