ArcSDE使用问题，急……

<P>本人初学ArcGIS，遇到一些关于ArcSDE的问题：<BR>    使用ArcIMS Author连接ArcSDE，提示“The ArcSDE layers cannot be retrieved . ”，然后提示“Connection Succeeded .”。<BR>    成功执行了sdesetupmssql命令。<BR>    然后使用sdelayer命令，如：sdelayer -o add -l blocks,shape -e n -R 2 -E 504008.531249166,680188.124999412,512430.68749701,689006.562503625 -L OFF -C shape,sde,1 -P 32 -i esri_sde -s Myname -D montgomery -u sa -p 123456<BR>    执行后提示：<BR>ArcSDE 9.0 SQL Server  Build 1970 Mon Jan 31 18:13:12 PST 2005<BR>Layer    Administration Utility<BR>-----------------------------------------------------<BR>Error: Invalid database name (-162).<BR>Error: Could not create a connection.</P>
<P>sde_esri_sde.log日志信息：<BR>Connected database montgomery is a instance db.<BR>CAN'T OPEN INSTANCE: esri_sde.<BR>Spatial Engine Connection Failed (-162).<BR>Cannot Get Access to Instance esri_sde<BR>[12/07/2005 15:39:50;SdeId=0;Client=GIOMGR] Error (-162):Couldn't Start Server Task.</P>
<P>使用sdemon -o status 运行结果：<BR>ArcSDE Instance esri_sde Status on zzhuang at Thu Dec 08 14:36:10 2005<BR>-------------------------------------------------------------------------<BR>Server Connection Mode:         Accepting Connections<BR>Active Server Processes:        0<BR></P>
<P>请问各位大侠，这个是什么原因，怎样解决？谢谢。</P>

<P>这个原因很难说，最好有电脑装了ArcCatalog来测试连接</P>