Settup
FAS 2552 with additional shelf Running ONTAP 9.1P2 (24x2 disk 10k SAS)
2 Heads 1 10G per head
FAS 2552 <> 16port 10G NetApp switch <> 10G Trunk <> CISCO 3850X SW (48p 1G 2x10G) <> several servers at 1G
Servers are 2012r2, clients Windows 10 (all 1G connections from the same switch hosting the 10G trunk to NetApp sw)
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I'm fairly new to CDOT and have limited experiance with network storage.
My issue is that the CIFS share on this device are caping out at about 1G throughput. IE Server1 starts a file copy from the share at full Gig speeds, Server2 begins copying from it and the transfer rate drops to half a Gig for each. I can copy from multiple NetApps at full 1G each but am unable to get any NetApp share to exceed 1G througput.
To isolate this to a CIFS issue I had three servers and the FAS conect with ISCSI. After creating three LUNS and connecting them to three physicaly seperate servers on the same switch, I observed 3 seperate full 1Gig connections simultainous.
The network should be capable of pushing around 10 1G connections through that trunk port as it did for the ISCSI connection, not sure what to look at next.
This is our current "vserver cifs options show" with advanced priv set.
Vserver: svm1
Client Session Timeout: 900
Copy Offload Enabled: true
Default Unix Group: -
Default Unix User: pcuser
Guest Unix User: -
Are Administrators mapped to 'root': true
Is Advanced Sparse File Support Enabled: true
Direct-Copy Copy Offload Enabled: true
Export Policies Enabled: false
Grant Unix Group Permissions to Others: false
Is Advertise DFS Enabled: false
Is Client Duplicate Session Detection Enabled: true
Is Client Version Reporting Enabled: true
Is DAC Enabled: false
Is Fake Open Support Enabled: true
Is Hide Dot Files Enabled: false
Is Large MTU Enabled: true
Is Local Auth Enabled: true
Is Local Users and Groups Enabled: true
Is NetBIOS over TCP (port 139) Enabled: true
Is NBNS over UDP (port 137) Enabled: false
Is Referral Enabled: false
Is Search Short Names Support Enabled: false
Is Trusted Domain Enumeration And Search Enabled: true
Is UNIX Extensions Enabled: false
Is Use Junction as Reparse Point Enabled: true
Max Multiplex Count: 255
Max Same User Session Per Connection: 2050
Max Same Tree Connect Per Session: 4096
Max Opens Same File Per Tree: 800
Max Watches Set Per Tree: 100
Is Path Component Cache Enabled: true
NT ACLs on UNIX Security Style Volumes Enabled: true
Read Grants Exec: disabled
Read Only Delete: disabled
Reported File System Sector Size: 4096
Restrict Anonymous: no-restriction
Shadowcopy Dir Depth: 5
Shadowcopy Enabled: true
SMB1 Enabled: true
Max Buffer Size for SMB1 Message: 65535
SMB2 Enabled: true
SMB3 Enabled: true
SMB3.1 Enabled: true
Map Null User to Windows User or Group: -
WINS Servers: -
Report Widelink as Reparse Point Versions: SMB1
