1 / 19

Storage Networking

A quick introduction to SANs and Panasas ActivStor. Storage Networking. Kevin Haines, eScience Centre, STFC, RAL. WikiPedia defines a SAN:.

melchior
Download Presentation

Storage Networking

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. A quick introduction to SANs and Panasas ActivStor Storage Networking Kevin Haines, eScience Centre, STFC, RAL

  2. WikiPedia defines a SAN: A storage area network (SAN) is an architecture to attach remote computer storage devices (such as disk arrays, tape libraries, and optical jukeboxes) to servers in such a way that the devices appear as locally attached to the operating system.

  3. SAN Topology It’s like a LAN... Host/HBA 1 Storage 1 Host/HBA 2 Storage 2 Host/HBA 3 SAN Switch

  4. SAN Topology It’s like a LAN... it has a switch... Host/HBA 1 Storage 1 Host/HBA 2 Storage 2 Host/HBA 3 SAN Switch

  5. SAN Topology It’s like a LAN... it has a switch, and network cards. Host/HBA 1 Storage 1 Host/HBA 2 Storage 2 Host/HBA 3 SAN Switch

  6. SAN Topology It’s like a LAN... it has a switch, and network cards. Host/HBA 1 Storage 1 Host/HBA 2 Storage 2 Host/HBA 3 SAN Switch

  7. SAN Topology It’s like a LAN...but a little different. Fibre Connectors 2/4/8Gb/s Host/HBA 1 Storage 1 Host/HBA 2 Storage 2 Host/HBA 3 SAN Switch Initiators Targets WWNs

  8. Controlling Access Zoning implemented by the switch Host/HBA 1 Storage 1 Host/HBA 2 Storage 2 Host/HBA 3 SAN Switch Zone 1 = HBA1 + Storage1 Zone 2 = HBA2 + HBA3 + Storage 2

  9. Controlling Access LUN masking on the storage array Host/HBA 1 Storage 1 Host/HBA 2 LD1 HBA2 LD2 Host/HBA 3 HBA2 LD3 HBA3 SAN Switch Zone 1 = HBA1 + Storage1 Zone 2 = HBA2 + HBA3 + Storage 2

  10. Controlling Access LUN masking on the storage array Host/HBA 1 Storage 1 Host/HBA 2 LD1 HBA2 LD2 Host/HBA 3 HBA2 LD3 HBA3 SAN Switch Zone 1 = HBA1 + Storage1 Zone 2 = HBA2 + HBA3 + Storage 2

  11. Increasing Resilience Multipath HOST HBA 1 SAN Switch 1 Storage 1 HBA 2 SAN Switch 2

  12. Questions about SANs?

  13. PanasasActivStor

  14. PanasasActivStor

  15. PanasasActivStor • Director Blades • Meta-data and volume management services • NFS access gateway

  16. PanasasActivStor • Storage Blades • Two disks (up to 2TB per blade) • 2xGb/s ethernet (failover mode) • 11 per shelf (must be managed by DB)

  17. PanasasActivStor Resilience • Data is striped across all Storage Blades (RAID5 or RAID1) • One or more Storage Blades’ worth of space reserved for failures • System monitoring for pre-emptive actions (Blade Drain) • Two or more Director Blades can provide failover for each other

  18. PanasasActivStor Performance • DirectFLOW clients • Available for most major Linux distributions • Directly communicates with Storage Blades • RAID computations performed by client • ~5000 supported (12000 option)

  19. PanasasActivStor Performance • DirectFLOW clients • Available for most major Linux distributions • Directly communicates with Storage Blades • RAID computations performed by client • ~5000 supported (12000 option) • Results show scalable claim is true • RAL: 1.2 GB/s from 22 nodes (2 shelves) • RoadRunner: 60GB/s (103 shelves)

More Related