There are no serviceable parts in a drive assembly. If it fails, it must be replaced in
its entirety (drive, bezel, and tray). When you replace a drive, be sure to order and
install the correct drive. Using an unsupported drive causes the drive to be locked
out by the controller firmware.
Attention:
1. After you remove a drive from a bay, wait 70 seconds to allow the drive to spin
down before you replace or reseat the drive. Failure to do so might cause
unpredictable results.
2. Never hot-swap a drive when its associated green activity LED is flashing or its
associated amber fault LED is flashing. Hot-swap a drive only when its
associated amber fault LED is lit continuously or when the drive is inactive and
its associated green activity LED is not flashing.
Note: If the hard disk drive that you want to remove is not in a failed or bypass
state, always use the DS Storage Manager software either to place the drive
in a failed state or to place the array that is associated with the drive (or
drives) in an offline state before you remove the drive from the enclosure.
Controllers
The DS3500 storage subsystem comes with one or two RAID controllers. When the
DS3500 storage subsystem has two controllers, the controllers are hot-swappable
and redundant. The controllers contain the storage subsystem control logic,
interface ports, and LEDs. Each controller contains the following ports:
v Two 6 Gbps SAS host ports
v One SAS drive port to connect EXP3500 expansion enclosures
v Two Ethernet ports for subsystem management
v Support for one optional host port adapter:
– Two-port 6 Gbps SAS
– Four-port 8 Gbps FC
– Four-port 1 Gbps iSCSI
The Ethernet ports come with the following default IP addresses:
Port 1 on controller A is 192.168.128.101
Port 2 on controller A is 192.168.129.101
Port 1 on controller B is 192.168.128.102
Port 2 on controller B is 192.168.129.102
The subnet mask for both Ethernet ports is 255.255.255.0.
Attention: When a DS3500 storage subsystem has two RAID controllers, the
controllers must be identical to each other in hardware (host port adapter and cache
size) and firmware. If you install a host port adapter in one controller, you must
install an identical host port adapter in the other controller.
The storage management software automatically sets the enclosure ID for the
controllers. You can change the enclosure ID setting through the DS Storage
Manager software only. There are no switches on the DS3500 chassis to manually
set the enclosure ID. Both controller enclosure IDs are identical under normal
operating conditions.
Figure 7 on page 10 shows a single-controller storage subsystem without an
optional host port adapter installed. See “Cabling the DS3500 storage subsystem”
on page 23 for illustrations of the storage subsystem with optional host port
Chapter 1. Introduction 9
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