Chapter 2 Install the Hardware48 Storage Center SC8000 Controller Deployment GuideInstall Drives in SC280 EnclosuresThe SC280 enclosure supports up to 84 3.5‐inch hard drives installed in two drawers withinthe enclosure. Hard drives connect to the backplane using Disk Drive in Carrier (DDIC)hard drive carriers.Installing DrivesFollow these requirements when installing drives in the enclosure. Any row with drives installed must be filled entirely (14 drives). The minimum number of drives in an enclosure is 14 (one row). The number of populated rows between drawers must not differ by more than one. Populate rows beginning at the front of the enclosure and moving to the rear.For a new installation, follow these recommendations for populating 42‐drive enclosures. 14 drives in top drawer, front row 14 drives in bottom drawer, front row 14 drives in top drawer, middle rowSteps1 Lower the DDIC into the slot.2 Push and hold down the DDIC and slide it toward the back of the enclosure until theDDIC latches to the backplane.3 After all drives are installed, close the drawer.4 When the enclosure is turned on, make sure that the drive LEDs are not lit, indicatingnormal conditions.Caution: If the enclosure operates for too long (depending on altitude) with drivedrawers open, the enclosure can overheat, causing potential drive failure and dataloss. Such use may invalidate the warranty.Caution: Removing a drive from the DDIC can damage the DDIC. Do not removedrives from DDICs.Caution: When the enclosure turns off, the disks continue to spin after losingpower. To avoid damage to the disk, wait for the disk to stop spinning(approximately 10 seconds after shut down) before pulling the disk from theenclosure.