Hitachi Dynamic Link Manager, User Manual, Page: 135 / 746

3. Creating an HDLM Environment
111
# /opt/DynamicLinkManager/bin/dlnkmgr view -sys
Always use Heartbeat (1.2.5-0.3) in order to create a cluster configuration. Note that
environments that combine Heartbeat and LVM are not supported.
(2) Volume Managers Supported by HDLM
Use LVM2.01.14-3.23 as a volume manager.
Notes on using a volume manager
Note the following when using a volume manager:
• Although disk partitioning and system backup functions are supported for disks
in a YaST2 system, the combination of YaST2 and LVM is not supported.
• When you execute an LVM-related command such as
pvscan
or
vgscan
, a
CD-ROM IOCTL command might be sent to each device in the OS. The IOCTL
is available only for SCSI devices. You do not need to enter information for the
IOCTL when installing HDLM because HDLM devices are not SCSI devices.
HDLM rejects the IOCTL request and assumes that the IOCTL processing has
failed. The error message (KAPL05023-E) is output to the syslog, but HDLM
operations are not affected.
This message is also output in the following cases, but HDLM operations are not
affected:
• You execute the utility for collecting HDLM error information
(
DLMgetras
).
• The system is started.
(3) File Systems Supported by HDLM
When using a file system, the related programs are as follows:
• ext2 (supplied with the OS)
• ext3 (supplied with the OS)
• ReiserFS(supplied with the OS)
3.1.7 Related Products When Using SUSE LINUX Enterprise Server
10
The following describes related products when SUSE LINUX Enterprise Server 10 is
used.
(1) Cluster Software Supported by HDLM
When you use HDLM in a cluster configuration, you must install the same version of