Controllers; Right-Side Bezel (Ds3512 And Exp3512); Bottom Shelf (Ds3524 And Exp3524) - IBM DS3500 Installation, User's, And Maintenance Manual

Drives 1 - 4
Drives 5 - 8
Drives 9 - 12
Figure 1-5. Right-side bezel (DS3512 and EXP3512)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Drives 1 - 24
Figure 1-6. Bottom shelf (DS3524 and EXP3524)
The drives come preinstalled in drive trays. Install drives in the drive bays on the front of the storage
subsystem or storage enclosure. When a drive is installed, the drive and tray bay designation is set
automatically. The hardware addresses are based on the enclosure ID setting on the controller and on the
physical locations of the drives.
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 drive that you want to remove is not in a failed or bypass state, always use the 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 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 storage enclosures
v Two Ethernet ports for subsystem management
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System Storage DS3500 and EXP3500: Installation, User's, and Maintenance Guide