what's the exact meaning of those messages?

From: Jim <accessbymail_at_21cn.com>
Date: Sun, 29 Dec 2002 23:33:37 -0800
Message-ID: <F001.0052400A.20021229233337@fatcity.com>

Hi,
I found the following message from the alert.log:

Sun Dec 29 22:35:42 2002
ARC0: Beginning to archive log# 3 seq# 126 ARC0: Failed to archive log# 3 seq# 126
Sun Dec 29 22:35:42 2002
ARCH: Completed archiving log# 3 seq# 126

It seemed the ARC didn't work in the begining of archive, but worked finally after a while, I got lots of those messages from alert.log file. what's the exact meaning of those messages? My Oracle is 8.1.7.3.0. and OS is aix 5.1

Thanks in advance.  

¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡Jim
¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡accessbymail_at_21cn.com
¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡2002-12-30

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Author: Jim
  INET: accessbymail_at_21cn.com

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