5-7SATA Storage Enclosures (FS4100 and FS4500)SATA I/O Module ConfigurationThis section describes how to configure the two I/O modules.FS4100 I/O Module ConfigurationThe Adaptec FS4100 I/O module supports JBOD and does notrequire configuring.FS4500 I/O Module ConfigurationUse the Spheras RAIDWatch software application included onyour Adaptec Storage Enclosure CD to configure the AdaptecFS4500 I/O module. Refer to the Adaptec Storage Enclosure CD forsoftware documentation.Drive Carrier LEDsEach drive carrier has three LEDs that are visible from the front ofthe Storage Enclosure. See Drive Carrier LEDs on page 3-3 fordetailed information about LED functions.D7 a PartnerFailedPartner controller hasfailedPartner controlleroperatingproperlyD8-1 Cache/BBUFault■ Data in cache memory■ Cache memory failed■ Cache being held bybattery back-up■ Battery not capable ofsustaining memory■ Battery not presentBattery back-up iscapable ofsustainingmemory in case ofpower loss (has87% or moreoriginal chargecapacity)a In single controller configurations, this LED is not used.Table 5-4 FS4500 I/O Module LEDsLED Designation LED On LED Off