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## Remove a Hard Drive

Note - This is a hot service procedure that can be performed by customers while the server is running. See Hot Service, Replaceable by Customer for more information about hot service procedures.

| Caution - The drive must be taken offline before it is removed. If it cannot be taken offline, the OS must be shut down to prevent running programs from attempting to use it.

1. Determine if you need to shut down the OS to replace the drive, and perform one of the following actions:
   - If the drive cannot be taken offline without shutting down the OS, follow instructions in Power Off the Server (SP Command). Then go to Step 3.
   - If the drive can be taken offline without shutting down the OS, go to Step 2.
2. Take the drive offline:
   1. At the Oracle Solaris prompt, type the `cfgadm -al` command to list all drives in the device tree, including drives that are not configured:

          # cfgadm -al

      This command lists dynamically reconfigurable hardware resources and shows their operational status. In this case, look for the status of the drive you plan to remove. This information is listed in the Occupant column.

          Ap_id                       Type         Receptacle   Occupant        Condition
          c0                          scsi-bus     connected    configured      unknown
          c0::dsk/c1t0d0              disk         connected    configured      unknown
          c0::dsk/c1t0d0              disk         connected    configured                                 unknown
          usb0/1                      unknown      empty        unconfigured    ok
          usb0/2                      unknown      empty        unconfigured    ok
          .
          .
          .

      You must unconfigure any drive whose status is listed as configured, as described in Step b.

   2. Unconfigure the drive using the `cfgadm -c` `unconfigure` command.

      Example:

          # cfgadm -c unconfigure c0::dsk/c1t1d0

      Replace `c0:dsk/c1t1d0` with the drive name that applies to your situation.

   3. Verify that the drive's blue Ready-to-Remove LED is lit.
3. Press the drive release button to unlock the drive and pull on the latch to remove the drive.

   | Caution - The latch is not an ejector. Do not force the latch too far to the right. Doing so can damage the latch.

4. Install the replacement drive or a filler tray.

   See Install a Hard Drive.

##### Related Information

- Install a Hard Drive

- Verify the Functionality of a Hard Drive

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