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Thread: HELP!!! i accidently formated my CF card

  1. #41

    Default Re: HELP!!! i accidently formated my CF card

    Quote Originally Posted by leowyien View Post
    My hard dick dropped off the window ledge down 2 stories. It survived without a dent and the DATA was ok!!!
    you can store data there.

    i thought at best got dna only

  2. #42
    Senior Member ovaltinemilo's Avatar
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    Default Re: HELP!!! i accidently formated my CF card

    Quote Originally Posted by leowyien View Post
    My hard dick dropped off the window ledge down 2 stories.

    Rather cool story on your hard dick...hope you don't place your hard dick on the window ledge again
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  3. #43
    Member Alan Chan's Avatar
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    Default Re: HELP!!! i accidently formated my CF card

    Quote Originally Posted by ManWearPants View Post
    Neither am I trying to prove anything nor correct anyone. I am just sharing my opinion on consumer redundancy methods since this discussion has started. Of course, everyone's solution to the same problem differs.

    Anyone with experience with online backup. Are they fast to backup to and restore from? Any confidentiality issues with these service providers?
    ok bro sorry again if i seems rude, msg r emotionless. truce.

    about online backup, i read story on other forum about paid service shutting down n the poor guy lost all his photo.
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  4. #44
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    Default Re: HELP!!! i accidently formated my CF card

    Quote Originally Posted by Alan Chan View Post
    ok bro sorry again if i seems rude, msg r emotionless. truce.

    about online backup, i read story on other forum about paid service shutting down n the poor guy lost all his photo.
    really. nothing against you and you do not need to be apologetic. This is a forum. Msg comes fast and furious.

    ok. that's the end for online backup for me.

  5. #45
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    Default Re: HELP!!! i accidently formated my CF card

    No... when 1 fails, u can still use the other as per normal. But u had better pray hard hard it wont fail b4 u replace the faulty HD. I have used Raid1 on all my 3 home PCs and NAS using Promise TX2000 IDE RAID for >5yrs. Nvr a failure and nvr need reinstall my OS. Absolutely reliable. Only time things fail is when the user/malware delete ur files. Such actions RAID also cant help, so NAS can help reduce this probability.

    Go for reputed brands like Promise, Arecca, Highpoint. They cost more but definitely much better than those $20 no-brand ones. I had tried a cheap $20 one... let it mirror my 80GB HD (few yrs back) over nite and still not done. My Promise does it in 30mins. Reliability is worth paying for...

    Quote Originally Posted by ManWearPants View Post
    Sometimes I wonder about the real benefits of RAID 1. While it protects data loss in the event of a single hard disk failure. But more often than not, it is the consumer raid controller that fails first. Also when a single harddisk fails, you are likely not able to access to the remaining harddisk until you replaced the failed harddisk and have the raid array up again. And if you take out the remaining hdd and plug it to a PC running Linux/Win/Mac, it will likely to be not recognised.

    I will just get a single hdd NAS that allows for scheduled back-up to an external usb device on FAT32.

    -------------

    Back to the TS' problem.

    Sandisk provide RescuePro
    http://www.lc-tech.com/rescuepro/

    Transcend provide Photo Recovery
    http://www.transcendusa.com/Products...toRecovery.asp

    There are a lot of data recovery software on the Internet. You can see which works for you. I am also trying to recover one photo which I have erased and written over. Will revert if I am successful.

  6. #46
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    Default Re: HELP!!! i accidently formated my CF card

    Thanks. Used to run Raid 0+1 on WinXP and run into loads of problems when hdd/controller/mobo fails. It is the effort required to recover from the diaster that puts me off. So now I keep my PC setup simple (1 hdd and use native drivers) and use Synology NAS for data storage and have it replicate with another Synology NAS. Then backup to an external usb hdd on a monthly basis. Best part is it is driven by the NAS OS.

    Synology NAS quite reliable. More than 3 years now. No major disaster yet. Touch wood.
    http://www.synology.com/enu/index.php

    Quote Originally Posted by cookie88 View Post
    No... when 1 fails, u can still use the other as per normal. But u had better pray hard hard it wont fail b4 u replace the faulty HD. I have used Raid1 on all my 3 home PCs and NAS using Promise TX2000 IDE RAID for >5yrs. Nvr a failure and nvr need reinstall my OS. Absolutely reliable. Only time things fail is when the user/malware delete ur files. Such actions RAID also cant help, so NAS can help reduce this probability.

    Go for reputed brands like Promise, Arecca, Highpoint. They cost more but definitely much better than those $20 no-brand ones. I had tried a cheap $20 one... let it mirror my 80GB HD (few yrs back) over nite and still not done. My Promise does it in 30mins. Reliability is worth paying for...
    Last edited by ManWearPants; 20th May 2010 at 09:52 PM.

  7. #47
    Member Alan Chan's Avatar
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    Default Re: HELP!!! i accidently formated my CF card

    Quote Originally Posted by krazyman View Post
    Already told you Raid is not equal to backup. Do a bit of research on this, may be you'll understand better.

    Eg of situation the Raid will not save you are:
    1. Accidental delete of files/folders,
    2. Accidental format of wrong partition,
    3. Over voltage damaging both HDs simultaneously,
    4. Environement factors like fire, flooding, etc.

    Raid 1 only save you from single HD failure, not from the rest.
    i was focuing on zack's case of HDD failure only. period. you are right about raid not equal to backup, i never said it was. and pls let our friendly daredevil answer his own post. thanks.

    just as a side note, you are right about the above, i only add on a few pointers:
    1. accidental delete is human error, main or backup can also applies.
    2. accidental format also same as 1.
    3. unless both main n backup belongs to diff power grid, or else they face the same risk just maybe not at the same time unless power outage during backup.
    4. make no diff if both main and backup are near to one another, the backup should be far away enough from main so that the same fire or flood wont consume them both.
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  8. #48
    Member Alan Chan's Avatar
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    Default Re: HELP!!! i accidently formated my CF card

    Quote Originally Posted by ManWearPants View Post
    Thanks. Used to run Raid 0+1 on WinXP and run into loads of problems when hdd/controller/mobo fails. It is the effort required to recover from the diaster that puts me off. So now I keep my PC setup simple (1 hdd and use native drivers) and use Synology NAS for data storage and have it replicate with another Synology NAS. Then backup to an external usb hdd on a monthly basis. Best part is it is driven by the NAS OS.

    Synology NAS quite reliable. More than 3 years now. No major disaster yet. Touch wood.
    http://www.synology.com/enu/index.php
    RAID 0 only improves read write speed right? thats why cant use as normal HDD if one of them or the controller fail. i'm more concern about data lost than speed lost, so i choosed 1 over 0+1.
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  9. #49
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    Default Re: HELP!!! i accidently formated my CF card

    Quote Originally Posted by Alan Chan View Post
    RAID 0 only improves read write speed right? thats why cant use as normal HDD if one of them or the controller fail. i'm more concern about data lost than speed lost, so i choosed 1 over 0+1.
    Yes, Raid 0 is data striped across 2 disks for faster rw. Raid 0+1 is striped and then mirrored. Those were the 40-80GB hdd days when hdd is still expensive and consumer NAS not available. I have so many 40GB hdd then . Now you have 1TB hdd to take care of everything.

  10. #50

    Default Re: HELP!!! i accidently formated my CF card

    Quote Originally Posted by Alan Chan View Post
    i was focuing on zack's case of HDD failure only. period. you are right about raid not equal to backup, i never said it was. and pls let our friendly daredevil answer his own post. thanks.

    just as a side note, you are right about the above, i only add on a few pointers:
    1. accidental delete is human error, main or backup can also applies.
    2. accidental format also same as 1.
    3. unless both main n backup belongs to diff power grid, or else they face the same risk just maybe not at the same time unless power outage during backup.
    4. make no diff if both main and backup are near to one another, the backup should be far away enough from main so that the same fire or flood wont consume them both.
    Since you've added pointers to my post, can I reply now?

    Yes, 1 & 2 are human errors. But what is the likelihood of same mistake happening twice around the same time? The HDs failure can be caused by the NAS power supply fault.

    No offence, but this is an open forum right? If it's a private conversation, then should take it offline.

  11. #51
    Member Alan Chan's Avatar
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    Default Re: HELP!!! i accidently formated my CF card

    Quote Originally Posted by krazyman View Post
    Since you've added pointers to my post, can I reply now?

    Yes, 1 & 2 are human errors. But what is the likelihood of same mistake happening twice around the same time? The HDs failure can be caused by the NAS power supply fault.

    No offence, but this is an open forum right? If it's a private conversation, then should take it offline.
    relax, dun have to ask for permission, like you said its an open forum. but strangely my last post to yours said you are right, just expanded the points you made, so i dont see the need to reply on that.

    well to be frank your sentence of "Already told you Raid is not equal to backup. Do a bit of research on this, may be you'll understand better." seems to implied that i talk without knowing the facts. ofcoz i feel that i need to clear the misunderstanding, in case ppl think i'm talking thru my butt.
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  12. #52

    Default Re: HELP!!! i accidently formated my CF card

    Quote Originally Posted by leowyien View Post
    My hard dick dropped off the window ledge down 2 stories. It survived without a dent and the DATA was ok!!! Get a toshiba hard disc. Best!
    Quote Originally Posted by night86mare View Post
    you can store data there.

    i thought at best got dna only
    Quote Originally Posted by ovaltinemilo View Post
    Rather cool story on your hard dick...hope you don't place your hard dick on the window ledge again
    the only post i read seriously serious hahahahahahahhaha

    cheers
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  13. #53

    Default Re: HELP!!! i accidently formated my CF card

    Quote Originally Posted by Alan Chan View Post
    relax, dun have to ask for permission, like you said its an open forum. but strangely my last post to yours said you are right, just expanded the points you made, so i dont see the need to reply on that.

    well to be frank your sentence of "Already told you Raid is not equal to backup. Do a bit of research on this, may be you'll understand better." seems to implied that i talk without knowing the facts. ofcoz i feel that i need to clear the misunderstanding, in case ppl think i'm talking thru my butt.
    Peace..no offence.

    Sorry if my choice of words seem harsh. I guess I responded becos 1 of your post seem confusing between redundancy and backup.

  14. #54
    Member Alan Chan's Avatar
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    Default Re: HELP!!! i accidently formated my CF card

    Quote Originally Posted by krazyman View Post
    Peace..no offence.

    Sorry if my choice of words seem harsh. I guess I responded becos 1 of your post seem confusing between redundancy and backup.
    None taken. Truce.
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  15. #55

    Default Re: HELP!!! i accidently formated my CF card

    Quote Originally Posted by krazyman View Post
    Quick or full format affect the data exactly the same. What full format does that quick doesn't is a full scan.
    Full format zeroes every sector on the partition and recreates the filesystem, so software data recovery is no longer possible.

  16. #56

    Default Re: HELP!!! i accidently formated my CF card

    Quote Originally Posted by ManWearPants View Post
    I managed to recover a photo despite having written over the same CF card. I used RescuePro for this one. I remembered DoD requires 4 overwrites to securely wipes off data. So even if you overwrite it once or twice, there is still a probablity to recover. Of course, this probability is reduced each time you overwrites.

    I am unsure of a full format though. I have tried using this software (need to pay) to recover a formatted and overwritten once hdd with limited success. Only 30% data recoverable.
    http://www.stellarphoenix.org/
    If you overwrite the sector containing the file data, software recovery will be impossible. Yes, you might still be able to recover it, but only using physical techniques such as magnetic force microscopy. Not that I'm aware of anyone providing such a service.

  17. #57

    Default Re: HELP!!! i accidently formated my CF card

    Quote Originally Posted by ManWearPants View Post
    Neither am I trying to prove anything nor correct anyone. I am just sharing my opinion on consumer redundancy methods since this discussion has started. Of course, everyone's solution to the same problem differs.

    Anyone with experience with online backup. Are they fast to backup to and restore from? Any confidentiality issues with these service providers?
    I don't use online backup services, but you could always encrypt your data for confidentiality.

  18. #58

    Default Re: HELP!!! i accidently formated my CF card

    Although I don't have evidence to support this, I believe hard disk failure is correlated (how strongly, i don't know). So with regards to hard disk failure, and not human errors, controller card failure, power surge, and other factors etc, is it possible that doing backups have marginal advantages over a RAID1 since
    1. the hard disks are not being used the same amount of time,
    2. you could use different hard disks.
    Well, 2 is true for RAID too, but normally the same model of hard disks (and even the same batch) is used.

  19. #59
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    Default Re: HELP!!! i accidently formated my CF card

    RAID is useless as a backup tool in most implementations. The whole point of RAID is to provide uninterrupted access to data in the case of a single drive failure. Having 2 or more drives hooked up to the same PSU and treating them as 'backup' is just asking for trouble.

  20. #60

    Default Re: HELP!!! i accidently formated my CF card

    Quote Originally Posted by tanpp View Post
    Full format zeroes every sector on the partition and recreates the filesystem, so software data recovery is no longer possible.
    You mind show me where you learnt this from?

    My stand is still that full format just does a additional scan to fix bad sectors compare to quick format, and you can read this Microsoft Support article Differences between a Quick format and a regular format.

    Here is another article on Difference between Full Format and Quick Format. And there are many more if you do a search.

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