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Giveaway of the day — Bitrot Detector 16.1
Bitrot Detector はファイル をスキャンしてデジタル・フィンガープリント を作成。
$24.00
期限切れ
ユーザーの評価:
66
コメントを残す
Bitrot Detector 16.1< のgiveaway は 2016年7月25日
本日の Giveaway of the Day
PDF ドキュメントを暗号化します。
Bitrot Detector はファイル (すべて、または特定のもの)をスキャンしてデジタル・フィンガープリントをそれぞれに (SHA-2ハッシュ、特別な)を作成。またファイルのロケーションとサイズをトラック。最初のスキャン後に Bitrot Detectorが一定期間のスキャンを実施しフンガープリントを比較してファイルの変更があったかどうかを確認。そして不必要な変更を確認してバックアップファイルから問題のあるものを回復、削除。(Bitrot Detectorはスキーマ比較によりバックアップソフトを利用するか指定したファイルから回復するかを選択可能。)
ハードドライブのクラッシュやコンピューターを紛失した際にはバックアップが必要だが、データーの損失に気がつかない場合があり、 Bitrot Detector,で定期的にスキャンすることで早期に失くしたデーターの存在を認識可能。
必要なシステム:
Windows XP or later
出版社:
Domador Softwareホームページ:
http://www.domador.net/products/brd/overview/ファイルサイズ:
9.8 MB
価格:
$24.00
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コメント Bitrot Detector 16.1
Please add a comment explaining the reason behind your vote.
Downloaded and installed in the hope that there would be a good help file included with the program, but no.
Informed me that there was a tutorial which I didn't really get the hang of, not enough detail.
It goes on about "more subtle forms of data loss" in the blurb on this page but no detail as to how and when this can occur.
I do know that I have lost data within Windows with no apparent explanation as to why, this program will inform me that it has happened but a hash will not help me recover it.
It does and records a hash of files, it repeats the process later and if it finds a difference it will report it.
It is appears to be what the program does, and I have no idea what use this can be put to.
Maybe someone can enlighten me as to the use of this program, I'm totally confused.
One point, it wanted my Windows password before commencing the scan, and I don't use one and I've no idea how important this is to the program.
But then I'm totally confused by the program anyway.
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I started scanning a few of my folders, full of different stuff (about 400 GB of data on 500 GB SSD). And I noticed the program is slower with every hour of work. Despite the fact it's running on SSD drive, during 8 hours run it scanned about 100K of files within 8K of folders. This perhaps could be considered as normal, but now, it scans one small file (a few KBs) per second, but when it started, it was scanning a few hundred of such small files per second.
I also turned my AV off, because it was taking 100% of CPU, but now bitrotdetector.exe takes 100% of the CPU.
I also noticed weird thing: my whole drive is 500 GB. When I looked at the statistics of the process bitrotdetector.exe in processmanager, it said that this process read 685 GB of IO data, and wrote 185 GB of IO data, but the scan is not even complete, and my selected folders contains about 400 GB of data, and the scan is not even in 80% complete!
I will test the software more thoroughly, but I feel it contains some glitches or bugs. I definitely need to split my scan into small folders and see how it runs then.
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I took a deeper look. It seems the process was reading and writing only two files for 99% of time - it was C:\Users\myuser\AppData\Roaming\Bitrot Detector\BitrotDetector.sqlite-wal which was 190 MB of size and C:\Users\myuser\AppData\Roaming\Bitrot Detector\BitrotDetector.sqlite which was 45 MB of size.
For a few seconds of monitoring, there were about 200 IO operations on real files with my data, and about 180000 of operations on these two files. It means, that the database operations are not very optimal... even sqlite supports transactions, and the program could cache some values before importing them to the database.
I am not impressed.
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Download, install and registration probblem free. First impression is that the GUI is very bland, there is no help file and the tutorial isn't much help. Ran a scan of my main drive which took quite a while to complete, but scan time would depend on the number and size of files it has to scan. Then I uninstalled a little used program and installed two new programs and after rebooting ran the scan again. The results were disapointing, it did not detect the uninstallation or the installation of software and said no significant changes detected - The changes were very significant ... From the not very informative blurb I got the impression this would detect any changes to files/folders on the drive and produce a report with the details ... It didn't, as far as I can see this doesn't really do anything to merit taking up space on my drive. It's also quite heavy on resources. Not worth keeping and uninstalled. Maybe I missed something, feel free to enlighten me if I did.
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Nice idea but the problem with this program is that a lot of files are continously changing in the computer especially the system files. The program is going to report on a lot of file changes.
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