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Status Planned for future release
Created by Guest
Created on May 23, 2019

Spectrum Virtualize "IO pause" on node leave and join is entirely too long

When a node leaves or joins a Spectrum Virtualize cluster (SVC, V7K, FS9100, etc), the cluster imposes an "IO pause" on the order of 10 or more seconds. This is unacceptably long, especially in a flash environment.

Idea priority Urgent
  • Guest
    Reply
    |
    Sep 4, 2019

    Due to processing by IBM, this request was reassigned to have the following updated attributes:
    Brand - Servers and Systems Software
    Product family - Storage
    Product - IBM System Storage SAN Volume Controller (SVC) / Spectrum Virtualize
    Component - Product functionality
    Operating system - Other
    Source - Storage Technical Client Council

    For recording keeping, the previous attributes were:
    Brand - Servers and Systems Software
    Product family - Storage
    Product - Storage TCC - Private Requests
    Component - Other
    Operating system - Other
    Source - Storage Technical Client Council

0 MERGED

Quicker failover times

Merged
SVC needs to be quicker to resolve situations where a redundate component has a problem, so that servers and applications are not impacted (no timeouts in servers or applications which can lead to unpredictable results)
almost 11 years ago in IBM Spectrum Virtualize / FlashSystem 3 Planned for future release
0 MERGED

Decrease IO Pending Time

Merged
Customer ae using SVC to virtualize AFA and serve to online transaction based applications. When controller fail or controller rejoin,system will pending I/O over 30s.If the system topology is hyperswap, pending I/O will close to 60s.Customer hope...
about 5 years ago in IBM Spectrum Virtualize / FlashSystem 1 Planned for future release