Vantec NST-640S3R-BK User Guide - Page 19

8.RAID Rebuild: RAID Rebuild RAID rebuild can only be performed under RAID 1(10), 3, and 5 configuration for HX4R. and RAID 1 only for the HX2R configuration. Please follow the following steps to start rebuilding. 1. Power off the NexStar HX4R / HX2R. 2. Remove failed hard drive. 3. Install a functional hard drive. 4. Turn on the power and the NexStar HX4R / HX2R will automatically start rebuilding. LED Configuration on Rebuild Process RAID 3/5: LED blinks irregularly RAID 1: HDD1 /2: LED1 /2 blinks irregularly on rebuild RAID 10: HDD 1/2: LED 1/2 blinks irregularly on rebuild HDD 3/4: LED 3/4 blinks irregularly on rebuild LED Activity Chart: this chart describe LED activity under RAID rebuild process Constant On Blinks Irregularly Operations HDD1 LED HDD2 LED HDD3 LED HDD4 LED RAID 3 RAID 5 HDD 1/2 RAID 10 HDD 3/4 Rebuild Complete (Online) Rebuild Complete (Offline) NOTE: 1. Rebuild speed around 250GB/HR 2. Anytime when a HDD failure is detected, the LED blinks at a constant pace. 3. Online: Power cable is connected to the device, USB or eSATA cable is connected to the computer. Offline: Only power cable is connected to the device. RAID Rebuild 17