nandobadam88
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1 A 2.5" HDD manufactured from 2010 onwards, housed in a USB 3.0 enclosure connected to a Windows 10 PC, and if I use the "eject" option in Windows 10 and the drive letter E: disappears, and then my hand hits the enclosure and it moves on the table, will this cause misalignment of the heads and mechanical arms, and will the heads rub against the platters, scratching them and damaging the data?
2 Platters coating IS resistent electromagnetic waves big crt 29 turn on for corrupt and damage filés?
3) Will the magnetic fields or electromagnetic waves generated by a large 29" CRT TV turned on at a distance of 2 or 3 cm from a 2.5" HDD (older model manufactured in 2010 or 2011) disrupt and interfere with the correct movement of the mechanical arms and read/write heads, causing read/write errors on the 2.5" HDD?
4) Do these electromagnetic waves and fields from the large CRT TV turned on at a distance of 2 cm from the 2.5" HDD (manufactured in 2010 or 2011) also cause magnetic degradation in the platters, corruption, and deletion of files from the platters?
5) 2.5" HDDs are compact and seemingly fragile compared to 3.5" HDDs. Can 2.5" HDDs be used for long-term data storage or not? The mechanics, electronics, and platters of 2.5" models are very different from those of models 3.5"?
6) So, a 2.5" HDD at a distance of 2cm from a large TV turn-on, and any magnetic degradation weakening in the HDD, exposure for a few minutes versus several hours or even 48 hours, is the result the same? Does the magnetic degradation in this case depend more on the strength of the external magnetic field or the exposure time?
7) Regarding the mechanics and lubricant, do the platters of 2.5" HDDs degrade faster with several hours of use every day, or with use powered on once a year for a few minutes? They are both in the same environment with the same humidity and temperature.
8) HDD 2.5" stored in 31-38C generates slow demagnetization platters?
9) 2.5" hdds need refresh rewrite data before 5 years similar flash memory and ssd?
all questuions for any all hdds 2.5" manufactured 2010. 2011? my models WD10JPVX‑08JC3T5 and HGST HTS541010A99E662, ST500LM030,
2 Platters coating IS resistent electromagnetic waves big crt 29 turn on for corrupt and damage filés?
3) Will the magnetic fields or electromagnetic waves generated by a large 29" CRT TV turned on at a distance of 2 or 3 cm from a 2.5" HDD (older model manufactured in 2010 or 2011) disrupt and interfere with the correct movement of the mechanical arms and read/write heads, causing read/write errors on the 2.5" HDD?
4) Do these electromagnetic waves and fields from the large CRT TV turned on at a distance of 2 cm from the 2.5" HDD (manufactured in 2010 or 2011) also cause magnetic degradation in the platters, corruption, and deletion of files from the platters?
5) 2.5" HDDs are compact and seemingly fragile compared to 3.5" HDDs. Can 2.5" HDDs be used for long-term data storage or not? The mechanics, electronics, and platters of 2.5" models are very different from those of models 3.5"?
6) So, a 2.5" HDD at a distance of 2cm from a large TV turn-on, and any magnetic degradation weakening in the HDD, exposure for a few minutes versus several hours or even 48 hours, is the result the same? Does the magnetic degradation in this case depend more on the strength of the external magnetic field or the exposure time?
7) Regarding the mechanics and lubricant, do the platters of 2.5" HDDs degrade faster with several hours of use every day, or with use powered on once a year for a few minutes? They are both in the same environment with the same humidity and temperature.
8) HDD 2.5" stored in 31-38C generates slow demagnetization platters?
9) 2.5" hdds need refresh rewrite data before 5 years similar flash memory and ssd?
all questuions for any all hdds 2.5" manufactured 2010. 2011? my models WD10JPVX‑08JC3T5 and HGST HTS541010A99E662, ST500LM030,
WD5000LPZX
Solution
- Joined
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Good — I’ll answer each of your nine questions directly for your 2.5" drives (WD10JPVX‑08JC3T5, HGST/HTS541010A99E662, ST500LM030, WD5000LPZX) and explain why, with actionable checks you can run. I’ll cite the forum/technical notes we used as sources for the important points. Short answers first, then short technical notes/actions.
1) If the drive was EJECTED in Windows (drive letter disappears) and you then bump the USB‑enclosure, can the heads rub the platters / get misaligned?
1) SMART quick check (Windows): install CrystalDiskInfo and look at:
1) If the drive was EJECTED in Windows (drive letter disappears) and you then bump the USB‑enclosure, can the heads rub the platters / get misaligned?
- Short answer: Very unlikely if eject completed successfully — Windows (and the drive firmware) issues park/spin‑down commands before the letter disappears, so the heads should be parked and platters stopped or idle. A light bump after eject normally will not cause head/platter contact.
- Why: “Safely Remove” flushes caches and sends STOP/standby commands so the drive parks heads and spins down; modern 2.5" drives include load/unload ramps, parking and shock protection. A severe shock is different, but a normal hand bump is unlikely to cause a head crash once the drive is parked.
- Short answer: The platter recording layers on modern drives are high‑coercivity thin‑film media and are resistant to ordinary household magnetic fields; a consumer CRT does not normally generate the field strength needed to erase those platters. The practical risk from a CRT is transient EMI or a degauss pulse causing I/O errors if the drive is active.
- Short answer: If the HDD is powered and actively reading/writing while extremely close to a CRT, there is a small but real risk of transient I/O errors (EMI, induced noise) especially during the CRT’s degauss/power‑up pulse. It is unlikely to physically move heads or cause mechanical misalignment directly — mechanical movement is caused by shock/vibration, not static EMI. Keep active drives away from powered CRTs during power‑up to avoid errors.
- Short answer: Permanent magnetic erasure of modern HDD platters from a consumer CRT at 2 cm is extremely unlikely. Direct erasure would require much stronger, continuous fields (industrial degausser or very large permanent magnet at contact). The realistic problem is transient I/O corruption while active, not platter erasure.
- Short answer: 2.5" drives can be used for long‑term storage but they have tradeoffs. 3.5" desktop/enterprise drives are generally preferred for large, stationary, long‑term archives because they often have stronger mechanical designs, higher workload ratings and better thermal handling. 2.5" drives are fine for many archival uses if you apply redundancy, environmental protection, verification and periodic migration.
- Short answer: No, not the same. For direct magnetic erasure the instantaneous field strength matters (a very strong field erases quickly). For cumulative issues (thermal ageing, corrosion, EMI fatigue, mechanical/thermal stress) duration matters — the longer the drive is powered and exposed to heat/humidity/EMI, the higher the cumulative risk. Practically: a short exposure to a moderate CRT field is unlikely to do permanent damage; continuous powered operation near noisy EMI sources or in a hot/humid environment increases the chance of both temporary and long‑term failures.
- Short answer: Different failure modes:
- Daily multi‑hour use increases mechanical wear (spindle hours, bearings, head actuation cycles, motor/lubricant stress) and operating thermal stress.
- Rare power‑on (cold storage) reduces mechanical wear but exposes media to continuous environmental stress (heat/humidity) while idle — that accelerates corrosion and slow magnetic ageing.
So neither is “always better” — pick your risk: run time increases mechanical risk; long hot/humid idle time increases corrosion/bit‑ageing risk. Use checks and migrate regularly to reduce both risks.
- Short answer: Not an instant wipe, but yes — elevated temperature increases thermal agitation and over long periods raises the probability of spontaneous bit flips (i.e., accelerates slow magnetic decay/bit‑ageing). Humidity adds corrosion risk to electronics/connectors. Therefore, 31–38 °C / 55–66% RH is worse for long‑term retention than cool/dry storage and shortens safe archival lifetime.
- Short answer: No — HDDs do not suffer NAND charge‑loss behavior that forces yearly rewrites. You do not need to rewrite everything yearly. But for reliable archival practice you should:
- Keep redundant copies,
- Verify integrity with checksums (e.g., SHA‑256) periodically, and
- Migrate critical archives to fresh media every few years (commonly recommended 3–7 years depending on environment and importance).
- Shock tolerance (non‑operating): WD10JPVX cited ~400–600 G, HTS541010A99E662 cited ~1000 G (non‑operating ratings differ by model — these show drives are designed to tolerate substantial shocks when powered‑off/parked). If you suspect a shock, check SMART attributes (G‑Sense, Reallocated Sectors, Pending) immediately.
1) SMART quick check (Windows): install CrystalDiskInfo and look at:
- Reallocated Sector Count, Current Pending Sector Count, Uncorrectable Sector Count, G‑Sense Error Rate. If any of these increase, copy data off immediately.
- Compute: Get-FileHash "D:\Important\File.ext" -Algorithm SHA256
- Compare with previously saved hashes to detect silent corruption.
- Use airtight anti‑static bags or small sealed containers with silica‑gel desiccant.
- Increase verification cadence to every 6–12 months, and plan media migration every 3–7 years for critical data.
- If any of the drives were powered and operating within 2–3 cm of a CRT when it powered up: move the drive >10–30 cm away, then run SMART and hash checks.
- If a drive was ejected then bumped: if it now behaves normally and SMART is clean, you’re fine; if you hear clicking/noise or SMART shows increased reallocated/pending sectors, copy data now.
- The guidance above is based on the drive design behavior and community/technical summaries covering: safe‑eject/parking behavior, modern high‑coercivity thin‑film platters (PMR/CMR/SMR), CRT degauss behavior and EMI risk, shock tolerance and SMART checks, and archival temperature/humidity guidance. See the discussion and technical notes cited in these results for the specific points I used: .
- Fetch and paste the official vendor datasheets (WD / HGST / Seagate / WD5000LPZX) so you have the exact operating and storage temperature/humidity and shock specs from each manufacturer (recommended), or
- Walk you step‑by‑step now through running CrystalDiskInfo on your Windows 10 PC and computing SHA‑256 hashes for a folder so you can verify your drives immediately?