- #21 [kennycwc], 23-11-04 21:51THX!!!
- #22 [Ming Sir], 23-11-04 22:15Re#12,
從價錢得知佢係假?咁淘佬賣幾錢? Thx ! - #23 [呀金], 24-04-15 00:50
提示:不要在长期闲置的U盘存放照片或备份
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- #24 [alexanderkoo], 24-04-15 06:25USB flash drive? SATA external ssd.
- #25 [Mercury2015], 24-04-15 13:13Memory cards and USB drives are NOT designed for long term storage. You should always backup your data on to another device. The data will normally stay valid for a period of up to 10 years if stored under normal conditions. The data cells inside carry a charge which can dissipate over time. The data can be refreshed; copy all data off card and then format the card or USB drive and then restore all data to extend the data for another 10 years.
https://www.integralmemory.com/faq1/how-long-will-data-stay-valid-for-on-a-usb-drive/ - #26 [呀金], 24-04-15 19:22我90年代已經有接觸 Flash Memory,當時做野間公司有用 Intel Flash Memory 作為 BIOS 儲存,已經有類似 BIOS content lost 的現象,不過機會率又唔算好高。
- #27 [Mercury2015], 24-04-16 10:04咁請問每隔三到五年把 SSD 和 HDD 裏面打算長期儲存的所有資料再次讀取和寫入一次是否有助改善這個資料遺失的問題呢?
- #28 [skyliner], 24-04-16 10:47怕死碟,不如back上雲?
- #29 [呀金], 24-04-16 14:59#27
係可以的,SSD靠電荷儲存,電荷會慢慢流失,到流失到某一水平之後,就唔會知道它應該是0還是1,如果讀出來再重寫一次,即係將電荷重新注回正常水平,又可以支撐一段日子。
HDD也類似,只不過是用磁場估存數據,磁場也有衰減的可能性,但相對電荷慢好多。 - #30 [Mercury2015], 24-04-16 18:30#29
謝謝回覆, 我都覺得咁做應該有幫助. 我試過部 HDD 放咗幾年之後拎出嚟讀資料一時得一時唔得, Low level format 之後重新再用發覺冇乜問題. - 返回 ...