Because usually it's more efficient for companies to retire the hardware and put in new stuff.

Meanwhile, my 10-15 year old server hardware keeps chugging along just fine in the rack in my garage.

rsynnott 2 hours ago | parent | next [-]

"Just fine". Presumably you're not super-concerned with the energy costs? People who run data centres pretty much _have_ to be.

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slashdave 9 hours ago | parent | prev | next [-]

More than that. The equipment is depreciated on a 5 year schedule on the company balance sheet. It actually costs nothing to discard it.

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johncolanduoni 9 hours ago | parent [-]

There’s no marginal tax impact of discarding it or not after 5 years - if it was still net useful to keep it powered, they would keep it. Depreciation doesn’t demand you dispose of or sell the item to see the tax benefit.

	▲	mattmaroon 8 hours ago \| parent [-]
		No but it tips the scales. If the new hardware is a little more efficient, but perhaps not so much so that you would necessarily replace it, the ability to appreciate the new stuff, but not the old stuff might tip your decision

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AdrianB1 9 hours ago | parent | prev | next [-]

I thought the same until I calculated that newer hardware consumes a few times less energy and for something running 24x7 that adds up quite a bit (I live in Europe, energy is quite expensive).

So my homelab equipment is just 5 years old and it will get replaced in 2-3 years with something even more power efficient.

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tharkun__ 6 hours ago | parent | next [-]

Where in Europe?

Asking coz I just did a quick comparison and it seems to depend but for comparison I have a really old AMD Athlon "e" processor (like literally September 2009 is when it came out according to some quick Google search, tho I probably bought it a few months later than that but still ...) that runs at ~45W TDP. In idle conditions, it typically consumes around 10 to 15 watts (internet wisdom, not kill-a-watt-wisdom).

Some napkin math says it would cost me about 40 years worth of amortization to replace this at my current power rates for this system. So why would I replace it? And even with some EU countries' power rates we seem to be at 5-10 years amortization upon replacement. I've been running this motherboard, CPU + RAM combo for ~15 years now it seems, replacing only the hard drives every ~3 years. And the tower it's in is about 25 years old.

Oh I forgot, I think I had to buy two new CR2032 batteries during those years (CMOS battery).

Now granted, this processor can basically do "nothing" in comparison to a current system I might buy. But I also don't need more for what it does.

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z0mghii 6 hours ago | parent [-]

Well if you have a system that does "nothing" it's hard to argue to replace it

	▲	bbarnett 2 hours ago \| parent [-]
		"Nothing" from parent was a comparison. Doesn't mean their system is idle. However many systems are mostly idle. A file server often doesn't use much cpu. It often isn't even serving anything.

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prmoustache 4 hours ago | parent | prev | next [-]

I guess you did the math but wouldn't it be more effective to spend the money on solar panels instead of replacing the computer hardware?

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thehappypm 6 hours ago | parent | prev [-]

Energy is very cheap for data centers. have you ever looked up wholesale energy rates? It’s like a cent per kilowatt hour.

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XorNot 10 hours ago | parent | prev [-]

Sample size of 1 though. It's like how I've had hard disks last a decade, but a 100 node Hadoop cluster had 3 die per week after a few years.

	▲	snuxoll 10 hours ago \| parent [-]
		Spinning rust and fans are the outliers when it comes to longevity in compute hardware. I’ve had to replace a disk or two in my rack at home, but at the end of the day the CPUs, RAM, NICs, etc. all continue to tick along just fine. When it comes to enterprise deployments, the lifecycle always revolves around price/performance. Why pay for old gear that sucks up power and runs 30% slower than the new hotness, after all! But, here we are, hitting limits of transistor density. There’s a reason I still can’t get 13th or 14th gen poweredge boxes for the price I paid for my 12th gen ones years ago.