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You might try: trying some other GNU/Linux distribution to see if it has the same problem (easiest using live CD, like Debian or Ubuntu) changing your BIOS ACPI settings (if any) trying to boot with acpi_osi='!Windows 2012' and/or other ACPI related options (see http://redsymbol.net/linux-kernel-boot-parameters/ for example) booting with ...


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It's a tricky question and would likely require some code development and thought on your part and the part of the people you're building the cluster for: When should a node be shut down? When should it be brought up? When the node comes up, are you sure it's synced with other nodes (does it need software updates?) Aside from bringing in pros a good way ...


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The scripts are checking the first argument($1) they are given by the OS to inform them if the computer is sleeping or resuming in their case conditionals. Almost all distros look for hooks(scripts) in /etc/pm/sleep.d/ to execute on sleep or resume. The scripts you found do not run the process of sleeping or resuming, they just "hook" to the process. Yes. ...


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Google should get the credit for this one: http://www.unix.com/programming/161666-tool-simulate-non-sequential-disk-i-o-simulate-db-file-sequential-read-c-posix.html #!/bin/bash for ((N=0; N<10; N++)) do dd if=gigabytefile of=/dev/null skip=$((RANDOM % 1024)) bs=$((1024*1024)) count=1 done


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HAL is defunct and no longer used in modern distros. ACPI is a specification for how the bios and kernel interact relating to system hardware enumeration and power management. udev is a daemon that is notified by the kernel when hardware changes, such as when you plug in a new disk drive, and may take actions such as detecting what filesystems are on the ...



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