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147 votes
Accepted

Physically locating the server

Use IPMI to trigger LEDs, increase fan RPMs or sound the beep/alarm. Take a look at the man page for ipmitool https://linux.die.net/man/1/ipmitool depending on the server you may be able to set the ...
Matt's user avatar
  • 2,751
101 votes

Physically locating the server

If your server has a CD/DVD or similar drive, a simple solution is to run eject and look for the open tray. (Remember, just because the tray is open doesn't mean that you opened it; confirm a second ...
Techwolf's user avatar
  • 1,113
55 votes

Physically locating the server

An electrical method: When the power consumption in your building is not going to change a lot (like at night): Run the computer at full cpu (like prime 95) Measure the current going through each ...
Eric Johnson's user avatar
40 votes

Physically locating the server

If you have a managed switch: ping ghostserver arp -a Note the MAC address, and after check your switch ARP table per port. Depending on the switch model you will have output like this: ** Notice ...
yagmoth555's user avatar
  • 17.2k
24 votes

Physically locating the server

Use beep. Assuming you have an internal speaker installed (often a small piezoelectric device), this will emit a beep on said speaker. If you are unsure whether there is a speaker inside the box in ...
MvG's user avatar
  • 1,803
17 votes

Physically locating the server

With managed network devices, you have a number of options: you can look for CDP/LLDP packets from the switch towards the hosts (which will tell the switch name and port number), or you can install ...
techieb0y's user avatar
  • 4,179
13 votes

Purpose of vent holes on the top of rackmount servers?

(Some people are hard to please...) These are likely system exhaust vents and fit into the total design of the product. Please understand that the system is designed and optimized for rack mounting ...
ewwhite's user avatar
  • 198k
10 votes

Physically locating the server

Reboot and listen for the POST beep
Patrick's user avatar
  • 511
8 votes

What is the correct temperature for a server room?

https://en.wikipedia.org/wiki/Data_center_environmental_control contains an interesting overview of vendor datacenter temperature recommendations:
Franck Dernoncourt's user avatar
6 votes

How should I store my HDDs?

For the case, I see it would be beneficial to consider 3-2-1 rule with RTO and RPO in order to get planned Backup and DR sites. For a backup and DR boxes, I am using 2x Synology, so I can suggest ...
Mr. Raspberry's user avatar
6 votes

Physically locating the server

If the machine has a wireless card but is using a cable (unlikely, but maybe the motherboard has it built in?) You can configure it as an access point then use a phone app like wi-eye to play "hot or ...
Sidney's user avatar
  • 184
5 votes

How should I store my HDDs?

Hard disk isn't designed to store data for some reasonably long period of time. For vaulting you need disk -> tape and use something like Iron Mountain and similar services. Companies who need to mess ...
BaronSamedi1958's user avatar
4 votes
Accepted

How should I store my HDDs?

I agree that a NAS is always the best answer for external storage. If you truly want "Off site", I would recommend a safe deposit box. If you are looking to store this long term and only touch it in ...
NOW-Admin's user avatar
4 votes

How should I store my HDDs?

Don't store your backups in off-site hard drives. That sounds like a dangerous and inefficient way to store off-site backups. I'd store your on-site backup on a professional NAS or SAN with disks in ...
Jake Nelson's user avatar
4 votes

Physically locating the server

Hard drive LEDs can be made to show a lot of activity, turning them into viable identifier lights, by reading with dd if=/dev/sdX of=/dev/null. No IPMI support needed. Also see https://unix....
rackandboneman's user avatar
3 votes
Accepted

VM image vs Phyical server image?

Well, you can use P2V utility (physical to virtual) to make a vm image and import it into your vm cluster. Why do you think image of a physical server is hard to create? There is native utility does ...
Root Loop's user avatar
  • 912
3 votes

Physically locating the server

There are two easy ways to do this.. one has already been mentioned ( eject the cdrom tray ) The other is to login with a wireless connection and watch the USB messages. Then go around and plug in a ...
T. B.'s user avatar
  • 333
2 votes

Purpose of vent holes on the top of rackmount servers?

Those holes are IMHO there to allow the air to keep venting in the event a person fills the expansion slots. Cards in expansion slots don't have vent holes so each care is removing venting real ...
Skeer's user avatar
  • 110
2 votes

What are the considerations which decide the server Dimensions in Rack Servers?

You're getting your terms wrong sorry. A blade server is a physically small server that fits inside a larger chassis that provides the blade servers inside it with common services such as power ...
Chopper3's user avatar
  • 102k
2 votes

Physically locating the server

If you're going to move it, how about turning it off and looking for a switched off machine?
user6858980's user avatar
2 votes

How can I figure out the physical location of my cloud server?

The only way to find out where your data is physically located is to ask your cloud provider. The lesson here is simple: any data and apps you have in the cloud are physically stored on a server ...
Yelleti Priyanka's user avatar
1 vote
Accepted

understanding Openstack physical architecture

Before I answer your questions, I am curious what you are planning to achieve, and why you think OpenStack is the right tool to achieve it. I buy a rack server You don't run a production OpenStack ...
berndbausch's user avatar
  • 1,033
1 vote

Why do technicians recommend a lowest temperature for server rooms?

First off, its NOT bad from the servers POV to run rooms colder, within reason. The links you have imply, or downright state the reason - cost. Keeping servers cooler costs more money (and wastes ...
davidgo's user avatar
  • 6,312
1 vote

Is the temperature differential in my server room to large under heavy load

This would seem "within the bounds of normal" - maybe slightly on the warm side depending on how your ventilation is set up and where its measured. It likely also depends on the servers - more power ...
davidgo's user avatar
  • 6,312
1 vote

Physically locating the server

Various research has been done into how to exfiltrate data via EMF; for example, http://www.cl.cam.ac.uk/techreports/UCAM-CL-TR-577.pdf If you can get the missing computer to produce a radio signal, ...
R.. GitHub STOP HELPING ICE's user avatar
1 vote

Mounting equipment that only occupies half the depth of the cabinet?

If you have a 1U switch that is 25 to 30 cm deep, that will mount fine with four cage nuts. If it's deeper then you may see it sag towards the back. Whether you care about that or not is up to you. ...
marctxk's user avatar
  • 329
1 vote
Accepted

Mounting equipment that only occupies half the depth of the cabinet?

Maybe this will help you: Mounting an EX4300 Switch on Two Posts of a Rack or Cabinet: Use the 2 mounting brackets and 8 mounting screws (provided in the accessory box shipped with the switch) Mount ...
Satanowski's user avatar
1 vote

Purpose of vent holes on the top of rackmount servers?

Servers aren't really intended to be stacked directly on top of each other but for mounting in a 19'' cabinet. Typically there they don't quite touch and those vent holes won't be (completely) closed ...
HBruijn's user avatar
  • 80.7k
1 vote
Accepted

Reset temperature sensor on Supermicro X7DWA-N

From your motherboard manual(X7DWA-N) JBT1 is used to clear CMOS. Instead of pins, this "jumper" consists of contact pads to prevent accidental clearing of CMOS. To clear CMOS, use a metal ...
Inxsible's user avatar
  • 343
1 vote

Intel SSB temperature sensor

That would be "server south bridge", according to Intel: https://www.intel.com/content/dam/support/us/en/documents/motherboards/server/sb/s2600xxv3_errata_02242015_final.pdf (search for SSB)
tacocat's user avatar
  • 11

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