37 votes

Configuring SuperMicro IPMI to use one of the LAN interfaces instead of the IPMI port?

The following raw commands will surely prove useful to the next person who reads this topic. I got these directly from Supermicro support. Cheers: To get LAN mode: ipmitool raw 0x30 0x70 0x0c 0. ...
  • 1,041
36 votes
Accepted

What's the difference between motherboard and chassis?

Chassis The chassis, also often called the "case", is the container or enclosure that holds all of the other pieces of a computer. It might include some switches, fans, and indicator lights. Desktops ...
  • 1,794
16 votes
Accepted

RAID 6 array, one disk rebuilding?

Disks can experience temporary failures that cause them to drop out of the array but can be corrected by a system reboot or controller reset. This might really be a one-off error but I would follow up ...
  • 573
13 votes
Accepted

Is disk serial readable from supermicro chassis?

There exist no way at all to (optically) read a disk serial number once the disk is inserted into the system - the holes in the front of the disk caddy are not meant to facilitate reading a serial ...
  • 97.6k
10 votes

SAS Expander backplane performance drops when more than 8 drives are active?

This is how SAS expanders work. You're technically oversubscribed, but in reality, you shouldn't be. Your WD2003FYYS disks link at 3.0Gbps, but are only capable of 1.2Gbps/disk. Your Supermicro drive ...
  • 195k
10 votes
Accepted

Supermicro IPMIView KVM Console does not work at all

Better answer and complete solution. The problem was the firmware for the IPMI on these boards was too old (not the same as the BIOS - updating the BIOS will not help in this case). Digging around ...
  • 291
9 votes

Is disk serial readable from supermicro chassis?

Supermicro is rough... But so is your hosting company!! There's no excuse for that. Ask for a credit on your monthly bill for the mistake if it caused downtime. So think of this: The disk serial ...
  • 195k
9 votes
Accepted

Supermicro Server fails to boot from NVMe SSD

I have found a solution to this problem. It turns out that it is not possible to boot from NVMe in BIOS mode. Only UEFI is supported. However, my install disk was booted in BIOS mode, so the installer ...
9 votes

Preseed automatic partitioning

Special notes It wasn't mentioned whether there is bios_grub, ESP, GPT or MBR, or which method the firmware uses. When using GPT, you need one or the other (or both). So what will happen is the ...
  • 2,586
7 votes

"HDD Status" in ipmitool sensor output

ipmitool might use sensor number and sensor name for command output. You can use the following command to print the command output in a more friendly format: ipmitool -H <ipmi_ip> -U <...
  • 8,871
7 votes
Accepted

Supermicro X9SCD won't enter BIOS (error code: AB)

Based on user discussions in a thread by Webjunkie in the ServeTheHome Forums it appears that there is a date dependent bug that causes this behavior on some of the Supermicro X9 boards: It seems ...
6 votes
Accepted

5-pin 4-cable connector on SuperMicro server PSU?

That's a PMBus connection. Motherboards that support Power supply Monitoring can use it to report the power supply's internal information. I've only seen such connectors on SuperMicro motherboards.
  • 77.5k
6 votes

Identify Disks on SuperMicro server running FreeBSD

I know this is an old question, but it gave me a few of the pieces I put together, and i thought i'd shoot back the script i came up with, since this is an almost exact match to my situation: it ...
6 votes

What's the difference between motherboard and chassis?

The chassis is the unit that houses the motherboard and other internal components. The motherboard is the... motherboard. It goes in the chassis.
  • 109k
5 votes

Identify Disks on SuperMicro server running FreeBSD

I know this is an old question, but for the searchers hitting this, on FreeBSD >= 10.3, you can use sesutil locate da2 on to turn on da2's LED provided it is in an enclosure that provides a /dev/sesN ...
  • 151
5 votes

Double UPS on high load during power down

A few questions to answer here... As for the power supply distribution in dual PSU servers, the short answer is that it depends on the server manufacturer and system/BIOS configuration. Please see: ...
  • 195k
5 votes
Accepted

Supermicro BMC watchdog-caused reboots

Eventually, I found a little bit strange solution: just leave watchdog jumper (JWD1) open (with neither NMI nor hard-reset selected). Watchdog is enabled in BIOS settings. In this case watchdog works ...
5 votes
Accepted

What IP address should I use for a device that I want to break network access to?

Would either of these work? I'm concerned that if I choose a IP address like 192.168.0.0 it could cause an issue if someone was to directly connect to the port and send packets to the network address. ...
5 votes

hard resetting link exception Emask 0x50 SAct 0x0 SErr 0x4090800 action 0xe frozen

What you server experiences is basically a SATA renegotiation at a lower link speed after some problem communicating with the drives. These factors can be at work here (ordered by probability) very ...
  • 44.5k
4 votes

Supermicro IPMI KVM: connection failed

For some reason any version of the IPMIView doesn't work with IPMI firmwares >= 3.32, including the last IPMIView one. You have to use the browser launching their Java plugin from a web-interface, and ...
  • 8,330
4 votes

Configuring SuperMicro IPMI to use one of the LAN interfaces instead of the IPMI port?

You can also use ipmitool to set the lanport: sudo ipmiutil smcoem lanport dedicated Then check that your config is right: sudo ipmiutil lan -e You should see the line: SuperMicro Lan Interface :...
4 votes

Identify Disks on SuperMicro server running FreeBSD

I don't know about FreeBSD, but in Linux, there is a collection of software from Intel called ledmon(8) and I have used the userspace program ledctl(8) to flash the "locate" LED on a particular drive ...
  • 41
4 votes

Supermicro X7DBU, how to put it to sleep

Turn the server off when you're not using it. Turn it on when you need it. For your purposes, you don't have any practical deep-sleep options for that Supermicro hardware that would be substantially ...
  • 195k
4 votes
Accepted

Supermicro NICs gone after BIOS update

Final solution was resetting the BIOS settings to "Fail-Safe Defaults" as suggested by Brian.
4 votes
Accepted

hard resetting link exception Emask 0x50 SAct 0x0 SErr 0x4090800 action 0xe frozen

According to Supermicro Support, the defect lies with board : Quote: This board may need ECO 16238 update.
  • 2,851
4 votes

Cannot boot server after power failure

After rapidly switch on off the psu in furious rage, the server finally boots.
4 votes

Disable hardware RAID controller

You can't configure disks connected to the SAS controller in the BIOS. During system startup, there should appear a prompt for a different setup system (Ctrl+H if I remember correctly). https://www....
  • 97.6k
4 votes

What is ME region in BIOS

BIOS ME stands for "BIOS Management Engine". You want to have that option unchecked when upgrading your BIOS. You haven't specified what board you have, but for my X9SCL-F, I had a problem when ...
  • 313
3 votes

Supermicro IPMI and Windows Share

On my SMT-based IPMI 2.0, which is a rather old generation, a ISO-image won't mount no matter what. I had success via Java-console, which also allows mounting images.
3 votes

SAS Expander backplane performance drops when more than 8 drives are active?

SAS expanders do not (as of this writing) "store and forward" like an Ethernet switch would. They can only go as fast as the slowest signaling device in the array. In this case, your drives only ...

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