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тАО02-12-2008 09:02 PM
тАО02-12-2008 09:02 PM
I have two HP-UX machine (whatever it could be), e.g server s1 and s2 and mount point is d1.
my requirement is, if I want d1 to declare in s1 server as full permission to access and mount s2 as readonly permission. Is it possible?
N.B. please do not reply likely NFS or Cluster thought. I do want to apply any procedure apart from this. I have EMC clariion box as my storage box.
Solved! Go to Solution.
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тАО02-12-2008 10:07 PM
тАО02-12-2008 10:07 PM
Re: Mount point shared between two different HP-UX box - any thought
BR,
Kapil
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тАО02-12-2008 10:11 PM
тАО02-12-2008 10:11 PM
Re: Mount point shared between two different HP-UX box - any thought
But I need exact docs or procedure for this.
I mean step by step procedure
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тАО02-12-2008 11:06 PM
тАО02-12-2008 11:06 PM
SolutionHowever, if you use LVM and have your filesystems in logical volumes, and server s1 is the server that has the volumegroup and filesystem mounted in read/write, you can execute "vgchange -a r" on server s2 to activate the volumegroup in read-only mode, and then "mount -o ro" to mount the filesystem readonly.
The problem with this procedure is that server s2 will cache the contents of filesystem d1, and thus updates made by server s1 will not be seen by server s2 unless you can find a way to clear (or disable) that cache and force server s2 to read the disk-contents. That again however will seriously degrade filesystem performance.
Since this is unsupported, you will not find any good documentation or procedure. You will have to find yourself the correct mount options.
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тАО02-13-2008 12:52 AM
тАО02-13-2008 12:52 AM
Re: Mount point shared between two different HP-UX box - any thought
With HP-UX you have two choices.
NFS is the simple one. man /etc/exports will show you how to do hostname based limitation on exports.
CIFS/9000 Samba is a better choice because it offers potential windows integration and access list.
Example:
[winora]
comment = Windows Oracle Install point
path = /home/software/softlib/ORACLE/WINDOWS
writable = no
browseable = yes
read only = yes
comment = Blah blah project directory
path = /users/blahblah
public = no
writeable = yes
printable = no
browseable = yes
write list = @blahblah
create mode = 0770
case sensitive=no
Take note of the write list. This relies on group permissions to limit who can write and who can not.
Shmuel
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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тАО12-27-2008 08:37 PM
тАО12-27-2008 08:37 PM