RMAN备份报错：RMAN-03009 ORA-19554

[zhouchen9090]

RMAN> RUN
2> {
3> allocate channel ch1 device type sbt maxpiecesize=30G PARMS="BLKSIZE=262144,
SBT_LIBRARY=C:\Program Files\orasbt.dll";
4> send 'ENV=(CONNECT_TAG=ORCL)';
5> backup incremental level 0 database format 'ORDB_%d_%s_%p_%t' tag '2019_03_15
_11_43_21';
6> release channel ch1;
7> };

释放的通道: ORA_DISK_1
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: allocate 命令 (ch1 通道上, 在 03/15/2019 16:19:23 上) 失败
ORA-19554: 配置设备时出错, 设备类型: SBT_TAPE, 设备名称:
ORA-27209: PARMS 语法错误 - 关键字未知或没有 =

RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-00558: 分析输入命令时出错
RMAN-01009: 语法错误: 找到 ";": 应为: "advise, allocate, alter, backup, @, catal
og, change, configure, connect, convert, copy, create, crosscheck, delete, drop,
 duplicate, exit, flashback, grant, host, import, list, mount, open, print, quit
, recover, register, release, repair, replace, report, reset, restore, resync, r
evoke, run, send, set, show, shutdown, spool, sql, startup, switch, transport, u
nregister, upgrade, validate, {, " 中的一个
RMAN-01007: 在第 0 行第 2 列, 文件: standard input

有大神帮忙看下么？

[卖水果的net]

allocate channel ch1 device type sbt 换成 allocate channel ch1 device type 'sbt' 或 allocate channel ch1 device type ‘sbt_tape'