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EMC Centralized Storage March 14, 2003. John Scott. Storage Requirements. Highly Available Reduce downtime due to hardware problems EMC has redundant parts, mirrored disks and phone home system EMC support staff will arrive within 4 hours of a hardware failure to fix the problem

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EMC Centralized Storage March 14, 2003


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emc centralized storage march 14 2003

EMC Centralized StorageMarch 14, 2003

John Scott

Implementation Review

storage requirements
Storage Requirements
  • Highly Available
    • Reduce downtime due to hardware problems
  • EMC has redundant parts, mirrored disks and phone home system
  • EMC support staff will arrive within 4 hours of a hardware failure to fix the problem
  • Easily Manageable
    • Needs less management than current mix of multi-vendor arrays
  • One GUI controls the entire EMC system
  • Scalable without needing more infrastructure changes
  • 2 GB Switch has 64 ports, about half used so far
  • Disks can be upgraded as larger ones are put on market

Implementation Review

integrating with sunfire 15k
Integrating with SunFire 15K
  • Sun and EMC together very common in marketplace
  • Each domain on the SunFire will have separate connections to different EMC partitions as needed

Implementation Review

space allocation
Space Allocation
  • EMC will have enough space for:
    • All POD files for OTFR and other highly requested data
    • Processing data through OPUS, DADS and OTFR
      • Operations, Development and Testing
    • All Databases for the Archive and Data Processing
      • Operations, Development and Testing
    • Catalogs and Surveys Data (CASB)
    • GALEX mission data

Implementation Review

space allocation1

Client

0-18 Months

18-42 Months

Total Allocation (TB)

Archive Operations – Archive Cache

2

6

8

Archive Operations – Verification Store

1

0

1

Archive Operations – Distribution Staging

1

0

1

Data Processing – OTFR, OPUS, Reference disk

2

3

5

ESS – Development and testing

4.6

0.4

5

GALEX Mission Archive

5

0

5

CASB – Object Catalogs

2.5

2.5

5

Development Database

0.5

1.5

2

Totals

16

16

32

Space Allocation

Implementation Review

space allocation2
Space Allocation
  • Putting together a policy to address allocation
    • Will monitor space already allocated
    • Will address new requests for storage
    • Will (re)allocate based on needs

Implementation Review

system capabilities
System Capabilities
  • 32 TB, total usable space – fully mirrored
    • Mirroring allows us to lose a drive and not lose any data or incur downtime
  • Business continuance volumes allow for backups and upgrades with zero downtime
  • PowerPath software balances load across redundant connections
  • Integrated EMC DLT Tape

backup system (EDM) provides data

security

Implementation Review

still writing data to magneto optical media
Still writing data to Magneto Optical Media
  • Disk drives and tapes are not acceptable archive media.
  • Catastrophic crash or building disaster would result in loss of Mission data if only writing to EMC
  • Writing data to MO and storing MO platters in another location provides data security.

Implementation Review

data depot
Data Depot
  • Most Archive data will be written to a portion of the EMC called the “Data Depot”
    • Provides fast access for users (including OTFR) to the data
    • No longer need to wait for jukebox hardware to mount the platter, faster read/write rates
  • Software changes coming soon to implement the Data Depot concept
    • Data will be written to Depot on Ingest
    • Data will be retrieved from Depot if available
    • More on that in the Presentation: Moving Archive Data to the EMC Storage Array

Implementation Review

implementation status
Implementation Status
  • DADS VMS systems connected and operations is using EMC space for distribution and ingest
    • Throughput performance is meeting expectations
  • All DADS and OTFR Test and Development systems connected to EMC, currently testing
  • Loaner server hooked up and undergoing database testing using EMC space.
  • EMC DLT tape backup system (EDM) slow to configure, but working acceptably. Tests are ongoing. Backups being done reliably from test systems
    • Backups much faster

Implementation Review

training progress
Training Progress
  • “Knowledge Transfer” from EMC technical staff as they worked with us configuring system
    • They configured initial systems, we did later systems ourselves
  • Many web-based classes taken by staff
  • Two staff members sent to EMC for classroom training
  • Will develop operational procedures for CPT staff
  • More classes scheduled

Implementation Review

remaining tasks
Remaining Tasks
  • Complete DADS/OTFR/OPUS testing on EMC storage
  • Complete backup and recovery testing/training
  • Test database applications
    • Decide on best strategy for BCV and backup systems
    • Test TimeFinder other specialized database applications
    • More on that in the Presentation: Databases

Implementation Review

remaining tasks con t
Remaining Tasks (con’t)
  • Connect CASB systems
    • Develop efficient path to migrate their data
  • Turn in excess equipment
    • 6 large Cygnet jukeboxes
    • Misc hardware
    • Compaq StorageWorks arrays (to be kept around until the Tru64 machines are retired)

Implementation Review

schedule
Schedule

Implementation Review