5 votes
Accepted

Can I power 2x6 socket surge protected PDUs from a surge protected UPS?

No, you shouldn't use surge protected PDUs. Instead, use a plain, quality PDU without surge protection. This is recommended by APC. Also, read this for some nice background explanation.
Sven's user avatar
  • 99.6k
2 votes

automate settings change on multiple power appliances

Look into expect. Alternative implementations for other languages and systems than Tcl exist (e.g. pexpect for Python or the Ansible expect module). For 100s of devices, I would particularly look ...
Sven's user avatar
  • 99.6k
2 votes

APC PDU has wrong idea of its outlets

Open a case with APC. On different equipment I would say that the device has lost connection to its backplane.
Nils's user avatar
  • 7,745
2 votes

How to diagnose false positives with a smart PDU ping'ing devices on LAN

Do not do this. You have already identified a potential problem if a switch goes down and the PDU power cycles other devices. And power cycling has risks for the integrity of some systems that should ...
John Mahowald's user avatar
2 votes
Accepted

Rack PDU with IP control and surge protection

There are a whole lot of "it depends" on this one. In most cases involving a managed PDU, suppression is handled upstream somewhere. If you are in a colo I would recommend talking to their power ...
Paul Doom's user avatar
  • 841
2 votes
Accepted

Load distribution across PSUs on a Dell PowerEdge

I've found the specific answer to the distribution question now, so sharing here just in case others want it. According to the R630 Owner's Manual on page 99: When two identical power supplies are ...
SimonJGreen's user avatar
  • 3,245
1 vote
Accepted

How can I reset the password to my Wattbox WB-700-IPV-12?

To reset the master password, you should find a sticker on the underside of the device which has the "MASTER PASSWORD", it's labeled as such. To use this sticker, go to the secret service ...
Evan Carroll's user avatar
  • 2,432
1 vote

snmpwalk: Decryption error for APC Rack PDU

Unfortunately I can't comment yet, so giving here my 2 cents: your snmpwalk command misses the option to specify the security level: -l LEVEL set security level (noAuthNoPriv|authNoPriv|...
develox's user avatar
  • 41
1 vote

automate settings change on multiple power appliances

The cloud-generation answer to your question is a programmer-friendly REST API over HTTPS, which your appliances do not seem to have. The canonical decades-old answer to your question is expect. ...
Law29's user avatar
  • 3,577
1 vote

Power Usage via IPMI or BIOS or?

You can query the power consumption with ipmitool: ipmitool -I lanplus -H ${BMC_HOST} -U ${BMC_USER} -P ${BMC_PASS} dcmi power reading or on newer systems with redfish: curl -s https://${BMC_HOST}/...
panticz's user avatar
  • 791
1 vote

Will a NEMA L5-20P plug work in a NEMA L5-30R receptacle?

A L5-30R (receptacle) circuit is rated for 30Amps, putting a 20Amp load (L5-20P Plug) on it is withing the design capacity. The reverse is not true. Plugging L5-30P (30A Plug) into an L5-20R (...
Garrett's user avatar
  • 11
1 vote

Load distribution across PSUs on a Dell PowerEdge

It depends a bit on your server manufacturer and system settings, but check out the details at: How do servers with redundant power supplies balance consumption? It sounds like your real question is:...
ewwhite's user avatar
  • 198k

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