https://safirsoft.com Japanese university loses 77 terabytes of search data due to software update bug
Data loss due to a backup error could mean worrying about losing several years of personal photos or, as in the case of Kyoto University in Japan, losing 77 terabytes of critical search data. The accident occurred when the university's supercomputer received a wrong update of its backup software, which accidentally deleted 34 million files over a two-day period.

This massive data loss was caused by a flawed script that was originally intended to remove old and unnecessary log files from Kyoto University's Cray/HPE supercomputer as part of a software update. However, this eventually removed 77 TB of massive research data between December 14-16, 2021 from the high-capacity computer backup disk / LARGE0.

The university initially estimated that up to 100 TB of data is lost. Bug Update deleted almost all files older than 10 days. The 77 terabytes of search data that had already been deleted contained 34 million files that affected 14 research groups. Although Kyoto university did not reveal the nature or details of the deleted search data, (Japanese) noted that the files belong to four groups that cannot be recovered.

https://safirsoft.com <b>university</b> of Japan lost 77 TB of <b>search</b> <b>data</b> <b>due</b> to <b>software</b> updates

The university's supercomputer provider, Hewlett-Packard Japan (HPE) accepted 100% responsibility for the accident and later issued a university-issued letter of apology.” It was released, according to The Stack.

However, HPE said it was not aware of the side effects of this behavior that caused it to be modified. It triggers "undefined variables" and deletes files on the LARGE0 supercomputer disk.

Kyoto university has since suspended the backup process. That's it In addition to mirror backups, the university also plans to keep additional backups after resuming the backup program later this month.



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