FXS dan FXO

FXS dan FXO
FXS –Foreign Exchange Station
1. Fungsinya sama seperti line extension pada PBX
2. Memberikan arus DC kepesawat telepon, membuat nada (dial, sibuk, dll)
3. FXS harus disambung ke peralatan FXO contohnya pesawat telpon
4. On-hook/Off-hook dikontrol oleh peralatan FXO

error ORA-00257

1. ERROR: ORA-00257
SQL> conn scott/tiger
ERROR:
ORA-00257: archiver error. Connect internal only, until freed.

2. shutdown database normal
SQL> shutdown;
Database closed.
Database dismounted.
ORACLE instance shut down.

error ORA-16014

error ORA-16014

1. error ORA-16014
SQL> startup;
ORACLE instance started.
Total System Global Area 1519898624 bytes
Fixed Size 2144624 bytes
Variable Size 872416912 bytes
Database Buffers 637534208 bytes
Redo Buffers 7802880 bytes
Database mounted.
ORA-16014: log 2 sequence# 2 not archived, no available destinations
ORA-00312: online log 2 thread 1: ‘/u02/perak/redo02.log’