Mechanical Seasons

All things come to an end. However energy is conserved, converted, never lost.

This is some solace when the lost thing was alive - but its worth bugger all when the mechanics of a hard drive fail.

I have been doing this engineer thing for a while. Say - 20 years I guess. Things have changed a lot. Drives have changed a formidable amount.... not just in terms of capacity, media, manufacturing techniques - but physical attributes of a mechanical nature such as bearings, magnets, materials.

SO - is it just some Old Wives Tail that bears out like broken bones hurting when the pressure drops... (says he with current unpleasant experience) - to the point of statistical relevance or - simply put:


Something that is usually backed by them failing in significant statistical clusters. MAY and OCTOBER period - clusters of failures. Noticeably so. I am not talking SMART errors - I am not talking pining for the Fjords - I am talking no life - dead.

Given that the environments are controlled in terms of power optimization (I am aware that substations are quite often 'geared' and will be changed at the season changes), filtering to deliver consistent voltage and frequency free of external noise... and that temperature is controlled to the point they are continually cool.

- Is it coincidence?

- Humidity?

- Temperature?

I am aware of "certain Data Centre providers" who have for example been continually surprised (each year) with pollen clogging the cooling filters in a similar way that rail providers always seem surprised that there are leaves on the line each year.

Anyway - I have said my piece - enter the drive failure season.

1x SAS 15k RPM

1x SATA 7.2k RPM

May you rest in peace


*(until you have that nasty metal spike driven through you in a few weeks time).

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