How are you copying the vm? Winscp? RAID-DP is native to netapp and protects from double disk failure You should always use RAID-DP, your data is worth more than saving one or two disks from configuring a less resilient raid type. You may want to check network cables and switch saturation or firewall port blocking. Hope this helps.
Just a little follow up about issues that have now been pinpointed:
- Our aggregate had filled up to 97%. We didn't know this was against best practise. Now cleaned up some space and are back at 85%. Wasting about 1 TB 😞
- Turned out a number of volumes were fragmented. After running reallocate measure, two volumes reported an optimization of 6 and four volumes reported an optimization of 4. I've now scheduled optimizations to take place each saturday night. Two two oracle volumes are now back at optimization 1 and 2.
We are seeing slight improvements. Last step I'm going to take now is aligning all VMs that are on the NetApp.
Unfortunately we're running ESXi, so the NetApp mbralign tool won't work 😞 Looking for a solution to this.
NetApp offers RAID_DP or RAID4. And Ontap till date does not offer different raid for different RAID groups under the same aggregate. So if u have different container for ur transaction logs, u may have RAID4 but that would be risky!!