HP Hitachi Dynamic Link Manager Software - Manual (Page 88)

Storage system type
Number
of paths
connecte
d to the
voting
disk
Formula for obtaining the value
of DISKTIMEOUT
• Hitachi USP
• Universal Storage
Platform V/VM
• Virtual Storage Platform
4 or more number-of-paths-connected-to-the-
voting-disk x 60 seconds
• Hitachi AMS2000/AMS/
WMS/SMS series
• Thunder 9500V series
6 or less You do not need to change the value
of DISKTIMEOUT.
7 or more number-of-paths-connected-to-the-
voting-disk x 30 seconds
For details on how to change MISSCOUNT and DISKTIMEOUT, contact the
company with which you have an Oracle Support Services contract.
Note that when you uninstall HDLM from the above configuration, you
must reset the values of MISSCOUNT and DISKTIMEOUT to their original
values. Therefore, make a note of the original values of MISSCOUNT and
DISKTIMEOUT before changing them.
• Configurations in which Oracle RAC is installed in Oracle Cluster File
System are not supported.
• If you install HDLM while resident software (such as antivirus software) is
running, HDLM might not operate correctly. Before installing HDLM, make
sure that you have stopped all software programs, including all resident
software.
Notes on New Installations and Upgrade Installations
• When installing HDLM, use only one cable to connect the host to the
storage system until instructed otherwise in the procedure in section
Performing a New Installation of HDLM on Windows Server 2003 on page
3-28 , or Performing a New Installation of HDLM on Windows Server 2008
on page 3-51 . If the host is restarted while it is connected to the storage
system via multiple paths at a time other than those indicated inthe
procedure in section Performing a New Installation of HDLM on Windows
Server 2003 on page 3-28 , or Performing a New Installation of HDLM on
Windows Server 2008 on page 3-51 , the contents of the disk might
become corrupted.Note that you can upgrade or re-install HDLM in a
multipath configuration in Windows Server 2003 SP1 or later and in
Windows Server 2008.
• HDLM does not support multiple-path configurations in which both an FC-
SAN and IP-SAN exist on the same LU.
• If you install HDLM for the first time, or perform an upgrade installation of
HDLM after the license has expired, a license key is necessary. To update
the HDLM license, execute the dlnkmgr command's set-lic operation.
The expiration date of the license key is determined by the license key
3-22
Creating an HDLM Environment
Hitachi Dynamic Link Manager User Guide (for Windows(R))