Is there a document recommending hardware replacement after 3/5 years of use?

Question

System administration

Hello. Hope someone can help me.
The introductory situation is as follows: we have different server equipment in the data center, which was bought back in 2011 (starting from CISCO on the perimeter and ending with the chassis and storage systems). Now we have run into a situation where there is not enough power, and errors have begun to appear more often (both with blades in the chassis and with OS on these blades). My boss and I understand that when the equipment fails, it's only a matter of time, there is no backup site as such.
So, the crux of the matter is:to increase the arguments before the leadership, I would like to collect an impressive "evidence" base that we simply need a new infrastructure. Are there any recommendations in nature, or direct documents from, for example, HP or DELL, that it is better to replace the equipment every 3/5 years? Or maybe some state. did the structures issue such recommendations (preferably US ones, they will have more "weight")?

Answer 1

You're digging in the wrong direction. And not from that wall.
Management, it primarily considers profit. The fact that the technique is old is not important in itself. At factories, they can use equipment that still remembers the times of Mendeleev, and nothing - does it fulfill its tasks? Fulfills!
Gather real objective evidence, such as:
1) Missing parts after manufacturers stop supporting.
2) Increased risk of failures and downtime.
3) Saving electricity and server space, for the same capacity.
4) Possibility of growth and expansion, add. clients.
Well, etc. closer to your reality.
Of course, it is necessary to prove with the numbers "in hand".

Answer 2

Each piece of equipment has an instruction in which the service life is prescribed.

Answer 3

Calculate the amount of loss that will be in case of forced downtime during the replacement of equipment. Moreover, since the replacement will be urgent, you will have to take it at the price at which they will deliver it faster :)

Answer 4

You can also look at accounting depreciation. For example, a server, according to the classification of fixed assets approved by Decree of the Government of the Russian Federation of 01.01.2002 No. 1, belongs to electronic computers, the 2nd depreciation group. This means that the useful life for the server company can be set in the range from 25 to 36 months.

Answer 5

Is there a document recommending hardware replacement after 3/5 years of use?

No, only the internal standards of the organization if it is written there.

Are there any recommendations in nature, or direct documents from, for example, HP or DELL, that it is better to replace the equipment every 3/5 years?

Of course not.
Why change the equipment if it copes with the tasks?
And if it doesn’t work, you can change it after six months.

preferably US ones, they will have more "weight"

And if the US instructions advise you to drown yourself - drown yourself? The idiocy of people who bow to the "shtatovsky" is striking. In fact - most of the shtatovsky - drunken nonsense of idiots.

Answer 6

Well, in general, yes, you must first start from the necessary criteria for supporting performance and the risks of failure. Of course, for high-loaded valuable services, to minimize downtime, there should be normal equipment, but it is reasonable for money and risks (if a service keeps a two-hour downtime without any problems, then you should not put it on an N * 3 cluster
, etc.)
Well, one more accountant I know, still of the Soviet hardening, explained the concept of AMORTIZATION by saying that "since a thing has a depreciation period of 5 years, then in these 5 years it earns itself a successor and, accordingly, after the period it can be safely changed, because it should work out otherwise it turns out incorrectly calculated the period and the costs depending on it"

Answer 7

имеем разное серверное оборудование в ЦОД
What is the plan if the equipment fails?
Is there a warranty repair, service, replacement?
Is there a time limit for all this activity?
You write it all out, indicate the percentage of risk, approximate downtime and show that new equipment with a guarantee allows you to replace it much faster and free of charge (as long as it is under warranty).
You compare and show it to the owner, who decides what is more important for him - to spend money with an increased risk of downtime, or not to spend money and accept the current risks and agree that you can not work for a week while new equipment is being bought and configured.