Advanced Settings

Owned by KrupeshD (Deactivated)
Last updated: Feb 08, 2015 by Anton Els (Deactivated)
14 min read
Variable NameMeaning
SUCCESS_MAILTOThis is used to separate the success emails from the failure emails. If set, then all successful Dbvisit Standby emails will be sent to this email address. Failure or unsuccessful emails will be sent to the email address specified by ADMINS. If not set, then all emails will go to ADMINS.
Example:
    SUCCESS_MAILTO=success@mycompany.com
DB_CONNECTION_MODEDetermines the type of connection Dbvisit Standby makes to the database on the primary server.
Values are dedicated or shared.
Dedicated is the default.
- Dedicated 
By default Dbvisit Standby connects with the dedicated connection mode. The dedicated connection mode initiates a database connection each time information is requested from the database. The connection is closed after each request.
- Shared
A database connection is opened once at the start of Dbvisit Standby. This connection is used (shared) for all information requested from the database.  At the end of Dbvisit Standby processing, the connection is closed.
If the time taken to establish a database connection is too long, Dbvisit Standby may be optimised to improve performance by setting DB_CONNECTION_MODE = shared. The connection to the database is then only made once.
If you are not sure set to dedicated.
Example:
DB_CONNECTION_MODE = shared
DB_CONNECTION_MODE_DRDetermines the type of connection Dbvisit Standby makes to the database on the standby server.
Values are dedicated or shared.
Dedicated is the default.
- Dedicated 
By default Dbvisit Standby connects with the dedicated connection mode. The dedicated connection mode initiates a database connection each time information is requested from the database. The connection is closed after each request.
- Shared
A database connection is opened once at the start of Dbvisit Standby. This connection is used (shared) for all information requested from the database.  At the end of Dbvisit Standby processing, the connection is closed.
If the time taken to establish a database connection is too long, Dbvisit Standby may be optimised to improve performance by setting DB_CONNECTION_MODE_DR = shared. The connection to the database is then only made once.
If you are not sure set to dedicated.
Example:
DB_CONNECTION_MODE_DR = shared
IGNORE_ARCH_HISTDefault value: No
Possible values: Yes, No
Yes = Use Dbvisit Standby own internal mechanism to find the next available log to transfer.
No = Use Oracle controlfile information to find the next available log file. If this information is no longer available in the controlfile, default to using Dbvisit Standby’s own internal mechanism.
If you are not sure, set to No.
During initial Dbvisit Standby testing, setting this to Yes is useful, as the archive log file to transfer to the standby database is not always easily available in Oracle, especially if there has been a network outage and the standby database has not been updated for a while.
Example:
    IGNORE_ARCH_HIST=No
USE_STORE_ARCH_SEQGraceful Switchover only
Set to Yes if during initial Graceful Switchover testing Oracle cannot find new archives to recover database.
Possible values: No, Yes
Example:
    USE_STORE_ARCH_SEQ=No
FLASH_ARCH_DIRNAMEName of the directory used by Oracle for flash_recovery area for archive logs.
Default value: archivelog
Example:
    FLASH_ARCH_DIRNAME=archivelog
FLASH_DIR_NUMHow many days to go back to look for archive logs in flash recovery area. Each day will have a new directory in the flash recovery area.
Default value: 40
Example:
    FLASH_DIR_NUM=40
FLASH_DIR_FORMATFormat of the archive log directory when using flash recovery area. Standard a directory will be created for every day to hold the archives. This variable dictates the date format of the day directory.
Default value: YYYY_MM_DD
Example:
    FLASH_DIR_FORMAT=YYYY_MM_DD
FORCE_FLASH_AREAForce the use of the flash_area or DB_RECOVERY_FILE area. Only necessary when Dbvisit Standby does not recognize a flash area is in use.  
Yes    = Force flash area.
No     = Let Dbvisit Standby determine to use flash area or not.
Ignore = Ignore flash area when Dbvisit Standby has detected flash area.
Example:
    FORCE_FLASH_AREA=No
FLASH_ARCHIVE_LOG_FORMATDefault log_archive_format for when flash area is being used. 
The log_archive_format specified in v$parameter is ignored and a default is being used. This parameter allows tuning off the default parameter when Dbvisit Standby is not able to determine the default parameter. 
Default value: *_%t_%s_%r.arc
Example:
    FLASH_ARCHIVE_LOG_FORMAT=*_%t_%s_%r.arc
ARCHLOG_PREFIXThe archive log may be renamed by another process or in some cases Oracle prefixes the archive with the word "arch". If this happens, Dbvisit Standby may not be able to identify the archive log. Setting this parameter ensures that Dbvisit Standby can identify the archive log name.
Default value: arch
Example:
    ARCHLOG_PREFIX=arch
RESYNCH_SEQ_OFFSETThis determines the archive log sequence offset when Dbvisit Standby resynchs with the standby database. A value of 1, means the standby sequence will be offset with -1 and the first sequence is resent.
Default value: 1
Example:
    RESYNCH_SEQ_OFFSET=1
ALERT_ON_WARNINGNormally Dbvisit Standby will only alert on errors and then stop processing. Dbvisit Standby will not alert on warnings. 
Possible values: No, Yes
Yes = Dbvisit Standby will alert on warnings and stop processing. 
No = Dbvisit Standby will alert on errors only and stop processing. Warnings will be displayed in the Dbvisit Standby log file.
Default value: No
Example:
    ALERT_ON_WARNING = No
IGNORE_RESETLOG_IDIgnore the %r parameter in the log_archive_format. This may be used if Dbvisit Standby fails to recognize the log archive format, or Dbvisit Standby is unable to obtain the Resetlogs Id.
Possible values: Yes, No
Default value: No.
Example:
    IGNORE_RESETLOG_ID = No
THREAD_SOURCEIf set to Yes, the THREAD number from the instance is obtained to determine the next archive to send. This may be set to Yes if Dbvisit Standby fails to recognize the archive log sequence. 
Default value: No 
Possible values: Yes, No
For RAC this is always set to Yes.
Example:
    THREAD_SOURCE=No
THREAD_DESTIf set to Yes, the THREAD number from the instance is obtained to determine the next archive to apply. This may be set to Yes if Dbvisit Standby fails to recognize the archive log sequence. For RAC this is always set to Yes.
Default value: No
Possible values: Yes, No
Example:
    THREAD_DEST=No
SHOW_TRACEFILE_NAMEDetermines when to show the tracefile name. 
Possible values: Yes, No  
Yes = Will show tracefile name in alerts, errors and success emails.
No  = Will show tracefile name in alerts and errors.
Default value: No
Example:
    SHOW_TRACEFILE_NAME=No
SHOW_TIME_IN_TRACEShows the timestamp in the trace file. There is no significant overhead in displaying the timestamp in the trace file.
Possible values: Yes, No
Yes = Will show current timestamp on every line in tracefile. 
No = Will not show timestamp in tracefile.
Default value: Yes
Example:
    SHOW_TIME_IN_TRACE=Yes
LOG_SWITCH_WAIT_IN_SECWait in seconds to allow log switch to occur. If it is found that the archives are not yet completely written to when Dbvisit Standby tries to transfer them to the standby server, then this parameter may be increased. 
If Oracle has not completed the log switch before Dbvisit Standby attempts to compress and transfer the logs, Dbvisit Standby will raise an error message.
Default value: 3
Example:
    LOG_SWITCH_WAIT_IN_SEC=3
LD_LIBRARY_PATHSets the library path. This is needed for some versions of Oracle. Not needed for Windows. Do not include the ORACLE_HOME in the path. This will be done automatically.
Default value: none
Example:
    LD_LIBRARY_PATH=/usr/dt/lib;/usr/openwin/lib
FORCE_SYSDBADetermines how Dbvisit Standby will connect to the database to perform its actions.
Possible values: Yes, No
Yes = Dbvisit Standby will connect as sysdba. The DBUSER schema will not be used to connect to the database,
No = Dbvisit Standby will connect with Dbvisit Standby database repository (DDR) user.
Dbvisit Standby will always connect to the database as sysdba to stop and start the database and to get the status of the database. Dbvisit Standby will always connect to the standby database with sysdba.
Default value: No
Example:
    FORCE_SYSDBA=No
ALT_ARCH_LOCATIONThis may be added if an alternate LOG_ARCHIVE_DEST is required. Standard, Dbvisit Standby uses the Oracle LOG_ARCHIVE_DEST parameters to determine the location of the archive log files.
If ALT_ARCH_LOCATION is set, then a process must be in place to copy the archive log files from the default LOG_ARCHIVE_DEST to the alternate location, otherwise Dbvisit Standby will not be able to find the archive log files.
Default value: None
Example:
    ALT_ARCH_LOCATION=/oracle/oraarch/altlocation/
    ALT_ARCH_LOCATION=c:\oracle\oraarch\altlocation\
SEND_MAIL_FLAGDescription: Determines if Dbvisit Standby will use email for alerting.
SEND_MAIL_FLAG_DRDefault value: Yes
 Possible values: Yes, No
 Yes = Dbvisit Standby will email.
 No = Dbvisit Standby will NOT email.
 SEND_MAIL_FLAG is for both primary server and standby servers. 
 SEND_MAIL_FLAG_DR is only for the standby server.
 If SEND_MAIL_FLAG_DR is not set then SEND_MAIL_FLAG will apply to both primary and standby servers.
 Warning: If set to No, Dbvisit Standby will not send any notification when an alert is triggered.
 Default value: Yes
 Example:
     SEND_MAIL_FLAG=Yes
     SEND_MAIL_FLAG_DR=No
SEND_HEARTBEATDetermines if a daily heart beat message is sent to ensure Dbvisit Standby is still scheduled. 
SEND_HEARTBEAT_DRPossible values: Yes, No
 Yes = Dbvisit Standby sends daily heartbeat email. 
 No = Dbvisit Standby will not send daily heartbeat email. 
 Warning: If set to No, you must have an alternative method to ensure Dbvisit Standby is processing is active.
 SEND_HEARTBEAT is used for the primary server.
 SEND_HEARTBEAT_DR is used for the standby server.
 Default value: Yes
 Example:
     SEND_HEARTBEAT=Yes
     SEND_HEARTBEAT_DR=No
LOGGING_LEVELDetermines the level of logging for the Dbvisit Standby log file.
Default value: all
The values are:
all = All messages will be logged.
important = Only important messages will be logged, the following messages will NOT be logged:
  - Log not found on standby database
  - Dbvisit Standby still running
   - Dbvisit Standby pre-processing completed
   - Dbvisit Standby post-processing completed
   - Schedular heartbeat message sent
   - Duplicate compressed file found
Example:
LOGGING_LEVEL = important
ARCH_BUSYName of lock file to indicate the archive file is in use.
Default value: archive_busy.lck
Example:
    ARCH_BUSY=archive_busy.lck
ARCH_NOT_THEREName of file to indicate the archive file is not found.
Default value: arch_not_there.lck
Example:
    ARCH_NOT_THERE=arch_not_there.lck
CHECKFOR_PREV_VERSIONDetermines if Dbvisit Standby will perform a check if the database configuration file if from a previous Dbvisit Standby version. Once the database configuration file is updated, this can be set to No. 
Possible values: Yes, No
Yes = Dbvisit Standby checks for previous database configuration files every time Dbvisit Standby is executed.
No = Dbvisit Standby will not perform the check.
Default value: Yes
Example:
    CHECKFOR_PREV_VERSION=Yes
COMPARE_CHECKSUMDetermines if Dbvisit Standby will perform a checksum and compare the checksum on the file that has been transferred. If the checksum is not the same, Dbvisit Standby will alert. 
Possible values: Yes, No
Yes = Dbvisit Standby will calculate checksum on the file being transferred and will alert if the transferred file  is not the same as the original file.  
No = Dbvisit Standby will not perform a checksum. It is not guaranteed that the transferred file will be the same as the original file.  
Default value: Yes
Example:
    COMPARE_CHECKSUM=Yes
REMOVE_TEMP_FILESDetermines if Dbvisit Standby temporary files should be deleted after Dbvisit Standby processing. 
Possible values: Yes, No
Yes = Dbvisit Standby temporary files will be deleted. 
No = Dbvisit Standby temporary files will NOT be deleted.
Default value: Yes
Example:
    REMOVE_TEMP_FILES=Yes
TRANSFER_RETRIESDetermines the number of retries when the checksum of the transferred log file does not match the original file. When the checksum does not match, the file will be transferred again. If the checksum does not match after TRANSFER_RETRIES attempts, an alert will be raised.
Default value: 2
Example:
    TRANSFER_RETRIES=2 
SYNCH_ENV_FILE_ONLYVariable SYNCH_DBVISIT_INSTALL=Yes must be set for this setting to be active.
Possible values: Yes, No
No = Complete Dbvisit Standby installation and configuration (DDC) file will be synchronised everytime Dbvisit Standby executes.
Yes = Only Dbvisit Standby database configurational (DDC) file will be synchronised everytime Dbvisit Standby executes. 
Note: The complete Dbvisit Standby installation can be synchronised with the dbvisit -c <DDC> command.
Example:
   SYNCH_ENV_FILE_ONLY=Yes
EMAIL_LOG_GAP_REPORTDetermines if the Dbvisit Standby log gap report will be emailed. When Dbvisit Standby is run with the inspect command (dbvisit -i) the Dbvisit Standby log gap report will be displayed. Setting this to Yes will email this report to the email address specified by ADMINS. The Dbvisit Standby log gap report will always be written to the Dbvisit Standby database repository (DDR).
Possible values: Yes, No
Yes = Email the Dbvisit Standby log gap report to the email address specified by ADMINS.
No = Do not email the Dbvisit Standby log gap report.
Default value: Yes
Example:
    EMAIL_LOG_GAP_REPORT=Yes
SEND_LOG_GAP_WITH_HEARTBEATPossible values: Yes, No
Yes = Include the Dbvisit Standby log gap report in the daily heartbeat email that is sent from the primary server.
No = Do not include the Dbvisit Standby log gap report in the daily heartbeat email.
Default value: No
Example:
    SEND_LOG_GAP_WITH_HEARTBEAT=Yes
HOSTNAME_CMDIf Dbvisit Standby is part of a cluster and a different hostname should be used instead of the regular hostname returned by the current server, then this variable can be used to specify a command to set the hostname for Dbvisit Standby. 
For example:
When Dbvisit Standby is used in a cluster and the virtual cluster name should be used instead of the physical hostname.
Sample:
HOSTNAME_CMD=/usr/local/bin/hostname.sh
If the HOSTNAME_CMD file is specified but does not exist on the server, then Dbvisit Standby ignores the HOSTNAME_CMD and uses the regular method to obtain the hostname of the server. This is useful if the standby server is a regular server and the default hostname is sufficient.
KEEP_ORIG_FILE_BEFORE_COMPRESSOnly applies if Dbvisit Standby internal compression method is used.              When set to yes, Dbvisit Standby will keep the original file as well as the compressed file after compression. If set to no, Dbvisit Standby will delete the original file after compression and keep the compressed file.
Sample:
KEEP_ORIG_FILE_BEFORE_COMPRESS=Yes
LOCK_MAX_TIME_SECIf Dbvisit Standby detects a lock on a file that it is trying to process, this parameter specifies the maximum wait in seconds Dbvisit Standby will retry the lock.
If the file is still locked after LOCK_MAX_TIME_SEC, then Dbvisit Standby will raise an alert.
Sample:
LOCK_MAX_TIME_SEC=10
LOCK_RETRY_TIMEOUT_MILLISECIf Dbvisit Standby detects a lock on a file that it is trying to process, this parameter specifies the wait in milliseconds before Dbvisit Standby will attempt to access the file again. On some platforms the minimum timeout time may be 1 second.
Sample:
LOCK_RETRY_TIMEOUT_MILLISEC=500
NUM_TRACE_TO_KEEPSpecifies the number of Dbvisit Standby trace files to keep. Trace files are generated every time Dbvisit Standby is executed. Trace files are only used for Dbvisit support. Dbvisit Standby will delete trace files greater than this number. Deletes oldest trace file first.  Works in conjunction with DAYS_TO_KEEP_TRACE.
Least restrictive setting applies between DAYS_TO_KEEP_TRACE and NUM_TRACE_TO_KEEP. To turn off, set to 0.
Sample:
NUM_TRACE_TO_KEEP=100
DAYS_TO_KEEP_TRACESpecifies the number of days to keep Dbvisit Standby trace files. Trace files are generated every time Dbvisit Standby is executed. Trace files are only used for Dbvisit Standby support. Dbvisit Standby will delete trace files that are older. Works in conjunction with NUM_TRACE_TO_KEEP. Least restrictive setting applies between DAYS_TO_KEEP_TRACE and NUM_TRACE_TO_KEEP. To turn off, set to 0.
Sample:
DAYS_TO_KEEP_TRACE=10
SSH_PORTUsed to specify a different ssh port to the default 22.
If no value is supplied then the default of 22 is used.
Sample:
SSH_PORT=2200
CP_OPTIONSAllow for different secure copy (scp) options.
For example (Unix/Linux):
    -l limit
Limits the used bandwidth, specified in Kbit/s
See man scp in Unix and Linux for scp options.
 See sftpc on Windows for scp options.
Sample:
CP_OPTIONS=-l 100
RSH_OPTIONSAllow for different secure shell (ssh) options.
For example (Unix/Linux):
    -l login_name
Specifies the user to log in as on the remote machine.  
See man ssh in Unix and Linux for ssh options.
See sexec on Windows for ssh options.
Sample:
RSH_OPTIONS=-l oracle2
INITIATE_DBVISIT_ON_STANDBYSetting this to Yes will initiate Dbvisit Standby on the standby server as the last step of running Dbvisit Standby on the primary server. 
Setting this to Yes, will mean Dbvisit Standby should no longer be scheduled on the standby server (as it is now initiated from the primary server). 
Dbvisit Standby will no longer function as two independent processes with independent alerting and a new strategy must be in place to ensure that notification is received in case of a failure. 
It is therefore recommended to set ARCHIVE_LOG_GAP_THRESHOLD or TRANSFER_LOG_GAP_THRESHOLD and to schedule the Dbvisit Standby log gap report (dbvisit -i) on the primary to alert if the standby database gets too far behind the primary database.
Warning: Only set this to Yes if you understand the implications.
Sample:
 INITIATE_DBVISIT_ON_STANDBY=Yes
ALERT_IF_STDBY_READ_ONLYWhen standby database is in READ ONLY mode, the latest changes cannot be applied. This setting determines the action taken when Dbvisit Standby is run on the standby server.
Yes = Dbvisit Standby will alert if standby database is in READ ONLY mode and Dbvisit Standby is run to apply archive logs (Default).
No = Dbvisit Standby will NOT alert if standby database is in READ ONLY mode and Dbvisit Standby is run to apply archive logs. Dbvisit Standby will exit normally with a message in the Dbvisit Standby log file.
Default value: Yes
Sample:
ALERT_IF_STDBY_READ_ONLY=No
ARCHIVE_LOG_GAP_THRESHOLDDbvisit Standby will alert if the log gap from the Dbvisit Standby log gap report (dbvisit -i) exceeds these values (set to 0 to turn off). 
TRANSFER_LOG_GAP_THRESHOLDARCHIVE_LOG_GAP_THRESHOLD is the difference between the last archived sequence on the primary and the last applied sequence on the standby database. The archive log gap should be near 0 (except when APPLY_DELAY_LAG_MINUTES is used). 
 TRANSFER_LOG_GAP_THRESHOLD is the difference between the last archived sequence on the primary and the last sequence transferred to the standby server. The transfer log gap should be near 0.
 The dbvisit -i <database> command must be scheduled for these settings to be effective.
 Sample:
 ARCHIVE_LOG_GAP_THRESHOLD = 0
 TRANSFER_LOG_GAP_THRESHOLD = 4
LOG_FILE_ROTATE_MAXDbvisit Standby log files are will automatically according to these settings.
LOG_FILE_SIZE_MAX_MBLOG_FILE_ROTATE_MAX indicates how many backups are made of the log files before it is overwritten.
 The first backup will be dbvisit_hist.log.1
 The second backup will be dbvisit_hist.log.2
 etc.
 LOG_FILE_SIZE_MAX_MB indicates the size of the log file before the log file is rotated as above.                              
  
 Sample:
 LOG_FILE_ROTATE_MAX = 5
 LOG_FILE_SIZE_MAX_MB = 5
AUTO_START_STANDBY_DBAutomatically start the standby database if standby database is down and dbvisit -i or dbvisit -R command is given on the primary server. These Dbvisit Standby commands require the standby database to be up. Setting AUTO_START_STANDBY_DB = Yes ensures the standby database will be up.
Default value: Yes
Sample:
AUTO_START_STANDBY_DB=Yes
APPLY_DELAY_LAG_MINUTESThis creates a lag time in minutes between the archiving of a redo log at the primary database and the application of the log on the standby database.
Note that the archive logs are still transferred to the standby server as normal without delay.
When this variable is > 0, MAX_TIMES_TRIED can no longer be relied on to alert when there are no new archives to be applied to the standby database. Use TRANSFER_LOG_GAP_THRESHOLD instead for alerting.
To turn off APPLY_DELAY_LAG_MINUTES, set to 0.
Important Note: If you want to use this option to enable a delay in applying archived redo on the standby, it is required that timezone on the Primary and Standby operating systems be the same. Changing timezones should be done with caution and it is recommended to review the Oracle documentation or contact Oracle support before making any timezone changes to a database environment. Ideally timezones should be configured before database creation.
Sample:
APPLY_DELAY_LAG_MINUTES=100

MAILSUBJECT_PREFIX_LOG_GAP_REPORT

MAILSUBJECT_PREFIX_SUCCESSFUL

MAILSUBJECT_PREFIX_HEARTBEAT

These variables can be used to set a prefix for the email subject line. This can then be used to set filtering rules for emails.

MAILSUBJECT_PREFIX_LOG_GAP_REPORT is for the archive log gap report.

MAILSUBJECT_PREFIX_SUCCESSFUL is for the Dbvisit Standby success email.

MAILSUBJECT_PREFIX_HEARTBEAT is for the Dbvisit Standby heartbeat email.

For example by setting MAILSUBJECT_PREFIX_LOG_GAP_REPORT = 53

The result will be:

"53 - Dbvisit report for PRODB: Transfer log gap: 0 Archive log gap: 0"

MAILCFG_AUTH_USERMAILCFG_AUTH_USER is for SMTP authentication (username).
MAILCFG_AUTH_PASSWDMAILCFG_AUTH_PASSWD is for SMTP authentication (password).
MAILCFG_CCMAILCFG_CC is used to specify cc Dbvisit Standby emails.
MAILCFG_BCCMAILCFG_BCC is used to specify bcc Dbvisit Standby emails.
MAILCFG_ATTACH_TRACEFILE

MAILCFG_ATTACH_TRACEFILE is to specify whether to attach trace files to error emails so that these can be forwarded to Dbvisit Standby support.

Example :

MAILCFG_ATTACH_TRACEFILE = No

MAILCFG_ATTACH_TRACEFILE_MAX_SIZE_IN_BYTESMAILCFG_ATTACH_TRACEFILE_MAX_SIZE_IN_BYTES is to specify a file size limit to attaching the trace file.
MAILCFG_SENDMAIL_CLIENT

MAILCFG_SENDMAIL_CLIENT is to specify another sendmail client. Full path must be provided.

Example:

MAILCFG_SENDMAIL_CLIENT =C:\\programs\\sendmail.exe

MAILCFG_PORT

MAILCFG_PORT is to specify another smtp port.

Example:

MAILCFG_PORT = 26

MAILCFG_DEBUG

MAILCFG_DEBUG is to turn on smtp debug messages.

Example:

MAILCFG_DEBUG = 1

MAILCFG_TIME_OUT

MAILCFG_TIME_OUT is the specify smtp timeout. 

Example:

MAILCFG_TIME_OUT = 5

SWITCHOVER_TIMEOUT_IN_SEC

SWITCHOVER_TIMEOUT_IN_SEC is the maximum time in seconds that Dbvisit Standby will wait for response from the other server during graceful switchover ONLY.

Default value:

SWITCHOVER_TIMEOUT_IN_SEC = 1500

Example:

SWITCHOVER_TIMEOUT_IN_SEC = 3000

SWITCHOVER_WAIT_IN_SEC

SWITCHOVER_WAIT_IN_SEC is the time interval in seconds between Dbvisit Standby polling the other server for a response during graceful switchover ONLY.

Default value:

SWITCHOVER_WAIT_IN_SEC = 5

Example:

SWITCHOVER_WAIT_IN_SEC = 10

USE_LONG_SERVER_NAME

Dbvisit Standby uses short names for the primary and standby servers set by SOURCE and DESTINATION respectively. To use fully qualified domain names for the SOURCE and DESTINATION settings set to Y:

Default:

USE_LONG_SERVER_NAMES = N

Example:

USE_LONG_SERVER_NAMES = Yes

DROP_STANDBY_TEMPFILES

Specifies if tempfiles should be dropped on the standby database after successful completion of Graceful Switchover for Oracle versions 11.2 or higher. This is a workaround to fix Oracle bug 10292173.

Default :

DROP_STANDBY_TEMPFILES = Yes

ARCHTMPSpecifies a temporary location on the primary server to copy archives from ASM before shipping them to the standby, in case of an ASM primary database. Defaults to ARCHDEST
RECOVERY_PARALLELISM

May take values PARALLEL to enforce parallel recovery of database, or NOPARALLEL to enforce serial recovery of database. If not specified then reset to NOPARALLEL for databases version 11.1 and higher.Defaults to none

Example:

RECOVERY_PARALLELISM = PARALLEL

CSD_FORCE_ASM_REDO_CONVERT

Set to Y if your environment does not allow for creating a filesystem standby database for an ASM primary database on a standby server that does not have an ASM instance running.

Default:

CSD_FORCE_ASM_REDO_CONVERT = N

SHUT_WIN_SERVICE

Specifies if windows service should be shut down when the standby database is shutdown during creating of standby database and Graceful Switchover

Default:

SHUT_WIN_SERVICE = N

AMM_CHECK_TRANSFERRED

Dbvisit AMM module checks if an archive log has been transferred to standby server(s) before deleteing it.

Default:   

AMM_CHECK_TRANSFERRED = Y

AMM_PROCESS_MULTIPLE_ARCH_DEST

Dbvisit AMM module processes multiple archive destinations when deleting logs on the primary server. Set to N to turn off.

Default:

AMM_PROCESS_MULTIPLE_ARCH_DEST = Y

DBV_LAST_RUN_OFFSET

For multiple standby databases, Dbvisit AMM module checks if an archive log has been transferred to a standby server before deleteing it, if Dbvisit Standby has run at least once within the last DBV_LAST_RUN_OFFSET days

Default:

DBV_LAST_RUN_OFFSET = 1

MIN_ARCH_TO_KEEP

Number of archive logs Dbvisit AMM module keeps on the server when deleting logs, regardless of AMM settings

Default

MIN_ARCH_TO_KEEP = 3

RUN_INSPECT

Automatically run dbvisit -i on the primary server every time Dbvisit executes. dbvisit -i collects the archive and transfer log gap information from the standby database and saves this information for reporting purposes. It will also alert if ARCHIVE_LOG_GAP_THRESHOLD or TRANSFER_LOG_GAP_THRESHOLD have exceeded their threshold.

Default:

RUN_INSPECT = Yes

RMAN_DBF_BACKUP_TYPE
The CSD process is making use of RMAN (when direct transfer is not used).  To be more specific COMPRESSED BACKUPSET is used for the backups.  
In certain scenarios it might be required to adjust the backup option to not use compressed backups or to rather use image copies.  This can be done by setting the RMAN_DBF_BACKUP_TYPE parameter in the primary server DDC file.  This parameter can be set to specify if a backupset, compressed backupset or image copies are to be used during the CSD operation:
Valid options are:
RMAN_DBF_BACKUP_TYPE=AS BACKUPSET
RMAN_DBF_BACKUP_TYPE=AS COMPRESSED BACKUPSET
RMAN_DBF_BACKUP_TYPE=AS COPY