Fujitsu Sparc Enterpise M8000 Product Notes page 22

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For 1027A-Z/X1027A-Z, PCIe Dual 10 Gigabit Ethernet Fiber XFP cards, these
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limits apply:
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No more than four 4447A-Z/X4447A-Z, PCIe Quad-port Gigabit Ethernet
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Adapter UTP cards in an External I/O Expansion Unit (two per PCIe I/O boat).
On the SPARC Enterprise M8000/M9000 servers with XCP 1050 or later, the dual
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XSCF Unit feature is working. Therefore, you can not downgrade SPARC
Enterprise M8000/M9000 servers with XCP 1050 or later to XCP 1040 or XCP
1041, which does not support dual XSCF Unit feature.
You cannot use the following user account names, as they are reserved for system
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use: root, bin, daemon, adm, operator, nobody, sshd, rpc, rpcuser, ldap,
apache, ntp, admin, proxyuser, and default.
XSCF-LAN is compliant with auto-negotiation. When you connect XSCF-LAN
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and the network device which has been fixed to the full-duplex mode, according
to the IEEE 802.3 rule, XSCF-LAN communicates in the half-duplex mode. Due to
this, network communication speed may slow down or communication error may
occur. Do not fail to set the network device which connects with XSCF-LAN to the
auto-negotiation mode.
While you are performing DR operation to a COD board, do not execute the
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addcodlicense(8)/deletecodlicense(8)/setcod(8) command.
At this time the restoredefaults(8) command is not supported.
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At this time the -e, -l, -P options of the snapshot(8) command are not
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supported.
10 SPARC Enterprise M8000/M9000 Servers Product Notes for XCP Version 1092 • April 2010
The server hardware error signal (power fail, temperature error, and fan error)
(*ALARM)
Do not use more than two cards per domain.
Do not use these cards in an External I/O Expansion Unit.