Novell OPEN ENTERPRISE SERVER 2 SP 2 - CLUSTER SERVICES 1.8.7 FOR LINUX, Руководство пользователя

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Troubleshooting Novell Cluster Services 199
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13.10 Problem Authenticating to Remote Servers
during Cluster Configuration
During the Novell Open Enterprise Server (OES) 2 Linux cluster installation and configuration, if
you choose
Remote System on the Novell Cluster Services LDAP Configuration page and you have
LDAP configured to point to a NetWare
®
6.0 or earlier NetWare server, the cluster configuration
fails.
To work around this problem, you must edit the
/etc/openldap/ldap.conf
file. Either disable
certificates (
TLS_REQCERT <level>
line) or change the file that contains the certificates
(
TLS_CACERT <filename>
line). See the
ldap.conf
man page for more information.
13.11 Problem Connecting to an iSCSI Target
If you are connecting to an iSCSI target that already has NSS partitions and pools created on it, you
might not be able to access those NSS partitions and pools until you either reboot the Linux initiator
server or run the
evms_activate
command at the Linux terminal console. This is required for each
Linux initiator server that will access the iSCSI target.
For instructions on configuring an OES 2 Linux server as an iSCSI initiator and connecting to an
iSCSI target, go to
“Mass Storage over IP Networks--iSCSI” (http://www.novell.com/
documentation/sles10/sles_admin/data/cha_inst_system_iscsi.html) in the SUSE Linux Enterprise
Server 10 Administration Guide.
13.12 Problem Deleting a Cluster Resource or
Clustered Pool
If you attempt to delete a cluster resource or clustered pool without first offlining the cluster
resource, deletion errors occur, and the data associated with the clustered pool is not recoverable.
To avoid this problem, offline the cluster resource before attempting to delete either the cluster
resource or the clustered pool.
13.13 Version Issues
Knowing the location and purpose of the files that make up Novell Cluster Services can be useful in
helping you troubleshoot problems and resolve version issues. For information, see
Appendix B,
“Files for Novell Cluster Services,” on page 209 .
13.14 Can’t Find the Prevent Cascading Failover
Option
Novell Cluster Services for NetWare provides a Preventing Cascading Failovers option. Its behavior
was controlled using the
clstrlib /hmo=off
option in
ldncs.ncf
. Is there an equivalent option
for Linux?
Cascading failover prevention was not implemented for Linux because user space applications
(cluster resources) typically cannot cause a kernel failure and cascade failure of other kernels due to
failing over user space code, as compared to ring0 NLMs on NetWare.