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Dell HPC NFS Storage Solution High Availability (NSS-HA) Configurations with Dell PowerEdge 12th
Generation Servers
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Firmware and Drivers
10 Gigabit Ethernet driver
ixgbe 3.6.7-NAPI
PERC H710P firmware
21.0.2-0001
PERC H710P driver
megaraid_sas 00.00.05.34-rc1
6Gbps SAS firmware
07.03.05.00
6Gbps SAS driver
mpt2sas 08.101.00.00
NSS4-HA client configuration details Table 9.
Client / HPC Compute Cluster
Clients
64 PowerEdge R410 compute nodes
Red Hat Enterprise Linux 6.1 x86-64
InfiniBand
Mellanox ConnectX-2 QDR HCA
Mellanox OFED 1.5.3-3.0.0
InfiniBand
fabric
All clients connected to a single large port count InfiniBand switch
(Mellanox IS5100).
Both R620 NSS-HA servers also connected to the InfiniBand switch.
Ethernet
Onboard 1 GbE Broadcom 5716 network adapter.
bnx2 driver v2.1.6.
Ethernet
fabric
Two sets of 32 compute nodes connected to two Dell PowerConnect
6248 Gigabit Ethernet switches.
Both Dell PowerConnect 6248 switches have four 10GbE links each
to a 10GbE Dell PowerConnect 8024 switch.
Both R620 NSS-HA servers connected directly to the Dell
PowerConnect 8024 switch.
Flow control was disabled on the Dell PowerConnect 8024 switch
and two Dell PowerConnect 6248 switches.
4.3. HA functionality
The HA functionality of the solution was tested by simulating several component failures. The design of
the tests and the test results are similar to previous versions of the solution since the broad
architecture of the solution has not changed with this release. The section reviews the failures and
fault tolerant mechanisms in NSS-HA solutions, then presents the HA functionality tests with regarding
to different potential failures and faults.
4.3.1. Potential failures and fault tolerant mechanisms in NSS-HA