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http://www.sybase.com.cn/detail?id=1094827全球领先的企业级和移动软件公司Sybase，SAP（NYSE：SAP）旗下的公司近日宣布，全新版本的企业数据管理解决方案 Sybase®Adaptive Server Enterprise® (ASE) 15.7正式上市。Sybase ASE 15.7是一款低本高效、能够处理超大数据集的关系型数据库管理系统（RDBMS）。同时，具有全新先进压缩功能的ASE 15.7允许更简洁地存储大数据量，降低了I / O次数，使得当今一流的企业无需增加更多磁盘和硬件成本，即可处理更多的交易和支持更多的并发用户。这则消息是在2011年9月12日至16日在美

http://www.oracledatabase12g.com/archives/oracle-11gr2%E5%8F%91%E5%B8%8311-2-0-3-patchset%E8%A1%A5%E4%B8%81%E9%9B%86-%E5%8F%88%E4%B8%80%E9%87%8D%E9%87%8F%E7%BA%A7%E6%9B%B4%E6%96%B0.htmlOracle 11gR2发布11.2.0.3 Patchset补丁集-又一重量级更新 By admin, on September 24th, 2011 Oracle 11gR2的Patchset 2 即11.2.0.3在美国时间9月23日发布了(23-SEP-2011)，此次的发布包括Linux 86和 Linux x86-64 2种操作系统平台。 11.2.0.3 补丁集的Patch id为10404530，该补丁集包括7个zip包，总容量达到了5 GB (慢慢

EMCA stops with "Hostname should not contain underscore _ in it and it should not be longer than 32 characters" [ID 1265731.1]Applies to: Enterprise Manager Grid Control - Version: 10.2.0.4 to 11.2.0.2 - Release: 10.2 to 11.2Information in this document applies to any platform. Symptoms EMCA or DBCA fails to install EM database console due to a server hostname of over 32 characters. In the $ORACLE_HOME/cfgtoollogs/emca/<SID>/emca_YYYY-MM-DD_HH-MM-SS-AM.log Oct 4, 2010

数据文件offline后，再online时，提示需要介质恢复，也就是需要归档日志。。。而 offline后，并无对涉及该数据文件数据库对象的dml或者ddl操作。。[@more@]

sar -d 2 6[@more@]sar

What should the value of LD_ASSUME_KERNEL be set to for Linux? [ID 377217.1] Recommended Settings for Installing Oracle Products Operating System LD_ASSUME_KERNEL setting RHAS 2.1 2.2.5 RHEL3, RHEL4, OEL4 any value from 2.4.1 to 2.4.19 SLES8, SLES9 2.4.21 RHEL5, OEL5, SLES10 Should

Requirements for Installing Oracle 9iR2 64-bit on RHEL 4 x86-64 (AMD64/EM64T) [ID 353529.1]Requirements for Installing Oracle 9iR2 64-bit on RHEL 4 x86-64 (AMD64/EM64T) 1. Install the required OS components This list is based upon a "default-RPMs" installation of RHEL AS/ES 4 update 1. When a newer "update" level is used, the RPM release numbers (such as 2.4-9.1.87) may be slightly higher (such as 2.4-9.1.93 or 2.4-9.2.37). This is fine so long as you are still usi

Requirements for Installing Oracle 9iR2 32-bit on RHEL3 [ID 252217.1]Requirements for Installing Oracle 9iR2 64-bit on RedHat 3 on x86_64 (AMD/EM64T) [ID 308588.1][@more@]

Requirements for Installing Oracle 9iR2 32-bit on RHEL3 [ID 252217.1]Requirements for Installing Oracle 9iR2 64-bit on RedHat 3 on x86_64 (AMD/EM64T) [ID 308588.1][@more@]

此问题在metalink上有文章记录Error 'su: /Bin/Bash: Too Many Open Files In System' When Switching to Non-root User on Enterprise Linux [ID 1187463.1]Applies to: Linux OS - Version: 4.4 and later [Release: OEL4U4 and later ]Linux x86-64 Symptoms You get the following error when switching to non-root user by 'su': su: /bin/bash: Too many open files in system Cause System-wide resource threshold file-max exceeded. Solution Increase the file-max value, e.g. #echo "6553600&q

Applies to: Oracle Server - Standard Edition - Version: 9.2.0.1 to 11.2.0.1 - Release: 9.2 to 11.2Oracle Server - Enterprise Edition - Version: 9.2.0.1 to 11.2.0.1 [Release: 9.2 to 11.2]Linux x86IBM: Linux on System zGeneric LinuxIBM: Linux on POWER SystemsLinux x86-64Linux Itanium Purpose This Master Note is intended to provide an index and references to the most frequently used My Oracle Support articles with respect to Linux OS Requirements for Oracle Database Software Installation.

本文转自：http://hi.baidu.com/shxr/blog/item/8e2bd488ca611a9fa4c272b3.html HP-UX基本常识 2010-02-05 14:31 1,机型 # model 9000/861/D270 2,CPU个数 # top LOAD USER NICE SYS IDLE BLOCK SWAIT INTR SSYS 0.15 0.4% 0.0% 0.6% 99.0% 0.0% 0.0% 0.0% 0.0% 3,硬盘个数 # ioscan -funC disk Class I H/W Path Driver S/W State H/W Type Description ===================================================================== disk 0 8/16/5

虚拟机中新装的rhel4u6无法用ssh客户端软件访问，但是ping命令是能ping通的。原因是rhel的防火墙开着。service iptables stopchkconfig iptables off之后ssh客户端软件就能正常访问了。[@more@]

教训：ssh或者securecrt登录到主机上时，不要看ssh或者securecrt标题中的ip地址原因：标题中的ip地址，很可能不是你当前正在操作主机，原因是ssh 命令或者rlogin命令可以远程登录到其他主机。正确的习惯是经常执行 hostname 或者ifconfig [@more@]

How to configure Client Failover after Data Guard Switchover or Failover [ID 316740.1][@more@]

The Impact of the Sqlnet Settings on Database Security (sqlnet.ora Security Parameters and Wallet Location) [ID 1240824.1][@more@]

SQL*Net & Oracle Net Services - Tracing and Logging at a Glance [ID 219968.1][@more@]

How to Configure TAF and Client Load Balancing in a Replicated Environment [ID 210596.1][@more@]

假设如下的环境1号机主机名为hosta，物理ip地址为192.168.0.12号机主机名为hostb，物理ip地址为192.168.0.2active ip(ha软件虚拟出来的ip) 地址为192.168.0.101. /etc/hosts文件中，可以有127.0.0.1这一行，但是127.0.0.1之后，不能有主机名。可以是127.0.0.1 localhost 等等2.1号主机的/etc/hosts文件，应该有如下的行：192.168.0.1 hosta192.168.0.2 hostb 192.168.0.10 cluster 3.2号主机的/etc/hosts文件，应该有如下的行： 192.168.0.1 hosta 192.168.0.2 hostb 192.168.0.10 cluster 4.1号主机中oracle_home