HP Hitachi Dynamic Link Manager Software Licenses - Manual (Page 99)

the change, use the following table to obtain the value to be specified,
and then change the current value to a value equal to or greater than
the value you have obtained.
Table 3-16 Formula for Calculating DISKTIMEOUT
Storage system type
Number
of paths
connecte
d to the
voting
disk
Formula for obtaining the value of
DISKTIMEOUT
• Lightning 9900V series
• Hitachi USP series
• Universal Storage
Platform V/VM series
• Virtual Storage Platform
series
• VSP G1000 series
• HUS VM
3 or less You do not need to change the value
of DISKTIMEOUT.
4 or more number-of-paths-connected-to-the-
voting-disk x 60 seconds
• Hitachi
AMS2000/AMS/WMS/SM
S series
• HUS100 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 a contract for Oracle Support
Services.
Note that when you remove 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.
• In Oracle RAC 11g, for the following devices, device name should be
matching between the nodes:
¢
voting disk
¢
Oracle Cluster Registry
¢
Oracle database file
¢
system table area
¢
users table area
¢
ASM disk to be used for ASM disk group creation
In an environment where an HDLM raw device is used as the devices
listed above, if the HDLM raw device name does not match between the
nodes, create an alias device file of the HDLM raw device in each node by
using the following procedure and set the created alias device file in
Oracle RAC 11g.
Creating an HDLM Environment
3-33
Hitachi Dynamic Link Manager (for Solaris) User Guide