Wachy is a new Linux performance debugging tool that Rubrik recently released as open source. It enables interesting new ways of understanding performance by tracing arbitrary compiled binaries and functions with no code changes. This blog post briefly outlines various performance debugging tools that we commonly use, and the advantages and disadvantages of each. Then, we discuss why and how we built wachy.

Protecting your data in the cloud is fundamental to your security posture in terms of business continuity and disaster recovery. While Rubrik customers utilize the cloud every day to safely store off-site copies of their data, this blog is going to explain how we’ve made that practice even safer! We know that security threats to backup systems are on the rise, with hacking, malware, and even human error becoming more prevalent in the age of remote work.

It was 11 PM on a Friday in November of 2019. WED2B IT systems administrator Jamie Jeeves started receiving a barrage of email alerts warning that antivirus (AV) clients were crashing in the company’s central office. All prospects for a relaxing weekend vanished when Jeeves logged into the remote system to investigate the AV shutdowns. While checking the network’s file share, Jeeves noticed they were in trouble. Mass encryption of data was underway.

Part 2 in this series dealt with filesystem tree generation. In this part, we will look into the data of the files themselves and how they relate to tree generation.