Platform Notes: Using luxadm Software

Removing a Disk Drive

This section describes how to configure your system to remove a disk drive while the power is on and the operating system is running. Use the procedures in this section if you do not intend to replace the disk drive.

You must select the disk and stop any activity or applications on it, unmount it, physically remove the drive, and configure the Solaris environment to recognize that the drive is no longer there. You must then configure your application to operate without this device in place.

Caution - Caution -

These procedures should be performed only by a qualified system administrator. Performing hot-plug operations on an active disk drive can result in data loss and/or data corruption.

Preparing to Remove the Disk Drive

  1. Back up your system.

  2. Identify the disk media name for the disk you intend to remove.

    # vxdisk list | grep cwtxdysz

    For example, if the disk to be removed is c2t1d0, enter:

    # vxdisk list | grep c2t1d0
    c2t1d0s2     sliced    disk01       rootdg       online

    The disk media name is the third field in the output above: disk01.

    You can use the vxdiskadm utility to prepare the disk for removal.

  3. Type vxdiskadm in a shell.

    For example:

    # vxdiskadm

    This operation is interactive and requires user confirmation of the operation.

  4. Select the "Remove a disk" option.

    When prompted for a disk name to remove, type the disk media name from Step 2.

    vxdiskadm marks the disk to be removed.

    Refer to the vxdiskadm(1M) man page for further details.

Removing the Disk Drive

  1. Use the luxadm remove_device command to remove the disk.

    The luxadm remove_device command is interactive. You will be guided through the procedure for removing a device or chain of devices.

    # luxadm remove_device /dev/rdsk/c2t1d0s2
      WARNING!!! Please ensure that no filesystems are mounted
    on these device(s).
      All data on these devices should have been backed up.
    The list of devices which will be removed is:
      1: Box Name "macs1" front slot 1
    Please enter 'q' to Quit or <Return> to Continue: 
    stopping:  Drive in "macs1" front slot 1....Done
    offlining: Drive in "macs1" front slot 1....Done
    Hit <Return> after removing the device(s).

  2. Remove the disk drive and then hit any key.

    Note -

    The yellow LED on the designated disk drive(s) should be flashing.

    The following is displayed:

    Drive in Box Name "macs1" front slot 1
        Removing Logical Nodes: 
    	Removing c2t1d0s0
    	Removing c2t1d0s1
    	Removing c2t1d0s2
    	Removing c2t1d0s3
    	Removing c2t1d0s4
    	Removing c2t1d0s5
    	Removing c2t1d0s6
    	Removing c2t1d0s7