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Ethernet port aggregation and load balancing with ONTAP

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Network Designs

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Ethernet port aggregation and load balancing with ONTAP

  1. 1. LACP Network Design✔
  2. 2. Link Selection for Next Hop with LACP 1 2 3 4 Full path not established by initiators 1. Send. Server chooses links towards Storage 2. Send. Switch chooses links towards Storage 3. Resp. Storage chooses links towards Server 4. Resp. Switch chooses links towards Server Each Next Step chosen individually Path towards and backwards cold be different
  3. 3. 1x Shared Vol per st node =1x Network Folder. Each host loads each storage node Ensure Separate Links are used Accessible by Host 1 & 2 ✔ Host Perspective
  4. 4. 1x Shared Vol per st node =1x Network Folder. Each host loads each storage node Ensure Separate Links are used Accessible by Host 1 & 2 ✔ Storage Perspective
  5. 5. Not Ideal Network Load distribution. 1x Link used from host to storage node Only 1 link used Accessible by Host 1 & 2 ✗ Host Perspective
  6. 6. Not Ideal Network Load distribution. 1x Link used from storage node to host Only 1 link used Accessible by Host 1 & 2 ✗ Storage Perspective
  7. 7. If there no shared network folders between hosts than more volumes needed Separate Links Used. Though in Real World it doesn’t mean they are Equally loaded No Shared Files between hosts ✔ IP1 IP1 Used Only by Host 2Used Only by Host 1 Storage Perspective
  8. 8. If there no shared network folders between hosts than more volumes needed Separate Links Used. Though in Real World it doesn’t mean they are Equally loaded No Shared Files between hosts ✔ IP1 IP1 Used Only by Host 1 IP2 IP2 Used Only by Host 2 Host Perspective
  9. 9. 1xIP for a storage node & 4x non-Shared Vols: each link used by only 1 host traffic No Shared Files between hosts Just More volumes Does not helps, same as 1 volume ✗ Only traffic between 1 host and 1 storage Only traffic between 1 host and 1 storage Used Only by Host 2Used Only by Host 1 Storage Perspective
  10. 10. 2x IP for a storage node & 4x non-Shared Vols: additional hop No Shared Files between hosts Additional hop, but more even load distribution ✗ Used Only by Host 2 More volumes & IP Used Only by Host 1 Storage Perspective
  11. 11. Network Load distribution. 2x IP & 4x non-Shared Vol on each storage node More volumes & IP – More probability that each link will be fully & equally utilized No Shared Files between hosts Ensure Interconnect Not used ✔ Each network file share accessible through it’s IP IP1 IP2 IP1 IP2 Used Only by Host 2Used Only by Host 1 Storage Perspective
  12. 12. 1x IP for a storage node 2x Shared Vols: each link used by only 1 host traffic Just More volumes Does not helps, same as 1 volume Shared Files between hosts Accessible by Host 1 & 2 ✗ Only traffic between 1 host and 1 storage Only traffic between 1 host and 1 storage Storage Perspective
  13. 13. 2x IP for a storage node & 2x Shared Vol: additional hop Shared Files between hosts Additional hop, but more even load distribution Accessible by Host 1 & 2 Visible to hosts as two Network File Shares ✗ More volumes & IP Storage Perspective
  14. 14. 2x Shared Vols = 2x network folders with 2x IP on each storage node More volumes & IP – More probability that each link will be fully & equally utilized Shared Files between hosts Ensure Interconnect Not used Accessible by Host 1 & 2 Visible to hosts as two Network File Shares Each network file share accessible through it’s IP ✔ IP1 IP2 Storage Perspective
  15. 15. 2x non-Shared Vols = 2x network folders with 2x IP on each storage node More volumes & IP – More probability that each link will be fully & equally utilized No Shared Files between hosts Ensure Interconnect Not used Each network file share accessible through 2x IPs ✔ Used Only by Host 2 IP1& IP2 Used Only by Host 1 Storage Perspective
  16. 16. 2 network folders out of 1x shared Vol with 2x IP on each storage node More volumes & IP – More probability that each link will be fully & equally utilized Shared Files between hosts Ensure Interconnect Not used Visible to hosts as two Network File Shares Accessible by Host 1 & 2 Network file share accessible through 2x IPs ✔ IP1& IP2 Storage Perspective
  17. 17. Each link used by traffic from 1x host: 1x IP & 4x Shared Vols on each storage Just More volumes Does not helps, same as 1 volume Shared Files between hosts Only 1 storage node traffic Only 1 host traffic Visible to hosts as 4 Network File Shares Accessible by Host 1 & 2 ✗ IP1 Storage Perspective
  18. 18. Additional hop: 2x IP & 4x Shared Vols on each storage node Shared Files between hosts Additional hop, but more even load distribution Visible to hosts as 4 Network File Shares Accessible by Host 1 & 2 ✗ More volumes & IP Storage Perspective
  19. 19. Network Load distribution. 2x IP & 4x Shared Vols on each storage node More volumes & IP – More probability that each link will be fully & equally utilized Shared or not Shared Files between hosts Ensure Interconnect Not used Visible to hosts as 4 Network File Shares Accessible by Host 1 & 2 ✔ Half of the network file shares accessible through each IP IP1 IP2 Storage Perspective

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