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Performance and Tuning on the Solaris 6 7 8
Performance Tuning for SolarisWhen a system is running slowly and performance is degrading, it is difficult to know what the cause is. Whether the cause is a lack of memory, disk subsystem bottleneck,...
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Shared memory uncovered
Share memory/Shmmax and so on.Abstract Shared memory is an interprocess communication (IPC) facility that exists in every major version of Unix available today. It is ubiquitous in its use by applicat...
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配置ntp服务器
配置ntp服务器Introduction The Network Time Protocol (NTP) is a protocol used to help synchronize your Linux system's clock with an accurate time source. There are that allow the genera...
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如何知道HP-UX是32位还是64位
getconf KERNEL_BITS i.e.>getconf KERNEL_BITS 64
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compress sh
COMPRE="/u03/dbbackup/PROD/export"; export COMPREif [ -f $COMPRE/* ]; then echo " " echo "${JOBNAME_SHORT}: Compressing export logs..." for FILE in $COMPRE/* do ls -l $FILE ARCNAME=`b...
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getconf in HP-UX
getconf usage in hp-ux, just a summary[@more@]getconf MACHINE_SERIAL获取主机设备序列号，这个序列号可用于HP的800报障。 getconf PAGE_SIZE每个内存页的大小。用kmeminfo或者ps -lfp 看内存显示的结果是多少个内存页，要乘以这个每个内存页的大小才得到每个进程的占用内存。 getconf KERNEL_BITS查看操作系统是32位还是64位，在安装oracle前必须弄清楚os版本，安装对应版本的oracle。 getconf MACHINE_MODEL查看主机的具体型号。如rp8440，N4000-55 getconf HW_CPU_SUPP_BITS硬件cpu支持多少位。如64位的cpu支持64位的os和32位的os。
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sysadmin day
http://www.sysadminday.com/July 25th, 2008 (Last Friday Of July)9th AnnualSystem Administrator Appreciation DayIf you can read this, thank your sysadminA sysadmin unpacked the server for this websi...
