Seagate ST31230N/ND Guía de instalación descargar pdf (Pagina 244)

16-12 Hardware maintenance

Removing and replacing the disk unit in a shadowed EC 11

Standard 1.0 Option 11 EC Installation and Maintenance Guide November 1999

Removing and

replacing the

secondary disk

To replace the secondary disk in a shadowed system, follow

these steps.

Step Action

1 Disable disk shadowing.

2 Courtesy down the system.

3 Power down the EC 11.

4 Open the locklatches on the drive plate of the

secondary disk to be replaced, and gently pull the

drive plate forward until it clears the MSU mounting

plate.

5 Ensure that the replacement disk drive has the same

part number, including the suffix, as the original disk.

6 Ensure that the SCSI ID of the replacement

shadowed secondary disk is set to 2. To do this,

remove any jumpers on the header on the first and

third pin positions. Insert a jumper on the header in

the second pin position. See Chapter 6, “Installing

the disk drives and the tape drive” for the location of

the jumper.

7 Ensure that parity is enabled. See Chapter 6,

“Installing the disk drives and the tape drive” for

jumper settings.

8 Ensure that the terminators are disabled by

removing the Terminating Enable (TE) jumper.

9 Install the disk cover plates by sliding them in

between the disks and the disk drive plates so that

the front of each disk is covered.

10 Install the disk drive plate to the MSU mounting plate

by opening the locklatches, aligning the drive plate

to the MSU plate, sliding the drive plate into the

MSU plate, and closing the locklatches.

11 Turn on the power and restart the system.

12 Synchronize the disks.

Result: The system will copy data from the primary

disk to the secondary disk. Refer to the “Enabling/

disabling disk shadowing” topic on page 16-13.

13 Enable disk shadowing.

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Seagate ST31230N/ND Guía de instalación Pagina 244