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information GUI, which provides a plethora of useful information concerning the server. The SMTP Agent that installs at the same time lets you remotely monitor XenServer using, say, Nagios.
The close link
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the management server monitors the load on the hosts, it automatically displays a host statistic when you add a new machine so that you can easily see which host is best suited to the task. You can customize
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on Mac OS X and OpenBSD.
To check out my Ubuntu 11.04 laptop's /bin caching status, I enter:
$ ./vmtouch /bin
Vmtouch crawled the files in /bin and reported that about half of the memory pages
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ubiquitous that even my laptop can act as a VMware or Xen host.
I feel vindicated for gushing over a technology that, in 1999, some industry pundits labeled "cute" or "trendy." I felt the same way when my
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swapping well, and a laptop might hibernate (suspending to disk leverages swap area storage). On servers, swap mostly ensures that intermittent conditions will not cause a crash, as performance constraints
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of when we imagine a traditional desktop computer. But, when contemporary analysts write and speak about the Post-PC Era, they're talking about desktop computers and standard laptops as well. By my
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and even individual DLL files in special use cases, including the ability to distinguish between program and DLL versions. AppLocker can also create automatic policies and monitor specific directories
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when something goes wrong, the software you can use with a smartphone to fix it, and other options you have to control your machines from a distance.
Monitoring and Alerts
Several software options
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the value for all the available CPUs; if you set 0x40, you get the value only for the CPU actually running the OProfile process. The command in Listing 2 monitors a specific event.
Listing 2
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-heartbeat tool uses a tiny table on the master to keep the system's pulse beating.
mk-heartbeat --database maatkit --monitor -ureply -ppassword -h slave
to check when the slave applied the change.
A table
