[rrd-users] rrdtool 1.2.30, nfs and mmap

Mike Lindsey mike-rrd at 5dninja.net
Fri Feb 12 04:10:36 CET 2010

# mount -t nfs -o nomand,rw,intr,nfsv3,-w=32768,-r=32768 
netapp1:/vol/prod_cacti_rrds /data/rrdnfs
mount_nfs: -o mand: option not supported

No joy there.  I'm not finding much on Google about FreeBSD, nfs, and 
mandatory locks.  It seems like even if it was an option, shared locks 
would be the default.

I'll talk with our NetApp guy tomorrow, to see if it's a problem on his end.

larryjadams at comcast.net wrote:
> Hey Mike,
> Did you try the "nomand" mount option?
> Regards,
> Larry Adams
> aka TheWitness
> http://www.cacti.net
> ----- Original Message -----
> From: "Mike Lindsey" <mike-rrd at 5dninja.net>
> To: rrd-users at lists.oetiker.ch
> Sent: Thursday, February 11, 2010 7:55:26 PM GMT -05:00 US/Canada Eastern
> Subject: [rrd-users] rrdtool 1.2.30, nfs and mmap
> I'm trying to migrate my cacti rrd store to a netapp, and even with
> rrdtool compiled with --disable-mmap, I'm still getting locking errors.
> Error message is:
> ERROR: could not lock RRD
> OS is FreeBSD 6.3-STABLE
> NFS mount options are:
> rw,intr,nfsv3,-w=32768,-r=32768
> Has anyone solved this problem?  I thought recompiling with
> --mmap-disabled was all I needed to do.

Mike Lindsey

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