[lustre-discuss] Call for Submission for the IO500 List

2019-09-12 Thread John Bent
*Call for SubmissionDeadline: 10 November 2019 AoEThe IO500 is now accepting and encouraging submissions for the upcoming 5th IO500 list revealed at SC19 in Denver, Colorado. Once again, we are also accepting submissions to the 10 Node I/O Challenge to encourage submission of

[lustre-discuss] IO500 @ ISC19

2019-04-18 Thread John Bent
Call for Submission *Deadline*: 10 June 2019 AoE The IO500 is now accepting and encouraging submissions for the upcoming 4th IO500 list to be revealed at ISC-HPC 2019 in Frankfurt, Germany. Once again, we are also accepting submissions to the 10 node I/O challenge to encourage submission of

[lustre-discuss] IO500 CFS for SC18

2018-10-25 Thread John Bent
Dear all, The IO500 is now accepting and encouraging submissions for the upcoming IO500 list revealed at Supercomputing 2018 in Dallas, Texas. We also announce the 10 compute node I/O challenge to encourage submission of small-scale results. The new ranked lists will be announced at our SC18 BOF

Re: [lustre-discuss] [lustre-devel] MDT test in rel2.11

2018-07-18 Thread John Bent
> > > -Cory > > > > > > -- > > > > > > *From: *lustre-devel on behalf of > Patrick Farrell > *Date: *Tuesday, July 17, 2018 at 11:50 PM > *To: *John Bent > *Cc: *"lustre-discuss@lists.lustre.org" , > "lustre-de...@lists.lust

Re: [lustre-discuss] [lustre-devel] MDT test in rel2.11

2018-07-17 Thread John Bent
ou’ve got data > corruption. > > So for now it’s strictly limited to tools that know about it (accessed via > an ioctl) and can accept information that may be stale. The intended use > case is scanning the FS for policy application. > > ------ > *Fr

Re: [lustre-discuss] [lustre-devel] MDT test in rel2.11

2018-07-17 Thread John Bent
I'm curious about how DOM improves IO500 scores. :) Also LSOM but I don't know actually whether that's in 2.11 or where. On Tue, Jul 17, 2018 at 11:33 PM, Patrick Farrell wrote: > > Abe, > > Any benchmarking would be highly dependent on hardware, both client and > server. Is there a

[lustre-discuss] IO500 Call for Submissions for ISC 2018

2018-05-23 Thread John Bent
IO500 Call for Submission Deadline: 23 June 2018 AoE The IO500 is now accepting and encouraging submissions for the upcoming IO500 list revealed at ISC 2018 in Frankfurt, Germany. The benchmark suite is designed to be easy to run and the community has multiple active support channels to help with

Re: [lustre-discuss] varying sequential read performance.

2018-04-05 Thread John Bent
"I suspect that this OSC is using an OSS that is under heavier load." If you want to confirm this, it seems like you could create files with striping parameters such that you have a single file on each OSS. Well, I know you can make stripe=1 so it's only on one OSS but can you control/query on

Re: [lustre-discuss] Level 3 support

2018-02-23 Thread John Bent
DDN offers L3. :) > On Feb 23, 2018, at 10:18 AM, Jeff Johnson > wrote: > > Media malpractice. Intel still has it's level 3+ Lustre support function. The > media reporting of Intel's org changes was poor at best. Some of the more > inexperienced vendors may

Re: [lustre-discuss] Designing a new Lustre system

2017-12-21 Thread John Bent
Last I looked at Isilon, it serializes parallel writes to a single file. Ultimately, the data is striped across multiple data servers but it all channels through a single data server. If you only have file-per-process workloads, and you have a lot of money, then Isilon is considered a solid

Re: [lustre-discuss] Lustre and Elasticsearch

2017-11-26 Thread John Bent
How does the lock manager avoid disk IO? Locks don’t survive MDS0 failure? > On Nov 26, 2017, at 8:29 PM, Dilger, Andreas wrote: > > The flock functionality only affects applications that are actually using it. > It does not add any overhead for applications that do

[lustre-discuss] IO-500 now accepting submissions

2017-10-28 Thread John Bent
right away in any of our various communications channels (as described in our documentation) if you encounter any problems with the benchmark or have questions about tuning or have suggestions for others. We hope to see your results in email and to see you in person at

[lustre-discuss] IO-500 now accepting submissions

2017-10-28 Thread John Bent
our various communications channels (as described in our documentation) if you encounter any problems with the benchmark or have questions about tuning or have suggestions for others. We hope to see your results in email and to see you in person at the SC BoF. Thanks, IO 500 Committee John Bent, Juli