CARNEGIE MELLON UNIVERSITY

           
              

COMPUTING SERVICES STATISTICS

           

FISCAL YEARS 1993 TO 1997

             
              

Change in Network Connections

  

Total 1994

 

Total 1995

 

Total 1996

 

Total 1997

 

Total 1998

 

Token Ring

   

1,138

 

703

 

594

 

0

 

0

 

Local Talk

   

2,761

 

2,051

 

2,167

 

1,583

 

0

 

  10-Base-T

         

6,206

 

9873

 

  ThinEthernet

         

808

 

201

 

  Lattisnet

         

1,133

 

297

 

  Ethernet

         

472

 

419

 

  Switched-10

         

957

 

2145

 

  100-Base-T

         

125

 

241

 

  Switched-100

         

120

 

206

 

Total Ethernet

   

3,084

 

4,436

 

6,905

 

9,821

 

13,382

 

Total Network Connections

   

6,983

 

7,190

 

9,666

 

11,404

 

13,382

 

Total Asynchronous Connections

  

573

 

324

 

9

 

0

 

0

 

TOTAL

   

7,556

 

7,514

 

9,675

 

11,404

 

13,382

               

Andrew Usage

   

1994

 

1995

 

1996

 

1997

 

1998

 

Number of Andrew systems IDs

  

12,876

 

18,014

 

21,178

 

18,927

 

24,306

 

Average weekly authorized unique users

  

7,617

 

8,553

 

9,862

 

10,543

 

10,861

 

Peak weekly authorized unique users

  

8,973

 

10,356

 

11,659

 

12,793

 

13,062

 

Average weekly UNIX server logins*

  

29,000

 

30,424

 

39,745

 

49,444

 

60,839

 

Peak weekly UNIX server logins*

  

#N/A

 

#N/A

 

64,896

 

80,702

 

136,442

 

Average weekly UNIX unique user logins

  

3,300

 

3,417

 

4,011

 

4,404

 

4,905

 

Peak weekly  UNIX unique user logins

  

#N/A

 

#N/A

 

5,210

 

5,725

 

5,771

 

Average number of connected workstations*

 

790

 

829

 

1,040

 

1,280

 

1,407

 

Peak number of connected workstations*

  

885

 

967

 

1,312

 

1,592

 

2,007

 

Average total weekly PC server sessions

  

74,000

 

140,781

 

105,213

 

146,578

 

138,543

 

Peak total weekly PC server sessions

  

#N/A

 

#N/A

 

174,629

 

256,086

 

225,567

 

Average total weekly PC unique users

  

#N/A

 

7,683

 

6,698

 

7,305

 

7,094

 

Peak total weekly PC unique users

  

#N/A

 

#N/A

 

8,446

 

8,978

 

9,129

 

Peak Unique Cyrus Mail Users

  

#N/A

 

#N/A

 

285

 

944

 

1,962

 

Average Unique Weekly Cyrus Mail Users

 

#N/A

 

#N/A

 

176

 

726

 

2,939

 

Peak Total Sessions - Cyrus

  

0

 

0

 

1,887

 

222,146

 

328,758

 

Average Total Sessions - Cyrus

  

0

 

0

 

9,728

 

106,811

 

648,527

              
 

Andrew Usage Notes: Cyrus was a pilot during academic year 1995-96.  1996 data based on sample period April 1996 - June 1996.

              

Computer Store Purchases (CPUs)

  

1994

 

1995

 

1996

 

1997

 

1998

 

Non Departmental

   

864

 

775

 

271

 

311

 

607

 

Departments

   

867

 

909

 

742

 

763

 

998

 

TOTAL

   

2,595

 

2,468

 

1,284

 

1,385

 

1,605

               

Computers in Public Clusters

   

1994

 

1995

 

1996

 

1997

 

1998

 

Workstations

            
 

SGI Indy Modelers

   

0

 

0

 

10

 

10

 

10

 

SGI Octanes

   

0

 

0

 

0

 

10

 

10

 

HP712/100's

   

0

 

0

 

25

 

25

 

0

 

Sun Ultra 140's

   

0

 

0

 

38

 

38

 

38

 

SunSparc5/85's

   

33

 

33

 

33

 

34

 

34

 

Sun Ultra 170's

   

0

 

0

 

0

 

18

 

18

 

DECstation 5000

   

20

 

20

 

20

 

0

 

0

 

DECstation 3100

   

75

 

74

 

0

 

0

 

0

              
 

Macintosh

             
 

PowerMac 8600

   

0

 

0

 

0

 

8

 

8

 

PowerMac 7200

   

0

 

0

 

105

 

104

 

104

 

PowerMac 7100

   

50

 

161

 

61

 

61

 

0

 

Mac IIcs

   

18

 

0

 

0

 

0

 

0

 

Mac IIci

   

85

 

54

 

0

 

0

 

0

 

Mac LC III

   

20

 

20

 

0

 

0

 

0

 

Mac II

   

8

 

0

 

0

 

0

 

0

              
 

Windows

             
 

Dell Optiplex GX Pro

   

0

 

0

 

25

 

23

 

23

 

Dell Optiplex 5133 GXM

   

0

 

0

 

25

 

23

 

23

 

Dell Pentium

   

0

 

22

 

20

 

0

 

0

 

Intel Pentium

    

0

 

0

 

0

 

10

 

33

 

DEC 486

   

22

 

13

 

3

 

0

 

0

 

IBM PS/2

   

12

 

0

 

0

 

0

 

0

              
 

TOTAL

   

343

 

397

 

365

 

364

 

301

              
 

* Denotes estimates for the academic year