SQL 2008 has now been fully released for just over a month, and for those who have not been keeping track of additions throughout the CTPs and Release Candidates, here is a bit of useful information: SQL 2008 has 46 new DMVs(as of version 10.0.1442).
If you have a 2005 instance on your box along side your 2008 install, you can run this from your 2008 instance query to take a look at the output:
select name fromsys.all_objectswhere name like'dm_%'
except
select name from [localhost\sql2005instance].master.sys.all_objectswhere name like'dm_%'
Several of these DMVs correspond directly to feature additions such as Filestream, new cryptography features and resource governor, plus several that give more insight into the host OS.
Here is the complete list if you don't have a 2005 instance handy:
dm_audit_actions
dm_audit_class_type_map
dm_cdc_errors
dm_cdc_log_scan_sessions
dm_cryptographic_provider_algorithms
dm_cryptographic_provider_keys
dm_cryptographic_provider_properties
dm_cryptographic_provider_sessions
dm_database_encryption_keys
dm_db_mirroring_auto_page_repair
dm_db_mirroring_past_actions
dm_db_persisted_sku_features
dm_exec_procedure_stats
dm_exec_trigger_stats
dm_filestream_file_io_handles
dm_filestream_file_io_requests
dm_fts_fdhosts
dm_fts_index_keywords
dm_fts_index_keywords_by_document
dm_fts_outstanding_batches
dm_fts_parser
dm_os_dispatcher_pools
dm_os_dispatchers
dm_os_memory_brokers
dm_os_memory_node_access_stats
dm_os_memory_nodes
dm_os_nodes
dm_os_process_memory
dm_os_spinlock_stats
dm_os_sys_memory
dm_resource_governor_configuration
dm_resource_governor_resource_pools
dm_resource_governor_workload_groups
dm_server_audit_status
dm_sql_referenced_entities
dm_sql_referencing_entities
dm_tran_commit_table
dm_xe_map_values
dm_xe_object_columns
dm_xe_objects
dm_xe_packages
dm_xe_session_event_actions
dm_xe_session_events
dm_xe_session_object_columns
dm_xe_session_targets
dm_xe_sessions
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