HDD 2.5" question

[cloudff7]

Do 2.5" laptop HDDs have a temperature range for long-term storage without risk of demagnetization of the platters causing data loss and corruption? Or does any temperature above 25C slowly cause the platters to demagnetize?

[Dr. Will0hlep]

12 minutes ago, cloudff7 said:

Do 2.5" laptop HDDs have a temperature range for long-term storage without risk of demagnetization of the platters causing data loss and corruption? Or does any temperature above 25C slowly cause the platters to demagnetize?

The data sheets for Seagate BarraCuda 2.5-inch HDDs says they a Nonoperating Temperature of -40°C to 70°C.

[podkall]

Huh? Do you live on the Sun?

 

 

 

See this:

 

 

• I'm sure you'll be fine unless you plan to keep your PC on Antarctica or outside on Sahara desert.

[PDifolco]

14 minutes ago, cloudff7 said:

Do 2.5" laptop HDDs have a temperature range for long-term storage without risk of demagnetization of the platters causing data loss and corruption? Or does any temperature above 25C slowly cause the platters to demagnetize?

I'd replace any 2.5" HDD on a laptop with a SATA SSD, it makes no sense to keep those awfully slow drives now except on NAS 

[podkall]

3 minutes ago, PDifolco said:

I'd replace any 2.5" HDD on a laptop with a SATA SSD, it makes no sense to keep those awfully slow drives now except on NAS 

It wouldn't even be that expensive to buy SATA SSDs for RAID storage, just make sure it's not SSD that has like low write-durability. (or maybe it would actually, depends what is your budget)

[Dr. Will0hlep]

2 minutes ago, PDifolco said:

I'd replace any 2.5" HDD on a laptop with a SATA SSD, it makes no sense to keep those awfully slow drives now except on NAS 

Just now, podkall said:

It wouldn't even be that expensive to buy SATA SSDs for RAID storage, just make sure it's not SSD that has like low write-durability.

This is a good upgrade idea, but given the question, I suspect his real intentions for the drive may not involve a laptop.

[cloudff7]

Does the Curie temperature have anything to do with the magnetic materials used in the platters of 2.5" HDDs or does the Curie temperature only have anything to do with other types of more resistant magnetic materials that are not available in 2.5" laptop HDDs?

 

my home temperature is 36C quicly loss magnetize in platters 2.5" hdd? humidity influence?

[Dr. Will0hlep]

2 minutes ago, cloudff7 said:

Does the Curie temperature have anything to do with the magnetic materials used in the platters of 2.5" HDDs or does the Curie temperature only have anything to do with other types of more resistant magnetic materials that are not available in 2.5" laptop HDDs?

 

my home temperature is 36C quicly loss magnetize in platters 2.5" hdd? humidity influence?

My NAS is in a shed that often reaches 40C and I've not seen any issues. As I said above:

15 minutes ago, will0hlep said:

The data sheets for Seagate BarraCuda 2.5-inch HDDs says they a Nonoperating Temperature of -40°C to 70°C.

You will be fine.

[cloudff7]

I have models Seagate ST500LM030 and WD10JPVX-08JC3T5 and HGST HTS541010A99E662

[Dr. Will0hlep]

5 minutes ago, cloudff7 said:

Seagate ST500LM030

–40C to 70C

6 minutes ago, cloudff7 said:

WD10JPVX-08JC3T5

<60°C

7 minutes ago, cloudff7 said:

HGST HTS541010A99E662

-40° to 65° C

[ianm_ozzy]

1 hour ago, PDifolco said:

I'd replace any 2.5" HDD on a laptop with a SATA SSD, it makes no sense to keep those awfully slow drives now except on NAS 

It is unclear what use they are have at all.

Those available now seem to all be SMR (Shingled Magnetic Recording).

Their use in a NAS is dubious.

 

[ianm_ozzy]

1 hour ago, cloudff7 said:

Do 2.5" laptop HDDs have a temperature range for long-term storage without risk of demagnetization of the platters causing data loss and corruption? Or does any temperature above 25C slowly cause the platters to demagnetize?

All drives can suffer from data corruption.

It is obviously a good ideal to keep it within the operating temperature. It will depend on the drive.

 

I suggest staying well clear of 2.5 inch hard drives.

After a quick check, all the newish ones are all SMR.

With their already poor read speeds, the write speeds will be dismally slow if doing anything challenging.

 

 

 

 

[jmwhite33]

1 hour ago, cloudff7 said:

Do 2.5" laptop HDDs have a temperature range for long-term storage without risk of demagnetization of the platters causing data loss and corruption? Or does any temperature above 25C slowly cause the platters to demagnetize?

don't know where you heard that, utter nonsense.

Yes, you can use them for long term storage.

HDD's are MUCH more reliable for "sitting on a shelf storage" than SSD's.

I have a HDD over 22 years old that I had no problem reading all the data from and it is still functional now.

Others that I have are about 15 years old and all reports show they are in good health with no issues.

Like to see an SSD retain data for 20+ years.

 

If it's a drive you have laying around and it tests good, sure use it for storage.

[cloudff7]

1 hour ago, will0hlep said:

–40C to 70C

<60°C

-40° to 65° C

Does the temperature range in these 2.5" HDDs mentioned have a direct relationship with the demagnetization of the platters or only with the preservation of the PCB, motors and oil?

[Dr. Will0hlep]

4 minutes ago, cloudff7 said:

Does the temperature range in these 2.5" HDDs mentioned have a direct relationship with the demagnetization of the platters or only with the preservation of the PCB, motors and oil?

The temp ranges listed take all possible failures into account, including demagnetization. Leaving those temp ranges will reduce the lifetime of the drive.

 

However, no drive is perfect. Is the data your storing mission critical? Have you considered a backup strategy?

 

Can I ask why your so focused on demagnetization? Data loss is far more likely to occur is so many other ways.

[cloudff7]

I saw on the internet that it is possible to demagnetize 2.5" HDDs at high temperatures, which is why where I live it is 36°C, so I thought about researching and asking about magnetic loss in 2.5" HDDs. Does humidity also influence the demagnetization of the platters?

 

I asked Seagate and WD and they didn't answer, maybe the attendants don't have technical knowledge of HDDs, just basic information.

[Dr. Will0hlep]

Just now, cloudff7 said:

Does humidity also influence the demagnetization of the platters?

Well, as I said, I keep my NAS in a shed. I also live in the UK (near the coast), so if humidity was an issue for HDDs, I'd be screwed.

 

7 minutes ago, cloudff7 said:

I saw on the internet that it is possible to demagnetize 2.5" HDDs at high temperatures, which is why where I live it is 36°C, so I thought about researching and asking about magnetic loss in 2.5" HDDs.

Your going to need much higher temperatures than 36C.

[cloudff7]

I couldn't find the datasheet for the HGST HTS541010A99E662. I found the others.

 

 

In my case, is it more important to follow the operating temperature or the non-operating temperature? Here at my house, the temperature is 36C during the operation of the 2.5" HDDs inside the USB 3.0 case. I don't usually check the maximum temperature that the HDD reaches, but if it goes over 60C, does any loss of magnetization occur?

 

 

Here the humidity is high, it varies from 60 to 71%. I know it is bad for oxidation, but I don't know if this humidity causes demagnetization. I access the drives once a year. in datasheet not shows humiity range

[Dr. Will0hlep]

Just now, cloudff7 said:

if it goes over 60C, does any loss of magnetization occur?

It shouldn't.

 

1 minute ago, cloudff7 said:

is it more important to follow the operating temperature or the non-operating temperature?

When the drive is running you should follow the operating temperatures. When it isn't, keep to the non-operating temperature.

[cloudff7]

Storing 2.5" laptop HDDs within a few centimeters of a 29" CRT TV and SATA DVD drives causes the HDDs to become unusable and lose data?

 

operation temperature and non-operation temperature in datasheet have a direct relationship with the demagnetization of 2.5" HDDs? Does this happen outside the range?

[Dr. Will0hlep]

Just now, cloudff7 said:

Storing 2.5" laptop HDDs within a few centimeters of a 29" CRT TV and SATA DVD drives causes the HDDs to become unusable and lose data?

CRT TVs contain a magnets to redirect electrons towards the phosphers on the screen. Now, HDDs are actually somewhat resistant to magnets, and the magnets in CRTs are not super strong. However, I would still suggest you keep drives away from CRTs, or anything containing magnets more generally.

 

SATA DVD drives are used in close proximity to HDDs all the time and have been for years. There is no issue here.

[cloudff7]

The 29" CRT TV remains a few centimeters next to the closet inside the closet drawer. I store the 2.5" laptop HDD inside a USB 3.0 case and inside the Orico box. When I handle the HDD and remove it from the drawer on the way to the bedroom, I pass in front of the 29" CRT TV, which is turned off.

[Blue4130]

3 minutes ago, cloudff7 said:

The 29" CRT TV remains a few centimeters next to the closet inside the closet drawer. I store the 2.5" laptop HDD inside a USB 3.0 case and inside the Orico box. When I handle the HDD and remove it from the drawer on the way to the bedroom, I pass in front of the 29" CRT TV, which is turned off.

You do know that harddrives have quite strong magnets inside of them right? If they are not affected by their own magnets, they will not be affected by a TV.

 

As an experiment, take something metal like a screw or other object that is attracted to a magnet. Try to put it on the side of the TV. Does it stick? No. TV's are usually quite well shielded.

[cloudff7]

TV CRT big 29" is strong demagnetize hdds 2.5"?

[Dr. Will0hlep]

Just now, cloudff7 said:

TV CRT big 29" is strong demagnetize hdds 2.5"?

No. I mean don't test it, but it will be fine.