...
- New servers: fermi-gpfs01 and fermi-gpfs02
- Dual-connect storage between these two machines
- Internet connectivity (2 x 10 Gbps per host?)
- Install GPFS
- Install xrootd
- Balance data across xroot cluster
- New NFS/GPFS service on former fermi-xrd01 and fermi-xrd02 (and wainXXX, wainYYY)
- fermi-xrd01 and fermi-xrd02
- Drain xroot data (~180 TB)
- Swap 2x R610 with SCS-owned R720 machines
- Rename (fermi-gpfs03 and fermi-gpfs04?)
- Internet connectivity (1 x 10 Gbps per host?)
- Decide upon storage configuration
- Number of spindles for Users/Groups (from wain025)
- Number of spindles for production partitions (from wain026 and wain032)
- Number of "spare" spindles for future expansion
- Install GPFS (total capacity will be ~160 TB)
- Migrate wain025, wain026, wain032 to new system
- Select two wains for CNFS service (lots of memory + fast ethernet)
- Drain xroot data from wainXXX and YYY (~64 TB)
- Rename hosts (fermi-cnfs01, fermi-cnfs02?)
- Install GPFS and CNFS software
- Configure so that wain025 partitions are handled in such a way that their activities do not negatively impact access to other partitions
- Upgrad NFS service for LSST
- Repurpose wain025 (??) wainZZZ to replace wain006
- Drain xroot from other wains that are to be retired
- Retirement list:
Milestone Timeline
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201 | storage arrays arrive |
9/18/2014 |
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| cables located, beginning of GPFS testing at SCS |
1/13/2015 |
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| xroot in production (readonly), and data migration/balancing begins |
2/18/2015 | agree upon general Fermi storage plan |
?? | fermi-xrd01/02 drained |
?? | former fermi-xrd01/02 + wainXXX/YYY configured for CNFS service |
?? | NFS data migrated to new service and ready for production |
?? | wain006 migrated to wainZZZ |
?? | all remaining retirees drained |
Ref: NFS and Xroot Disk Allocations