RSS Services Rate Information

How it works:

There are two tiers of access available on Hellbender/RDE. What is available to all UM system research faculty/staff at no cost (General) and what is available beyond that (Investor).

- Free access (General) tier compute:

• Hellbender general account that gives access to run jobs on our 'General' queue as well as the 'Requeue' queue.

• When running on the 'General' partition - users jobs are queued according to their fairshare score. The maximum running time is 2 days.

• When running on the 'Requeue' partition - users jobs are subject to pre-emption if those jobs happen to land on an investor owned node. The maximum running time is 2 days.

• To get started please fill out our Hellbender/RDE Account Request Form

- Paid access (Investor) tier compute:

• Hellbender investor account that has first right to run on the node or set of nodes that they have leased.

• Can submit to any queue (however when using 'General' investors will still be subject to fairshare for scheduling priority on these 'General' resources). Max running time on their node(s) is 28 days.

• To invest please submit the following order form: RSS Services Order Form

- Free access (General) tier storage:

• All accounts are given 50GB of storage in /home/$USER as well as 500GB in /home/$USER/data at no cost.

• MU PI's are eligible for 1 free 5TB group storage in our RDE environment

• To get started please fill our our general RSS Account Request Form

- Paid access (Investor) tier storage:

• RSS offers storage to purchase if you have needs beyond 5TB. We have two tiers of storage available:

• High Performance Storage - All flash disc - good for high I/O HPC workloads. Priced at $95/TB/Year.

• General Performance Storage - Mixed flash/spinning disc environment. Ideal for larger dataset storage/longer term storage. Priced at $25/TB/Year.

• To get started please fill out our RSS Services Order Form

CPU Node Lease

CPU Nodes

Investments in CPU nodes are per node per year - however if you have funds available that you would like to pay for multiple years up front we can accommodate that. Once Hellbender has hit 50% of the total nodes in the cluster being investor-owned we will restrict additional leases until more nodes become available via either purchase or surrendered by other PI's. The CPU nodes available for investment comprise of the following:

The 2025 pricing is: $2,702 per node per year.

GPU Node Lease

GPU Nodes

The investment structure for GPU nodes is the same as CPU - per node per year. f you have funds available that you would like to pay for multiple years up front we can accommodate that. Once Hellbender has hit 50% of the total GPU nodes in the cluster being investor-owned we will restrict additional leases until more nodes become available via either purchase or surrendered by other PI's. The GPU nodes available for investment comprise of the following:

The 2025 pricing is: $7,692 per node per year.

Storage: Research Data Ecosystem ('RDE')

Research Storage

The Research Data Ecosystem ('RDE') is comprised of 8.5PB connected high-performance storage. This is split between two vendors (VAST and Pixstor) with NFS/GPFS mounts to client servers or the Hellbender cluster.

• Storage lab allocations are protected by associated security groups applied to the share, with group member access administered by the assigned PI or appointed representative.

What is the Difference between High Performance and General Performance Storage?

On Pixstor, which is used for standard HPC allocations, general storage is pinned to the SAS disk pool while high performance allocations are pinned to all flash NVME pool. Meaning writes and recent reads will have lower latency with High performance allocations.

On VAST, which is used for non HPC and mixed HPC / SMB workloads, the disks are all flash but general storage allocations have a QOS policy attached that limits IOPS to prevent the share from the possibility of saturating the disk pool to the point where high-performance allocations are impacted. High Performance allocations may also have a QOS policy that allows for much higher IO and IOPS. RSS reserves the right to move general store allocations to lower tier storage in the future if facing capacity constraints.

Use Cases for General Storage

• Workloads that may require intensive computing but do not require sustained read and write IO with speeds in the multiple GB/s

• Workloads that utilize SMB shares ON VAST

• Workloads that require single server NFS mounts (VAST)

Use Cases for High Performance Storage

• Workloads that require sustained use of low latency read and write IO of multiple GB/s, generally generated from jobs utilizing multiple HPC nodes

• Workloads that require sustained use of low latency read and write IO with multiple GB/s, generally generated from jobs utilizing multiple NFS mounts

Snapshots

• VAST default policy retains 7 daily and 4 weekly snapshots for each share

• Pixstor default policy is 10 daily snapshots

None of the cluster attached storage available to users is backed up in any way by us, this means that if you delete something and don't have a copy somewhere else, it is gone. Please note the data stored on cluster attached storage is limited to Data Class 1 and 2 as defined by UM System DCL. If you have need to store things in DCL3 or DCL4 please contact us so we may find a solution for you.

The 2025 pricing is: General Storage: $25/TB/Year, High Performance Storage: $95/TB/Year

We need a MoCode to charge for all services.

We add in new node investments during our monthly maintenance windows. RDE storage can be grown or reduced on demand and we try to turn those requests around within 2 business days typically.

For a compute node please fill out this form: RSS HPC Node

For a GPU node please fill out this form: RSS GPU Node

For more RDE storage please fill out this form: RSS RDE Storage Addition

For tape archive please fill out this form: RSS Tape Archive