Sebastien Chabrolles
IT Specialist - Linux On Power System at IBM
Montpellier, Occitania, France
Summary
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Rockstar🎓
Top SchoolSebastien Chabrolles is an IT specialist and technical leader with 11+ years focused on Linux on IBM Power Systems, based in Montpellier, France. At IBM’s European Power System Linux Center he drives benchmarks, PoCs, reference architectures and customer briefings while liaising closely with IBM Labs and ISVs. He authored performance best practices and Redbooks for Power platforms and led the Power Benchmark Center, blending deep performance tuning expertise with practical deployment experience. An active open-source contributor, he enhanced the widely used Relax-and-Recover recovery tool with Power-specific multipath and bootloader improvements, demonstrating attention to low-level fault recovery for ppc64le environments. His background in UNIX/Linux services and benchmarking gives him a rare combination of hands-on systems engineering and cross-organizational influence.
11 years of coding experience
Ingenieur Informatique, Ingenieur Informatique at Ecole supérieure d'Informatique, Electronique et Automatique / ESIEA
French, English
Github Skills (8)
system-administration10
bash10
linux-kernel10
powerpc8
computer-architecture8
architecture8
scripting8
architectures8
Programming languages (11)
Github contributions (5)
rear/rear
May 2016 - Mar 2019
Relax-and-Recover - Linux bare metal disaster recovery and system migration solution (cfr. mksysb, ignite)
Role in this project:
Backend Developer
Backend DeveloperContributions:1 review, 307 commits, 120 PRs in 2 years 9 months
Contributions summary:Sebastien's primary focus was on modifying the Relax-and-Recover (rear) tool, specifically related to bootloader configuration and rescue image creation. Their contributions include enhancing the Grub2 configuration by using UUIDs for filesystem identification and modifying the process for creating the REAR menu entry. Furthermore, the user worked on incorporating multipath support, addressing issues with device naming and ensuring proper handling of multipath devices during system recovery, particularly for the powerpc64 and ppc64le architectures. They also improved the management of kernel parameters and added a TSM backup mechanism.
metalfreebsdbarebare-metaldisaster
schabrolles/rhacm
Aug 2021 - Jan 2024
Contributions:201 pushes, 3 branches in 2 years 5 months
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