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TNS:could not resolve the connect identifier specified
Backtrace message unwound by exceptions
invalid identifier
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internal error
missing expression
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end-of-file on communication channel
TNS:listener unknown in connect descriptor
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invalid number
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resource busy and acquire with NOWAIT specified
error occurred at recursive SQL level string
ORACLE initialization or shutdown in progress
archiver error. Connect internal only, until freed
snapshot too old
unable to extend temp segment by string in tablespace
Credential retrieval failed
missing or invalid option
invalid username/password; logon denied
unable to create INITIAL extent for segment
out of process memory when trying to allocate string bytes
shared memory realm does not exist
cannot insert NULL
TNS:unable to connect to destination
remote database not found ora-02019
exception encountered: core dump
inconsistent datatypes
no data found
TNS:operation timed out
PL/SQL: could not find program
existing state of packages has been discarded
maximum number of processes exceeded
error signaled in parallel query server
ORACLE instance terminated. Disconnection forced
TNS:packet writer failure
see ORA-12699
missing right parenthesis
name is already used by an existing object
cannot identify/lock data file
invalid file operation
quoted string not properly terminated

RE: ORA-01115 IO error reading block from file string

Mercadante, Thomas F

2006-05-25

Replies:
ORA-01115 IO error reading block from file string

Donald,

 

I don’t have your hardware configuration, but I’ve seen errors like this on our platform (IBM AIX/IBM Shark San disk).  It happens with us when we are running an Rman backup to disk and the backup directory is full (not the same mount point as the file that is reported as being offline/unavailable).

 

Just a little oddity that we’ve experienced.

 

We ignore the error and make sure we have enough room for backups.

 

Tom

 


From: oracle-l-bounce@freelists.org [mailto:oracle-l-bounce@freelists.org] On Behalf Of Freeman, Donald
Sent: Thursday, May 25, 2006 9:34 AM
To: oracle-l@freelists.org
Subject: ORA-01115 IO error reading block from file string

 

We have started experiencing this error in the last few weeks and are trying to identify the cause.  We opened a ticket with Oracle and one with HP (SAN).I just checked the logs from the web servers and found this ORA-01115 error was logged by the web application 6 times yesterday between 2:49 and 3:10 PM.  We're not sure if it's both nodes or just one.  The last time it had been logged previously was 12/22/05.  Four of those times, it was the same file that our batch process had a problem with -- PARTIES_DATA01.dbf.  On the other 2 occasions, it was PARTIES_DATA02.dbf and LOCATION_DATA01.dbf. 

HP says the SAN is healthy, Windows hasn't logged any issues, and Oracle says it isn't their problem.  If anyone has a suggestion for diagnosing this, I'm all ears.

ORA-01115 IO error reading block from file string (block # string)
Cause:
The device on which the file resides is probably off line.
Action: Restore access to the device, then retry the operation.

 

Don Freeman
Database Administrator 1
Bureau of Information Technology
Pennsylvania Department of Health
(717) 703-5782