Locating disk drives in a sea of A5200s

I manage about a dozen Sun A5200 storage arrays, and periodically need to replace failed disk drives in these arrays. To ensure that I replace the correct device, I first use the format utility to locate the physical device path to the faulted drive:

$ format

                    < ..... >
43. c7t22d0 
   /sbus@3,0/SUNW,socal@0,0/sf@0,0/ssd@w22000004cf995f6c,0

Once I know which device to replace, I use the luxadm “remove_device” option to remove the drive for replacement, and then run luxadm with the “led_blink” option to turn an amber LED on and off next to the faulted drive:

$ luxadm led_blink “/devices/sbus@3,0/SUNW,socal@0,0/sf@0,0/ssd@w22000004cf995f6c,0:a,raw”

Once I enable the led_blink option, I wander down to the data center, locate the drive with the blinking light, and swap out the failed disk with a new disk. Even though the A5200 is an extremely old storage array, I still thoroughly enjoy managing them.

2 thoughts on “Locating disk drives in a sea of A5200s”

  1. You’re so right about the 5200’s.
    We got to play with a5200’s during cluster training a couple of years ago. That many disks in one array is cool!

    Dean

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