User manual QUANTUM DAT AUTOCHANGER REV H

[. . . ] Installation and Operating Guide DAT Autochanger Advanced Digital Information Corporation Copyright Notice © Copyright adic 1993 The information contained in this document is subject to change without notice. This document contains proprietary information that is protected by copyright. No part of this document may be photocopied, reproduced or translated to another language without the prior written consent of adic. adic shall not be liable for errors contained herein or for incidental or consequential damages (including lost profits) in connection with the furnishing, performance or use of this material whether based on warranty, contract, or other legal theory. [. . . ] Your backup software that controls the DAT Autochanger determines the proper IDs for the drive and robotics. Refer to the User's Manual provided with your software for the correct IDs. They are the small red rotary switches to the left of the SCSI connectors. You may change the IDs by using a small flat-blade screwdriver to move the switch to the proper position. When operated in sequential access mode the robotics section of the DAT Autochanger does not appear on the bus, and therefore does not require a SCSI ID. Preparing the Host Computer System Power Off the Host Computer p Turn off the power switch. Unplug the cord from the AC outlet. Getting Started 9 Note The host computer system normally is the network server. Confirm and/or Install the SCSI host interface The DAT Autochanger must be connected to either an integrated SCSI host or a SCSI interface (host adapter) card installed in the computer ­ either directly to the SCSI connector on the card or as part of an existing SCSI chain. The SCSI interface must be installed before you connect the DAT Autochanger. Now you are ready to connect the DAT Autochanger to your host computer. Follow the instructions provided in the next chapter. System Software A variety of backup and data storage software is available for use with the DAT Autochanger. Please check with adic Sales or the Customer Assistance Center if you have a question on the compatibility of a particular software package. 10 Getting Started Chapter 2 Connecting the DAT Autochanger This Chapter. . p provides instructions for physically connecting your DAT Autochanger to your host system. 11 Connecting the Interface Cables First make sure the interface cable you are using has the appropriate connectors on each end. If the host computer's SCSI connector is different from that on the DAT Autochanger, you will need to obtain a different cable than the one supplied with the unit. Connect the interface cables as shown in the following illustration and explained in the following steps: Note The interface cables must be shielded ­ adic can supply you with the correct type(s). p Check that the power switches on both the DAT Autochanger and the host computer are off. p Attach the 50-pin end of the SCSI interface cable to either connector on the rear of the DAT Autochanger. Press firmly and secure the bail locks. Host Computer DAT Autochanger SCSI Interface Cable Terminator 12 Connecting the DAT Autochanger Note The bail locks at both ends of the SCSI cable must be securely fastened in order for the DAT Autochanger to communicate properly with the computer. p Plug the other end of the SCSI cable into the external SCSI connector on your host computer. p If the DAT Autochanger is the only SCSI device you are installing, insert an external single-ended terminator into the second SCSI connector. If you plan to connect another SCSI device on the same SCSI channel, see the next section. Connecting More Than One DAT Autochanger If installing additional DAT Autochangers on the same SCSI channel, attach each subsequent unit to the previous unit with an interface cable. You can install up to seven devices to each SCSI channel, but each DAT Autochanger may represent more than one SCSI device. Host Computer DAT Autochanger SCSI Interface Cable Terminator Connecting the DAT Autochanger 13 Note When counting SCSI devices, keep in mind that a DAT Autochanger can contain up to two devices (the DAT drive and the robotics). Don't forget to include in your count other devices on the SCSI channel, (i. e. , a tape unit, an additional hard drive, etc. ). Each DAT Autochanger unit contains more than one SCSI device and may require more than one SCSI ID (depending on the mode of operation). [. . . ] Federal Communications Commission gigabyte (1 GB = 1, 024 Megabytes) Hierarchical Storage Management ­ a system where different types of storage medium are used based on cost and time efficiency. For example, for fastest access, data is usually stored on a local hard drive. If you have a very large file that is needed occasionally, you may store it on a tape in a DAT Autochanger magazine, or on an optical drive. A host computer system that requests an operation to be performed by a target device. [. . . ]