Some database parameters are marked as obsolete. These parameters have either been removed already or will be removed in one of the next database versions.
Name |
Old Names |
Marked as Deprecated Since Version |
Removed Since Version |
Description |
---|---|---|---|---|
DeprecatedParameter38 |
EnableSynchronousTaskIO _USE_IOPROCS_ONLY |
7.8 |
- |
YES: I/O operations are executed only by special I/O threads NO: The kernel decides whether a task executes an I/O operation itself or delegate the I/O operation to a special I/O thread |
- |
MaxVolumes MAXVOLUMES |
7.8 |
- |
Maximum number of data and log volumes, including mirrored volumes |
- |
MiniDumpType MINI_DUMP |
7.8 |
- |
Defines whether the system writes the memory dumps knlmini.dmp and srvmini.dmp (for postmortem debugging) and how much information these dumps contain |
- |
_BACKUP_HISTFILE |
7.7 |
7.7 |
Name of the history file for data and log backups |
- |
_BACKUP_MED_DEF |
7.7 |
7.7 |
Name of the file containing the definitions of the backup templates |
DeprecatedParameter22 |
_UNICODE |
7.7 |
- |
Defines whether the database system uses Unicode as the character set for the names of database objects in the database catalog |
DeprecatedParameter01 |
BACKUP_BLOCK_CNT |
7.7 |
- |
Block size used by the database system when writing backups to data carriers Only useful for tapes that have an optimal block size |
- |
ClusterCompressionThreshold |
7.7.06.04 7.7.04.27 7.8.00.04 |
- |
Minimum number of blocks in a cluster that is eligible for compression that needs to be reached before the database system starts compressing the cluster (in 1/1000 of the total block count) |
DeprecatedParameter13 |
EXPAND_COM_TRACE |
7.7 |
- |
Specifies whether memory space is reserved when COM trace files are created |
DeprecatedParameter29 |
USE_OPEN_DIRECT |
7.7 |
- |
Replaced by UseFilesystemCacheForVolume, see Support Database Parameters YES: the database system uses the O_DIRECT flag when opening volumes (if this flag is supported by the file system). You use this flat to configure that the operating system does not use a separate cache for I/O operations. Note that this flag is ignored for Linux kernel < 2.4.18.Changes only apply after restart |
Database Administration, Database Parameters