ars.cfg

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ars.cfg is the main IBM CMOD configuration file. The default IBM Content Manager OnDemand configuration file doesn't contain all of the parameters that are recognized by the server - those parameters are listed at the end of this article. This configuration file is from IBM Content Manager OnDemand 10.1 for Linux.

ars.cfg Header, License, & Language CMOD Configuration

Sample IBM Content Manager OnDemand Configuration File  
 #
 #       ars.cfg - OnDemand Configuration File 
 #
 #  5622-662 (C) COPYRIGHT IBM CORPORATION 2001
 #  All Rights Reserved
 #  Licensed Materials - Property of IBM
 #
 #  US Government Users Restricted Rights - Use, duplication or
 #  disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
 #
 #  This program sample is provided on an as-is basis.
 #  The licensee of the OnDemand product is free to copy, revise,
 #  modify, and make derivative works of this program sample
 #  as they see fit.  
 #
 # File Format:
 #       1) Comments must begin with a # in the first column
 #       2) Comments cannot exist on the same line as a PARM
 #       3) PARM=VALUE, no spaces before PARM, no spaces after VALUE,
 #          and no spaces before/after the equal sign.
 #       4) Blank lines are ignored.
 #
 # NOTE:  Please see documentation for configuring these parameters.
 #
 #######################
 # OnDemand Parameters #
 #######################
 #
 # Number of client licenses (Library Server Only) 
 #
 #  - This should be set to however many licenses are purchased
 #
 ARS_NUM_LICENSE=1
 #
 # Language used to create the database (Library Server Only)
 #  - This should be set during installation and should never be changed 
 #
 ARS_LANGUAGE=ENU
ARS_NUM_LICENSE
This parameter determines the number of permitted end-user licenses that CMOD is configured to allow. When the server exceeds this number, the non-compliant use is permitted, but messages are logged into the OnDemand System Log to notify the administrator. Contact your software procurement team to determine the number of licenses your organization is entitled to.
ARS_LANGUAGE
This is the three-alpha ISO code for the language you would like CMOD to use for messages and output.

IBM CMOD Premium Feature Pack Configuration

IBM Content Manager OnDemand Premium Feature Pack Parameters  
 #  Enable Filenet Content Federation Service - OnDemand
 ARS_SUPPORT_CFSOD=1
 
 # Enable IBM CMOD ERM - IBM Content Manager OnDemand Enhanced Retention Management 
 ARS_SUPPORT_ERM=1
 

After installing the IBM CMOD Feature Pack, add the parameters to the Content Manager OnDemand Configuration File ars.cfg (UNIX & Linux platforms) or enable it in the IBM Content Manager OnDemand Configurator (Windows).

ARS_SUPPORT_CFSOD
Set this parameter to 1 if you are licensed to use the Content Manager OnDemand Content Federation System for OnDemand ("IBM CMOD CFS:OD") feature.
ARS_SUPPORT_HOLD
Set this parameter to 1 if you are licensed to use the Content Manager OnDemand Enhanced Retention Management ("IBM CMOD ERM") feature.

Also: Unlisted CMOD Server Options.

IBM CMOD Object Server Configuration

This block is largely deprecated. Maintaining separate CMOD object and library servers is uncommon now that limitations on the amount of storage any one server can access has been eliminated by technologies like NFS, SAN, and Cloud-based storage.

Sample IBM Content Manager OnDemand Object Server Configuration  
 #
 # Object Server/Library Server definitions (Object Server Only)
 #
 #   If Object Server then set
 #
 #     ARS_SRVR=<server>
 #        <server> is name of the OnDemand Library Server
 #
 #     ARS_LOCAL_SRVR=<server>
 #        <server> is name of the local OnDemand Object Server
 #
 #   For Example:
 #
 #      Server Type (hostname)
 #     |----------------------|
 #     | ObjServer   (ObjSrv1)|
 #     |----------------------|
 #
 #     |----------------------|
 #     | LibServer   (LibSrvr)|
 #     |----------------------|
 #
 #     |----------------------|
 #     | ObjServer   (ObjSrv2)|
 #     |----------------------|
 #
 #   LibSrvr:
 #     Neither Variable should be set
 #
 #   ObjSrv1:
 #     ARS_SRVR=LibSrvr
 #     ARS_LOCAL_SRVR=ObjSrv1
 #
 #   ObjSrv2:
 #     ARS_SRVR=LibSrvr
 #     ARS_LOCAL_SRVR=ObjSrv2
 #
 # NOTES:
 #        - These names should be exactly what is specified for the server
 #          in the storage node
 #        - If CICS client is being used you must specifiy the machines
 #          internet address instead of hostname or alias.
 #
 #
 ARS_SRVR=
 ARS_LOCAL_SRVR=
ARS_SRVR
The hostname of the CMOD Library Server. This name should be a fully qualified domain name for reliability. (Library.cmod.example.com)
ARS_LOCAL_SRVR
The hostname of the CMOD Object Server. This name should be a fully qualified domain name for reliability. (Object1.cmod.example.com, Object2.cmod.example.com)
ARS_STORAGE_MANAGER
This CMOD parameter configures the server to be 'Cache Only' with no secondary storage management, or 'TSM', which enables storage management with Tivoli Storage Manager (previously "ADSM" or "ADSTAR Distributed Storage Manager", now "Spectrum Protect" as of 2018) or the IBM CMOD cloud storage options in Content Manager OnDemand v9.5.0.4 and higher. Older versions of CMOD used the "ADSM" parameter, Also see the CMOD Storage Management section for more information on configuring CMOD with TSM.

IBM CMOD Database Configuration

Sample Content Manager OnDemand Database Configuration  
 #
 # Number of Database SubServers (Library Server Only)
 #   0         - Defaults to connection per client
 #   Otherwise - The number of Database SubServers to handle connections
 #               to the database (minimum of 2) 
 #
 ARS_NUM_DBSRVR=4
 #
 # Database for OnDemand to use (Library Server Only)
 #
 ARS_DB_ENGINE=DB2
 #
 # Used for arstblsp command and reloading migrated tables (Library Server Only)
 #   0 (import)
 #   1 (load w/TSM - DB2 only)
 #   2 (load w/DISK - DB2 only, using ARS_TMP)
 #
 ARS_DB_IMPORT=0
 # 
 # Used to specify if the database supports partitioning (Library Server Only)
 #   Blank (No partition support)
 #
 ARS_DB_PARTITION=
 ########################################
 # DB2 Parameters (Library Server Only) #
 ########################################
 DB2INSTANCE=archive
ARS_NUM_DBSRVR
The ARS_NUM_DBSRVR parameter specifies the number of 'subservers' or database connections to create to the database. In larger systems, increasing this number may have performance benefits, at the expense of using additional RAM.
The default of four should work for most non-public-facing Content Manager OnDemand servers. If your IBM CMOD server is exposed to external customers (via ODWEK / or ICN) you may need to increase this value. We recommend increasing 2-3x and testing the performance using the arssockd command with the -px options.
Increasing ARS_NUM_DBSRVR number too high may result in poor performance if not enough RAM is available.
Setting ARS_NUM_DBSRVR to 0 (zero) on large systems may cause performance issues during spikes in activity, as each new connection to CMOD creates a new Subserver, which may consume all available RAM.
ARS_DB_ENGINE
Specifies the database engine to be used. This parameter must be one of the following values: DB2, ORACLE, or MSSQL.
ARS_DB_IMPORT
In the early days of CMOD, when storage space was prohibitively expensive, OnDemand had the ability to 'archive' infrequently used database tables in the same way that it archived data to TSM. As storage prices have fallen and data compression in database engines has become common, this method of reducing the use of disk space has become essentially obsolete. v9.5
ARS_DB_PARTITION
If your database engine supports partitioning, change this parameter to 1 on the library server. Application Groups which should support partitioning must have a field defined to hold the partition data.
This configuration parameter is only intended for the very largest of CMOD servers holding hundreds of billions of documents, and serving tens of thousands concurrent users. v9.5
DB2INSTANCE
Specifies the name of the database to use for storing document metadata.

IBM CMOD Database Creation

Sample IBM Content Manager OnDemand Database Creation Parameters  
 #
 # These parameters used only during database creation
 #
 ARS_DB2_DATABASE_PATH=/arsdb
 ARS_DB2_PRIMARY_LOGPATH=/arsdb_primarylog
 ARS_DB2_ARCHIVE_LOGPATH=/arsdb_archivelog
 ARS_DB2_LOGFILE_SIZE=1000
 ARS_DB2_LOG_NUMBER=40

These parameters should be defined before issuing the arsdb command with the -c, -r, or -t options.

ARS_DB2_DATABASE_PATH
This parameter describes where the main database should be created. Additional storage can be defined in the ars.dbfs configuration file.
ARS_DB2_PRIMARY_LOGPATH
This is where the databases transaction logs will be stored while CMOD is in operation.
The filesystems specified for storing database transaction logs should be the fastest and most reliable storage your organization has to offer.
ARS_DB2_ARCHIVE_LOGPATH
This is the filesystem where transaction logs will be 'archived' to create space for new transaction logs.
The size of this filesystem will be largely determined by how much logging and loading is done with CMOD.
ARS_DB2_LOGFILE_SIZE
The size of an individual database transaction log file. The size is this parameter (default of 1000) is multiplied by your database's page size (default of 4 kilobytes).
It's is strongly suggested to tune the size of this file to be up to 250MB in size for CMOD servers to reduce overhead in managing transaction logs.
ARS_DB2_LOG_NUMBER
This parameter specifies the number of transaction log files to keep.
The number of logs multiplied by the log file size parameter above determines how large your primary log filesystem should be, and how large your archive filesystem should be.
Sample IBM Content Manager OnDemand DB2 TSM Configuration Parameters  
 #
 # DB2/TSM Parameters
 #
 ARS_DB2_TSM_CONFIG=/opt/tivoli/tsm/client/api/bin/dsm.opt.db2
ARS_DB2_TSM_CONFIG
This is the configuration file for Tivoli Storage Manager used by DB2 for transaction log archiving and automatic backup & restores.
Sample Content Manager OnDemand Oracle Configuration Parameters  
 ###########################################
 # ORACLE Parameters (Library Server Only) #
 ###########################################
 ARS_ORACLE_HOME=/oracle
ARS_ORACLE_HOME
Points CMOD to the directory where oracle is installed.

IBM CMOD Miscellaneous Configuration

Sample IBM Content Manager OnDemand Miscellaneous Configuration Parameters  
 #
 # OnDemand Temporary Work Directory (Library/Object Server)
 #
 # NOTE:  This directory should have permissions just like /tmp
 #        drwxrwxrwt   /tmp        These perms are 1777
 #
 ARS_TMP=/tmp
 ARS_PRINT_PATH=/tmp
 ARS_MESSAGE_OF_THE_DAY=
 ARS_TRACE_SETTINGS=
ARS_TMP
This specifies the temporary directory where Content Manager OnDemand should place its temporary files during processing.
ARS_PRINT_PATH
This specifies the temporary directory used for creating temporary files for printing.
ARS_MESSAGE_OF_THE_DAY
Specifies a text file that will be displayed when users log in. Excellent for advising all users of upcoming outages or maintenance, or problems experienced by the CMOD server.
ARS_TRACE_SETTINGS
When tracing is enabled, these settings determine the level of information written to the trace file.

Special Considerations for IBM CMOD temporary files

Some of the files that Content Manager OnDemand stores are extremely large. It's a good idea to set aside a separate 'temporary' filesystem with it's own storage that is NOT shared with the operating system, database, or other data. Using the operating system's default temporary directory can cause problems on the server if the filesystem becomes full. You may experience problems like being unable to log in, being unable to list directory contents, or run basic commands that create temporary files.

IBM CMOD LDAP Configuration

For more information on configuring CMOD for LDAP access, visit: Content Manager OnDemand LDAP authentication process


Sample IBM Content Manager OnDemand LDAP Configuration Parameters  
 ###########################################
 # LDAP Parameters (Library Server Only)   #
 ###########################################
 
 ARS_LDAP_SERVER=server1.ldap.example.com
 ARS_LDAP_PORT=
 ARS_LDAP_USE_SSL=FALSE
 ARS_LDAP_BASE_DN=ou=examplegroup,o=example.com
 ARS_LDAP_BIND_ATTRIBUTE=userid
 ARS_LDAP_MAPPED_ATTRIBUTE=userid
 ARS_LDAP_ALLOW_ANONYMOUS=TRUE
 ARS_LDAP_BIND_MESSAGES_FILE=/opt/IBM/ondemand/V9.5/config/arsldap.ini
 ####################################################
 # LDAP SYNC Parameters (requires CMOD v10.1.0.2+)  #
 ####################################################
 ARS_LDAP_SERVER_TYPE=OPEN
 ARS_LDAP_USER_FILTER=(ObjectClass=USER)
 ARS_LDAP_GROUP_FILTER=(ObjectClass=GROUP)
 ARS_LDAP_GROUP_MAPPED_ATTRIBUTE=GROUPID
 ARS_LDAP_IGN_USERIDS=ADMIN,ARSLOAD,ARSMAINT
 ARS_LDAP_IGN_GROUPS=ADMINS,IT_SUPPORT,HELPDESK
ARS_LDAP_SERVER
The fully qualified domain name for your organization's LDAP server.
ARS_LDAP_PORT
The TCP/IP port number used by your LDAP server's software.
The default port is 389 if no value is specified.
A popular alternate port number is 3389.
ARS_LDAP_BASE_DN
The LDAP Base Distinguishing Name.
ARS_LDAP_BIND_DN
If your LDAP server requires a User ID and password to authenticate, this is the user name parameter.
ARS_LDAP_BIND_DN_PWD
If your LDAP server requires a User ID and password to authenticate, this is the password parameter.
ARS_LDAP_BIND_ATTRIBUTE
The name of the attribute that will be searched for on the LDAP server, and returned to CMOD.
ARS_LDAP_MAPPED_ATTRIBUTE
This value can be the same as, or different from the ARS_LDAP_MAPPED_ATTRIBUTE.
Specify the LDAP field that should be returned and used as the CMOD User ID.
ARS_LDAP_ALLOW_ANONYMOUS
Set to TRUE if your LDAP server allows access without authentication.
Set to FALSE if your LDAP server requires a Distinguishing Name ("ARS_LDAP_BIND_DN") and password ("ARS_LDAP_BIND_DN_PWD").
ARS_LDAP_BIND_MESSAGES_FILE
Set this parameter to the file that contains human-friendly error messages for return codes from the LDAP server in case of failure.
See the IBM CMOD Knowledge Centre for more information about ARSLDAP.INI
Only the PASSWORD_EXPIRED and ACCOUNT_LOCKED return codes from LDAP are currently supported in Content Manager OnDemand v10.1.
ARS_LDAP_OD_AUTHORITY_FALLBACK
If set to TRUE, falls back to authentication via the passwords stored in the IBM CMOD database if the UserID doesn't exist in Active Directory or LDAP, or the authentication server is down.
If set to FALSE, fails to authenicate when the AD/LDAP server is not available to authenicate users, or the user does not exist in AD/LDAP.
The only exception to this setting is the ADMIN user.

IBM CMOD LDAP Sync Parameters

These parameters are for LDAP User & Group syncing, and require IBM CMOD v10.1 Fixpack 2 or higher on Multiplatforms, and IBM CMOD iSeries/zSeries 10.1 Fixpack 3. Despite the minimum version requirements, upgrading to CMOD v10.1 FixPack 4 on all platforms is recommended to receive critical bug fixes. All of these parameters are REQUIRED for CMOD LDAP Sync to work.

ARS_LDAP_SERVER_TYPE
Specifies the type of LDAP server that CMOD will connect to: AD for Active Directory, SUN for Java System Directory Server, or OPEN for the OpenLDAP project.
Only one of the above types can be selected.
ARS_LDAP_USER_FILTER
Queries the LDAP server for IBM CMOD users that will be synced to OnDemand.
ARS_LDAP_GROUP_FILTER
Queries the LDAP server for IBM CMOD groups that will be synced to OnDemand.
ARS_LDAP_GROUP_MAPPED_ATTRIBUTE
Specifies the field to use for the IBM CMOD group name.
ARS_LDAP_IGN_USERIDS
Populate with a list of CMOD User IDs that are exempt from LDAP authentication, who will be authenticated by the password stored in the local OnDemand database.
It's a very good idea to include CMOD administrators in this list, so they can still log in when your organization's LDAP server is down.
If you have separate UserIDs for loading ("ARSLOAD") and maintenance ("ARSMAINT") it's a terrific idea to add them to this list of CMOD User ID's, so that normal production processing can continue, in the event of an LDAP server failure.
ARS_LDAP_IGN_GROUPS
Populate with a list of CMOD User IDs that are exempt from LDAP authentication, who will be authenticated by the password stored in the local OnDemand database.
Specifies the CMOD group identifiers that CMOD will ignore when syncing.

Also: Unlisted CMOD LDAP Options.

IBM CMOD Storage Management Configuration

Sample IBM Content Manager OnDemand TSM Configuration Parameters  
 ######################################################
 # Storage Manager Parameters (Library/Object Server) #
 ######################################################
 #
 # Storage Manager for OnDemand to use
 #
 ARS_STORAGE_MANAGER=TSM
 #######################################
 # TSM Parameters (Object Server Only) #
 #######################################
 DSMSERV_DIR=/opt/tivoli/tsm/server/bin
 DSMSERV_CONFIG=/opt/tivoli/tsm/server/bin/dsmserv.opt
 DSM_DIR=/opt/tivoli/tsm/client/api/bin64
 DSM_CONFIG=/opt/tivoli/tsm/client/api/bin64/dsm.opt
 DSM_LOG=/tmp
 DSMG_DIR=/opt/tivoli/tsm/client/api/bin64
 DSMG_CONFIG=/opt/tivoli/tsm/client/api/bin64/dsm.opt
 DSMG_LOG=/tmp
 DSMI_DIR=/opt/tivoli/tsm/client/api/bin64
 DSMI_CONFIG=/opt/tivoli/tsm/client/api/bin64/dsm.opt
 DSMI_LOG=/tmp

The majority of these configuration parameters are only of interest if you are using the ars_adsm script. Only the DSM_CONFIG and DSMI_CONFIG parameters are required if your TSM server is on another separate server.

DSMSERV_DIR
The directory where IBM Tivoli Storage Manager (now IBM Spectrum Protect) is installed.
DSMSERV_CONFIG
The configuration file for the TSM server.
If your TSM/SP server is remote, these files aren't used.
DSM_DIR / DSMG_DIR / DSMI_DIR
The directory where the 64-bit TSM/SP Client API is installed.
DSM_CONFIG / DSMG_CONFIG / DSMI_CONFIG
Points to the file containing the TSM Configuration file.
DSM_LOG / DSMG_LOG / DSMI_LOG
Points to the directory where the TSM Client files should be written.

Special Considerations for TSM Log files

The configuration parameters above that end in _LOG are log files. By default, the logs all go to /tmp, which is, frankly, a terrible idea. Instead, these log files should all go to a directory specifically for IBM CMOD Logs. This will prevent errors arising from conflicting permissions, or filling up the server's temporary space. Also, these logs should be rotated on a regular basis. If you feel the need to place these log files in a 'standardized' space, place them in /var/log, but also create the files in advance, and provide them with generous permissions, to minimize frustration and errors.

IBM CMOD Cloud Storage Options

Starting in IBM Content Manager OnDemand v9.5 Fixpack 3, there are a number of parameters for Storage Management that aren't included in the configuration file. If you're planning on using IBM CMOD Cloud Storage, you'll need to add one or more of these parameters. If Tivoli Storage Manager will NOT be part of your solution, you'll need to modify the ARS_STORAGE_MANAGER parameter to be "NO_TSM". If you forget to make this IBM Content Manager OnDemand configuration change, arssockd may fail to start. If OnDemand's ARS_STORAGE_MANAGER is set to CACHE_ONLY, then the Cloud Storage options won't be available at all.

Amazon Simple Storage Service a.k.a. S3

ARS_S3_CONFIG_FILE
Specifies the location and name of the configuration file, for example:
 ARS_S3_CONFIG_FILE=/opt/IBM/ondemand/V10.1/config/ars.s3
ARS_S3_CONFIG_DIR
Specifies the directory where additional configuration files can be found if required for your IBM CMOD S3 connection, for example:
 ARS_S3_CONFIG_DIR=/opt/IBM/ondemand/V10.1/config

For more information: Knowledgebase for IBM CMOD v10.1 Amazon Web Services S3

Hadoop Distributed File System

ARS_HDFS_CONFIG_FILE
Specifies the location and name of the configuration file, for example:
 ARS_HDFS_CONFIG_FILE=/opt/IBM/ondemand/V10.1/config/ars.hdfs
ARS_HDFS_CONFIG_DIR
Specifies the directory where additional configuration files can be found if required for your IBM CMOD HDFS connection, for example:
 ARS_HDFS_CONFIG_DIR=/opt/IBM/ondemand/V10.1/config

For more information: Knowledgebase for IBM CMOD v10.1 Apache Hadoop Project

IBM Cloud Object Storage a.k.a. ICOS

ARS_ICOS_CONFIG_FILE
Specifies the location and name of the configuration file, for example:
 ARS_ICOS_CONFIG_FILE=/opt/IBM/ondemand/V10.1/config/ars.icos
ARS_ICOS_CONFIG_DIR
Specifies the directory where additional configuration files can be found if required for your IBM CMOD ICOS connection, for example:
 ARS_ICOS_CONFIG_DIR=/opt/IBM/ondemand/V10.1/config

For more information: Knowledgebase for IBM CMOD v10.1 IBM Cloud Object Storage

OpenStack Swift Storage

ARS_SWIFT_CONFIG_FILE
Specifies the location and name of the configuration file, for example:
 ARS_SWIFT_CONFIG_FILE=/opt/IBM/ondemand/V10.1/config/ars.swift
ARS_SWIFT_CONFIG_DIR
Specifies the directory where additional configuration files can be found if required for your IBM CMOD OpenStack Swift connection, for example:
 ARS_SWIFT_CONFIG_DIR=/opt/IBM/ondemand/V10.1/config

For more information: Knowledgebase for IBM CMOD v10.1 OpenStack Swift

IBM CMOD Filesystem Storage

ARS_FILESYSTEM_CONFIG_FILE
Specifies the location and name of the configuration file, for example:
 ARS_FILESYSTEM_CONFIG_FILE=/opt/IBM/ondemand/V10.1/config/ars.fs
ARS_FILESYSTEM_CONFIG_DIR
Specifies the directory where additional configuration files can be found if required for your IBM CMOD Filesystem Storage connection, for example:
 ARS_FILESYSTEM_CONFIG_DIR=/opt/IBM/ondemand/V10.1/config

For more information: Knowledgebase for IBM CMOD v10.1

IBM CMOD Unlisted Configuration Parameters

These parameters aren't listed in the Content Manager OnDemand Configuration File by default.

IBM CMOD Server Parameters

ARS_ORIGINAL_CODEPAGE
When upgrading a server from v7.1.x to v8.5 and above, you must specify the original codepage of the database for Unicode support.
Set this value to the numeric codepage value of the database. This allows OnDemand to translate the contents of the database to Unicode.
Where possible, servers should be migrated to support Unicode in their databases.
ARS_DB_PARTITION
Determines if IBM Content Manager OnDemand will take advantage of your database engine's partitioning features. Set to 1 (one) to enable.
If this parameter is set, Application Groups must have a 'partition' field defined to determine which partition the index data will be stored on.
ARS_DB_TABLESPACE
Set this value to an already-existing tablespace name to keep the OnDemand configuration database tables in.
ARS_DB_TABLESPACE_USEREXIT
Specify the full directory path to the User Exit that is called when creating CMOD tablespaces.
The tablespace user exit allows you to customize the creation of tablespaces, tables, and indexes for CMOD metadata tables.
ARS_LOCK_HOSTS
Configures Apache Zookeeper for IBM CMOD Active-Active Configuration. See IBM CMOD Active-Active Support for more info.
ARS_DB_MAX_SQL_TABLES
Specifies the maximum number of tables to query when searching an Application Group. The default value is unknown. This parameter is a short term solution -- instead, you should be optimizing Table Segmentation in Content Manager OnDemand and your DBA should increase the size of DB2 DBHEAP and STMT_HEAP parameters in the database configuration. Visit the IBM TechNote on ARS_DB_MAX_SQL_TABLES for more information.
ARSSOCK_RCVBUF_SIZE
Set the size of the TCP Receive Buffers for arssockd. The recommended value is 262144. Use in combination with ARSSOCK_TCP_NODELAY.
ARSSOCK_SNDBUF_SIZE
Set the size of the TCP Send Buffers for arssockd. The recommended value is 262144. Use in combination with ARSSOCK_TCP_NODELAY
ARS_SUPPORT_CFSOD
Set this parameter to 1 if you are licensed to use the Content Federation System for OnDemand ("CFS:OD") feature.
ARS_SUPPORT_HOLD
Set this parameter to 1 if you are licensed to use the Content Manager OnDemand Enhanced Retention Management ("IBM CMOD ERM") feature.
ARS_SUPPORT_OLD_ODWEK_DOCIDS
When set to the number one (1), allows the server to accept DocIDs from ODWEK in the legacy (unencrypted/cleartext) format. This parameter is only supported on versions of IBM CMOD v9.5.0.3 and newer. Rather than enabling this parameter, your ODWEK apps should be updated to use the new, more secure DocID format.
ARSSOCK_TCP_NODELAY
Set to 1 to enable Nagle's Algorithm in order to improve performance on systems where it isn't enabled by default. In AIX and Linux, it is enabled at the operating system level by default. Nagle's algorithm
ARS_USE_OLD_STYLE_CASE
Use the old (pre-v8.5) method for converting the case of characters not in the current codepage. IBM PM82660 & IBM Technote & ODNews Q1 2014
Preserving case-switching behavior IBM Technote
ARS_USER_EXITS_DIR
Custom user exits need to live in a directory separate from those provided by IBM. Specify the directory with this parameter.
Consider locating your exits in the CMOD instance owners' home directory, with the following structure: /home/archive/exits/ or /home/odadmin/exits
See a post on this topic on the IBM CMOD User Group Forums.

IBM CMOD ODWEK Load Parameters

When loading data via the ODWEK Java API, attempts to load may fail with the error "The server failed while storing a document", because there in not enough space available in the ARS_TMP filesystem to complete the load. You can specify a separate temporary directory for downloaded data to be loaded into IBM CMOD:

ARS_DOWNLOAD_DIR
The directory where data is stored in preparation for ODWEK loading.
ARS_DOWNLOAD_TMP_DIR
The directory where temporary files created during ODWEK loading will be stored.