[Lustre-discuss] Lustre Solution Delivery

[Mostyn Lewis]

On Mon, 28 Apr 2008, Brian J. Murrell wrote:

> On Mon, 2008-04-28 at 17:32 -0600, Sam Bigger wrote:
... snip

> Keep in mind, for RHEL 5 and SLES 10 clients, we support "patchless"
> mode in which you run lustre modules that are built for the kernel that
> comes with the vendor's distribution.  No need to build kernels for
> clients, and in many cases, no need to even build lustre.

***
There must be qualifications here? Are all RHEL 5 and SLES 10 (SPx) up
to being "patchless" level for clients? Is this really set in stone
for all levels of future Lustre, too?

> For servers (OSS and MDS), they should be mostly "sealed server" (i.e.
> no other software should run on it -- reducing the need for kernels
> other than the Sun provided Lustre kernels) installations anyway, so the
> kernels we provide should suffice.

Not if you do not supply RDAC (mpp) kernels, too, e.g. for 6140?

> RHEL5 (and thus CentOS 5) comes with an OFED stack included in the OS.

Old, especially for the linkes of ConnextX/Hermon HCA.

>> But, if
>> the customer requires the latest version of OFED, then you're in for
>> some work.
>
> 1.6.5 will ship with OFED 1.3's kernel-ib RPMs and Lustre all built for
> it.  So, IOW, 1.6 5 will work with OFED I/B compliant hardware "out of
> the box"

You need to supply SRPMS/src too as some people (like Hillsboro HPC benchmark)
need to produce compatible PathScale/INTEL/PGI MPI versions (and maybe gcc
if you don't build that per OS/gcc release level). Also the comments (above) about mpp
(RDAC) apply - you'd need modules built against that.

Regards,
DM