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ā11-10-2017 01:10 PM
ā11-10-2017 01:10 PM
Hello,
I have been testing mounting options for performance in a HP-UX 11.31 on BL870c i2 (10 Gbyte LAN)
NFS B11.31.19.1
Problem is that I try to mount manually for testing
# mount -F nfs -o rw,bg,vers=3,proto=tcp,noac,forcedirectio,hard,nointr,timeo=600,rsize=1048576,wsize=1048576,suid nfsserver01:/nfs/share /testnfs
but when I try to look for mounting options applied, did not take effect
nfsstat -m
Flags: vers=3,proto=tcp,sec=sys,hard,nointr,noac,link,symlink,acl,devs,rsize=32768,wsize=32768,retrans=5,timeo=600
Any help will be appreciated.
Regards,
Solved! Go to Solution.
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ā11-10-2017 01:15 PM
ā11-10-2017 01:15 PM
Re: HP-UX NFS mount options does not take effect
NFS mount options are *negotiated* between the client and server. Just because the client asks for an option does not mean it get it. Both sides need to support the option for it to take effect. In this case the client and server need to be configured to allow 1MB rsize/wsize options to succeed. The steps to enable large I/Os will vary depending on the vendor of the NFS client and server.
[Any personal opinions expressed are mine, and not official statements on behalf of Hewlett Packard Enterprise]
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ā10-24-2018 01:49 PM
ā10-24-2018 01:49 PM
SolutionThanks Dave,
I've found out that these kernel setting were needed to negotiate against the Isilon
# kctune nfs4_bsize=1048576
==> Update the automatic 'backup' configuration first? yes
* The automatic 'backup' configuration has been updated.
* Future operations will update the backup without prompting.
* The requested changes have been applied to the currently
running configuration.
Tunable Value Expression Changes
nfs4_bsize (before) 32768 Default Immed
(now) 1048576 1048576