HP ProLiant 1500 SMART-2DH Array Controller Reference Guide - Page 154

D-21 Auto Reliability Monitoring Auto reliability monitoring (ARM) is a background process that scans hard drives for bad sectors in fault-tolerant logical drives. ARM also verifies the consistency of parity data in drives with data guarding or distributed data guarding. This process assures that you can recover all data successfully if a drive failure occurs in the future. ARM operates only when you select RAID 1 , RAID 4, or RAID 5. Dynamic Sector Repairing Using the dynamic sector repairing process, the controller automatically remaps any sectors with media faults it detects either during normal operation or during auto reliability monitoring. Drive Parameter Tracking Drive parameter tracking monitors more than 15 drive operational parameters and functional tests. This includes parameters such as read, write, and seek errors, spin-up time, cable problems, and functional tests such as track-totrack seek time, one-third stroke, and full stroke seek time. Drive parameter tracking allows the SMART-2DH Controller to detect drive problems and predict drive failure before they actually occur. It also makes pre-failure warranty possible on Compaq disk drives. Drive Failure Alert Features Drive failure features produce various drive alerts or error messages depending on the Compaq server model. Refer to the documentation included with your server to determine what drive failure features are included on your server model. Other Compaq options such as Compaq Insight Manager and Compaq Server Manager/R provide additional drive failure features. See your Authorized Compaq Reseller for more information on these products. SMART-2DH Array Controller Reference Guide Writer: Pamela King Project: SMART-2DH Array Controller Reference Guide Comments: 295469-002 File Name: K-APPD.DOC Last Saved On: 2/27/98 12:06 PM COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED