https://community.hpe.com/t5/netservers/enable-write-back-cause-corruption-in-progress/m-p/2851591#M3792 Thank for your help; I think we have to replace the memory cache, because this problem occurred without power problems. Tue, 26 Nov 2002 18:14:45 GMT Luis_41 2002-11-26T18:14:45Z https://community.hpe.com/t5/netservers/enable-write-back-cause-corruption-in-progress/m-p/2851589#M3790 In a Lh6000 with SCO 5.0.6 running progress database, have had corruption in the data files, the CE replaces the 3 hard disk in raid 5 and upgrade the firmware of the Netraid Embeded , the problem appear apparently in SCO, I make some tests with Write trough enable in the Netraid , and the system was stable , but is so slow. Do you have more information related to this issue. Mon, 25 Nov 2002 18:05:47 GMT https://community.hpe.com/t5/netservers/enable-write-back-cause-corruption-in-progress/m-p/2851589#M3790 Luis_41 2002-11-25T18:05:47Z https://community.hpe.com/t5/netservers/enable-write-back-cause-corruption-in-progress/m-p/2851590#M3791 hi<BR />write trought write directly to the disk, write back write store data in the metraid cache.<BR />there is a battery option that you can add to the netraid in order to backup the data in the cache if power fail, preventing to loose data.<BR />If you already have the battery and didn't have power failure, the cache memory may need to be replaced.<BR />marino Tue, 26 Nov 2002 09:48:53 GMT https://community.hpe.com/t5/netservers/enable-write-back-cause-corruption-in-progress/m-p/2851590#M3791 Marino Meloni_1 2002-11-26T09:48:53Z https://community.hpe.com/t5/netservers/enable-write-back-cause-corruption-in-progress/m-p/2851591#M3792 Thank for your help; I think we have to replace the memory cache, because this problem occurred without power problems. Tue, 26 Nov 2002 18:14:45 GMT https://community.hpe.com/t5/netservers/enable-write-back-cause-corruption-in-progress/m-p/2851591#M3792 Luis_41 2002-11-26T18:14:45Z