Chapter 14 PDF: Performance Bottlenecks and Monitoring Tools

CHAPTER 14 PERFORMACE BOTTLENECK bottleneck is a part that impacts server performance some bottlenecks include processor disk subsystem memory network subsystem potential bottlenec...

CHAPTER 14 PERFORMACE BOTTLENECK bottleneck is a part that impacts server performance some bottlenecks include processor disk subsystem memory network subsystem potential bottlenecks depend on the servers role fileserver relies on fast disk and network subsystem application server may require fast CPU MONITORING TOOLS IN WINDOWS SERVER task manager displays Realtime usage of processor, memory, disk and network displays which processor are overconsuming resources CHAPTER 14 1  can terminate unresponsive apps disable apps that start automatically resource manager provides a more detailed info than the task manager performance monitor has hundreds of performance related counters EVENT VIEWER shows you logs that can impact performance create custom views trigger alerts review details of each event Major event viewer logs application logs security logs setup logs system logs forwarded events other logs PERFORMACE MONITER supports real time performance monitoring and logged monitoring i can track local or remote computers performances counters data collector sets store data in log files use to create baselines used to spot trends PERFORMANCE MONITER VIEWS displays real time data in three views CHAPTER 14 2  line chart histogram report MONITERING AD PERFORMANCE IN PERFORMANCE MONITER domain controllers provide authentication, directory search, and replication services track with NTDS object counters DS directory reads/sec directory searches/sec directory writes/sec DRA inbound bytes total/sec outbound bytes total/sec track with security system wide statistics object counters Kerberos authentication NTLM authentication OTHER HANDY TOOLS MSconfig MSinfo BACK UP AND RESTORE ACTIVE DIRECTORY backup means when you make copies of data so the copied data can be used to restore the original after a data loss event backups can restore an entire system or a small set of files or objects Always back up your AD Database like its contents, users, computers, servers its a complicated database that could become corrupt BACKUP MEDIA LOCATIONS CHAPTER 14 3  magnetic tapes hard disks DVDs cloud TYPES OF SYSTEM DATA TO BACKUP AD database very important to backup AD does have built in capabilities that help it from being corrupted or lost AD supports up to a little over 2 billion objects and 16 tb in size AD files stored in C:\Windoes\NTDS\ ntds.dit is that actual AD DB An edb.log file is a transaction log file used by Microsoft database systems to keep track of changes before they are permanently saved. System State data its a collection of components that are not contained in a single file can be easily backed up by system state TYPES OF SYSTEM DATA SYSVOL is a shared directory login scripts: stores the logon scripts administrated from AD users and computers and group policies group policy: configuration settings that control the working environment of users and computer account distributed file system (DFS) staging folder and files: synchronizes data and files between domain controllers USING WINDOWS BACKUP windows backup allows you to back up the server can install it via server manager CHAPTER 14 4  to run backup, must be member of the backup operator or administrators group you can create a one-off backup or create a backup schedule PERFORMING AN ACTIVE DIRECTORY RESTORE two types of restores nonauthoritative restore only use this option when the corruption has only occurred on a single DC and has not been replicated to other DC’s to perform one you will boot into a directory service repair mode by going into boot mode authoritative restore override type restore where the information on the restored domain controller is replicated out to the other domain controllers to perform an authoritative restore start the backup program to recover ACTIVE DIRECTORY SNAPCHOTS 1. create one with ntdsutil.exe 2. mount the snapshot with the active directory database mounting tool 3. view the objects within the snapshots(read only mode) using AD users and computers 4. when done, dismount it ACTIVE DIRECTORY RECYCLE BIN CHAPTER 14 5 CHAPTER 14 6