HP Hitachi Dynamic Link Manager Software - Manual (Page 729)

C. Functional Differences Between Versions of HDLM
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Table C-1: JRE/JDK Version Required for HDLM GUI
C.8 Functional Differences Between Version 5.7.1 or Later and
Versions Earlier Than 5.7.1
In versions earlier than 5.7.1, if the HDLM driver fails to allocate memory for an I/O
operation when reading or writing from the HDLM device, it returns an error instead
of retrying.
In version 5.7.1 or later, the system tries to allocate the memory again and the I/O
operation is executed successfully. The number of retries can be set by the user. By
default, the system retries the operation until memory is allocated.
C.9 Functional Differences Between Version 5.7.0-01 or Later and
Versions Earlier Than 5.7.0-01
In versions earlier than 5.7.0-01, when an I/O request is sent to a path in the
Online(E)
status despite all paths being disconnected, the status of the path is
changed to
Offline(E)
and another path is placed in the
Online(E)
status. In
version 5.7.0-01 or later, even if an I/O request is sent to a path in the
Online(E)
status, the status of the path does not change.
In the event of path recovery after all paths have failed, the paths must be placed online
by automatic failback or by using a command before you can access the data.
C.10 Functional Differences Between Version 5.7 or Later and
Versions Earlier Than 5.7
In version 5.7 or later, if there are no files under the
/etc/opt/
DynamicLinkManager
directory when HDLM is uninstalled, the directory is deleted.
OS Required version of JRE or JDK
Earlier than
HDLM 5.7.1
HDLM 5.8 or
later
Red Hat Enterprise Linux AS3/ES3 (IA32)
Red Hat Enterprise Linux AS4/ES4 (IA32)
SUSE LINUX Enterprise Server 9 (IA32) JRE v1.4.2_08 JRE v1.4.2_09
Red Hat Enterprise Linux AS3/ES3 (IPF)
Red Hat Enterprise Linux AS4/ES4 (IPF) JDK v1.4.2_08 JDK v1.4.2_09
Red Hat Enterprise Linux AS3/ES3 (EM64T/AMD64)
Red Hat Enterprise Linux AS4/ES4 (EM64T/AMD64)
SUSE LINUX Enterprise Server 9 (EM64T/AMD64) JRE v1.5.0_03
(JRE 64 bit
version is
supported)
JRE v1.5.0_05
(JRE 32 bit
version is
supported)