Using a USB thumb drive for backups?
in [Mac Systems]
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From: isw on 18 Dec 2009 13:33 Not with Time Machine, but with "backuplist+", which does them once a week. Pros/cons? Isaac
From: Jolly Roger on 18 Dec 2009 13:48 In article <isw-AC315E.10332418122009@[216.168.3.50]>, isw <isw(a)witzend.com> wrote: > Not with Time Machine, but with "backuplist+", which does them once a > week. > > Pros/cons? What if you lose it? Perhaps <https://www.ironkey.com> is the answer. -- Send responses to the relevant news group rather than email to me. E-mail sent to this address may be devoured by my very hungry SPAM filter. Due to Google's refusal to prevent spammers from posting messages through their servers, I often ignore posts from Google Groups. Use a real news client if you want me to see your posts. JR
From: nospam on 18 Dec 2009 14:22 In article <isw-AC315E.10332418122009@[216.168.3.50]>, isw <isw(a)witzend.com> wrote: > Not with Time Machine, but with "backuplist+", which does them once a > week. > > Pros/cons? maybe for a few files, but when i think of backups, i think of where to put several hundred gigabytes.
From: Fred Moore on 18 Dec 2009 16:41 In article <isw-AC315E.10332418122009@[216.168.3.50]>, isw <isw(a)witzend.com> wrote: > Not with Time Machine, but with "backuplist+", which does them once a > week. > > Pros/cons? NO! NO! NO! NO! NO! NO! NO! NO! NO! NO! NO! NO! NO! NO! NO! NO! NO!... ....if by 'backup' you mean a REAL backup in the sense that we usually use it here (secure copy of data from which the data can be recovered _uncorrupted_ at some time months or even years in the future), and not just an extra convenience copy or a copy to sneakernet to another machine. RAM chips are FRAGILE! Static electricity either by a single jolt or through accumulated smaller zaps will KILL integrated circuits. The microscopic connections on integrated circuits are TINY (think nanometers). Every exposure to high voltage (and the voltage doesn't have to be that high) vaporizes a small amount of the metal in one or more of the connections. Sooner or later the last molecule of gold or copper escapes into the cosmos from which it came, and the RAM chip is hosed. Some of the better constructed thumb drives claim to have electrical circuit buffering to extend their lives, but they are still vulnerable. Strong magnetic fields and x-rays can also corrupt/destroy integrated circuits. Why aren't the RAM chips inside your computer just as fragile? THEY ARE! except that the computer manufacturers take a number of steps to protect all of the semiconductors inside the machine. And none of the above addresses losing a thumb drive because it falls out of your pocket when you go for your car keys, or other numerous and mundane accidents. For more info on semiconductors and static electricity, Google can be your guide.
From: nospam on 18 Dec 2009 16:45
In article <fmoore-9670B1.16410918122009(a)feeder.eternal-september.org>, Fred Moore <fmoore(a)gcfn.org> wrote: > RAM chips are FRAGILE! not really. > Static electricity either by a single jolt or > through accumulated smaller zaps will KILL integrated circuits. a large zap might kill it, smaller ones probably not. > The > microscopic connections on integrated circuits are TINY (think > nanometers). Every exposure to high voltage (and the voltage doesn't > have to be that high) vaporizes a small amount of the metal in one or > more of the connections. Sooner or later the last molecule of gold or > copper escapes into the cosmos from which it came, and the RAM chip is > hosed. Some of the better constructed thumb drives claim to have > electrical circuit buffering to extend their lives, but they are still > vulnerable. no > Strong magnetic fields and x-rays can also corrupt/destroy integrated > circuits. no > Why aren't the RAM chips inside your computer just as fragile? THEY ARE! > except that the computer manufacturers take a number of steps to protect > all of the semiconductors inside the machine. as does anyone else who uses them > And none of the above addresses losing a thumb drive because it falls > out of your pocket when you go for your car keys, or other numerous and > mundane accidents. there is that > For more info on semiconductors and static electricity, Google can be > your guide. and hopefully will result in more accurate information. |