Sun ZFS Storage Appliance: rpcmod: WARNING: svc_cots

Asset ID:	1-72-1337712.1
Update Date:	2011-10-17
Keywords:

Solution Type Problem Resolution Sure

Solution 1337712.1 : Sun ZFS Storage Appliance: rpcmod: WARNING: svc_cots_kdup no slots free

Applies to:

Sun ZFS Storage 7120 - Version: Not Applicable and later   [Release: N/A and later ]
Sun ZFS Storage 7320 - Version: Not Applicable and later    [Release: N/A and later]
Sun ZFS Storage 7420 - Version: Not Applicable and later    [Release: N/A and later]
Information in this document applies to any platform.

Symptoms

rpcmod shows svc_cots_kdup no slots free on Sun ZFS Storage System while using direct NFS feature.

debug.sys: Jun 28 11:47:01 system1 rpcmod: [ID 851375 kern.warning] WARNING: svc_cots_kdup no slots free
debug.sys: Jun 30 20:41:11 system1 rpcmod: [ID 851375 kern.warning] WARNING: svc_cots_kdup no slots free

On Solaris, it is easy to avoid this by modifying parameters via entries in the /etc/system file.

/etc/system example entries:

@ set rpcmod:maxdupreqs=8192

set rpcmod:cotsmaxdupreqs=8192

But on the Sun ZFS Storage Appliance, this workaround is not available.

Cause

Check the version you are using - it is possible that you are hitting a known bug.

<SUNBUG:7021240> Need to increase RPC cotsmaxdupreqs to help with impact of 6993541.

This CR has been fixed in 2010.Q3.2.1 or later - available under the Patches & Updates tab

Solution

This CR has been fixed in 2010.Q3.2.1 or later - available under the Patches & Updates tab

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