HikeOnPast

489 reputation

bio	website
	location	Ventura, CA
	age	41
visits	member for	2 years, 3 months
	seen	Apr 26 at 22:16
stats	profile views	12

	489 reputation	bio	website		visits	member for	2 years, 3 months
38 badges		location	Ventura, CA		seen	Apr 26 at 22:16

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Jan 26	awarded	Yearling
Sep 9	answered	Debian: nginx using an extreme amount of disk I/O
Sep 1	accepted	PDU management interface has low availability - product flaw or isolated issue
Aug 30	accepted	How does I/O performance on Intel E5 procs change with and without QPI
Aug 30	comment	Are Anti Static Foam Cleaners OK for cleaning all parts of a PC? You run the risk of doing mechanical damage by using any type of wipe on electronic components. Depending on the age of the hardware, you may also find your wipes contaminated by lead, requiring special disposal precautions. Compressed air is your friend...just don't let it overspeed any fans; they can be ruined by over-zealous air blowoff.
Aug 29	comment	PDU management interface has low availability - product flaw or isolated issue Killed the ping...no such luck fixing access via https. The PDUs are sometimes unavailable, and sometimes allow me to log in, then hang halfway through loading the home screen. I don't mind doing everything via telnet, but it just doesn't seem like things should be this unreliable. @ewwhite: Thanks for sharing your experience. I was really hopeful that reducing monitoring traffic would improve things.
Aug 29	comment	PDU management interface has low availability - product flaw or isolated issue Disabling http and https monitoring did not improve availability using the web UI (https), though several tests via telnet were 100% reliable (small sample size), which is an improvement. The only remaining monitoring is via ping and snmp. Perhaps it's time to disable ping at this point.
Aug 29	awarded	Commentator
Aug 29	comment	PDU management interface has low availability - product flaw or isolated issue We also had http and https monitoring configured. I've disabled it and will retest soon.
Aug 29	comment	PDU management interface has low availability - product flaw or isolated issue I'm using availability in the loosest sense - basically my subjective of "can we remotely manage the PDU when we want to". We do have a monitoring solution (LogicMonitor) looking at several SNMP datapoints every 5 min and ping every 1 min. Strangely, the PDUs appear generally healthy from the monitoring system's perspective, yet when we want to log in and actually do something in them, they rarely work the first few attempts, and occasionally lock up to the point of requiring a hard restart (after which, monitoring confirms the unhappiness).
Aug 29	revised	PDU management interface has low availability - product flaw or isolated issue Clarified first paragraph wrt intent of post
Aug 29	comment	PDU management interface has low availability - product flaw or isolated issue @Andrew: They're owned by our colo provider. With our move to cage space, we'll be purchasing our own with the express goal of avoiding buying lemons.
Aug 28	comment	PDU management interface has low availability - product flaw or isolated issue @HopelessN00b: I was trying to keep this away from requesting a specific product recommendation. I've had ops issues with a particular component and am trying to leverage the expertise in the community to avoid a repeat scenario. I've edited the title to better reflect my intent.
Aug 28	revised	PDU management interface has low availability - product flaw or isolated issue Clarified my intent to gather feedback on experience with managed PDUs in general, since I'm not looking for an explicit product recommendation.
Aug 28	asked	PDU management interface has low availability - product flaw or isolated issue
Aug 16	awarded	Critic
Aug 13	awarded	Good Answer
Jul 26	comment	How does I/O performance on Intel E5 procs change with and without QPI @pfo, so the E5-1410 has an on-die PCIe 3.0 controller, but it's disabled in favor of the DMI 2.0 bus?
Jul 26	comment	How does I/O performance on Intel E5 procs change with and without QPI @Chopper3, valid, but peripherals can't use QPI directly; they have to go through an IOH. While I agree with your answer, it seems to be comparing apples to oranges. (qdpma.com/SystemArchitecture/SystemArchitecture_QPI.html)
Jul 25	comment	How does I/O performance on Intel E5 procs change with and without QPI Agreed, but my question is targeted at structural/spec differences between the two processor families rather than "what will run my app the fastest?"