系统版本：HP-UX RX3600 B.11.31 U ia64 1297444375 unlimited-user license
数据库版本：11.2.0.3.0

rman报错信息：
Starting backup at 09-JUN-17
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=15 device type=DISK
channel ORA_DISK_1: starting datafile copy
input datafile file number=00005 name=/u02/rora_data_lv01
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of backup command on ORA_DISK_1 channel at 06/09/2017 11:34:38
ORA-19504: failed to create file "/pool2/bak/HTSIMIS_BASET_5.tf"
ORA-27054: NFS file system where the file is created or resides is not mounted with correct options
Additional information: 3
Additional information: 12

Recovery Manager complete.

nfs挂载命令：
mount -F nfs -o rw,bg,vers=3,proto=tcp,noac,hard,nointr,timeo=600,rsize=32768,wsize=32768,suid 192.168.0.48:/pool2 /pool2

解决方案：（需要重启数据库）
alter system set event='10298 trace name context forever, level 32'scope= spfile ;

hp-ux rman 使用nfs