This article provides a quick guide to the supported disk configuration on a Sun StorEdge A5000, A5100 and A5200 (aka photon) storage arrays.
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.
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.
Use luxadm probe to obtain the array enclosure name
sunhost# luxadm probe
SENA Name:photon Node WWN:5080020000000598
Use luxadm display enclosure_name to display the device specific data
# luxadm display photon
(luxadm version: 1.36 98/03/10) SENA
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.