Explanation of Class, Severity, and Locus error messages

  • 10057491
  • NOVL28734
  • 08-Oct-2000
  • 09-Oct-2002

Archived Content: This information is no longer maintained and is provided 'as is' for your convenience.


NetWare 4.1

Novell NetWare 4.11

Novell NetWare 5.0

Novell NetWare 5.1

 intraNetWare 4.11

Formerly KB 2945305


Explanation of Class, Severity, and Locus error messages 

Customers receive an error message similar to the following:
11-25-98 12:33:15 pm: Server-4.11-4400
Severity = 0 Locus = 2 Class = 19


Here is a list of what this message would mean:


0: Informational
Provides a way to track noncritical events such as recording a message in SYS$LOG.ERR when a counter threshold is reached and rolls over to zero.

1: Warning
A message that indicates a potential problem or configuration error that does not cause damage. Example: Low on Memory.

2: Recoverable
A message indicating that a mirror error has occurred and the OS can deal with the problem or can provide a workaround. A good example is Hot Fix.

3: Critical
A message indicating that the disk mirror has failed and partitions are out of sync, or that a fix-up was attempted and failed. It can also indicate a loss of functionality as when ABEND recovery suspends a process.

4: Fatal
A message indicating that resources are low and the server could shut down, or that the process running failed and a shut down has occurred. A good example is when a disk drive is deactivated because of driver unloading.

5: Operation Aborted
A message indicating that the operation cannot complete. A good example is when the volume is out of disk space.

6: No NOS Unrecoverable
A message indicating that an operation cannot complete but that it will not affect the OS. A good example is when a compressed file is corrupt and unrecoverable.


0: Unknown
Unable to determine the location.

1: Memory
Problem related to memory. Example: memory protection or out of memory.

2: File System
Problems related to files. Example: compression or file I/O (input/output).

3: Disks
Problems related to disk storage devices. Example: disks, tapes, volume dismounts, removable media, disk hotfix, and disk mirroring.

4: LAN Boards
Problems related to LAN boards. Example: LAN drivers, Note: not used by the OS.

Problems related to communication stacks. Example: TCPIP, IPX, and SPX. Note: not used by the OS.

No entry for the value 6.

7: TTS
Problems related only to transaction tracking. Example: volume dismount, TTS log, and TTS memory allocation.

8: Bindery
Problems related only to user accounts and logins. Example: accounts being deleted and logins disabled or enabled.

9: Station
Problems related only to connections and remote console. Example: connections cleared and remote console access.

10: Router
Problems related to the internal router. Example: routing conflicts and invalid network or internal IPX addresses.

11: Locks
Problems related to open files and open file locks. Example: too many open files.

12: Kernel
Problems related to thread allocation and scheduling.

13: UPS
Defined but not used by the OS, can be used by other NLMs. Service Protocol NCP, IPX packet related issues. Example: IPX incomplete packet.

SFTIII related issues. Example: MSL board establishing a connection.

15: Resource Tracking
Problems related to tracking OS resources. Example: memory allocation for NLMs.

16: NLM
Only used once for command problems at the server console.

17: OS Information
Used in many areas throughout the OS. Example: ABEND recovery.

18: Cache
Problems related to cache memory. Example: cache buffers or out of memory.

19: Domain
Defined but not used by the OS.


0: Class Unknown
1: Out of Resources
2: Temporary Situation
3: Authorization Failure
4: Internal Error
5: Hardware Failure
6: System Failure
7: Request Error
8: Not Found
9: Bad Format
10: Locked
11: Media Failure
12: Item Exists
13: Station Failure
14: Limit Exceeded
15: Configuration Error
16: Limit Almost Exceeded
17: Security Audit Information
18: Disk Information
19: General Information
20: File Compression
21: Protection Violation

So in the example shown at the beginning of this TID, "Severity = 0, Locus = 2, Class = 19", this means that the message was informational and that the event location occurred within the file system with a classification of general information.

Some system message will contain something similar to the following:  "The NETSHLD.NLM has registered a file system hook (5)".

The following table will help identify what this message refers to.


0: Erase File
1: Open File
2: Create File
3: Create and Open File
4: Rename EntryClose File
5: Create Directory
6: Delete Directory
7: Modify Directory Entry
8: Salvage File
9: Purge File
10: Rename Name Space Entry
11: Salvage File Purge File
12: Create a File or Directory
13: Rename a File or Directory
14: Erase a File or Directory
15: Modify DOS Information
16: Modify Name Space Specific Information
17: Initialize File Search
18: Continue File Search
19: Search Set
20: Directory Search.