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Bad performance during large write operations

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Category:
ontap-9
Specialty:
perf
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Applies to

  • ONTAP 9
  • AFF-A20

Issue

  • Low throughput during large write operations such as VM disk moves in Proxmox, MSSQL database backups, and large file copies
  • Throughput for writes is capped at approximately 650–800 MB/s (with NFS v4.2 and nconnect=8), despite a 25Gb network configuration

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