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Specifications, costs, and trade-offs for upgrading and expanding the Matrix cluster.
From Scheraga, with Czarek, from 5/27/2014.

The bottom line IN THE FOLOWING BRIEF FORM is

A. Buy new head node
B. Buy new storage machine
C. Buy new computational nodes
C. Arrange an efficient back-up plan

Component

Option 1

Option 2

Comments

A. New head node

Dedicated chassis, 1 U

One of four (a Quad), in one chassis.
(2U)

Consider Option 2 for cost savings (if any).
To do: Calculate cost savings (if any).
Any other considerations, such as risk or recovery challenges?

B. New storage machine

Synology box

Home-brewed storage box, perhaps running OpenNAS software

Cosdier Option 2 for cost savings (if any).
BUT, must also consider risk, support, and staffing effort.

C. New computational nodes

8 nodes, with higher computational processor

16 nodes, with standard computational processor

 

D. Arrange an efficient back-up plan

EZ-Backup

 

Evaluate cost-effectiveness as volume grows. At current TB's of backup, costs are as were predicted (no surprises), and thus were at the time considered to be affordable and cost-effective compared to investing in own hardware and staffing.
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