Blue Ready-to-Remove LED Does Not Illuminate After Issuing the cfgadm -c unconfigure Command

Bug 15622936

Issue: If you need to replace a drive connected to the HBA on a system running the Oracle Solaris OS, it is difficult to physically locate that drive after issuing the cfgadm -c unconfigure command. This is because the blue Ready-to-Remove LED is not illuminating on the drive, as it is expected to do.

Workaround: To determine the physical location of the disk, and then to hot plug the disk, perform the procedure in this section.

Determine the Physical Location, and Then Hot Plug, a Disk

1. Run the format command on the disk that you want to physically locate in the chassis of the system.

   In the following example, the disk that needs to be replaced is /dev/dsk/c14t50010B90004BEF66d0.

   # format c14t50010B90004BEF66d0
   selecting c14t50010B90004BEF66d0
   [disk formatted]
   FORMAT MENU:
   disk - select a disk
   type - select (define) a disk type
   partition - select (define) a partition table
   current - describe the current disk
   format - format and analyze the disk
   fdisk - run the fdisk program
   repair - repair a defective sector
   label - write label to the disk
   analyze - surface analysis
   defect - defect list management
   backup - search for backup labels
   verify - read and display labels
   save - save new disk/partition definitions
   inquiry - show vendor, product and revision
   volname - set 8-character volume name 
   !<cmd> - execute <cmd>, then return
   quit
   format> 
   

2. Issue the analyze format command.

   format> analyze
   ANALYZE MENU:
   read - read only test (doesn't harm SunOS)
   refresh - read then write (doesn't harm data)
   test - pattern testing (doesn't harm data)
   write - write then read (corrupts data)
   compare - write, read, compare (corrupts data)
   purge - write, read, write (corrupts data)
   verify - write entire disk, then verify (corrupts data)
   print - display data buffer
   setup - set analysis parameters
   config - show analysis parameters
   !<cmd> - execute <cmd> , then return
   quit
   quit
   

3. Issue the read analyze command and type y at the prompt.

   analyze> read
   Ready to analyze (won't harm SunOS). This takes a long time, 
   but is interruptable with CTRL-C. Continue? ypass 0
    
   

4. To find the physical drive slot in the chassis of the system, check the activity blinking LEDs on the drives.

   The activity LED blink rate will be consistent on the drive that you want to replace.

5. If you are unable to determine the drive slot due to other drive activity blink rates, do the following:
   1. Press Ctrl+Z at the command-line to suspend the analyze function.
   2. Look at the drive slots and verify that the drive that you want has a solid activity LED on the drive (the LED is no longer blinking, but remains illuminated).
   3. After you have found the drive slot that you want, run the fg command to resume the analyze function.
6. Type Ctrl+C at the command-line to interrupt the read test.
7. If you are unable to identify the drive, as described Step 4 and Step 5 in this procedure, do the following:
   1. Take the system to single-user mode in order to quiesce all other system activity
   2. Repeat Step 1 through Step 6.
8. Now that you have physically located the drive, issue the cfgadm -c unconfigure command to unconfigure the drive, and then remove the drive from the chassis.