1) SSDs and flash memory need to be refreshed (rewriting all the same files) at intervals of 1 year or more to keep the data intact and free from corruption and bitrot.
Do 2.5" and 3.5" HDDs also have this problem? Even if the drive is in good health, if the data was written many years ago, are they at risk of corruption, loss of magnetism, bitrot, and other problems? i use 2.5" hdd
generally i acess energize my drives 1 once year more no nothiting write

2) Do 2.5" HDDs for long-term storage require specific, perfect conditions of 50% humidity and 25°C? Is oxidation and corrosion possible above that?

In My home varies in 24h 31-38C 55-66% not rain day

3) Can 2.5" HDDs be used for long-term archiving, or only 3.5" models?

My 2.5" HDD models are: Seagate ST500LM030, WD10JPVX-08JC3T5, HGST HTS541010A99E662

Sonicmario?

My HDD is a Seagate ST500LM030, WD10JPVX-08JC3T5, HGST HTS541010A99E662

1) How does file degradation occur within 2.5" HDDs stored unused? Is it similar to SSDs and flash memory? After a year or so, do the data within the chips become corrupted or lost? This is due to storage conditions far from ideal, for example: temperature varies 31-38°C, humidity 55-66%, not counting rainy days.

2) Can 2.5" HDDs be used for long-term archiving or not? Only 3.5" HDDs are designed for this purpose because they are more robust.

3) I read that long-term archiving of files and 2.5" HDDs requires controlled humidity and temperature (25°C to 50%). In tropical countries like Brazil, with temperatures varying 31-38°C and humidity 55-66%, not counting rainy days, will this 2.5" HDD, if powered on once a year for a few minutes, have a certain durability and resistance. 1) What happens to the data intact in this situation, or if it is used for several hours every day under the same humidity and temperature conditions?

2) A 2.5" HDD, when switched off, is placed for several hours 2 cm away from a large 29" CRT TV (which is switched on) and a desk fan (which is switched on). These devices contain magnets and coils; will they cause magnetic loss and damage to this 2.5" HDD?

Yep, definitely the AI bot under a different account.

Oh, 29" CRT TV moved from London to Brazil! Did sonicmario give it to you ? And they turned it on!