NBU原机恢复归档日志报错ORA-19870 ORA-19507 ORA-27029 ORA-19511

现象

因数据挖掘的需求,需要恢复已经备份并且删除掉的归档日志,但是NBU恢复报错如下：

......
channel c3: starting archived log restore to default destination
channel c3: restoring archived log
archived log thread=1 sequence=344508
channel c3: restoring archived log
archived log thread=1 sequence=344509
channel c3: restoring archived log
archived log thread=1 sequence=344510
channel c3: reading from backup piece al_32828_1_1112792482
channel c4: ORA-19870: error while restoring backup piece al_32810_1_1112781656
ORA-19507: failed to retrieve sequential file, handle="al_32810_1_1112781656", parms=""
ORA-27029: skgfrtrv: sbtrestore returned error
ORA-19511: non RMAN, but media manager or vendor specific failure, error text:
   Failed to open backup file for restore.
......

原因&解决

客户端解析的主机名不一样
/usr/openv/netbackup/bin/bpclntcmd -pn
/usr/openv/netbackup/bin/bpclntcmd -self

修改/etc/hosts(我的问题是备份时主机名不带域名,恢复的时候带了域名)
清一下缓存 bpclntcmd -clear_host_cache
验证解析的主机名是否一致

ps:看了一下master的IP主机名解析,没有加带域名的主机名