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99%
Detect failures and ensure high availability
22.05.2023
Home »  Archive  »  2023  »  Issue 75: Teamwork  » 
Photo by Tim Foster on Unsplash
Petros Koutoupis ... ://www.linux-ha.org/wiki/Resource_Agents The Author Petros Koutoupis is currently a senior performance software engineer at Cray (now HPE) for its Lustre High Performance File System division. He is also the creator and maintainer of the Rapid
99%
Introducing parity declustering RAID
28.11.2022
Home »  Archive  »  2022  »  Issue 72: OpenS...  » 
Lead Image © Author, 123RF.com
Petros Koutoupis ... .html The Author Petros Koutoupis is a senior performance software engineer at Cray (now HPE) for its Lustre High Performance File System division. He is also the creator and maintainer of the RapidDisk Project
99%
Lustre HPC distributed filesystem
07.04.2022
Home »  Archive  »  2022  »  Issue 68: Autom...  » 
Photo by Efe Kurnaz on Unsplash
Petros Koutoupis ... in this article: https://downloads.whamcloud.com/public/e2fsprogs/latest/el8/RPMS/x86_64 IOR (and MDTest): https://github.com/hpc/ior The Author Petros Koutoupis is currently a senior
14%
Working with the Lustre Filesystem
24.02.2022
Home »  HPC  »  Articles  » 
the Author Petros Koutoupis is currently a senior performance software engineer at Cray (now HPE) for its Lustre High Performance File System division. He is also the creator and maintainer of the Rapid
99%
When I/O workloads don't perform
02.08.2021
Home »  Archive  »  2021  »  Issue 64: Bare...  » 
Lead Image © Viacheslav Iakobchuk, 123RF.com
Petros Koutoupis ... Linux Kernel Archives: http://kernel.org/ Flame graph: https://github.com/brendangregg/FlameGraph The Author Petros Koutoupis is currently a senior performance software engineer
100%
Unleashing Accelerated Speeds with RAM Drives
02.08.2021
Home »  Archive  »  2021  »  Issue 64: Bare...  » 
Lead Image © Vladimir Nenov, 123RF.com
Petros Koutoupis ... , if you invoke the rapiddisk utility to list all RAM drive targets, none should be listed: $ sudo rapiddisk -l rapiddisk 7.2.0 Copyright 2011 - 2021 Petros Koutoupis ** Unable to locate any Rapid
15%
When I/O Workloads Don’t Perform
12.05.2021
Home »  HPC  »  Articles  » 
of isolating and diagnosing the root cause of your performance troubles. The Author Petros Koutoupis is currently a senior performance software engineer at Cray (now HPE) for its Lustre High Performance File
99%
Rethinking RAID (on Linux)
25.03.2021
Home »  Archive  »  2021  »  Issue 62: Lean...  » 
Lead Image © nikkikii, 123RF.com
Petros Koutoupis ... _cache 20480 0 rapiddisk 20480 0 create a single 2GB ramdisk, $ sudo rapiddisk --attach 2048 rapiddisk 6.0 Copyright 2011 - 2019 Petros Koutoupis Attached device rd0 of size 2048 Mbytes verify
15%
Rethinking RAID (on Linux)
16.03.2021
Home »  HPC  »  Articles  » 
_cache        20480  0 rapiddisk              20480  0 create a single 2GB ramdisk, $ sudo rapiddisk --attach 2048 rapiddisk 6.0 Copyright 2011 - 2019 Petros Koutoupis Attached device rd0 of size 2048 Mbytes verify
99%
Tuning ZFS for Speed on Linux
02.06.2020
Home »  Archive  »  2020  »  Issue 57: Artif...  » 
Lead Image © Wong Yu Liang, 123RF.com
Petros Koutoupis ... and improvements in the near future. Infos ZFS on Linux: https://zfsonlinux.org/ The Author Petros Koutoupis is currently a senior performance software engineer at Cray for its Lustre

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