Re: [lustre-discuss] LNet Multi-Rail config

2024-02-22 Thread Horn, Chris via lustre-discuss
Can you share the client’s cpt configuration? $ lctl get_param cpu_partition_table cpu_partition_distance Chris Horn From: lustre-discuss on behalf of Gwen Dawes via lustre-discuss Date: Wednesday, February 14, 2024 at 11:19 AM To: lustre-discuss@lists.lustre.org Subject: Re:

[lustre-discuss] Question about Single OST Performance Bottleneck

2024-02-22 Thread Zuoru Yang via lustre-discuss
Hi all, I have a question regarding the performance bottleneck of a single OST. We have high-performance SAN storage, which can provide high raw write bandwidth with a single LUN (e.g., about 10GiB/s). We evaluate the write performance of a single OST (based on a single LUN) via

Re: [lustre-discuss] open() against files on lustre hangs

2024-02-22 Thread Bertschinger, Thomas Andrew Hjorth via lustre-discuss
Hello Jan, More often than not, when I see stat() syscalls hanging, it's due to a communication issue with an OSS rather than an MDS. I think the message about "Lustre: comind-MDT: haven't heard from client ..." may be a downstream effect of the client hanging (maybe due to an OSS issue),

[lustre-discuss] open() against files on lustre hangs

2024-02-22 Thread Jan Andersen via lustre-discuss
I have the beginnings of a lustre filesystem, with a server, mds, hosting the MGS and MDS, and a storage node, oss1. The disks, /mgt and /mdt on mds and /ost on oss1 mount, apparently without error. I have set up a client, pxe, which mounts /lustre: root@node080027eb24b8:~# mount -t lustre