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Note: Order must be $5,000 or larger to not pay "overhead". Therefore, buy all parts, especially some small ones, all at oncetogether. (And a single purchase is better than multiple, $5,000+ purchases.)

Decision 1: Storage of users' data

Where should users' data be located?

• Current answer: In Hard drive RAID array in the head node.
• Proposed Choices proposed by ChemIT, to work through with Czarek:
• Proposed by Czarek:

Where should application data be located?

• Current answer:
• Proposed by ChemIT:
• Proposed by Czarek:

• • SFS
  • 2. NAS
  • Dedicated, separate server
  • 1. In head node.

Decision 2: Backups

How should Matrix be backed up?

Answer is DEPENDENT on Decision 1.

• Must include capacity to restore OS, applications and configurations, and users' data.
• Current answer: Cornell CIT's EZ-Backup. See "Scheraga - Cluster backup choices" for data informing this original decision.
• Choices proposed by ChemIT, to work through with Czarek: TBA: Backup may be included in options considered for Decision 1.
  • If required, ChemIT still recommends EZ-Backup.

Decision 3: Head node specifications

Implementation questions:

Decision 4: Who gets "root" access?

Where should applications be installed and configured?

Where Where is "temp" (not backed up) data located?

• Current answer:
• Proposed by ChemIT:
• Proposed by Czarek:

Given: OS on fast, solid state drive (SSD) on head node.

Decision 2: Backups

Where

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• :

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Decisions made

Compute nodes

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