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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><HTML><HEAD><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=gb2312"> <META NAME="GENERATOR" CONTENT="ZH-SGML-Tools 1.0.9"> <TITLE> Linux 的 Database-SQL-RDBMS HOW-TO 文件 (PostgreSQL 物件關聯資料庫系統): 只使用一個顯示器 (monitor) 來建立多臺 PostgreSQL 電腦</TITLE> <LINK HREF="PostgreSQL-HOWTO-14.html" tppabs="http://www.linux.org.tw/CLDP/gb/PostgreSQL-HOWTO-14.html" REL=next> <LINK HREF="PostgreSQL-HOWTO-12.html" tppabs="http://www.linux.org.tw/CLDP/gb/PostgreSQL-HOWTO-12.html" REL=previous> <LINK HREF="PostgreSQL-HOWTO.html#toc13" tppabs="http://www.linux.org.tw/CLDP/gb/PostgreSQL-HOWTO.html#toc13" REL=contents><SCRIPT src="menu.js"> function BeginPage() {} function EndPage() {} </SCRIPT> </HEAD> <BODY bgcolor=#FFFFFF MARGINHEIGHT=0 MARGINWIDTH=0> <A HREF="PostgreSQL-HOWTO-14.html" tppabs="http://www.linux.org.tw/CLDP/gb/PostgreSQL-HOWTO-14.html"><IMG SRC="next.gif" tppabs="http://www.linux.org.tw/CLDP/gb/img/next.gif" ALT="Next"></A><A HREF="PostgreSQL-HOWTO-12.html" tppabs="http://www.linux.org.tw/CLDP/gb/PostgreSQL-HOWTO-12.html"><IMG SRC="prev.gif" tppabs="http://www.linux.org.tw/CLDP/gb/img/prev.gif" ALT="Previous"></A><A HREF="PostgreSQL-HOWTO.html#toc13" tppabs="http://www.linux.org.tw/CLDP/gb/PostgreSQL-HOWTO.html#toc13"><IMG SRC="toc.gif" tppabs="http://www.linux.org.tw/CLDP/gb/img/toc.gif" ALT="Contents"></A><HR><H2><A NAME="s13">13. 只使用一個顯示器 (monitor) 來建立多臺 PostgreSQL 電腦</A></H2><P> 你可疊起電腦主機及只用一個顯示器,而用一個 KWM (鍵盤、影像、顯示器)(Keyborad, Video, Monitor) (譯按∶M 是否當為鼠標?)選擇器來選擇所用電腦。這不但節省地方,也節省顯示器、鍵盤和鼠標(每份總值 100 至 500 美元),和減少混亂。<P>籍著選擇器,你可疊高多臺 PostgreSQL 服務器(開發、測試、生產)、互聯網服務器、ftp 服務器、內聯網服務器、電郵服務器、新聞服務器在一個大柜。這選擇器也可控制視窗 95/NT 和 OS/2 電腦。<P>請查看下列網址∶<UL><LI> DataComm Warehouse Inc,一天二十四小時,一星期七天都在致電 1-800-328-2261。他們提供所有品種的電腦硬件 <A HREF="javascript:if(confirm('http://www.warehouse.com/ \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.warehouse.com/'" tppabs="http://www.warehouse.com/">http://www.warehouse.com</A> 4 埠 手動 KVM 選擇器 (PS/2) 大約 $89.99 Part No. DDS1354</LI><LI> Network Technologies Inc <A HREF="javascript:if(confirm('http://www.networktechinc.com/servswt.html \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.networktechinc.com/servswt.html'" tppabs="http://www.networktechinc.com/servswt.html">http://www.networktechinc.com/servswt.html</A> (120 美元/PC 8 埠) 的清單中包括 'Server Switches' 和 'Video only switches' </LI><LI> Scene Double Inc, 英國 <A HREF="javascript:if(confirm('http://www.scene.demon.co.uk/qswitch.htm \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.scene.demon.co.uk/qswitch.htm'" tppabs="http://www.scene.demon.co.uk/qswitch.htm">http://www.scene.demon.co.uk/qswitch.htm</A> </LI><LI> Cybex corporation <A HREF="javascript:if(confirm('http://www.cybex.com/ \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.cybex.com/'" tppabs="http://www.cybex.com/">http://www.cybex.com</A> </LI><LI> Raritan Inc <A HREF="javascript:if(confirm('http://www.raritan.com/ \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.raritan.com/'" tppabs="http://www.raritan.com/">http://www.raritan.com</A> </LI><LI> RealStar Solutions Inc <A HREF="javascript:if(confirm('http://www.real-star.com/kvm.htm \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.real-star.com/kvm.htm'" tppabs="http://www.real-star.com/kvm.htm">http://www.real-star.com/kvm.htm</A> </LI><LI> Belkin Inc <A HREF="javascript:if(confirm('http://www.belkin.com/ \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.belkin.com/'" tppabs="http://www.belkin.com/">http://www.belkin.com</A> </LI><LI> Better Box Communications Ltd. <A HREF="javascript:if(confirm('http://www.betterbox.com/info.html \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.betterbox.com/info.html'" tppabs="http://www.betterbox.com/info.html">http://www.betterbox.com/info.html</A> </LI><LI> 到附近的硬件商鋪查詢“Server Switch”或稱“KVM Auto Switches”。</LI></UL> <P>在 yahoo 搜尋器中找出更多有“Server Switches”或“KVM Switches”的公司。<P>每個 PostgreSQL 資料庫服務器最好用一部專用的 unix 電腦,以增強表現。任何其他程序/行程都不要在這電腦上執行。閱讀你所住地方的報章的商業版找出有哪些商鋪售賣 Intel 電腦和 13 □單色螢幕(十分廉宜的螢幕)。你只需要硬件,而<B>不需</B>微軟視窗/DOS(節省約 150 美元)。資料庫服務器不需要彩色顯示器,因為你可在一個彩色的個人電腦上遙控管理。在以下地方取得 RedHat(或其他套件散布)Linux 的光碟∶<UL><LI>Linux System Labs 網址∶<A HREF="javascript:if(confirm('http://www.lsl.com/ \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.lsl.com/'" tppabs="http://www.lsl.com/">http://www.lsl.com/</A> 7 美元</LI><LI>Cheap Bytes Inc 網址∶<A HREF="javascript:if(confirm('http://www.cheapbytes.com/ \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.cheapbytes.com/'" tppabs="http://www.cheapbytes.com/">http://www.cheapbytes.com/</A> 7 美元</LI></UL> 確保你購買的硬件被 RedHat Linux 支持。購買前在 RedHat 的 ftp 站找出獲推薦的硬件,如 SCSI 配接器和顯示卡。用大約六百美元便可得到一臺強勁的 Intel 電腦,用 RedHat Linux 來執行 PostgreSQL。從視窗 95、OS/2、Unix Motif、瀏覽器(如 Redbaron、Opera、Netscape 及其他廿多個)經 odbc/jdbc/perl/tcl 來連接 PostgreSQL。(瀏覽器正迅速成為標準的客戶 (client)。)<P>用這個方法,你可只用一個顯示器和一個鍵盤來控制很多部電腦!<P>以下有關“Server Switch”的資料<B>節錄自 Networktechnic Inc</B><P>撥 800-742-8324 預訂 (在美國免電話費)<P>想收到我們的產品目錄的話,請把你的地址電郵到∶sales@networktechinc.com <P>只用一個鍵盤、顯示器和鼠標來控制多部電腦這些電子選擇器容許只用一個鍵盤、顯示器和鼠標來控制最多六十四部電腦。嵌入 (embedded) 的微電腦所有時間都模擬在連接了的電腦上的鍵盤、顯示器和鼠標的存在。<P>特性及用途<P><UL><LI>鍵盤、控制臺或遙控</LI><LI>9 針 D 串聯 或 6 針 miniDIN 鼠標支持 </LI><LI>5 針 DIN 或 6 針 miniDIN 鍵盤支持 </LI><LI>1600x1200 解像度而沒有失真</LI><LI>使用標準的電線</LI><LI>桌面或架裝 </LI></UL> <P>規格□鍵盤<P><UL><LI>所有連接器皆為 female</LI><LI>5 針 DIN 或 6 針 miniDIN </LI><LI>任何時候都可使所有 PC 軟開機或硬開機 (hard or soft boot)</LI></UL> <P>控制□按鈕<P><UL><LI>觸動一個制來接到那部電腦</LI><LI>按緊一個制超過 0.5 秒進入 SCAN、BROADCAST 或 COMMAND 模式</LI><LI>前部的 LED 顯示鍵盤的操作模式</LI><LI>鍵入 CTRL+* 來進入 COMMAND 模式</LI><LI>提供 SCAN、BROADCAST 或 COMMAND </LI></UL> <P>鼠標<P>* 9 針 D 串聯 <UL><LI> NTI 開關對所有個人電腦模擬微軟串聯鼠標</LI><LI> 鼠標的 9 針 D male </LI><LI> 個人電腦的 9 針 D female </LI></UL> <P>* 6 針 miniDIN <UL><LI> NTI 開關對所有個人電腦模擬為 IBM PS/2 系列鼠標</LI><LI> 所有連接器皆為 female</LI></UL> <P>有線遙控<UL><LI>可自行選購□必須購買</LI><LI>和按制操作相同</LI></UL> <P>顯示器□VGA <UL><LI>頻寬為 150 MHz </LI><LI>1600X1200 點解像度而不變壞</LI><LI>所有連接器皆為 female</LI></UL> <HR><A HREF="PostgreSQL-HOWTO-14.html" tppabs="http://www.linux.org.tw/CLDP/gb/PostgreSQL-HOWTO-14.html"><IMG SRC="next.gif" tppabs="http://www.linux.org.tw/CLDP/gb/img/next.gif" ALT="Next"></A><A HREF="PostgreSQL-HOWTO-12.html" tppabs="http://www.linux.org.tw/CLDP/gb/PostgreSQL-HOWTO-12.html"><IMG SRC="prev.gif" 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