Add IPMI Post

content/posts/expand-disk.md

@@ -5,10 +5,9 @@ date: 2021-02-20T17:15:17+01:00
 draft: false
 TocOpen: true
 tags:
+- proxmox
 categories:
 - how-to
-- VM
-- Proxmox
 ---
 This post will set out to explain how you can increase the disk size of a virtual disk inside a VM after increasing its size in your hypervisor.
 It does assume some familiarity with Linux and partitioning.

content/posts/r710-ipmi.md

@@ -0,0 +1,74 @@
+---
+title: "R710 IPMI"
+description: "A collection of some useful R710 ipmi commands"
+date: 2021-02-20T17:13:42+01:00
+categories:
+- R710
+---
+
+This is a nowhere near complete list of useful ipmi commands I stumbled across collected into one post.
+
+## Prerequisites
+The `ipmitool` program is needed for running these commands
+
+## General Information
+To get general information about the IPMI run:
+```
+ipmitool -H <ip> -I lanplus -U root -P <password> mc info
+```
+
+## Fan Control
+Various commands for controlling the fans which can result in _much_ lower noise. 
+
+### Get Fan speed and Temp
+This command will list the ambient temperature and the fan speed of the first three fans. 
+```sh
+ipmitool -I lanplus -H <ip> -U root -P <password> sensor reading "Ambient Temp" "FAN 1 RPM" "FAN 2 RPM" "FAN 3 RPM"
+```
+
+### Allowing manual fan control
+This is a hidden raw command that allows manual control of the fans, be careful when enabling this 
+as there is a possibility of overheating the server.
+```shell
+ipmitool -I lanplus -H <ip> -U root -P <password> raw 0x30 0x30 0x01 0x00
+```
+
+### Setting manual fan speed
+After enabling manual fan control you can specify the speed of the fans like so:
+```shell
+ipmitool -I lanplus -H <ip> -U root -P <password> raw 0x30 0x30 0x02 0xff <speed>
+```
+`<speed>`: is a hexadecimal digit indicating the speed. In my personal testing the lowest I dared to set it
+was about `0x08` which corresponds to approximately 2040RPM. Keeping an eye on the temperature while messing with this
+is highly recommended.
+
+## Temperature Treshold
+If you want to adjust the temperature tresholds which determine when the temperature is considered "critical" you can use this command.
+This is mainly useful if you suspect that the temperature sensor is faulty.
+
+```
+ipmitool <login> sensor thresh <id> <threshold> <setting>
+   login     : login info to contact the idrac
+               for example: -I lanplus -H 10.0.0.42 -U root -P calvin
+   id        : name of the sensor for which threshold is to be set
+   threshold : which threshold to set
+                 unr = upper non-recoverable
+                 ucr = upper critical
+                 unc = upper non-critical
+                 lnc = lower non-critical
+                 lcr = lower critical
+                 lnr = lower non-recoverable
+   setting   : the value to set the threshold to
+
+sensor thresh <id> lower <lnr> <lcr> <lnc>
+   Set all lower thresholds at the same time
+
+sensor thresh <id> upper <unc> <ucr> <unr>
+   Set all upper thresholds at the same time
+```
+
+**Example**:
+This sets the upper ambient critical treshold to 65 degrees celsius
+```sh
+ipmitool -I lanplus -H 10.0.0.42 -U root -P calvin sensor thresh "Ambient Temp" ucr 65
+```