[CentOS] CentOS 6.4: Warning! Received an indication that the LUN assignments on this target have changed. The Linux SCSI layer does not automatically remap LUN assignments.

2013-10-08 Thread Trevor T Kates (Services - 6)
All:

~ uname -srvmpio
Linux 2.6.32-358.18.1.el6.x86_64 #1 SMP Wed Aug 28 17:19:38 UTC 2013 x86_64 
x86_64 x86_64 GNU/Linux
~ rpm -qa kernel\* | sort
kernel-2.6.32-358.18.1.el6.x86_64
kernel-2.6.32-358.el6.x86_64
kernel-devel-2.6.32-358.18.1.el6.x86_64
kernel-devel-2.6.32-358.el6.x86_64
kernel-firmware-2.6.32-358.18.1.el6.noarch
kernel-headers-2.6.32-358.18.1.el6.x86_64

My department has several dozen servers using CentOS 6.4 connected to a HP 
P2000 G3 FC SAN via a Brocade switch. device-mapper-multipath is used to handle 
the multiple paths to the SAN storage. Our setup has two paths per two 
redundant controllers/switches.

~ rpm -qa device-mapper\* | sort
device-mapper-1.02.77-9.el6.x86_64
device-mapper-event-1.02.77-9.el6.x86_64
device-mapper-event-libs-1.02.77-9.el6.x86_64
device-mapper-libs-1.02.77-9.el6.x86_64
device-mapper-multipath-0.4.9-64.el6_4.2.x86_64
device-mapper-multipath-libs-0.4.9-64.el6_4.2.x86_64
device-mapper-persistent-data-0.1.4-1.el6.x86_64

~ sudo cat /etc/multipath.conf
multipaths {
multipath {
wwid redacted
alias redacted
}
}

defaults {
find_multipaths yes
user_friendly_names yes
}

~ sudo multipath -ll
redacted (redacted) dm-1 HP,P2000G3 FC/iSCSI
size=1.3T features='1 queue_if_no_path' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=130 status=active
| |- 2:0:0:12 sdd 8:48 active ready running
| `- 1:0:0:12 sdb 8:16 active ready running
`-+- policy='round-robin 0' prio=10 status=enabled
  |- 1:0:1:12 sdc 8:32 active ready running
  `- 2:0:1:12 sde 8:64 active ready running

We're having a problem where syslog on every server connected to the SAN is 
getting spammed with the following:

kernel: sd X:0:0:Y [sdX] Warning! Received an indication that the LUN 
assignments on this target have changed. The Linux SCSI layer does not 
automatically remap LUN assignments.

None of the LUN assignments of any of the volumes on the SAN have changed since 
mapping them to the ports connected to each individual server.

So far my searches for a solution have turned up dead-ends and if anyone is 
able to help, I'd greatly appreciate it.

Thanks,

Trevor T. Kates


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[CentOS] OpenLDAP, PAM, GDM Configuration on CentOS 5.5

2010-10-20 Thread Trevor T Kates
Hello:

I am currently establishing a LDAP installation for my department and hope to 
get a little help on some of the finer details of the configuration. OpenLDAP 
2.3.43-12 is currently installed, configured and running on one of my servers 
with a few client installations querying authentication information from it. 
The ppolicy schema has been added to the configuration and a password policy 
has been added to the directory under 
cn=default,ou=Policies,dc=domain,dc=com. Users are able to authenticate 
properly on the client machines to at least login; however, I have been unable 
to achieve the following functions:
- Force user to change password on first login and display a prompt from gdm to 
facilitate the change
- Lock user account from access and display a message from gdm to that fact

These workstations are being used in a restricted mode so that the user may 
only work within X and may not open a terminal.

Any help with this particular problem would be appreciated.

Thanks.


Trevor T. Kates
Associate Software Systems Engineer



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relating thereto which binds the sender without an additional
express written confirmation to that effect.  The information is
intended solely for the individual or entity named above and access
by anyone else is unauthorized.  If you are not the intended
recipient, any disclosure, copying, distribution, or use of the
contents of this information is prohibited and may be unlawful.  If
you have received this electronic transmission in error, please
reply immediately to the sender that you have received the message
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