hot-swap backplanes may experience intermittent drive errors,
defunct (DDD) drives that don't spin down or drive LEDs that
don't blink when a drive has failed.
The system is an
8640, 8641, 8642 or 3518 with one or more hot swap backplanes
Check the Backplane
1. Shutdown the operating system
Power off the server.
3. Verify the Backplane Address
ALL 8640 and 8641 backplanes: Jumpers should NOT be present
on the pins for Bank0, Bank1, or Bank2 on any backplane.
Refer to Figure 1. The PC Server 520 (8641) may have shipped
with a backplane address jumper installed; it should be
b. For 8642 and 3518 backplanes: Each
backplane MUST have a unique address. A jumper should be
present on the pins for Bank0, Bank1, OR Bank2 depending on
the backplane's location within the server or expansion
enclosure. Refer to Figure 1 and Table 1 below to determine
the correct jumper setting for an 8642 or 3518
Backside of backplane
The documentation in the Server 520 User's Handbook, part
number 62H7096, page 177 is incorrect. Backplane address
jumpers should NOT be installed on any Server 520