从磁带库中利用RMAN还原数据库，出现如下错误：

channel c1: starting datafile backupset restore
channel c1: specifying datafile(s) to restore from backup set
restoring datafile 00009 to /oracle/data/rdb_erp_data_04.dbf
restoring datafile 00014 to /oracle/data/rdb_erp_data_09.dbf
restoring datafile 00020 to /oracle/data/rdb_erp_data_25.dbf
restoring datafile 00026 to /oracle/data/rdb_erp_data_31.dbf
restoring datafile 00032 to /oracle/data/rdb_erp_data_37.dbf
restoring datafile 00038 to /oracle/data/rdb_erp_data_43.dbf
restoring datafile 00045 to /oracle/data/rdb_erp_data_11.dbf
restoring datafile 00051 to /oracle/data/rdb_erp_data_17.dbf
restoring datafile 00054 to /oracle/data/rdb_erp_data_20.dbf
channel c1: reading from backup piece Full_ERPDB_10_20_j2mphnpg_1_1_764993328.dbf
ORA-27192: skgfcls: sbtclose2 returned error - failed to close file
ORA-19511: Error received from media manager layer, error text:
   ANS1235E (RC-71)  An unknown system error has occurred from which TSM cannot recover.
ORA-19870: error reading backup piece Full_ERPDB_10_20_j2mphnpg_1_1_764993328.dbf
ORA-19501: read error on file "Full_ERPDB_10_20_j2mphnpg_1_1_764993328.dbf", blockno 222682113 (blocksize=512)
ORA-27190: skgfrd: sbtread2 returned erro

解决方法：

配置TSM server中的参数CommTimeOut 、IdleTimeOut  与TSM client上的/usr/tivoli/tsm/StorageAgent/bin/dsmsta.opt文件中的参数CommTimeOut 、IdleTimeOut  的值相同。