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Storage review

Join the 3D Workshop in Barcelona with Carmine Cioffi, a Database Administrator and Developer. Gain insights on storage specifications, performance, and future plans. Explore details on disk arrays, SAN setups, RAID configurations, and migration timelines.

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Storage review

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  1. 3D Workshop, Barcelona (ES), 20-21 April 2009 Storage review Carmine Cioffi Database Administrator and Developer

  2. Outline • Storage spec and configuration • Performance • Future plans

  3. Storage spec and configuration • Two disk arrays used by both databases (OGMA, LUGH): • Storage: 2 SAN, 2GBps FC • Single switch SANBOX 5200 2Gb/s • Physical disks available: • Array 1: 16 disks SATA 260GB • Array 2: 6 disks SATA 550GB • Arrays configured with RAID10

  4. Storage spec and configuration OGMA LUGH FC switch SANBOX 5200 2Gb/s Disk array 1 Disk array 2 OGMA (407 GB) OGMA (537GB) LUGH (407GB)

  5. Storage spec and configuration • ASM: • ATLAS: • External redundancy • Single disk group • Two disks: • disk 1 of 407 GB (205 free) • disk 2 of 537 GB (271 free) • LHCb: • External redundancy • Single disk group • One disk 407 GB (337 free)

  6. Performance MB/sec

  7. Performance IO/sec 7

  8. Performance Latency 8

  9. Future Plans OGMA LUGH FC switch 1 SANBOX 5200 2Gb/s FC switch 2 SANBOX 5602 4Gb/s Disk array 1 Disk array 2 mirror ASM mirroring OGMA OGMA LUGH LUGH

  10. Future Plans • Two disk arrays used by all or systems except TAG: • Storage: • 2 SAN, 2GBps FC • ? (third disk array) • two switches: • SANBOX 5200 2Gb/s • SANBOX 5602 4Gb/s • Physical disk available: • Array 1: 16 disks SATA 260GB (backup) • Array 2: 6 disks SATA 550GB ? (storage) • Array 3:? (storage) • Arrays configured with RAID5 or RAID6

  11. Future Plans • ASM: • ATLAS: • Normal redundancy • Single disk group two fail groups • Two or more disks • Mirror disks on different disk array • LHCb: • Normal redundancy • Single disk group two fail groups • Two or more disks • Mirror disks on different disk array

  12. Migration date estimation • ATLAS by mid June • LHCb by the end August

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