Finding the right log will help you heaps when troubleshooting the clients.
Here’s a list of the files availible in SCCM 2012.

The client logs are located in the %WINDIR%\System32\CCM\Logs folder or %WINDIR%\SysWOW64\CCM\Logs

The SCCM server log files are located in the <INSTALL_PATH>\Logs or SMS_CCM\Logs folder.
IIS logs can be found in %WINDIR%\System32\logfiles\W3SVC1 folder.

Client Log Files

  • CAS.log – Content Access Service. Maintains the local package cache.
  • Ccmexec.log – Records activities of the client and the SMS Agent Host
    service.
  • CertificateMaintenance.log – Maintains certificates for Active Directory
    directory service and management points.
  • ClientIDManagerStartup.log – Creates and maintains the client GUID.
  • ClientLocation.log – Site assignment tasks.
  • ContentTransferManager.log – Schedules the Background Intelligent Transfer
    Service (BITS) or the Server Message Block (SMB) to download or to access SMS
    packages.
  • DataTransferService.log – Records all BITS communication for policy or package
    access.
  • Execmgr.log – Records advertisements that run.
  • FileBITS.log – Records all SMB package access tasks.
  • Fsinvprovider.log – Windows Management Instrumentation (WMI) provider for software inventory and file
    collection.
  • InventoryAgent.log – Creates discovery data records (DDRs) and hardware and
    software inventory records.
  • LocationServices.log – Finds management points and distribution points.
  • Mifprovider.log – The WMI provider for .MIF files.
  • Mtrmgr.log – Monitors all software metering processes.
  • PolicyAgent.log – Requests policies by using the Data Transfer service.
  • PolicyAgentProvider.log – Records policy changes.
  • PolicyEvaluator.log – Records new policy settings.
  • Remctrl.log – Logs when the remote control component (WUSER32) starts.
  • Scheduler.log – Records schedule tasks for all client operations.
  • Smscliui.log – Records usage of the Systems Management tool in Control
    Panel.
  • StatusAgent.log – Logs status messages that are created by the client
    components.
  • SWMTRReportGen.log – Generates a usage data report that is collected by the
    metering agent. (This data is logged in Mtrmgr.log.)

Server Log Files

  • Ccm.log – Client Configuration Manager tasks.
  • Cidm.log – Records changes to the client settings by the Client Install Data
    Manager (CIDM).
  • Colleval.log – Logs when collections are created, changed, and deleted by the
    Collection Evaluator.
  • Compsumm.log – Records Component Status Summarizer tasks.
  • Cscnfsvc.log – Records Courier Sender confirmation service tasks.
  • Dataldr.log – Processes Management Information Format (MIF) files and hardware
    inventory in the Configuration Manager 2007 database.
  • Ddm.log – Saves DDR information to the Configuration Manager 2007 database by the
    Discovery Data Manager.
  • Despool.log – Records incoming site-to-site communication transfers.
  • Distmgr.log – Records package creation, compression, delta replication, and
    information updates.
  • Hman.log – Records site configuration changes, and publishes site information in
    Active Directory Domain Services.
  • Inboxast.log – Records files that are moved from the management point to the
    corresponding SMS\INBOXES folder.
  • Inboxmgr.log – Records file maintenance.
  • Invproc.log – Records the processing of delta MIF files for the Dataloader
    component from client inventory files.
  • Mpcontrol.log – Records the registration of the management point with WINS.
    Records the availability of the management point every 10 minutes.
  • Mpfdm.log – Management point component that moves client files to the
    corresponding SMS\INBOXES folder.
  • MPMSI.log – Management point .msi installation log.
  • MPSetup.log – Records the management point installation wrapper process.
  • Ntsvrdis.log – Configuration Manager 2007 server discovery.
  • Offermgr.log – Records advertisement updates.
  • Offersum.log – Records summarization of advertisement status messages.
  • Policypv.log – Records updates to the client policies to reflect changes to
    client settings or advertisements.
  • Replmgr.log – Records the replication of files between the site server components
    and the Scheduler component.
  • Rsetup.log – Reporting point setup log.
  • Sched.log – Records site-to-site job and package replication.
  • Sender.log – Records files that are sent to other child and parent sites.
  • Sinvproc.log – Records client software inventory data processing to the site
    database in Microsoft SQL Server.
  • Sitecomp.log – Records maintenance of the installed site components.
  • Sitectrl.log – Records site setting changes to the Sitectrl.ct0 file.
  • Sitestat.log – Records the monitoring process of all site systems.
  • Smsdbmon.log – Records database changes.
  • Smsexec.log – Records processing of all site server component threads.
  • Smsprov.log – Records WMI provider access to the site database.
  • SMSReportingInstall.log – Records the Reporting Point installation. This
    component starts the installation tasks and processes configuration changes.
  • SMSSHVSetup.log – Records the success or failure (with failure reason) of
    installing the System Health Validator point.
  • Srvacct.log – Records the maintenance of accounts when the site uses standard
    security.
  • Statmgr.log – Writes all status messages to the database.
  • Swmproc.log – Processes metering files and maintains settings.

Admin Console Log Files

  • RepairWizard.log – Records errors, warnings, and information about the process of
    running the Repair Wizard.
  • ResourceExplorer.log – Records errors, warnings, and information about running
    the Resource Explorer.
  • SMSAdminUI.log – Records the local Configuration Manager 2007 console tasks when
    you connect to Configuration Manager 2007 sites.

Management Point Log Files

  • MP_Ddr.log – Records the conversion of XML.ddr records from clients, and copies
    them to the site server.
  • MP_GetAuth.log – Records the status of the site management points.
  • MP_GetPolicy.log – Records policy information.
  • MP_Hinv.log – Converts XML hardware inventory records from clients and copies the
    files to the site server.
  • MP_Location.log – Records location manager tasks.
  • MP_Policy.log – Records policy communication.
  • MP_Relay.log – Copies files that are collected from the client.
  • MP_Retry.log – Records the hardware inventory retry processes.
  • MP_Sinv.log – Converts XML hardware inventory records from clients and copies
    them to the site server.
  • MP_Status.log – Converts XML.svf status message files from clients and copies
    them to the site server.

Mobile Device Management Log Files

  • DmClientHealth.log – Records the GUIDs of all the mobile device clients that are
    communicating with the Device Management Point.
  • DmClientRegistration.log – Records registration requests from and responses to
    the mobile device client in Native mode.
  • DmpDatastore.log – Records all the site database connections and queries made by
    the Device Management Point.
  • DmpDiscovery.log – Records all the discovery data from the mobile device clients
    on the Device Management Point.
  • DmpFileCollection.log – Records mobile device file collection data from mobile
    device clients on the Device Management Point.
  • DmpHardware.log – Records hardware inventory data from mobile device clients on
    the Device Management Point.
  • DmpIsapi.log – Records mobile device communication data from device clients on
    the Device Management Point.
  • dmpMSI.log – Records the MSI data for Device Management Point setup.
  • DMPSetup.log – Records the mobile device management setup process.
  • DmpSoftware.log – Records mobile device software distribution data from mobile
    device clients on the Device Management Point.
  • DmpStatus.log – Records mobile device status messages data from mobile device
    clients on the Device Management Point.
  • FspIsapi.log – Records Fallback Status Point communication data from mobile
    device clients and client computers on the Fallback Status Point.

Mobile Device Client Log Files

  • DmCertEnroll.log – Records certificate enrollment data on mobile device
    clients.
  • DMCertResp.htm – Records HTML response from the certificate server
    when the mobile device Enroller program requests a client authentication certificate
    on mobile device clients.
  • DmClientSetup.log – Records client setup data on mobile device clients.
  • DmClientXfer.log – Records client transfer data for Windows Mobile Device Center
    and ActiveSync deployments.
  • DmCommonInstaller.log – Records client transfer file installation for setting up
    mobile device client transfer files on client computers.
  • DmInstaller.log – Records whether DMInstaller correctly calls DmClientSetup and
    whether DmClientSetup exits with success or failure on mobile device clients.
  • DmInvExtension.log – Records Inventory Extension file installation for setting up
    Inventory Extension files on client computers.
  • DmSvc.log – Records mobile device management service data on mobile device
    clients.

Operating System Deployment Log Files

  • CCMSetup.log – Provides information about client-based operating system
    actions.
  • CreateTSMedia.log – Provides information about task sequence media when it is
    created. This log is generated on the computer running the Configuration Manager 2007
    administrator console.
  • DriverCatalog.log – Provides information about device drivers that have been
    imported into the driver catalog.
  • MP_ClientIDManager.log – Provides information about the Configuration Manager
    2007 management point when it responds to Configuration Manager 2007 client ID
    requests from boot media or PXE. This log is generated on the Configuration Manager
    2007 management point.
  • MP_DriverManager.log – Provides information about the Configuration Manager 2007
    management point when it responds to a request from the Auto Apply Driver task
    sequence action. This log is generated on the Configuration Manager 2007 management
    point.
  • MP_Location.log – Provides information about the Configuration Manager 2007
    management point when it responds to request state store or release state store
    requests from the state migration point. This log is generated on the Configuration
    Manager 2007 management point.
  • Pxecontrol.log – Provides information about the PXE Control Manager.
  • PXEMsi.log – Provides information about the PXE service point and is generated
    when the PXE service point site server has been created.
  • PXESetup.log – Provides information about the PXE service point and is generated
    when the PXE service point site server has been created.
  • Setupact.log, Setupapi.log, Setuperr.log Provide information about Windows Sysprep and setup logs.
  • SmpIsapi.log – Provides information about the state migration point Configuration
    Manager 2007 client request responses.
  • Smpmgr.log – Provides information about the results of state migration point
    health checks and configuration changes.
  • SmpMSI.log – Provides information about the state migration point and is
    generated when the state migration point site server has been created.
  • Smsprov.log – Provides information about the SMS provider.
  • Smspxe.log – Provides information about the Configuration Manager 2007 PXE
    service point.
  • SMSSMPSetup.log – Provides information about the state migration point and is
    generated when the state migration point site server has been created.
  • Smsts.log – General location for all operating system deployment and task
    sequence log events.
  • TaskSequenceProvider.log – Provides information about task sequences when they
    are imported, exported, or edited.
  • USMT Log loadstate.log – Provides information about the User State Migration Tool
    (USMT) regarding the restore of user state data.
  • USMT Log scanstate.log – Provides information about the USMT regarding the
    capture of user state data.

Network Access Protection Log Files

  • Ccmcca.log – Logs the processing of compliance evaluation based on Configuration
    Manager NAP policy processing and contains the processing of remediation for each
    software update required for compliance.
  • CIAgent.log – Tracks the process of remediation and compliance. However, the
    software updates log file, *Updateshandler.log – provides more informative details on
    installing the software updates required for compliance.
  • locationservices.log – Used by other Configuration Manager features (for example,
    information about the client’s assigned site) but also contains
    information specific to Network Access Protection when the client is in remediation.
    It records the names of the required remediation servers (management point, software
    update point, and distribution points that host content required for compliance),
    which are also sent in the client statement of health.
  • SDMAgent.log – Shared with the Configuration Manager feature desired
    configuration management and contains the tracking process of remediation and
    compliance. However, the software updates log file, Updateshandler.log, provides more
    informative details about installing the software updates required for
    compliance.
  • SMSSha.log – The main log file for the Configuration Manager Network Access
    Protection client and contains a merged statement of health information from the two
    Configuration Manager components: location services (LS) and the configuration
    compliance agent (CCA). This log file also contains information about the
    interactions between the Configuration Manager System Health Agent and the operating
    system NAP agent, and also between the Configuration Manager System Health Agent and
    both the configuration compliance agent and the location services. It provides
    information about whether the NAP agent successfully initialized, the statement of
    health data, and the statement of health response.

System Health Validator Point Log Files

  • Ccmperf.log -Contains information about the initialization of the System Health
    Validator point performance counters.
  • SmsSHV.log – The main log file for the System Health Validator point; logs the
    basic operations of the System Health Validator service, such as the initialization
    progress.
  • SmsSHVADCacheClient.log – Contains information about retrieving Configuration
    Manager health state references from Active Directory Domain Services.
  • SmsSHVCacheStore.log – Contains information about the cache store used to hold
    the Configuration Manager NAP health state references retrieved from Active Directory
    Domain Services, such as reading from the store and purging entries from the local
    cache store file. The cache store is not configurable.
  • SmsSHVRegistrySettings.log – Records any dynamic changes to the System Health
    Validator component configuration while the service is running.
  • SmsSHVQuarValidator.log – Records client statement of health information and
    processing operations. To obtain full information, change the registry key LogLevel
    from 1 to 0 in the following
    location:HKLM\SOFTWARE\Microsoft\SMSSHV\Logging\@GLOBAL

Desired Configuration Management Log Files

  • ciagent.log – Provides information about downloading, storing, and accessing
    assigned configuration baselines.
  • dcmagent.log – Provides high-level information about the evaluation of assigned
    configuration baselines and desired configuration management processes.
  • discovery.log – Provides detailed information about the Service Modeling Language
    (SML) processes.
  • sdmagent.log – Provides information about downloading, storing, and accessing
    configuration item content.
  • sdmdiscagent.log – Provides high-level information about the evaluation process
    for the objects and settings configured in the referenced configuration items.

Wake On LAN Log Files

  • Wolmgr.log – Contains information about wake-up procedures such as when to wake
    up advertisements or deployments that are configured for Wake On LAN.
  • WolCmgr.log – Contains information about which clients need to be sent wake-up
    packets, the number of wake-up packets sent, and the number of wake-up packets
    retried.

Software Updates Site Server Log Files

  • ciamgr.log – Provides information about the addition, deletion, and modification
    of software update configuration items.
  • distmgr.log – Provides information about the replication of software update
    deployment packages.
  • objreplmgr.log – Provides information about the replication of software updates
    notification files from a parent to child sites.
  • PatchDownloader.log – Provides information about the process for downloading
    software updates from the update source specified in the software updates metadata to
    the download destination on the site server.
  • replmgr.log – Provides information about the process for replicating files
    between sites.
  • smsdbmon.log – Provides information about when software update configuration
    items are inserted, updated, or deleted from the site server database and creates
    notification files for software updates components.
  • SUPSetup.log – Provides information about the software update point installation.
    When the software update point installation completes, Installation was successful is
    written to this log file.
  • WCM.log – Provides information about the software update point configuration and
    connecting to the Windows Server Update Services (WSUS) server for subscribed update
    categories, classifications, and languages.
  • WSUSCtrl.log – Provides information about the configuration, database
    connectivity, and health of the WSUS server for the site.
  • wsyncmgr.log -Provides information about the software updates synchronization
    process.

WSUS Server Log Files

  • Change.log – Provides information about the WSUS server database information that
    has changed.
  • SoftwareDistribution.log – Provides information about the software updates that
    are synchronized from the configured update source to the WSUS server database.

Software Updates Client Computer Log Files

  • CAS.log – Provides information about the process of downloading software updates
    to the local cache and cache management.
  • CIAgent.log – Provides information about processing configuration items,
    including software updates.
  • LocationServices.log – Provides information about the location of the WSUS server
    when a scan is initiated on the client.
  • PatchDownloader.log – Provides information about the process for downloading
    software updates from the update source to the download destination on the site
    server. This log is only on the client computer configured as the synchronization
    host for the Inventory Tool for Microsoft Updates.
  • PolicyAgent.log – Provides information about the process for downloading,
    compiling, and deleting policies on client computers.
  • PolicyEvaluator – Provides information about the process for evaluating policies
    on client computers, including policies from software updates.
  • RebootCoordinator.log – Provides information about the process for coordinating
    system restarts on client computers after software update installations.
  • ScanAgent.log – Provides information about the scan requests for software
    updates, what tool is requested for the scan, the WSUS location, and so on.
  • ScanWrapper – Provides information about the prerequisite checks and the scan
    process initialization for the Inventory Tool for Microsoft Updates on Systems
    Management Server (SMS) 2003 clients.
  • SdmAgent.log – Provides information about the process for verifying and
    decompressing packages that contain configuration item information for software
    updates.
  • ServiceWindowManager.log – Provides information about the process for evaluating
    configured maintenance windows.
  • smscliUI.log – Provides information about the Configuration Manager Control Panel
    user interactions, such as initiating a Software Updates Scan Cycle from the
    Configuration Manager Properties dialog box, opening the Program Download Monitor,
    and so on.
  • SmsWusHandler – Provides information about the scan process for the Inventory
    Tool for Microsoft Updates on SMS 2003 client computers.
  • StateMessage.log – Provides information about when software updates state
    messages are created and sent to the management point.
  • UpdatesDeployment.log – Provides information about the deployment on the client,
    including software update activation, evaluation, and enforcement. Verbose logging
    shows additional information about the interaction with the client user
    interface.
  • UpdatesHandler.log – Provides information about software update compliance
    scanning and about the download and installation of software updates on the
    client.
  • UpdatesStore.log – Provides information about the compliance status for the
    software updates that were assessed during the compliance scan cycle.
  • WUAHandler.log – Provides information about when the Windows Update Agent on the
    client searches for software updates.
  • WUSSyncXML.log – Provides information about the Inventory Tool for the Microsoft
    Updates synchronization process. This log is only on the client computer configured
    as the synchronization host for the Inventory Tool for Microsoft Updates.

Windows Update Agent Log File

  • WindowsUpdate.log – Provides information about when the Windows Update Agent
    connects to the WSUS server and retrieves the software updates for compliance
    assessment and whether there are updates to the agent components.