My Crusade » HP-UX

Process Memory Usage Monitoring Using Glance on HP-UX

jarodwang — Wed, 26 May 2010 04:45:22 +0000

glance 是 HP-UX 平台上一个功能非常强大的性能监测工具，这里我只简单介绍一下如何使用 glance 来监测进程的内存占用（用于发现潜在的内存泄露问题）。

首先是如何调用 glance，下面是我所使用的命令行，具体每个选项的意义可以查 manpage：

$ glance -j 4320 -aos ./mem_monitor.cfg -iterations 40 > hpi-1_mm.txt &

这里所使用的 mem_monitor.cfg 文件的内容如下：

headersprinted=0
if headersprinted == 0 then {
print “====== time ====== PROC PID VSZ RSS CPU”
headersprinted = 1
}
process loop {
if ((proc_proc_name==”crsd.bin”)
or (proc_proc_name==”ocssd.bin”)
or (proc_proc_name==”evmd.bin”)
or (proc_proc_name==”evmlogger.info”)
or (proc_proc_name==”oclsomon.bin”)
or (proc_proc_name==”oclsvmon.bin”)
or (proc_proc_name==”racgimon”)
or (proc_proc_name==”ons”)
)
then {
print GBL_STATDATE,”|”,GBL_STATTIME,”|”,proc_proc_name,”|”,proc_proc_id,”|”, proc_mem_virt,”|”,proc_mem_res,”|”,proc_cpu_last_used,”|”
}
}

其中所用到的操作系统度量（metrics）的定义都可以在 /opt/perf/paperdocs/gp/C/gp-metrics.txt 中进行查找。

How to Install tusc on HP-UX

jarodwang — Thu, 26 Nov 2009 12:29:57 +0000

tusc 是一个在 HP-UX 平台上用来跟踪系统调用的程序，其功能类似于 Linux 上的 strace 和 Solaris 上的 truss。最近两天应大洋彼岸的同事要求，要提供某个重要的 Oracle 数据库进程的 tusc 输出，可是在我用的 HP-UX 的测试机上并没有默认安装它。最后 Google 出来了 tusc 的安装方法，记录于此。

答案来自于 HP IT Resource Center 的论坛上的一篇帖子。其实安装过程很简单：

1 在这里下载版本合适的 tusc 安装文件压缩包；

2 以 root 身份使用 swinstall 命令进行安装。

默认的安装路径是在 /usr/local/bin/tusc，之后就可以开始使用了。最后这里顺便给出一个例子：

tusc -o tusc.out -aEfhpRunv -T "" -p pid

11107 Patch Set for HP-UX Itanium is released

jarodwang — Thu, 16 Oct 2008 06:12:50 +0000

As you can see from above screenshot of MetaLink, 11.1.0.7.0 Patch Set for ORACLE Database Server for HP-UX Itanium is released on 06-OCT-2008.

And I’m so proud to make contribution to this release. Cheers!

VERITAS Volume Manager Fundamentals

jarodwang — Mon, 21 Jul 2008 14:53:32 +0000

When you place a physical disk under Volume Manager control, a Volume Manager disk (or VM disk) is assigned to the physical disk.

A VM disk typically includes a public region (allocated storage) and a private region where Volume Manager internal configuration information is stored.

A disk group is a collection of VM disks that share a common configuration.

A disk group configuration is a set of records with detailed information about related Volume Manager objects, their attributes, and their connections.

Volumes are created within a disk group. A given volume must be configured from disks in the same disk group.

A subdisk is a set of contiguous disk blocks. A block is a unit of space on the disk. Volume Manager allocates disk space using subdisks.

The Volume Manager uses subdisks to build virtual objects called plexes. A plex consists of one or more subdisks located on one or more physical disks.

A volume is a virtual disk device that appears to applications, databases, and file systems as a physical disk, but does not have the physical limitations of a physical disk device.

A volume consists of one or more plexes, each holding a copy of the selected data in the volume. Due to its virtual nature, a volume is not restricted to a particular disk or a specific area of disk.

A volume can consist of up to 32 plexes, each of which consists of one or more subdisks.