Hitachi Dynamic Link Manager Software Users Guide for Windows (7.6)

current value to a value equal to or greater than the value you have
determined.
Table 3-11 Formula for Calculating MISSCOUNT
Storage system type
Formula for obtaining the value of
MISSCOUNT
• Lightning 9900V series
• Lightning 9900 series
• Hitachi USP series
• Universal Storage
Platform V/VM series
• Virtual Storage Platform
series
• HUS VM
number-of-paths-connected-to-the-voting-disk
x 60 seconds
• Hitachi AMS2000/AMS/
WMS/SMS series
• HUS100 series
• Thunder 9500V series
number-of-paths-connected-to-the-voting-disk
x 30 seconds
¢
When using Oracle RAC 10g 10.2.0.2.0 or later or Oracle RAC 11g:
In addition to the value of MISSCOUNT shown above, also change the
value of DISKTIMEOUT. As with MISSCOUNT, the value of DISKTIMEOUT
is different for each type of storage system. Use the following table to
determine a value, and then change the current value to a value equal
to or greater than the value you have determined.
Table 3-12 Formula for Calculating DISKTIMEOUT
Storage system type
Number
of paths
connecte
d to the
voting
disk
Formula for obtaining the value
of DISKTIMEOUT
• Lightning 9900 series
• Lightning 9900V series
• Hitachi USP series
• Universal Storage
Platform V/VM series
• Virtual Storage Platform
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/SMS 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
3-22
Creating an HDLM Environment
Hitachi Dynamic Link Manager User Guide for Windows
®