Dell PowerVault MD3200 Owner's Manual - Page 37

Table 4-1. RAID Controller Physical Disk States (continued) Status Pending Failure Offline Identify N/A Mode Description Physical Disk Status LED Assigned, Unassigned, Hot Spare in use, or Hot Spare standby A Self-Monitoring Analysis and Flashing Green Reporting Technology (SMART) error (500 ms), Amber has been detected on the physical disk (500 ms), and off in the indicated slot. (1000ms) Not applicable The physical disk has either been spun Flashing Green down or had a rebuild aborted by user (3000 ms), Amber request. (3000 ms), and off(3000ms) Assigned, Unassigned, Hot Spare in use, or Hot Spare standby The physical disk is being identified. Green flashing (250 ms) N/A The indicated slot is empty, or the array cannot detect the physical disk. If a disk drive rebuild fails because of a source drive failure or because the drive is too small, the MDSM reports a failure of the physical disk even though the LED state on the drive indicates the rebuild was aborted (green for 3 seconds, amber for 3 seconds, then off for 3 seconds). Self-Monitoring Analysis and Reporting Technology SMART monitors the internal performance of all physical disk components to detect faults indicating the potential for physical disk failure. SMART uses this information to report whether failure is imminent so that a physical disk can be replaced before failure occurs. The storage array monitors all attached drives and notifies you when a predicted failure is reported by a physical disk. Virtual Disks and Disk Groups When configuring a storage array, you must: 1 Organize the physical disks into disk groups. 2 Create virtual disks within these disk groups. Planning: MD3200 Series Storage Array Terms and Concepts 37