-1
votes
2answers
34 views

HP Proliant Standby

I'm working on coordinating a rack with 1 HP Proliant DL580 G5 and 2 Proliant DL380 G4's. Is it possible to induce either of these units into something like a standby mode? I've perused the manuals ...
1
vote
4answers
448 views

FATAL: Error inserting acpi_cpufreq

Trying to see how to force CPU to run at higher freq on a HP ProLiant system with SLES 11 SP2. /# modprobe -vv acpi-cpufreq insmod ...
0
votes
1answer
230 views

Understanding CPU Throttle

kernel /vmlinuz-2.6.32-379.22.1.lve1.2.17.el6.x86_64 ro root=UUID=7cb0b445-0f63-4ef1-ab73-93c114d8ef6c rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto ...
3
votes
4answers
536 views

Best way to execute a command after Linux system halt

Problem: The SSDs in our servers require a power cycle (i.e. off/on, not reset/warm reboot) after a firmware update. Thoughts: Using 'ipmitool chassis power cycle' I can cycle the server's power. ...
0
votes
2answers
206 views

Cutting power to linux box. prevent filesystem checking on reboot (and hopefully damage!)

I have a small linux box with a dedicated task of reading sensor data and comparing values against a read only (ie i won't write stuff to it, but haven't done anything to make it actually readonly) ...
4
votes
1answer
604 views

How to DISable display sleep on Dell PowerEdge R310

The display on these PowerEdge systems goes to sleep after some period of time. Normally, when you plug in a KVM, you have to press a key to "wake up" the display. I'm connecting these servers to a ...
0
votes
0answers
171 views

Ubuntu power management logfiles? Forensics (maybe?)?

I'm in the unfortunate position where I need to determine what happened to a remote server of ours. I only have SSH access to it and it's a netbook running ubuntu 10.04 32 bit. It dropped offline for ...
4
votes
3answers
17k views

How to disable all power management in Ubuntu (for a server netbook)?

I need to disable everything related to having the netbook-server go into sleep/hibernate/shutdown. Spinning down the disks during inactivity is fine, but it is crucial that the machine remain in a ...
-1
votes
7answers
353 views

How can I power down my server when the mains power plug is pulled out?

I have a server (Dell R310) running which has a main power cable (long) connected to power(in the wall). Anyone who is bored will pull out that cable (Train station/Airport/ Public zone) and server ...
1
vote
3answers
6k views

Powertop reports “Bad” “Runtime PM for PCI Device”

I've noticed that powertop utility reports "Bad" "Runtime PM for PCI Device" for several devices. Seems that powertop can fix the issue but it won't tell what exactly it does to fix it. What should I ...
4
votes
2answers
2k views

Get drive power state without waking it up

Is there any way how to determine whether some drive is sleeping without occasionally waking it up? I have tried hdparm -C and smartctl -i but both of them actually wake it up when its already ...
0
votes
1answer
579 views

linux hibernate working but slow

I've set up pm-hibernate on AMD and one older Intel platform. But this perticular one is giving me more trouble than usual. Issuing pm-hibernate works but hangs for a long time before finally shutting ...
0
votes
5answers
2k views

When HDD wakes up?

Im looking for some small script or application which could log the time when a non-system disk wakes up. I cannot identify which application or script wakes up my non-system drive (which has to be ...
0
votes
2answers
810 views

Where do I put a startup and shutdown task?

I have written the below program to notify me by email when my Linux system has been rebooted from a power failure. The way I do this is enableing power-fail recovery in the BIOS, and then register ...
0
votes
3answers
428 views

Send notification after powerloss resume?

Question: I've set the BIOS of my server to automagically resume the last state (running/switched off) after a powerloss. Now, how can I send myself an E-Mail when the system has resumed after a ...
1
vote
2answers
911 views

How to mearsure the average cpu frequency in linux?

I'm trying to measure the average cpu frequency in an DVFS enabled cpu for specific interval , the obvious way of periodically sampling /proc/cpuinfo has very large variants. The cpufreq-stats driver ...
33
votes
6answers
21k views

How do I permanently disable Linux's console screen saver, system-wide?

I've got an Ubuntu server that boots up in text mode. It rarely has a screen or keyboard attached to it, but when I do attach a screen, I usually have to attach a keyboard too, because the darn ...
1
vote
2answers
516 views

Power-off button Linux module or package

Is there any specific module/package in Linux responsible for initiating shut-down, once the power-off button was pressed? I installed a minimal version of CentOS Linux by removing the base package, ...
0
votes
2answers
58 views

No cpufreq sub-directory in one of the nodes in our cluster

How do you change the governor from Ondemand to something else ?
1
vote
2answers
344 views

cpufreq directory not present. How to change governor for P states in such a case

One node in my cluster is using ondemand governor which is specified in the directory /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor .. Scaling_governor allows us to choose the governor of our ...
6
votes
3answers
7k views

How do I configure Ubuntu Server to power down drives when not used?

I just got home file server, and it contains 7 hard drives. I installed on it Ubuntu Server (Jaunty). What should I do to make it power down drives when they are not in use (most of the time they will ...
0
votes
3answers
6k views

How can I enable spinning down of idle hard disks on a Debian (Lenny) server?

How can I enable spinning down of idle hard disks on a Debian (Lenny) server? I don't have spindown enabled currently, but if I watch the HD light it flashes every few seconds even though I know the ...