https://community.hpe.com/t5/disk-enclosures/array-accelerator-not-working/m-p/2525852#M1847 Try running the ACU, change the Accelerator Ratio from current settings to something else under Controller/Settings. Then save settings. Then go back and reset the Accelerator Ratio to its original setting and save settings again and exit the ACU. <BR /><BR />Have a nice day,<BR /><BR />Mike Mon, 07 May 2001 23:00:01 GMT Ayman Altounji 2001-05-07T23:00:01Z https://community.hpe.com/t5/disk-enclosures/array-accelerator-not-working/m-p/2525851#M1846 I just got a new Smart2DH Array Controller along with Proliant 1850R with SCSI-3 Drive Cage Option kit. The Smart-2DH controller is complaining that the there is a parity error in the Array accelerator and the accelerator is permanently disabled. I ran the Array Diagnostic Utility and it said warranty alert and Array Accelerator parity error:21903. <BR /> <BR />Is the array accelerator supposed to work on Proliant 1850R? If so, is it possible that my controller has a bad array accelerator? Is there any way to test this other than using ADU or ACU? Your pointers are greatly appreciated. Mon, 07 May 2001 23:00:00 GMT https://community.hpe.com/t5/disk-enclosures/array-accelerator-not-working/m-p/2525851#M1846 Ayman Altounji 2001-05-07T23:00:00Z https://community.hpe.com/t5/disk-enclosures/array-accelerator-not-working/m-p/2525852#M1847 Try running the ACU, change the Accelerator Ratio from current settings to something else under Controller/Settings. Then save settings. Then go back and reset the Accelerator Ratio to its original setting and save settings again and exit the ACU. <BR /><BR />Have a nice day,<BR /><BR />Mike Mon, 07 May 2001 23:00:01 GMT https://community.hpe.com/t5/disk-enclosures/array-accelerator-not-working/m-p/2525852#M1847 Ayman Altounji 2001-05-07T23:00:01Z