Chapter 8

1. Chapter 8 Managing shared folder & data storage

2. Introduction • Program codes and other data is saved in your hard disk as a file. • Every OS has its own way to organize these files . • Windows XP have 3 basic divisions for the data/program: • Files • Folders • Drives

3. File • A collection of information that you create while you work on a computer. • Files are made up of the file name and extensions. Ex: file3.doc • ‘.doc’ is recognized as an extension for Microsoft word document and OS will use the application to open the file.

4. Folder • You can store a file in a folder and one folder can be placed in another folder creating subfolders. • Helps you to organize computer files into groups. • Windows XP stores its important files in Windows folder usually found in C drive.

5. Drives • Files and folders are stored on drives & it holds a large amount of data and programs. • Available drives: • Hard drive • Floppy drive • Flash drive • CD ROM drive

6. Windows XP Files & Folders sharing • Multiple computers connected together with LAN, makes its possible for file & folder sharing. • Computer need to be configured to share files & folders enabling user to copy/read the shared files from another location via your local computer. • One can only access sharing folders and files if they have appropriate permissions. • Windows XP has a file sharing user interface for enabling simple files & folders sharing. • NTFS allows for more control over shared folders & files.

7. Simple File Sharing • By default its always turned ‘on’ on Win XP Pro computers that are joined to workgroup. • For those that are joined to domain only uses the classic file sharing and security interface. • If its turned ‘off’, you will have more control over the permissions to individual users. • When you turn ‘off’ the simple file sharing, the Shared Document feature is not turned off!!!

8. Level of access to shared files & folders • Windows XP Pro provides 5 levels of access with Level 1 being the most secure & Level 5 the least secure & allows public to view & change the data.

9. Level 1 • Can be applied to ‘My Documents’ folder & no body else can open/read any file or folder contained in My Documents folder. • Not even the administrator account can open it. • All subfolders that are in that folder & marked as private remains as private unless you change the parent folder permissions.

10. Level 2 • Owner of the files/folders as well as the administrator has the permission to read & write & others who is not involved in the creation of that file/folder can’t access. • It is default permission for each user’s My Documents folder on Win XP Pro.

11. Level 3 • Files & folders that are shared locally on a particular Win XP Pro machine by placing them in ‘shared documents’ folder of Win XP. • Can be read/modified & deleted by local computer administrators. • Other restricted users can only view & read files.

12. Simple File Sharing Access level Rights

13. Level 4 & 5 (sharing over the network) Level 4 • Everybody has read permission but can only write to it if special permission is given. • All local users including the guest can read the files but cannot modify the content over the network. Level 5 • It is not a secure access level & should be avoided unless necessary. • Allows any user(local & remote) to read/write /change or delete a file in the folder, even guest account holder!

14. Files & folder sharing guidelines • Advisable to only share folders over the network that users on the other computers must access. • Do not share system files & important Windows folder. • Do not share C: drive as whole where your OS is installed. • Read only devices like CD ROM shared at access level 4 & 5 only.

15. Disk Mapping in Win XP Pro • Files & folders in a network drive does not exist in the local machine but another computer which is connected via network. • Network drive can be assigned and accessed by drive name & letters as local hard disk drives.

16. Disk Mapping in Win XP Pro

17. Mounted drives • Is a drive that is mapped to an empty folder on a volume that uses the NTFS file system. • It functions as the same way as other drives, but they are assigned drive paths instead of drive letters. • Advantage over mapped network? – mounted drives are not subject to the 26 drive letter limit for local drives. • Makes data more accessible & better flexibility • Provide additional disk space for your temporary files

18. Data backup & restore • Data backup – the process of creating a copy of programs or files for later retrieval on a disk to a separate location for safe keeping. • Backup utility helps you protect data from accidental loss when your system faces hardware / storage media failure.

19. Using Backup to do the following • Archive selected files & folders on your hard disk • Restore the archived files & folders to hard disk / other disk • Make a copy of any remote storage data and any data in mounted drives • Schedule regular backups to keep your achieved data up to date. • Use Automated System Recovery to save & restore all the system files & configuration settings needed to recover from system failure. • Make a copy of your computer’s System State, which includes the system files, the registry, component services, active directory database & the Certificate Services database. • Make a copy of your computer’s system partition, boot partition & files needed for starting up your system.

20. Backup Modes • Launch Windows XP Backup and Restore Utility & you can select one of these modes: • Wizard mode • Advanced mode

21. Types of backup operations • There are 5 types of backups to meet different backup need. • Normal Backup • Copy Backup • Incremental Backup • Differential Backup • Daily Backup

22. Types of backup operations

23. Types of backup operations

24. Types of backup operations

25. Restoring data • Goal of all backup jobs is to restore corrupt / loss data.