[gpfsug-discuss] DSS-G

[Jonathan Buzzard]

Anyone out their with a DSS-G using SR650 servers?

We have one and after some hassle we have finally got the access to the
software downloads and I have been reading through the documentation to
familiarize myself with the upgrade procedure.

Skipping over the shear madness of that which appears to involved doing
a complete netboot reisntall of the nodes for every upgrade, it looks
like we have wrong hardware. It all came in a Lenovo rack with factory
cabling so one assumes it would be correct.

However the "Manufactoring Preload Procedure" document says

    The DSS-G installation scripts assume that IPMI access to the
    servers is set up through the first regular 1GbE Ethernet port
    of the server (marked with a green star in figure 21) in shared
    mode, not through the dedicated IPMI port under the first three
    PCIe slots of the SR650 server’s back, and not on the lower left
    side of the x3650 M5 server’s back.

Except our SR650's have 2x10GbE SFP+ LOM and the XCC is connected to
the dedicated IPMI port. Oh great, reinstalling the OS for an update is
already giving me the screaming heebie jeebies, but now my factory
delivered setup is wrong. So in my book increased chance of the install
procedure writing all over the disks during install and blowing away
the NSD's. Last time I was involved in an net install of RHEL (well
CentOS but makes little difference) onto a GPFS not with attached disks
the installer wrote all over the NSD descriptors and destroyed the file
system.

So before one plays war with Lenovo for shipping an unsupported
configuration I was wondering how other DSS-G's with SR650's have come
from the factory.

JAB.

-- 
Jonathan A. Buzzard                         Tel: +44141-5483420
HPC System Administrator, ARCHIE-WeSt.
University of Strathclyde, John Anderson Building, Glasgow. G4 0NG