Oracle Database Standard Edition (SE) 在備份恢復架構上有一項硬性限制:RMAN 僅允許分配一個 Channel,無法使用多 Channel 平行備份/還原。
Restrictions in "Standard Edition"
Rman channel allocation does not allow parallelism/having multiple channels allocated.
FILESPERSET、MAXPIECESIZE、使用壓縮備份集(AS COMPRESSED BACKUPSET)。嘗試在 SE 實例中執行 ALLOCATE CHANNEL ch1 TYPE DISK; ALLOCATE CHANNEL ch2 TYPE DISK; 會報錯 ORA-00230: operation not allowed: parallel RMAN not supported。