Files would be skipped from the backup. Convert unmappable characters File not found errors in the backup logs.
(Last modified: 19Sep2005)
This document (10097645) is provided subject to the disclaimer at the end of this document.
fact
NetWare 6.5 sp2
NetWare 6.5 sp3
NetWare 6.5 sp4
Tape backup software
Unicode UTF8 support
symptom
Files would be skipped from the backup. Convert unmappable characters File not found errors in the backup logs.
tsafs /(no)ConvertUnmappableChars
cause
In NSS, the file names are stored in Unicode format. SMS (Storage Management Services) uses the unicode names during backup and restore for the NSS file system to avoid conversion of names and hence the loss in certain character conversions.
fix
Startup Switch Name:
tsafs /NoConvertUnMappableChars
How to use
The name of the switch is ConvertUnMappableChars. By default this switch will be set to TRUE, so that normal backups and restores will not be affected. When this switch is set to FALSE, TSAFS will re-try to access the same file by ignoring the mapping algorithm for converting the unmappable characters.
load tsafs /noConvertUnMappableChars to disable the default mapping. This is a load time parameter.
Logging in tsafs can be used to determine if this problem is happening. Backing up just a few files that have the problem would be sufficient. Otherwise the tsadbg.log file can grow to a very large size resulting in low disk space.
To enable tsafs logging:
tsafs /smsdebug=fffffffc /smsdebug2=fffffffc
To turn off the logging:
tsafs /smsdebug=0 /smsdebug2=0
This will create the sys:system\tsa\tsadbg.log file.
The real solution however, needs to come from the tape software vendor. Utf8 unicode support needs to be added to the tape software. This load line parameter is a potential workaround.
document
Document Title: | Files would be skipped from the backup. Convert unmappable characters File not found errors in the backup logs. |
Document ID: | 10097645 |
Solution ID: | NOVL102059 |
Creation Date: | 09May2005 |
Modified Date: | 19Sep2005 |
Novell Product Class: | Netware |
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