<html> <head> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"> <meta name=Generator content="Microsoft Word 10 (filtered)"> <style>  </style> </head> <body lang=EN-US link=blue vlink=purple> <div class=Section1> <p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size: 10.0pt;font-family:Arial;color:navy'>Hi Kumaresh</span></font></p> <p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size: 10.0pt;font-family:Arial;color:navy'>Thanks for the reply/inputs</span></font></p> <p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size: 10.0pt;font-family:Arial;color:navy'>SAN LUN’s are not defined in /etc/fstab. They don’t have to be mounted while OS boots. SAN volumes are the part of Cluster resources groups, they are in control of Cluster services rgmanager.</span></font></p> <p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size: 10.0pt;font-family:Arial;color:navy'> </span></font></p> <p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size: 10.0pt;font-family:Arial;color:navy'>I did not understand how we can make it work, please suggest how we can go ahead.</span></font></p> <p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size: 10.0pt;font-family:Arial;color:navy'> </span></font></p> <p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size: 10.0pt;font-family:Arial;color:navy'>Regards</span></font></p> <p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size: 10.0pt;font-family:Arial;color:navy'>Deval</span></font></p> <p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size: 10.0pt;font-family:Arial;color:navy'> </span></font></p> <p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size: 10.0pt;font-family:Arial;color:navy'> </span></font></p> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>-----Original Message-----<br> <b><span style='font-weight:bold'>From:</span></b> Kumaresh Ponnuswamy [mailto:kumaresh81@yahoo.co.in] <br> <b><span style='font-weight:bold'>Sent:</span></b> Wednesday, April 12, 2006 3:34 PM<br> <b><span style='font-weight:bold'>To:</span></b> Deval kulshrestha; linux clustering<br> <b><span style='font-weight:bold'>Subject:</span></b> Re: [Linux-cluster] RE: how to dis-allow manual mounting of cluster file system resources?</span></font></p> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>Hi,</span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>In your case, I guess removing the SUID on mount for normal users is the best solution.</span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>This is will prevent non root members from mounting the file systesm.</span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>Regards,</span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>Kumaresh<br> <br> <b><i><span style='font-weight:bold;font-style:italic'>Deval kulshrestha <deval.kulshrestha@progression.com></span></i></b> wrote:</span></font></p> </div> <blockquote style='border:none;border-left:solid #1010FF 1.5pt;padding:0in 0in 0in 4.0pt; margin-left:3.75pt;margin-top:5.0pt;margin-bottom:5.0pt'> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Hi</span></font></p> </div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>I am using one MSA 500 G2 , two no. of HP DL360 G4P server with HP’s HBA 642, Server installed with RHEL 4 ES U1 and RHCS4 with lock mgr as DLM</span></font></p> </div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>I have to run around 14 different services in HA mode, I have break them up in two different priority domain. </span></font></p> </div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Now 7 services runs on node1 in HA mode, node2 is failover host for them, </span></font></p> </div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Remaining 7 services runs on node2 in HA mode and node1 is failover domain for them.</span></font></p> </div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>In my scenario Simultaneous logical drive access is not required, thus I am not using GFS here</span></font></p> </div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>What ever is needed is configured properly and working fine.</span></font></p> </div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>But this cluster is still causes some data inconsistency error if somebody manually mounts the partitions which is already in access by other node.</span></font></p> </div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>I understand that this is against the basics of non-shared file system. This can be documented also, but everybody knows that after 2-3 yrs down the line when support staff replaced by new people, when they come in with very limited understanding about the running stuff they can do some mount mistake.(umount is a document screw up, but mount is here undocumented screw up) every body knows mount is just a simple command, it does not harm anything, if I just want to read data mount is ok. But in our case we wanted to restrict other users to use mount command when some logical volume is already mounted on one node.</span></font></p> </div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>I want some help on this, when shared file system is not implemented. How we can restrict manual mount of cluster file system resources when its being in use by some cluster services?</span></font></p> </div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Any help would be highly appreciable here.</span></font></p> </div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>With regard</span></font></p> </div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Deval K.</span></font></p> </div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> <div> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> <div style='margin-left:.5in'> <p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p> </div> <pre style='margin-left:.5in'><font size=2 face="Courier New"><span style='font-size:10.0pt'>=========================================================== Privileged or confidential information may be contained in this message. 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