Quick Introduction
Welcome to the JUSUF Cloud system.
It provides a Cloud Platform for Infrastructure as a Service use-cases. Users can create, update, and delete compute, storage, and network resources via ReST APIs on demand. This offer is based on the OpenStack Cloud Middleware, version Train, installed via RedHat OpenStack Platform. Detailed documentation for OpenStack can be found here.
Usage Model
JUSUF Cloud can be accessed via the JUSUF OpenStack Dashboard. or via its REST APIs mentioned here in a programatic approach using http libraries/wrappers (e.g. curl or the python-openstackclient Python libraries).
The APIs can be used to spawn virtual machines (VMs), which are accessible via SSH and run on datacenter resources. Within those virtual machines, users can gain root access and do whatever they need to provide their scientific services.
Virtual Machine Types
A number of different virtual machine configurations, so-called flavors, are available.
Name
RAM
Disk
Ephemeral
VCPUs
Is Public
Hardware
gpp.s
3072
20
0
1
True
gpp.m
8192
20
0
2
True
gpp.l
16384
20
0
4
True
gpp.xl
65536
20
0
16
True
gpp-ssd.l
16384
20
0
4
True
NVMe
gpp-ssd.xl
65536
20
0
16
True
NVMe
gpu.m
8192
20
0
2
True
vGPU
gpu.l
16384
20
0
4
True
vGPU
gpu.xl
65536
20
0
16
True
vGPU
Storage Layers
Virtual machines spawned within the JUSUF Cloud can have access to four different kind of storages.
Type
Livetime
Access
Quantity
Description
Root File system
Ephemeral
blockdevice
10s of GB
Auto-created at VM spawn
NVMe
Ephemeral
PCI-Passthrough
894 GB
Manual mount/cleanup! OpenStack Flavor
Dedicated Volume
Persistent
blockdevice
100s of GB - 10s of TB
Create/delete via OpenStack Cinder
DATA
Persistent
NFS mount
100s of GB - 10s of TB
Manual procedure for access.
The blockdevice for the root file system is placed on JUSTCOM, a external storage system which is part of JUST.
Access to specific parts of the DATA file system from our JUST storage system is a manual processes and is only granted based on case-by-case decisions.
Access to JUSUF Cloud
See here for details on how to gain access to the cloud system.