Hi Managers,
I have put patch kit 5 on couple of 4100s running DU 4.0B 
One of the system gives following error message while booting. 
                                     DDR: Invalid Database Header 
                                        DDR: Unable to access Device 
                                         _Information Database for GLOBALs 
                                         Error accessing DDR database - 
                                         _"defaults" used for SCSI device: 
                                          Vendor ID : DEC        Product ID: 
                                         _RZ28M    (C) DEC   Revision: 0616 
                                        DDR: Invalid Database Header 
                                        Error accessing DDR database - 
                                         _"defaults" used for SCSI device: 
                                          Vendor ID : DEC        Product ID: 
                                         _RZ1CB-CA (C) DEC   Revision: LYJ0 
                                        DDR: Invalid Database Header 
                                        Error accessing DDR database - 
                                         _"defaults" used for SCSI device: 
                                          Vendor ID : EXABYTE    Product ID: 
                                         _EXB-89008E000112   Revision: V37f 
                                        DDR: Invalid Database Header 
                                        Error accessing DDR database - 
                                         _"defaults" used for SCSI device: 
                                          Vendor ID : HP         Product ID: 
                                         _C1533A             Revision: A612 
We use Storage Works Raid system (mylex controller) 
There has not been any problem with any of the disk / data. 
Also, any type of access(read,write,rewind)  to the exabyte 8mm drive gives the console message  
Mar 27 19:24:36 psp02prd vmunix: [2/4/0] ctape_ioctl: unmapped scsi density code(0x27) - DDR entry needed
( DDR entry DOES exist in ddr.dbase for all the density codes)
But again all the operations(read,write,rew etc) are performed successfully. 
Should I reconstruct ddr.db using ddr_config ??? 
Thanks a lot in advance for any input.
Mukesh.
Received on Tue Mar 31 1998 - 00:08:58 NZST