Redo log problem..pls its urgent.

Hi

I have just got the following problem
it displays in DOS mode ..on oracle server running win2k ora9i
__________________________________________________________________
warning-the following error occured during ORACLE redo log archival :
ORACLE instance xxxxx -can not allocate log ,archival required
-------------------------------------------------
press ENTER to acknowledge message.



and when pressed enter ..application hanged.

pls treat it urgent as m not in a position what to do..


thx....thx.

check your disk space.

brother,space is not a problem.

suggest something other.

what the error is telling you is that the redo log is full and it needs to write the information to the archive log but it can't. So, that means one of two problems.
1. You don't have enough disk space on the drive for the archive log to be created.
2. Oracle doesn't have permissions to write to the drive specified.

ps. how many redo logs do you have?

Good Lord I'm messing up.
Ignore the above. Your redo logs...how many and how big are they? Check you alert.log and see how often you're switching redo logs. They're probably too small and not enough. The archiver can't keep up. Also check your log_archive settings in the init.ora to see that it is set to true and if it is did you do a startup mount archive?

What OracleDoc said is correct. BTW can you post the exact error codes from alert.log file?

check
sql>archive log list;
or
is your redo log file and archive log file is it in the same disk? If so change the disk
or
how many log groups you have? If it's less increase the number of groups.
or
if your log member size is less you can increase.
or
what's your log_buffer size? If it's very big might make your dbwr slow which intern could affect arch and lgwr

thx a lot everybody especially oraceldoc sanjay n shans

problem was with archival mode..it was disabled automatically.

thx again.

cheers...seems have to go for oracle permanently.boss pressuries wot can i do too.