Greetings!

I have an issue with ZFS/NFS on OmniOS where copying or deleting large files 
causes the SAN to lockup and requires that we reboot it sometimes to recover. 
One customer was trying to copy a 400GB file and another tried to delete a 4TB 
vmdk from a vmware NFS vstore. In both situations the issue is reproducible and 
in both situations I cannot seem to find anything crazy happening on either of 
the boxes.  This doesn’t mean anything though because I’m limited in my 
kstat/dtrace knowledge for troubleshooting this type of behavior on illumos.

If there is an illumOS bug I’m missing or something that jumps out at ya please 
let me know…of if you need more detailed information I can detail both customer 
locations hardware, software, and operating conditions upon request.

The VMware customer is running on r151016 and the other customer is running on 
the latest release.

NFSv3 Only Clients

OS:
ESXi 5.5

All 64bit Linux Clients
CentOS 5,6,&7
Some Older Debian 7 Boxes

I should also note that the VMware customer experiences this same issue on two 
different SAN’s that are very different in hardware configurations.

The one common thread is that they are all Sun Servers. X4170 M2, X4270 M2, 
x4540

This thread is being posted to both the illumos email list and the omnios email 
list as well.

I’m looking, I guess, for a methodology to follow to trace this down and 
determine if it’s a bug or a misconfiguration either on the client or in ZFS or 
in the NFS server.

I can get someone access if so desired.

Have a great day!

John Barfield
Engineering and Stuff

M: +1 (214) 425-0783  O: +1 (214) 506-8354
[email protected]<mailto:[email protected]>

[id:[email protected]]
4925 Greenville Ave, Ste 900
Dallas, TX 75206

For Support Requests:
http://support.bissinc.com<http://support.bissinc.com/> or 
[email protected]<mailto:[email protected]>

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