StorCase Technology DE200i-SWU2 - Manual (Page 28)

DE200i-SWU2 User's Guide - Rev. A00 StorCase Technology Inc.
Appendix B - Factory-Installed Options 21
NOTE: The timer for device spin down is controlled by a small selector, located in a
cutout on the side of the DE200i-SWU2 Receiving Frame as shown in Figure
B-4. When the key is turned to the off position, and when the timer receives a
No SCSI Activity signal from the isolator board, it waits the specified delay time
before displaying a “u” on the front panel of the Receiving Frame. The amount
of time required for a disk drive to spin down is approximately 15 seconds or
more. This number can vary depending on the type of SCSI device and
manufacturer (e.g. a Seagate Barracuda may require 45 seconds). The
factory configuration is set for 20 seconds. A different delay time may be
selected with the provided alignment tool. Refer to the SCSI device
manufacturer’s manual for more information on required device spin down
time.
Carrier Removal
Follow the procedures below to remove the DE200i-SWU2 carrier from the receiving frame
equipped with the isolator board.
1. Verify that the drive is not active. If the system is on a network, make certain other
users are not accessing the target drive, then disable it from the network. Dismount
the drive.
2. Turn the DE200i-SWU2 key lock mechanism (located on the front of the receiving
frame), clockwise to the OFF position. This unlocks the drive from the receiving
frame and activates the isolator board. The unit number on the display will begin
flashing.
WARNING: Be careful not to remove or disturb the carrier unit at this point. Although
the carrier is physically unlocked, the drive requires a minumum of 15
seconds to spin down and is subject to vibration and possible damage
during this period.
3. As the unit number flashes, the board monitors the activity of the SCSI bus. When
activity is no longer present, the board will remove power from the drive and then
remove the device from the SCSI Bus. The unit number will continue to flash during
this period.
4. After a short length of time the unit display will turn from a flashing unit number to a
steady “u”, indicating that the device is powered down, unlocked and ready to be
removed from the receiving frame.