Re: [lustre-discuss] [EXTERNAL] Re: Restricting sub directory mounts/access

2021-03-30 Thread Mohr, Rick via lustre-discuss
Amit, I don't think that lustre will do exactly what you want in this case. If you mount the entire file system, then you could restrict access to a directory based on normal uid/gid permission or even ACLs. But those restrictions would then apply to every lustre client that mounted the file

Re: [lustre-discuss] Experience with DDN AI400X

2021-03-30 Thread Arman Khalatyan via lustre-discuss
Hi Megan, I have no experience with DDN, but totally agree with Cory on interoperability. in our environment we have mixed lustre 2.9, 2.10, 2.12, depend on HW age. we had some problems with 2.9 - 2.12.x with multihomed clients, but by tweaking lnet configs everything is working w/o problems. We

Re: [lustre-discuss] Restricting sub directory mounts/access

2021-03-30 Thread Kumar, Amit
Hi David, Thank you for your reply. Yes I would like to use the isolation mentioned in the link you shared, but a bit differently. I did a bit of reading but it appears to me, that Isolation provided by filesets feature allows me to mount sub-directory in isolation of the root directory, and us

Re: [lustre-discuss] Experience with DDN AI400X

2021-03-30 Thread Spitz, Cory James via lustre-discuss
Hello, Megan. I was curious why you made this comment: > A general example is a box with lustre-client 2.10.4 is not going to be > completely happy with a new 2.12.x on the lustre network In general, I think that the two LTS release are very interoperable. What incompatibility are you referring

[lustre-discuss] Experience with DDN AI400X

2021-03-30 Thread Ms. Megan Larko via lustre-discuss
Hello! I have no direct experience with the DDN AI400X, but as a vendor DDN has some nice value-add to the Lustre systems they build. Having worked with other DDN Lustre hw in my career, interoperability with other Lustre mounts is usually not an issue unless the current lustre-client software on

[lustre-discuss] Experience with DDN AI400X

2021-03-30 Thread E.S. Rosenberg
Hi everyone, Haven't been on this list for a while :) At my new job we are considering getting a DDN AI400X system which as far as I understood from them is Lustre for some machine learning nodes. I'm just wondering how nice these play with other lustre systems, am I getting myself a vendor lock-in