SQL*NET at F. Hemmer. Computers Cray X/MP 48 (UniCOS) IBM 3090/600+6VF (VM/XA) Siemens 7890 (VM/HPO)...
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Transcript of SQL*NET at F. Hemmer. Computers Cray X/MP 48 (UniCOS) IBM 3090/600+6VF (VM/XA) Siemens 7890 (VM/HPO)...
SQL*NETat
CERN
F. Hemmer
Computers
• Cray X/MP 48 (UniCOS)
• IBM 3090/600+6VF (VM/XA)
• Siemens 7890 (VM/HPO)
• 200 VAXes, µVAXes and VaxStations (VMS)
• 30 VAXes, µVAXes and VAXStations (Ultrix)
• 150 Apollos
• 10 Suns
• 1000 IBM PC's (DOS, Xenix)
• 1200 Macs (MacOS)
Protocols
• TCP/IP, UDP/IP
• Decnet
• VTAM, SNA
• SPX/IPX
• Appletalk
SQL*NET TopologySQL*NET Topology
MacMacIBM PCIBM PCIBM PCIBM PCIBM PCIBM PCIBM PCIBM PCIBM PCIBM PCIBM PCIBM PC
MacMacMacMacMacMacMacMacMacMac
Sun Sun
IBM PCIBM PC
Mac Mac
ApolloApollo
NovellNovellFastpathFastpath
LEP
ApolloApollo
RT PCRT PC
CentralVAX/VMSCluster
CentralVAX/VMSCluster
IBM 3090/6006 VF - VM/XA
IBM 3090/6006 VF - VM/XA
Siemens 7890 SVM/HPO
Siemens 7890 SVM/HPO
UltrixUltrix
LAVCLAVC
8232
3725
3732
IP
CTC
SNA (LU 6.2)VTAM
...
Decnet
LAVCLAVCLAVCLAVC
UltrixUltrix
PSUltrixUltrix
UltrixUltrix
UltrixUltrix
PC's and MAC's
PC's and MAC's
• Single user operating system
• Monotasking operating system
• Limited (expensive) disk space availabililty
• Usually no native networking
• Availability of resource sharing systems
• Very good dedicated user interface
Workstations
Workstations
• Multitasking operating system
• Multiuser operating system
• Higher disk space availability
• Native networking
• Resource sharing by means of standards
• Good (distributed) windowing interface
• A lot of CPU dedicated to the user interface
Mainframes
Mainframes
• Multitasking operating system
• Multiuser time-shared operating system
• High (cheap) disk space availability
• No native multi-vendor networking
• Resource sharing by means of standard protocols
• Weak user interface
• Little CPU used for the user interface
The LEP Control System
The LEP Control System
LEP SPS
Computer Centre
PCR
Domain
Pbar
Lab and offices
Dev
Software Architecture
Software Architecture
IBM PC/AT PCAApollo
IBM
RTPC
Application Application Application Application
SQL*NetSQL*NetRPC client RPC client
RPC Servers
ApplicationServers Oracle
SQL*Net
SQL*Net
DataBaseServer
OracleServer
Problems
• Client only installations
• Versions
• Monitoring
• Homogeneity
• Remote IOR
SQL*NET TopologySQL*NET Topology
MacMacIBM PCIBM PCIBM PCIBM PCIBM PCIBM PCIBM PCIBM PCIBM PCIBM PCIBM PCIBM PC
MacMacMacMacMacMacMacMacMacMac
Sun Sun
IBM PCIBM PC
Mac Mac
ApolloApollo
NovellNovellFastpathFastpath
LEP
ApolloApollo
RT PCRT PC
CentralVAX/VMSCluster
CentralVAX/VMSCluster
IBM 3090/6006 VF - VM/XA
IBM 3090/6006 VF - VM/XA
Siemens 7890 SVM/HPO
Siemens 7890 SVM/HPO
UltrixUltrix
LAVCLAVC
8232
3725
3732
IP
CTC
SNA (LU 6.2)VTAM
...
Decnet
LAVCLAVCLAVCLAVC
UltrixUltrix
PSUltrixUltrix
UltrixUltrix
UltrixUltrix
Performance
Performance
KB
ms
Decnet
Tcp/Ip
Local0
100
200
300
400
500
600
0 10 20 30 40 50 60 70
Conclusions
• Availability
• Perfomance
• Better use of computers
• Client only installations
• Distributed Oracle not yet mature