16.629 bytes

Product Information

Document ID: MIGR-47WJ8M

Netfinity 1000 - Internal drives, expansion bays, drive specifications and types of cables

Applicable to: World-Wide

Internal drives
You can add drives to the server to increase storage capacity and to enable the server to read multiple types of media. Several types of drives are available, such as:

• Diskette
• Hard disk
• Rewritable optical disc
• Tape

Expansion bays: Internal drives are installed in bays at the front and rear of the server. The bays are referred to as bay 1, bay 2, and so on.

Drive bays 1 through 4, at the front of the server, are contained in the upper drive bracket. Drive bays 5 and 6, at the rear of the server, are contained in the lower drive bracket.

• Note A drive bracket is also known as a drive bay assembly.

  
  

  
  The server comes with the following preinstalled drives:

  • A 3.5-inch, 1.44 MB diskette drive in bay 4
  • A 3.5-inch, SCSI hard disk drive in bay 6 (in some models)
  • A 5.25-inch, CD-ROM drive in bay 1
  
  

  
  The following illustration shows the locations of the bays in the server. This illustration shows the server front view, with the side panel removed.
  
  

  
  The following is a detailed description of the drive bay contents.
  
  CD-ROM Drive: The server comes with an integrated drive electronics (IDE) CD-ROM drive.
  
  Open Bays: The server's design accommodates 3.5-inch and 5.25-inch devices, such as hard disk, tape, and rewritable optical disk drives. The number and capacities of the hard disk drives vary by model.
  
  For information on the supported types of drives and their installation, see Drive specifications, Preinstallation steps (all bays), and http://www.ibm.com/pc/us/compat/ on the World Wide Web.
  
  Diskette Drive: The 3.5-inch, 1.44 MB (See footnote 2) diskette drive uses 1 MB (unformatted) or 2 MB (unformatted) diskettes.
  
  ______________________
  (Footnote 2)
  MB equals approximately 1 000 000 bytes; total user-accessible capacity may vary depending on operating environment.
  
  Drive specifications:
  Table 4 describes some of the drive types that you can install in each bay, and their width and height requirements.
  
  
  

  • Bays	Drive Widths	Drive Types	Drive Height
    1	3.5-inch (3) 5.25-inch	Removable media (4) drive, hard disk drive CD-ROM drive	25.4 mm (1.0 in.) 41.3 mm (1.6 in.) (6)
    2	3.5-inch (3) 5.25-inch	Removable media (4) drive, hard disk drive	25.4 mm (1.0 in.) 41.3 mm (1.6 in.) (6)
    3	3.5-inch	Hard disk drive (5)	25.4 mm (1.0 in.)
    4	3.5-inch	Diskette drive	25.4 mm (1.0 in.)
    5 and 6	3.5-inch	Hard disk drive (5)	25.4 mm (1.0 in.) 41.3 mm (1.6 in.) (6 , 7)

    
    

    
    
    
    Table 4. Maximum Allowable Drive Sizes
    ______________________________
    (3) To properly install a 3.5-inch drive in bay 1 or 2, use the 3.5-inch conversion kit for a 5.25-inch bay that is already installed in bay 2. If you are installing a 5.25-inch drive in bay 2, you must first remove the conversion kit.
    
    (4) Removable media include CD-ROMs, optical discs, diskettes, and tapes. If you install removable-media drives, you must install them in bays 1-4 only. The server supports only one diskette drive (standard in bay 4).
    
    (5) In some models, the CD-ROM drive might be set as the default startup (or boot) drive. However, if a hard disk drive is preinstalled, you can change the startup sequence, and specify the hard disk drive as the startup drive. See Start Options for information about changing the startup sequence.
    
    (6) Drives that are higher than 41.3 mm (1.6 in.) cannot be installed.
    
    (7) One slim-high drive has a height of 25.4. mm (1.0 in.). One half-high drive has a height of 41.3 mm (1.6 in.). Therefore, you can install two slim-high drives or one half-high drive between bays 5 and 6.
    
    Types of cables:
    The server uses cables to connect IDE and SCSI drives to the power supply, riser card, and system board. The diskette drive is also powered through a cable attached to the riser card. Each cable connector is
    designed to fit a corresponding drive connector. The following cables are provided:
    
    

    • Four-wire power cables connect most drives to the power supply. At the ends of these cables are plastic connectors that attach to different drives; these connectors vary in size. Also, some power cables attach to the riser card.
    • Flat signal cables, sometimes called ribbon cables, connect IDE drives to the riser card. There are two sizes of signal cables that come with the server.
    • The wider signal cable attaches to the primary IDE connector on the back of the riser card.
    • The narrower signal cable attaches to the diskette drive and to the diskette drive connector on the back of the riser card.
    • A flat SCSI signal cable for connecting devices to the SCSI adapter.
    
    

    
    Since the server is equipped with an UltraSCSI adapter, it has a ribbon cable that is connected to the internal SCSI hard disk drive. One end of this cable is connected to the 68-pin, internal SCSI connector on the SCSI adapter. The other end of the SCSI cable has a terminator. This cable provides four connectors for attaching other internal SCSI devices.
    
    For more information about SCSI devices, see SCSI drives.
    
    

    • Note To locate connectors on the system board, see System board illustration.

      
      

      The diskette, IDE CD-ROM, and other IDE device connectors are on the back of the riser card. When you
      are installing optional drives, refer to the following illustration for the location of the appropriate connectors.
      
      

      
      

      Note The following illustration is for reference only. Before you install drives, be sure to check the orientation of the server riser card for the correct connector locations. The bottom edge of this card is located at the back of the server.

      
      

      
      

      
      The following illustration shows the connectors on the riser card.
      
      
      
      

      
      

      Notes 1. Alert on LAN and AssetID are available on some models only. 2. If you attach a 4-position cable connector to the 2-pin Modem Wakeup connector, ensure that the unused positions are next to the bottom of the riser card, as shown in the illustration. If this cable is incorrectly attached, the server might automatically restart each time that you turn off the power.

      
      

      
      

      
      The following are some important points to remember when connecting power and signal cables to internal
      drives:

      • The diskette drive, hard disk drive (if applicable), and CD-ROM drive that are preinstalled in the server come with power and signal cables attached. The CD-ROM drive is attached to the primary IDE connector on the back of the riser card. If you replace any drives, it is important to remember which cable is attached to which drive.
      • When you install a drive, ensure that the connector at the end of the signal cable is connected to the system board.
      • The CD-ROM drive and the diskette drive are the only IDE devices that come with the server. You can install another IDE device, such as a CD-ROM drive or tape drive; however, IDE hard disk drives are not supported.
      • If two or more IDE devices are used on a single cable, one must be designated as the primary or master device and all others as secondary or subordinate devices; otherwise, some of the IDE devices might not be recognized by the system. The primary or secondary designation is determined by switch or jumper settings on each IDE device. In this server, the IDE CD-ROM drive is the primary device. If you install a second IDE device, it must be the secondary device.
      • You can install one diskette drive only.
      • If you plan to attach an internal SCSI drive, connect it to one of the available connectors on the internal SCSI cable.
      
      

      
      

      • Note The SCSI cable provides termination.

        
        

        If you plan to attach an external SCSI drive, see External options for additional information.
        
        For help in selecting drives, cables, and other options for the server, do one of the following:

        • Within the United States, call 1-800-IBM-2YOU (1-800-426-2968), your IBM reseller, or your IBM marketing representative.
        • Within Canada, call 1-800-565-3344 or 1-800-465-7999.
        • Outside the United States and Canada, contact your IBM reseller or IBM marketing representative.
        
        
        
        

        	Search Keywords
        	Document Category
        	Date Created	15-05-99
        	Last Updated	14-05-99
        	Revision Date	15-05-2000
        	Brand	IBM PC Server
        	Product Family	Netfinity 1000
        	Machine Type	8477
        	Model	All
        	TypeModel
        	Retain Tip (if applicable)
        	Reverse Doclinks and Admin Purposes