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тАО05-07-2009 09:12 AM
тАО05-07-2009 09:12 AM
I am new to HP-UX.
Pls explain the purpose of following options rw,suid,largefiles,nolargefiles,delaylog,detainlog,quota.
Pls include other important options if i missed.
Solved! Go to Solution.
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тАО05-07-2009 09:32 AM
тАО05-07-2009 09:32 AM
Re: why we are using option rw,suid,largefiles,nolargefiles,delaylog,datainlog,quota in vxfs
You refer to /etc/fstab mount options.
largefiles lets you mount files ystems in excess of 2 GB. nolargefiles the default lets you mount smaller file systems.
These two options were dropped from fstab with the release of 11.11 HP-UX 11i v1
rw permits read-write access
suid permits suid super user id to be set. You can set for security reasons that to be not permitted and that stops programs with root access to be created on the filesystem.
quota lets you set user quotas in an effort to keep users from filling the filesystem.
delay and detain log options effect how vxfs maintains journals and impacts performance and ability to recover the file system.
http://docs.hp.com/en/B2355-90682/fstab.4.html
http://www.docs.hp.com/en/5971-4772/apas03.html
SEP
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
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тАО05-07-2009 09:41 AM
тАО05-07-2009 09:41 AM
Re: why we are using option rw,suid,largefiles,nolargefiles,delaylog,datainlog,quota in vxfs
Um, I could *swear* that when I ran my farm of 11.11 systems that I had to enable largefiles on my Oracle partitions. It was either enabling largefiles, or having a parade of Cranky Grumpy DBAs at my desk...
HP-Server-Literate since 1979
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тАО05-07-2009 10:01 AM
тАО05-07-2009 10:01 AM
Re: why we are using option rw,suid,largefiles,nolargefiles,delaylog,datainlog,quota in vxfs
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тАО05-07-2009 10:03 AM
тАО05-07-2009 10:03 AM
Re: why we are using option rw,suid,largefiles,nolargefiles,delaylog,datainlog,quota in vxfs
largefiles was dropped as an fstab option in 11.11
Try putting it in there and mounting it won't work.
-o largefiles is handled by the newfs command.
largefiles is an option, its just not handled in fstab anymore.
SEP
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
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тАО05-07-2009 10:08 AM
тАО05-07-2009 10:08 AM
Re: why we are using option rw,suid,largefiles,nolargefiles,delaylog,datainlog,quota in vxfs
>>excess of 2 GB. nolargefiles the default
>>lets you mount smaller file systems.
No, not even close!
The largefiles and nolargefiles have absolutely NOTHING to do with the file system size!
What they enable is the ability to have a FILE larger than 2GB in the file system.
You could create a 500GB file system and mount it with the nolargefiles option. You just would not be able to have files larger than 2GB in that file system.
For a detailed explanation of the mount options, check the mount_vxfs man page.
# man mount_vxfs
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тАО05-08-2009 05:03 AM
тАО05-08-2009 05:03 AM
Re: why we are using option rw,suid,largefiles,nolargefiles,delaylog,datainlog,quota in vxfs
Still i am not able to understand suid, delaylog, datainlog.
so pls explain this in detail.
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тАО05-08-2009 05:10 AM
тАО05-08-2009 05:10 AM
Re: why we are using option rw,suid,largefiles,nolargefiles,delaylog,datainlog,quota in vxfs
If you have **specific** questions about the options after reading, then ask those.
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тАО05-08-2009 05:23 AM
тАО05-08-2009 05:23 AM
Re: why we are using option rw,suid,largefiles,nolargefiles,delaylog,datainlog,quota in vxfs
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тАО05-08-2009 06:21 AM
тАО05-08-2009 06:21 AM