networker备份错误：Server is disabled: Install base enabler (0:5:0)
20070810某客户现场，查看备份情况时，发现7月20日备份已经停了，用的是networker备份产品，手工运行rman备份脚本，
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of backup command on ch00 channel at 08/10/2007 16:34:29
ORA-19506: failed to create sequential file, name="/full_PICC_akip21gk_1_1", parms=""
ORA-27028: skgfqcre: sbtbackup returned error
ORA-19511: Error received from media manager layer, error text:
The call to nsr_start() failed with the message:
Server is disabled: Install base enabler (0:5:0)
上网上查找该错误，发现是由于liscense过期造成的，原来系统工程师安装完后忘记把liscense加上了。
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