From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Janusz Wiszniowski >I have problem with reading data from IBM 3581 LTO II autoloader. The >backups (write operations) to tapes works always ok, but the problem arise >when I try to restore some data from tapes. I receive: > >ANR8302E I/O error on drive DRIVE1 (mt6.0.0.4) (OP=READ, Error Number=1235, >CC=0, KEY=0B, ASC=4B, ASCQ=00,
>From Richard Sims' web site http://people.bu.edu/rbs/ADSM.QuickFacts (a site that should *always* be consulted before you post a question on the list): ANR8302E I/O error on drive TAPE0 (MT0.0.0.2) (OP=READ, Error Number=1235, CC=0, KEY=2B, ASC=4B, ASCQ=00, ... ASC=4B+ASCQ=00 is a Data Phase Error, meaning that an error occurred during the Data Phase of a SCSI operation, as when a SCSI target device receives a zero-length data frame, or too many parity errors have occurred during the Data-In and Data-Out phases of an operation. Could be caused by a bad (SCSI) cable (closely inspect the pins; try a different cable) or faulty SCSI termination or exceeding the SCSI chain length. If possible, try another drive. If a dsmserv restore, assure that the device config you are using accurately describes the library and drives. The library/drive combination may be seldom-used equipment, or in questionable condition; initiate testing at the OS level, writing to a tape with a command like tar, then try to read the data back. If that works, try using a command like tapeutil to get raw data blocks off the tape that had an error. A failure there may point to the tape. For FibreChannel HBA in Windows, check the MAXSGLIST spec (MAXimumSGList parameter in the Windows registry). And, as always, assure that the drive has been cleaned. -- Mark Stapleton
