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DCSE: PowerEdge 1550 Self-Study Version 0.3, 4 December, 2000
Page 82 Dell
Message Problem Suggested Solution
The following SCSI IDs
are not responding:
Channel x:a.b.c
The physical drives
with SCSI IDs a, b,
and c are not
responding on SCSI
channel x.
Make sure the physical drives are properly
connected and are powered on.
PERC Audible Messages
Tone Pattern Meaning Examples
Three seconds
on and one
second off
A logical drive is offline. One or more drives in a RAID 0
configuration failed.
Two or more drives in a RAID 1, 5, 10, or 50
configuration failed.
One second on
and one second
off
A logical drive is running
in degraded mode.
One drive in a RAID 1, 5, 10, or 50
configuration failed.
One second on
and three
seconds off
An automatically initiated
rebuild has been
completed.
While you were away from the system, a
disk drive in a RAID 1, 5, 10, or 50
configuration failed and was rebuilt.
Onboard Network Interface
Magic packet is an Ethernet packet that contains a synchronization byte
stream and 16 repetitions of the managed target MAC address. It is used
to “wake” a system that is connected to a network and in a low power
state.
Wake on interesting packet is not part of the Wake-on-LAN specification.
It is part of Microsoft’s Network Device Class Power Management
Reference Specification. It details network wakeup frames other than a
Magic Packet. The purpose of the frame wake-up mode is to wake up the
system when another machine on the network needs to communicate with
this system. The mechanism described in this specification does not
require the application running on the remote machine to send a special
wake-up pattern. Instead when the network device is operating in frame
wake-up mode, it tries to identify certain "interesting" frames that are sent
by existing network protocols. Some examples of frames that might cause
wake-up signals are ARP requests; NETBIOS name lookups, an IP frame
addressed to the machine, etc. These frames may be addressed as
broadcasts, multicasts, or directly addressed frames.
System Chipset
The north Bridge chip integrates the functions of the memory controller,
AGP bus interface, the processor interface, and front side bus for the
CIOB20 into a single chip.