Raid 1 array constantly needs to 'verify'

[JDoya]

Hello

I've set up a RAID 1 array and it was ok at first. However I am noticing now that every 2-3 weeks or so, it needs to verify the data. On a 1.5TB array this takes a long time and takes up a lot of resources. It's pretty fustrating and I'm not sure if it's the chipset that is causing the fault, or if its maybe the disks themselves that are causing the issue. Is there any way to determine which is the culprit? The logs from Intel are somewhat lacking in why the paticular failure occured just that it needs to 'verify'.

I recently rebuilt to Windows 7 but it's still happening. Ironically I went to Windows 7 from XP in some vain hope this would be fixed

Any help or assistance would be appreciated. I've attached the Intel Storage Matirix Report for reference

System Information

Kit Installed: 8.9.0.1023

Kit Install History: 8.9.0.1023, UninstallShell Version: 8.9.0.1023

OS Name: Microsoft Windows 7 Enterprise

OS Version: 6.1.7600 Build 7600

System Manufacturer: ASUSTeK Computer INC.

System Model: P5K-EProcessor: Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHzBIOS Version/Date: American Megatrends Inc. 0703 , 09/12/2007

Language: ENU

Intel RAID Controller: Intel(R) ICH8R/ICH9R/ICH10R/DO/PCH SATA RAID Controller

Number of Serial ATA ports: 6 RAID Option ROM Version: 7.5.0.1017Driver Version: 8.9.0.1023RAID Plug-In Version: 8.9.0.1023Language Resource Version of the RAID Plug-In: 8.9.0.1023Create Volume Wizard Version: 8.9.0.1023Language Resource Version of the Create Volume Wizard: 8.9.0.1023Create Volume from Existing Hard Drive Wizard Version: 8.9.0.1023Language Resource Version of the Create Volume from Existing Hard Drive Wizard: 8.9.0.1023Modify Volume Wizard Version: 8.9.0.1023Language Resource Version of the Modify Volume Wizard: 8.9.0.1023Delete Volume Wizard Version: 8.9.0.1023Language Resource Version of the Delete Volume Wizard: 8.9.0.1023ISDI Library Version: 8.9.0.1023Event Monitor User Notification Tool Version: 8.9.0.1023Language Resource Version of the Event Monitor User Notification Tool: 8.9.0.1023Event Monitor Version: 8.9.0.1023 Array_0000Status: InitializingHard Drive Data Cache Enabled: YesSize: 2794.5 GBFree Space: 0 GBNumber of Hard Drives: 2Hard Drive Member 1: ST31500341ASHard Drive Member 2: ST31500341ASNumber of Volumes: 1Volume Member 1: 15TBRAID1 15TBRAID1Status: Verifying and Repairing: 60% completeVerification Errors: No errors foundBlocks with Media Errors: No errors foundSystem Volume: NoVolume Write-Back Cache Enabled: YesRAID Level: RAID 1 (mirroring)Size: 1397.2 GBPhysical Sector Size: 512 BytesLogical Sector Size: 512 BytesNumber of Hard Drives: 2Hard Drive Member 1: ST31500341ASHard Drive Member 2: ST31500341ASParent Array: Array_0000 Hard Drive 0Usage: Array memberStatus: NormalDevice Port: 1Device Port Location: InternalCurrent Serial ATA Transfer Mode: Generation 2Model: ST31500341ASSerial Number: 9VS268PMFirmware: CC1HNative Command Queuing Support: YesHard Drive Data Cache Enabled: YesSize: 1397.2 GBPhysical Sector Size: 512 BytesLogical Sector Size: 512 BytesNumber of Volumes: 1Volume Member 1: 15TBRAID1Parent Array: Array_0000 Hard Drive 1Usage: Array memberStatus: NormalDevice Port: 2Device Port Location: InternalCurrent Serial ATA Transfer Mode: Generation 2Model: ST31500341ASSerial Number: 9VS268QPFirmware: CC1HNative Command Queuing Support: YesHard Drive Data Cache Enabled: YesSize: 1397.2 GBPhysical Sector Size: 512 BytesLogical Sector Size: 512 BytesNumber of Volumes: 1Volume Member 1: 15TBRAID1Parent Array: Array_0000