[lustre-discuss] Experience with DDN AI400X

[Ms. Megan Larko]

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 the
client boxes is a very different software version or network stack.  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.  As far as vendor
lock-in, DDN support in my past experience does have its own value-add to
their Lustre storage product so it is not completely vanilla.  I have found
the enhancements useful.  As far as your total admin control of the DDN
storage product, that is probably up to the terms of the service agreement
made with purchase.   My one experience with DDN on that is contractually
DDN maintained the box version level and patches, standard Lustre tunables
were fine for local admins.  In one case we did stumble upon a bug, I was
permitted to dig around freely but not to change anything; I shared my
findings with the DDN team.  It worked out well for us.

P.S.  I am not in any way employed or compensated by DDN.    I'm just
sharing my own experience.   Smile.

Cheers,
megan
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