Combining multiple SGPIO streams to provide device status indicators

An enclosure management integrated circuit configured to provide an activity indicator and a rebuild indicator for a mass storage device, the integrated circuit comprising:

• a first interface configured to receive data indicating whether the mass storage device is active, wherein the first interface comprises one of a serial general purpose input/output (SGPIO) interface or an I2c interface;
• a second interface configured to receive data indicating whether the mass storage device is active, wherein the second interface comprises one of an SGPIO interface or an I2c interface;
• means for illuminating the activity indicator for the mass storage device when either the data received on the first interface or the data received on the second interface indicates that the mass storage device is active;
• and means for illuminating the rebuild indicator for the mass storage device when either the combination of the data received on the first interface and the data received on the second interface indicates that the mass storage device is being rebuilt, wherein the first interface, second interface, means for illuminating the activity indicator, and means for illuminating the rebuild indicator are configured on a single storage backplane;
• and further comprising a third interface configured to receive an activity signal from the mass storage device, and wherein the means for illuminating the activity indicator comprises means for illuminating the activity indicator for the mass storage device when either the data received on the first interface, the data received on the second interface, or the activity signal received on the third interface indicates that the mass storage device is active.

A non-transitory computer-readable medium having executable instructions stored thereon which, when executed, cause a processor to:

• receive data on a first serial general purpose input/output (SGPIO) interface;
• receive data on a second SGPIO interface;
• cause an activity indicator for the mass storage device to be illuminated when either the data received on the first SGPIO interface or the data received on the second SGPIO interface indicates that the mass storage device is active;
• and cause a rebuild indicator for the mass storage device to be illuminated when the data received on the first SGPIO interface and the data received on the second SGPIO interface indicates that the mass storage device is being rebuilt;
• and to receive the activity signal directly from the mass storage device, and wherein causing an activity indicator for the mass storage device to be illuminated comprises causing the activity indicator for the mass storage device to be illuminated when either the data received on the first SGPIO interface, the data received on the second SGPIO interface, or the activity signal indicates that the mass storage device is active.