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Lecture 10 the user experience


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Lecture 10 the user experience

  1. 1. Lecture 10: The UserExperienceNetwork Design & Administration
  2. 2. What aspects affect the usermost?• Disk space • Local • Shared Network Design & Administration• Printing• Logging in/Access to resources• Using applications• Email 2• Overall speed of task completion
  3. 3. Disk Space• User machines may have comparatively large disks • Temptation for users to store files locally Network Design & Administration • Unlikely in ‘hot-desking’ situation • Problems?• Better to use servers for storing user files • Better control of backup/restore • Can apply disk quotas 3
  4. 4. Windows Disk QuotasThree stages:1. Enabling disk quotas on a volume.2. Configuring quota defaults. Network Design & Administration3. Creating quota entries.Step 1:• Select NTFS volume for quota application using Explorer and open Properties dialog.• Or use disk management 4 snap-in to MMC.
  5. 5. Windows Disk Quotas – Step 2– Enable Management• Enable management – has to be done volume Network Design & Administration by volume• Note that in this case, the system has been set to deny users disk space when Quota 5 exceeded
  6. 6. Windows Disk Quotas – Step 3- Configuring• You must select an appropriate default size• You may also set a Network Design & Administration size that generates a warning to the user• You can also configure the system to log these events 6
  7. 7. Windows Disk Quotas –Creating quota entries[2]• These are exceptions to the default rule• Allow a user to be given more or less than the default Network Design & Administration• Can create new entries, or modify existing ones (by double clicking the entry) • (Ensure you select appropriate units!)• New quota entries can be generated by selecting a number of users at once, but 7 the quotas are applied individually
  8. 8. Windows Disk Quotas –Creating quota entries[1] Network Design & Administration 8
  9. 9. Linux Disk Quotas[3][4][5]• Enable quotas by adding fields into etc/fstab file to allow usr/grp quotas e.g. /dev/hda2 /home ext3 defaults,usrquota,grpquota 1 1• Remount the volume (umount, then mount – or simply Network Design & Administration reboot)• Run quotacheck –avug to set up the quota files and check the volume for current usage (should re-run regularly to keep stats accurate)• Assign quotas for users or groups using edquota• Use repquota to generate reports on current quota usage 9
  10. 10. Disk Quotas – impact on usersand administrators• Users can find it frustrating if sizes set too low for typical usage• Investigate how users function before setting level Network Design & Administration• Users can be given a warning – so need education as to how to act in response• Administrators may get a lot of user complaints if set too low – but if not set, space may run out arbitrarily 10• Managing and monitoring is time consuming (see in later session)
  11. 11. File Server Resource Manager[6]• Provides finer grain control of quotas• Provides more means to warn users• Not covered here! Network Design & Administration 11
  12. 12. Printing and the user• As before, assume that we do not have individual printers for users• Must balance need for users to have access to printing with costs of paper, ink, printers Network Design & Administration• Printer properties define default behaviour for all users of the printer• For high throughput, may use printer pooling• For more control, may use multiple logical printers for a single printer 12
  13. 13. Shared Printers• Remember - that after installing the printer on the print server, have to share it, then Network Design & Administration connect clients• Printer properties has tab for sharing• Additional drivers must be specified if clients running older O/S 13
  14. 14. Other Useful Information in Properties• Printer location can be specified• Users can check printer capabilities• Paper of different sizes can be assigned to specific trays Network Design & Administration 14
  15. 15. Client Access to Printers• Make available via: • Add Printer Wizard (where Search can be specified) • Browsing via Windows Explorer • Searching Active Directory Network Design & Administration• Can search with a range of criteria e.g. location, double-sided capable, stapling etc. – key to efficiency in a business• However, users need to know that they can do this – must be trained.• Must ensure (via printer permissions) that users cannot change default behaviour – though they may choose to set behaviour for a specific print job. 15
  16. 16. Client Access to Printers using VB.Script • Can use a “logon” and “logoff” script. • Script associated to user account – put on a shared drive to allow all users access. • As soon as user logs in/out, script is executed.Logon script: Network Design & Administrationsub loadprinters() set network = createobject("") network.AddWindowsPrinterConnection printerservercolourlaser network.AddWindowsPrinterConnection printerserverbwlaserend subLogoff script:sub unloadprinters() set network = createobject("") network.RemovePrinterConnection ("printerservercolourlaser", true, true) 16 network.RemovePrinterConnection ("printerserverbwlaser", true, true)end sub
  17. 17. Printer Pooling• Multiple physical printers used as a single logical printer – so job appears on whichever printer Network Design & Administration available• All printers must be able to use same driver, since only 1 logical printer• Should be physically close together since user will not know which one it 17 prints to
  18. 18. Multiple Logical to SinglePhysical Printer• Used to allow different conditions to be set for different groups of users to a single physical printer• Can set different priorities (99 highest, 1 lowest) to the logical printers Network Design & Administration• Can set different times for access• Can also set different defaults e.g. trays/paper, double sided• Need to ensure the different logical printers have their ACLs set appropriately (e.g. to allow Executives access to all, but Clerks access only to certain logical printers) 18
  19. 19. Advanced Printer Properties Limits when will print Network Design & AdministrationLowest priority 19
  20. 20. User Profiles• Allow user to have customised environment, independent of other users• Contains: • User-stored documents and files Network Design & Administration • Application configurations and settings • Desktop and environment settings • Control Panel settings and configurations• Can be Local, Roaming or Mandatory 20
  21. 21. User Profiles[7]• Local • Retained in Documents & Settings for that PC• Roaming • Held on some server (if domain controller, always available, Network Design & Administration but if on member server, traffic less likely to delay domain authentications) • Local version in ntuser.dat compared with remote, and differences sent from server • Can get big and slow • If app stores info in Local Settings rather than Registry, that is not kept in Roaming Profile, so app can fail on other clients• Mandatory 21 • Change ntuser.dat to – makes it read only
  22. 22. References1.,39044904 ,61956452,00.htm2. MOAC 290, Ch123. Network Design & Administration disk-quotas.html4. ml5. Manual/admin-primer/s1-storage-quotas.html6. 22