Slow VMware vMotions on NFS due to default NFS TCP transfer size
Applies to
ONTAP 9
VMware
Issue
- Slow vMotions when migrating from one datastore to another, or possibly from one storage system to another
- Writes may be slower than reads
- Example: Reads may maximize a 10GbE link (1.2 GB/s), but writes don't go faster than 300 or 400 MB/s