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IntegrityChecker Diagnoses a Failing SAN (Storage Area Network) that is Corrupting Files
Don’t buy insurance after the fire—get data integrity assurance now.
IntegrityChecker Java (icj) supports Mac, Windows, Linux, etc—anything with Java. It is n unrivalled and unique cross-platform data integrity solution.
Operates with any file system: that means hard drives, SSDs (“flash drives”), file shares, storage area networks (SAN), even Cloud volumes, contents of zip files, etc.
Implemented in Java, icj has the highest likelihood of still running fine 20 years from now, as compared to 'native' applications which quickly rot on the shelf, as operating systems (particularly macOS!) render applications unusable or problematic with changes over time. You might not care if your 'app' on your iPhone needs updates every 13 days, but that’s the last thing you want with software to validate your data.
IntegrityChecker diagnoses a bad SAN (Storage Area Network)
An icj user writes:
Our bad boy SAN can't be trusted for anything it seems. Thanks for the explanation on the icjh file corruption and for creating icj.... It is going to get mean a new SAN I can just feel it :)
<after icj was used)...>
Overall icj worked like a champ (and yes our SAN failed the test). I just wanted to past this error(s) to you. icj continued the verification run, so they weren't a show stopper for me.
WIND: the single error noted was due to the SAN corrupting icj’s hash data itself, corrupting out a hash entry with space characters. I’ve put in a friendlier error message. That SAN was destroying lots of data!
You don’t need the elusive bit rot to have issues; all you need is a bad/buggy software or hardware, which could destroy vast amounts of data if you lack the means to validate it.
BTW, on a 10 gigabit ethernet connection, icj will do ~1155 MiB/sec = 1212 MB/sec I/O speed, so verification is reasonably fast. In general, icj runs as fast as the device allows.
How-to quickly “best practices” your data
For an existing backup or SAN or whatever, first do an icj update on the originals, then sync the backup with a cloning program or similar to bring over the icj hashing data—extremely fast since only small files have to be copied. Then do an icj verify on the copy(ies).
Get it
Don’t buy insurance after the fire—get data integrity assurance now.
Download page for existing customers.
