Could you double check if creating container would cause NVMe free space dropping? If it’s true, please open a ticket for further investigation. I can’t think of why container creation could

If the space change isn't caused by reservation, what else might be causing this? What other things might I check? From: daos@daos.groups.io <daos@daos.groups.io> on behalf of Niu, Yawei

Hi, Chuck The reserved space is per pool, it’s not relevant with container creation, so I think the space change you observed after container creation isn’t caused by space reservation.

Thank you, Niu After thinking about what you said and running some additional experiments, I believe everything is working as you described. I created a 500 GB pool and added a POSIX container. After

Hi Lombardi, Yes finally I got the invite, thanks! -- Best Regards Kevin Zhao Tech Lead, LDCG Cloud Infrastructure Linaro Vertical Technologies IRC(freenode): kevinz Slack(kubernetes.slack.com):

Hi there, Please find below the DAOS community newsletter for June 2022. Past Events Salishan Conference On High Speed Computing (April 26th) Accelerating Data-driven Workflows with

Hi, Chuck The “used space” (total – free) is kind of OP (over-provisioning), you know that DAOS server has to reserve some space on both SCM and NVMe to ensure punch, container/object

Hello Chunk That is strange. According the output of dmg pool query, 83 objects were deleted after extend, so some space should be reclaimed. “dmg pool query kiddie ……… Rebuild

Wangdi When I checked this morning, the pool had been idle four days, but the values from daos_pool_query() have not changed. As for object class, I'm not sure. Pool creation didn't specify a class.

Hi Kevin, I see you on slack, so I assume that you eventually got the invite. Cheers, Johann From:<daos@daos.groups.io> on behalf of Kevin Zhao <kevin.zhao@...> Reply-To:

Hi DAOS, I've followed the guide to join the DAOS mailist, but I don't receive the automatically invite to join the Slack. Cloud you help to send me the invite? Thanks! -- Best Regards Kevin

So, you may want to use mmap() without MAP_SHARED when using DFuse"--disable-caching" option ?? What do you think ? From: <daos@daos.groups.io> on behalf of Bruno Faccini <bruno.faccini@...> Reply

Ok, I can reproduce the behaviour you have reported. Having a look to the related source code, this may come from the fact if caching is disabled, DFuse automatically/silently switches to

Hi Bruno, Thank you very much for checking! I'm using DAOS v2.0.1.One thing I forgot to mention previously is that I mounted the POSIX container with dfuse "--disable-caching" and got an error from

Well, I just tried your test-case on my test-bed and you program just works as expected, no error from mmap() !

Hi, I have a very quick question about the below selection in Posix compliance. From a single DAOS client node, is mmap with MAP_SHARED supported from the client node against a file on a DAOS POSIX

It's also possible to define pool that only use one particular storage class (i.e. a pool of just SCM or a pool on NVME) but as Kevin says, it's up to you to put data in a specific

That's an important differentiating point, Kevin, thank you, and it does make a lot of sense to me. Thank you, David

In my opinion, I would not say that DAOS has tiers. It does support a configuration for small writes landing in PMEM and then a later aggregation service will batch them into the NVME. However, there

Hello Chuck Pool extend might migrate the data to the new pool target, then the original data will be delete asynchronous, so those space might be reclaimed a few mins later if the system is not