This manual describes the procedures for installing and replacing the 20 Gbyte
4 mm tape auto-loader in the following:
The procedures to install or replace the drive are shown in Figure 1-1. These procedures are explained in greater detail in each system-specific chapter.
You need the following tools:
Exposure to a sudden temperature or humidity change could cause condensation within the drive which could damage it. At the installation site, allow the drive to remain in its packing container until its temperature matches that of the surrounding air. Use Table 1-1 as a guide for allowable times before unpacking the drive based on the temperature of the drive upon receipt.
Table 1-1 Acclimation Times for a Drive
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Temperature Differential from Internal Acclimation Time and External Temperatures -----------------------------------------------------------------------
Degrees (F) Degrees (C) Hours +/-15 +/-8.3 1 +/-20 +/-11.1 2 +/-30 +/-16.6 4 +/-40 +/-22.2 6 +/-50 +/-27.7 7 +/-60 +/-33.3 8 -----------------------------------------------------------------------
Caution -
A drive is an electromechanical device that may be damaged by excessive physical shock. Store or transport the drives in the right-side up position only. Do not shake, bump, or drop the drives when moving them. Such physical shock or incorrect positioning can damage the drives.Caution -
Circuit board components are vulnerable to damage by electrostatic discharge (ESD). An electrostatic charge can build up on the human body and then discharge when you touch a board or a magnetic storage device, such as a drive. Such discharge can be produced by walking across a carpet and touching a board, or by any other similar action. Before handling any board or magnetic storage device, make sure you dissipate your body's charge by following these instructions carefully.Make sure the adhesive side is against your skin. See Figure 1-2.
Figure 1-2 Attaching the Wrist Strap
This prevents static discharge from accumulating in the device.
If the drive is damaged, keep all contents and packing materials for the carrier's agent to inspect and do not proceed with the installation. If the drive is not damaged, save the packing materials for future use.
There are six screws on the bottom of the auto-loader; remove only the two screws that protrude slightly.
Save the mylar sheet and the two screws. If you ship the unit at a later date, reverse these steps to replace the mylar sheet in the unit.
The JP4 connector should not have a jumper installed horizontally over both pins.
Attach the left and right brackets to the drive as follows:
Figure 1-5 Attaching the Left Bracket
The fan will be at the rear of the unit when the bracket is properly aligned.
Figure 1-6 Attaching the Fan Subassembly Bracket
This cable is hardwired to the fan.
Note - These procedures apply only if you are using the Solaris 2.2 operating system. The Solaris 2.1 and other Solaris 2.x releases are not affected by this bug.
If your system is running on the Solaris 2.2 operating system, you must make a change to the /etc/system file to rectify a known bug in that version of the operating system.
The following procedure turns off the soft error reporting function in the driver. You must perform this procedure to avoid possible system failures when the tape drive is accessed. Once performed, this procedure resides on the system for all future reboot operations.
To modify the /etc/system file:
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prompt% su Password: <enter the superuser password'> prompt# cd /etc ----------------------------------------------
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prompt# vi system G i ----------------------
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set st:st_report_soft_errors_on_close=0 -------------------------------------------
The example below shows where this line appears in the file:
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set: Set an integer variable in the kernel or a module to a new value. This facility should be used with caution. See system(4). Examples: To set variables in `unix': set nautopush=32 set maxusers=40 To set a variable named `debug' in the module named `test_module' set test_module:debug = 0x13 set st:st_error_level=0 set nfs:nfs_fastpath=0 set st:st_report_soft_errors_on_close=0 <added line'> -------------------------------------------------------------------
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:wq -------