Compaq ProLiant Clusters HA/F100 Administrator's Manual page 86

3-6 Compaq ProLiant Clusters HA/F100 and HA/F200 Administrator Guide
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MSCS software requires drive letters to remain constant throughout the
life of the cluster; therefore, you must assign permanent drive letters to
your shared drives. If you are performing manual software installation,
use Disk Administrator or Disk Management to assign permanent drive
letters.
Microsoft Windows NTS/E or Windows 2000 Advanced Server makes
dynamic drive letter assignments (when drives are added or removed, or
when the boot order of drive controllers is changed), but Disk
Administrator or Disk Management allows you to make permanent drive
letter assignments.
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Cluster nodes can be members of only one cluster.
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When you set up the cluster interconnect, select TCP/IP as the network
protocol. MSCS requires the TCP/IP protocol. The cluster interconnect
must be on its own subnet. The IP addresses of the interconnects must
be static, not dynamically assigned by DHCP.