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Minimum disk configuration for Sun StorEdge A5x00 storage arrays

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This article provides a quick guide to the supported disk configuration on a Sun StorEdge A5000, A5100 and A5200 (aka photon) storage arrays.

# slotscomments
14 In the minimum disk drive configuration for the 14-slot disk array, disk drives are shipped in rear backplane slots 0, 3, and 6 as well as front backplane slots 3 and 6.
22 In the minimum disk drive configuration for the 22-slot disk array, disk drives are shipped in rear backplane slots 0, 3, 6, and 10 as well as front backplane slot 0, 5, and 10.

Verifying minimum config when no physical access

If you are remote to your data center or do not have physical access to the Sun StorEdge array but have access to the system the array is attached then you can use the luxadm command to verify minimum confugration.

  1. Use luxadm probe to obtain the array enclosure name 
    sunhost# luxadm probe
Found
SENA Name:photon   Node WWN:5080020000000598
  Logical Path:/dev/es/ses0
  Logical Path:/dev/es/ses1
  2. Use luxadm display enclosure_name to display the device specific data 
    # luxadm display photon
                                             (luxadm version: 1.36 98/03/10)             SENA
            DISK STATUS
SLOT FRONT DISKS      (Node WWN)          REAR DISKS        (Node WWN)
0    On(O.K.)         200000203722c7be    On(O.K.)          200000203722d2e5
1    Not Installed                        Not Installed
2    Not Installed                        Not Installed
3    Not Installed                        On (O.K.)         200000203722ce33
4    Not Installed                        Not Installed
5    On (O.K.)        200000203722c7be    Not Installed
6    Not Installed                        On (O.K.)         200000203722cd73
7    Not Installed                        Not Installed
8    Not Installed                        Not Installed
9    Not Installed                        Not Installed
10   On (O.K.)        200000203722cfaa    On (O.K.)         200000203722cce7

NOTE: From the luxadm display you can see that the array has 22 slots and contains the minimum configuration.

DO NOT MOVE DISK DRIVES FROM THE MINIMUM CONFIGURATION