Re: [lustre-discuss] Backup software for Lustre

Would it be difficult to suspend IO and snapshot all the nodes (assuming ZFS). Could you be sure that your MDS and OSS are synchronised? On 7 February 2017 at 19:52, Mike Selway wrote: > Hello Brett, > >Actually, looking for someone who uses a commercialized >

Re: [lustre-discuss] Backup software for Lustre

Hello Brett, Actually, looking for someone who uses a commercialized approach (that retains user metadata and Lustre extended metadata) and not specifically the manual approaches of Chapter 17. Thanks! Mike Mike Selway | Sr. Tiered Storage Architect | Cray Inc. Work

[lustre-discuss] What do you use to monitor Lustre

As a continuation to my recent question on traffic compression/caching I was wondering what others use to monitor their Lustre performance Currently I have collectl running on all clients, the data gets shipped by filebeat to an ELK+Grafana stack. Hoping to soon also deploy collectl on the

Re: [lustre-discuss] LNET Self-test

Because the stat command is “lst stat servers”, the statistics you are seeing are from the perspective of the server. The “from” and “to” parameters can get quite confusing for the read case. When reading, you are transferring the bulk data from the “to” group to the “from” group (yes, seems

Re: [lustre-discuss] Traffic compression?

Hi Ben, On Mon, Feb 6, 2017 at 10:51 PM, Ben Evans wrote: > My initial question is what are you measuring and where are you measuring > it? > The tool I'm using is collectl, it in turn is calling perfquery once a minute and at the end reports back the difference between the

Re: [lustre-discuss] LNET Self-test

Probably doing something wrong here, but I tried to test only READING with the following: #!/bin/bash export LST_SESSION=$$ lst new_session read lst add_group servers 10.0.12.12@o2ib lst add_group readers 10.0.12.11@o2ib lst add_batch bulk_read lst add_test --batch bulk_read --concurrency 12