MongoDB Documentation, Release 3.0.4 Error Parsing Command Line One of the following errors at the command line: Error parsing command line: unknown option snmp-master try 'mongod --help' for more information Error parsing command line: unknown option snmp-subagent try 'mongod --help' for more information mongod binaries that are not part of the Enterprise Edition produce this error. Install the Enterprise Edition (page 33) and attempt to start mongod again. Other MongoDB binaries, including mongos will produce this error if you attempt to star them with snmp-master or snmp-subagent . Only mongod supports SNMP. Error Starting SNMPAgent The following line in the log file indicates that mongod cannot read the mongod.conf file: [SNMPAgent] warning: error starting SNMPAgent as master err:1 If running on Linux, ensure mongod.conf exists in the /etc/snmp directory, and ensure that the mongod UNIX user has permission to read the mongod.conf file. If running on Windows, ensure mongod.conf exists in C:\snmp\etc\config . The following tutorials describe backup and restoration for a mongod instance: 5.2.2 Backup and Recovery Backup and Restore with Filesystem Snapshots (page 243) An outline of procedures for creating MongoDB data set backups using system-level file snapshot tool, such as LVM or native storage appliance tools. Restore a Replica Set from MongoDB Backups (page 247) Describes procedure for restoring a replica set from an archived backup such as a mongodump or MongoDB Cloud Manager 93 Backup file. Back Up and Restore with MongoDB Tools (page 249) Describes a procedure for exporting the contents of a database to either a binary dump or a textual exchange format, and for importing these files into a database. Backup and Restore Sharded Clusters (page 254) Detailed procedures and considerations for backing up sharded clusters and single shards. Recover Data after an Unexpected Shutdown (page 263) Recover data from MongoDB data files that were not prop- erly closed or have an invalid state. Backup and Restore with Filesystem Snapshots This document describes a procedure for creating backups of MongoDB systems using system-level tools, such as LVM or storage appliance, as well as the corresponding restoration strategies. These filesystem snapshots, or “block-level” backup methods use system level tools to create copies of the device that holds MongoDB’s data files. These methods complete quickly and work reliably, but require more system configura- tion outside of MongoDB. See also: MongoDB Backup Methods (page 184) and Back Up and Restore with MongoDB Tools (page 249). 5.2. Administration Tutorials 243 $^{93}$https://cloud.mongodb.com/?jmp=docs