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Linux下判断cpu物理个数、几核
自己服务器的输出1. 查看物理CPU的个数#cat /proc/cpuinfo |grep "physical id"|sort |uniq|wc -l12. 查看逻辑CPU的个数#cat /proc/cpuinfo |grep "processor"|wc -l83. 查看CPU是几核#cat /...
分类:系统相关   时间:2014-07-26 00:48:06    阅读次数:383
物理写的判断 & 介质恢复 & 实例恢复 & 增量检查点
物理写的检测:select*fromv$sysstatwherelower(name)like‘physicalwrites%‘;physicalwrites89119//我一共写了多少块select*fromv$sysstatwhereupper(name)like‘DBW%‘;104DBWRcheckpointbufferswritten817312//通过检查点写了多少块。那你就可以用bufferwriter/physicalwriters..
分类:其他好文   时间:2014-07-25 19:16:42    阅读次数:288
MySQL备份和还原系列一:备份类型
一、mysql备份类型1、按照mysql服务器状态cold离线备份,读、写操作均中止warm仅可执行读操作hot读、写操作不受影响2、按照数据一致性consistentinconsistent3、按照备份数据格式logical备份sql语句,在恢复的时候执行备份的sql语句实现数据库数据的重现physical文件系统层面直..
分类:数据库   时间:2014-07-23 21:16:27    阅读次数:287
Oracle 11G DataGuard ORA-16086问题修复详细过程
1,问题描述,standby从库没有应用redo日志Tue Jul 22 09:05:07 2014RFS[8852]: Assigned to RFS process 12956RFS[8852]: Identified database type as 'physical standby': Client is ARCH pid 16028Tue Jul 22 09:05:09 2014RFS...
分类:数据库   时间:2014-07-23 16:37:52    阅读次数:887
Configure mutiple IBM HTTP Server / Other Apache based WEB server on 1 physical server (Section 3)
This Section will continue the actual configure for IHS related files.3) Copy the httpd.conf file to httpd2.conf, and modify them.Now Virtual IP have ...
分类:Web程序   时间:2014-07-19 20:10:57    阅读次数:307
Configure mutiple IBM HTTP Server / Other Apache based WEB server on 1 physical server (Section 1)
It's very simple to configure a IBM HTTP Server / Apache service on a server. But sometimes, considering the cost or any other reason, we need to sha....
分类:Web程序   时间:2014-07-19 20:09:56    阅读次数:313
Configure mutiple IBM HTTP Server / Other Apache based WEB server on 1 physical server (Section 2)
Continue from the last article......2) Confirmed the 80 port of the new added IP is not listened by any other services.Why need to test this? This is....
分类:Web程序   时间:2014-07-19 20:06:37    阅读次数:354
JspSmartUpload 实现上传
JspSmartUpload 实现上传 save() saveAs() 相对路径 SAVE_VIRTUAL 绝对路径 SAVE_PHYSICAL...
分类:Web程序   时间:2014-07-18 22:02:24    阅读次数:217
Share single RDM between multiple VM's in ESX
1.Create a VM01 on esx01,Create a VM02 on esx02 2.Create the RDM on your VM01 (using the virtual, not physical)3.Add new disk to VM02 (select existing...
分类:其他好文   时间:2014-07-16 16:46:24    阅读次数:203
关于linux内存管理
Linux的内存管理主要分为两部分:物理地址到虚拟地址的映射,内核内存分配管理(主要基于slab)。物理地址到虚拟地址之间的映射1、概念 物理地址(physical address) 用于内存芯片级的单元寻址,与处理器和CPU连接的地址总线相相应。——这个概念应该是这几个概念中最好理解的一个,可.....
分类:系统相关   时间:2014-07-12 13:24:59    阅读次数:306
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