ScaleIO 3.0

The software defined data center continues to evolve with Storage, compute, and networking.  ScaleIO has become a leading SDS solution and is continuing to improve.  Below will cover some enhancements of ScaleIO 3.0.

Storage Efficiency

  • Space Efficient layout
    • 4k granularity disk layout – optimized for SSD
    • Optimized for SSD and leverage NVDIMM’s
    • Snaps now on equal footing with AFA when it comes to efficiency, management and performance
  • Compression
    • Variable size compression algorithm based on LZ4
    • Optimized for SSD and leverages NVDIMM’s
    • Can be turned on / off at a pool or volume level

Volume Migration

  • Zero application impact
  • Non-disruptive storage-side volume migrations moving volumes between different Storage Pools and Protection Domains
  • Entire VTree can be non-disruptively migrated

Full Support for Dell EMC PowerEdge 14G and NVMe Drives

  • ScaleIO 3.0 takes full advantage of the latest Dell hardware
    • NVDIMMs
    • NVMe
  • ScaleIO Ready Nodes
    • R740XD and R640 Support
    • SSD, NVMe and HDD Options. Hybrid to be released later.

VMware vVols Support

  • Tie VMs more directly to storage Volumes which provides simplified management, less resource contention, and the ability to leverage storage side features like snapshots
  • Requires ESXi 6.0 and newer
  • VASA service runs in a VM
    • Mapping database is stored in a ScaleIO Volume
    • HA is handled by VMware
    • VASA services presents an API to VMware and talks directly to ScaleIO MDM
    • Uses existing ScaleIO SVM Template and adds services to it

Snapshot enhancements

  • Snapshot count increased by 4x
    • 31 to 127 for current medium granular layout
    • Fine granular layout snapshot count is increased 8x – 255 snapshots
  • Volumes can be reverted to any snapshot within the vTree
  • Volumes can be refreshed in place
  • Snapshot can be deleted anywhere in the vTree without affecting other snapshots in the vTree
  • Automated snapshot management
    • Set snapshot creation and retention policy and ScaleIO will automatically manage the snapshots
    • Snapshot management works with CG as well

AMS with OS/FW patching and Storage Only Support

  • AMS handles Storage SW, OS and Firmware
  • VMware support now for 6.5
  • All components upgrade in a rolling manner
    • ScaleIO Software
    • SVM Operating System
    • VMware ESX / RHEL OS
    • Firmware for hardware components

I will be working increasingly with ScaleIO in the future so expect more posts!!

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