Struktura soedineniya servera baz dannyh Informix-OnLine c klientskoj rabochej stanciej Windows 3.11, Windows 95
- Podsoedinenie k serveru baz dannyh INFORMIX - OnLine
- Komponenty ispol'zuemye pri soedinenii
- Trebovanie k apparature i programmnomu obespecheniyu
Pri soedinenii s serverom baz dannyh INFORMIX - OnLine , klientskaya rabochaya stanciya ispol'zuet protokol TCP/IP. INFORMIX - NET for Windows dolzhna soedinyat'sya cherez set' s INFORMIX - OnLine serverom bazy dannyh tak , kak pokazano na ris. 1. INFORMIX - NET for Windows ispol'zuet INFORMIX - STAR na UNIX mashine dlya ustanovki soedineniya s serverom baz dannyh versii 5.0 i vyshe. (V versiyah INFORMIX - OnLine vyshe 5.0 komponenta INFORMIX - STAR kak otdel'nyj produkt ne ispol'zuetsya , ona uzhe vstroena v yadro.)
Process soedineniya v etom sluchae opredelyaetsya sleduyushchimi shagami:
- INFORMIX-NET for Windows ustanavlivaet soedinenie s INFORMIX-STAR.
- INFORMIX-STAR zapuskaet na servere baz dannyh INFORMIX-OnLine v 5.0 process i dannyj server baz dannyh nasleduet setevoe soedinenie ot INFORMIX-STAR.
- Server baz dannyh INFORMIX-OnLine soedinyaetsya s rabochej stanciej ( klientom ). INFORMIX-STAR vozvrashchaetsya v sostoyanie ozhidaniya novogo klienta.
- INFORMIX-NET for Windows - yavlyaetsya modulem setevogo programmnogo obespecheniya , kotoryj pozvolyaet klientskim prilozheniyam , vypolnyayushchimsya na rabochej stancii , podsoedinyat'sya k serveru baz dannyh INFORMIX-OnLine , rabotayushchem pod upravleniem operacionnyh sistem UNIX , NT, NOVELL NetWare. INFORMIX-NET for Windows pozvolyaet vam vypolnyat' neskol'ko klientskih prilozhenij , pri soedinenii s odnim ili neskol'kimi serverami baz dannyh , ispol'zuya odin protokol. INFORMIX-NET for Windows peredaet SQL zaprosy ot klienta k serveru baz dannyh , a tak zhe obespechivaet peredachu dannyh mezhdu nimi.
- INFORMIX-STAR - programmnyj produkt setevogo vzaimodejstviya , kotoryj dolzhen byt' zapushchen na UNIX servere dlya obespecheniya soedineniya.
- INFORMIX-OnLine - server baz dannyh zapushchennyj na servere.
Rabochaya stanciya ( klient ) pri ispol'zovanii dannogo vida soedineniya dolzhna udovletvoryat' sleduyushchim trebovaniyam po apparatnomu i programmnomu obespecheniyu:
| Resurs | dlya 16-ti razr. versij | dlya 32-h razr. versij |
|---|---|---|
| Processor | 386 ili vyshe | 486 ili vyshe |
| Versiya MS-DOS | Versiya 5.h ili 6.h. | - |
| Versiya MS Windows | Windows 3.1 v rasshirennom rezhime. | Windows 95/NT |
| Protokol | Novell IPX/SPX , lyuboj TCP/IP sovmestimyj s Windows Sockets 1.1 | Novell IPX/SPX , lyuboj TCP/IP sovmestimyj s Windows Sockets 1.1 |
| Razmer RAM | 4 Mv RAM, rekomenduetsya 8 Mv | 8 Mv RAM, rekomenduetsya 12 Mv |
| Svobodnoe prostranstvo na diske | 1.5 Mv | ot 5 MV |
Menedzhery pamyati
Esli vy rabotaete v MS Windows 3.11 v rasshirennom rezhime, v vashej sisteme dolzhen prisutstvovat' menedzher pamyati. INFORMIX-NET for Windows podderzhivaet sleduyushchie menedzhery pamyati:
- Microsoft HIMEM.SYS versii 3.1
- Qualitas 386 MAX versii 6.0
- Quarterdeck Office Systems QEMM-386 versii 6.01