Oracleクライアントのセキュリティが低いため、SCOのバックアッププロセスでRMAN機能が失敗します

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環境

SnapCenter Plug-in for Oracle（SCO）：4.7P1まで
Oracleバージョン11.2、12.1、12.2、18c、19c、21c（2021年7月パッチ適用済み

問題

アーカイブログバックアップで保持を実行すると、RMAN削除要求時に次のエラーが表示されます。

ORACLE-00101: Error executing RMAN command: [DELETE NOPROMPT ARCHIVELOG UNTIL TIME 'SYSDATE-4.0' LIKE 'ARCHIVE_LOG_PATH/%';].  The command returned:
 RMAN-00571: ===========================================================
 RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
 RMAN-00571: ===========================================================
 ORA-12269: client uses weak encryption/crypto-checksumming version
 RMAN-00571: ===========================================================
 RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
 RMAN-00571: ===========================================================
 RMAN-03002: failure of delete command at DATE TIME
 RMAN-06171: not connected to target database

または（弱い暗号メッセージの配置が異なることに注意してください）。

ORACLE-00101: Error executing RMAN command: [DELETE NOPROMPT ARCHIVELOG UNTIL TIME 'SYSDATE-4.0' LIKE 'ARCHIVE_LOG_PATH/%';].  The command returned:

RMAN-00571: ===========================================================
 RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
 RMAN-00571: ===========================================================

RMAN-03002: failure of delete command at DATE TIME
 RMAN-12001: could not open channel ORA_DISK_1

RMAN-10008: could not create channel context

RMAN-10003: unable to connect to the target database

ORA-12269: client uses weak encryption/crypto-checksumming version