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General Lab Info (Mainly for Devs)


Lab Infrastructure Services

Misc Admin Tasks
These are infrequently completed tasks that don't fit under any specific service

Production Services

RHEV = Sepia RHE instance
Baremetal = Host in Sepia lab

The Attic/Legacy Info




Intel no-model prototypes. Used primarily by Mark Nelson for Performance testing.

incerta{02,03,04,08} are connected to /home/jenkins-build is mounted on an NVMe drive for incerta{02..04} using

Hardware Specs

Count Manufacturer Model Capacity Notes
Chassis N/A Intel S2600WT2 N/A 2U
Mainboard N/A Intel S2600WT2 N/A Version H21573-360
CPU 2x Intel Xeon(R) CPU E5-2650 v3 @ 2.30GHz N/A ARK
RAM 8 DIMMs Micron 18ASF1G72PDZ-2G1A1 8GB 64GB total per system
HDD 8 Seagate ST91000640NS 1TB
NVMe 4 Intel ? 745.2GB
NIC 2 ports Intel I350 1Gb On-board
NIC 2 ports Intel XL710 40Gbps Cabled to

Donated Peripherals

ZNS Samples

Western Digital donated two of these in early 2020 for us to play with. They are installed in incerta05 at /dev/nvme0n1 and /dev/nvme1n1. I purchased some PCIe to U.2 adapters since we didn't have any systems that could accept U.2 drives natively.

Racking ticket for those is

ZNS Samples Round 2

WDC sent two more in March 2021. Replaced old ones with these. Model WZS4C8T2TDSP303.

Racking ticket:

I think maybe the old samples were crippled. WD claims they were M.2 form factor but I bought U.2 PCIe adapters.

Configuring the 40Gb NICs

The 40Gbps Infiniband switch the incerta are connected to does not have a DHCP server built in so the servers have to be configured manually. I wrote an ansible playbook to quickly take care of this on CentOS machines and Ubuntu machines that are not using netplan.


cd $(mktemp -d) # optional
git clone
git clone
cd ceph-cm-ansible

# Change the ansible_ssh_user below as needed
ansible-playbook -e '{"ansible_ssh_user": "nhm"}' -i ../ceph-sepia-secrets/ansible/inventory tools/incerta-nic.yml --limit incerta02*
hardware/incerta.txt · Last modified: 2022/07/27 17:18 by djgalloway