StorCase Technology DE200i-SWCU2 - Manual (Page 28)

DE200i-SWCU2 User's Guide - Rev. A01 StorCase Technology, Inc.
Appendix B - Factory-Installed Options 21
Carrier Removal
Follow the procedures below to remove the DE200i-SWCU2 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 DE200 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 ID 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 minimum 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 ID display will turn from a flashing unit ID number
to a steady “u”, indicating that the device is powered down, unlocked and ready to be
removed from the receiving frame.
NOTE: The timer for device spin down is controlled by a small selector, located in a cutout
on the side of the DE200i-SWCU2 Receiving Frame as shown in Figure 10 (page
14). 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.