Internal drive bays - Netfinity 5500

Resolving The Problem

Internal drives are installed in bays. Your server comes with one 3.5-inch, 1.44 MB diskette drive and one CD-ROM drive.


Your server contains hardware that lets you replace a failed hard disk drive without turning off the server. Therefore, you have the advantage of continuing to operate your system while a hard disk drive is removed or installed. These drives are known as hot-swappable drives. They are also referred to as hot-swap drives.

Each hot-swap drive bay has two indicator lights on the front of the server (see "Information LED Panel" in the HMM). If the amber Hard Disk Status light for a drive is lit continuously, that individual drive is faulty and needs to be replaced. When the Hard Disk Status light indicates a drive fault, you can replace a hot-swap drive without turning off the server.

Each hot-swap drive that you plan to install must have a hot-swap-drive tray attached. The drive must have a single connector attachment (SCA) connector.

Hot-swap-drive trays come with the hot-swap drives.

• Your server comes with a pre-installed 3.5-inch, 1.44 MB diskette drive and a pre-installed IDE CD-ROM drive.
• Bays A and B come without a device installed. These bays are for 5.25-inch, half-high, removable-media drives, such as tape backup drives. Bays A and B can be combined into a single full-high bay.
• The Netfinity 5500 supports only one diskette drive.
• Your server does not support hard disk drives in bays A and B because of cooling considerations.

  NOTE: The server's EMI integrity and cooling are both protected by having the left front bays (removable-media bays) covered or occupied. When you install a drive, save the filler panel from the bay, in case you later remove the drive and do not replace it with another.

• If you are installing a device with a 50-pin connector in one of the removable-media bays (bays A B), you need a 68-pin to 50-pin converter.
• Your server supports six slim (1-inch) or three half-high (1.6-inch), 3.5-inch hot-swap hard disk drives in the hot-swap bays.
• The hot-swap bays connect to a SCSI backplane. This backplane is the printed circuit board behind the bay. The backplane supports up to six hard disk drives.
• The diskette drive uses 1 MB and 2 MB diskettes. For optimum use, format 1 MB diskettes to 720 KB and format 2 MB diskettes to 1.44 MB

SCSI drives
Some drives have a special design called small computer system interface, or SCSI. This design allows you to attach multiple drives to a single SCSI channel.

NOTES:

• Any information about SCSI drives also applies to other SCSI devices, such as tape drives.
• If you plan to install both internal and external SCSI devices, you must follow the instructions in “External options” in the HMM, in addition to the instructions in this section.

A 16-bit (wide) SCSI cable connects the hot-swap backplane to one channel of the integrated RAID SCSI controller on the system board. An additional 16-bit SCSI cable with connectors for optional devices in bays A and B connects to the second channel of the RAID controller. This cable has a terminator at the other end and is folded and restrained with a cable clamp to the bottom of the server between the open bays and the power supply area.

Each SCSI device that is connected to an individual channel of the RAID controller needs a unique identification (ID) so that the controller can identify the devices and ensure that different devices do not attempt to transfer data at the same time. (The two channels of the integrated RAID controller operate independently.) If you need to set IDs for SCSI devices, refer to the instructions that come with those devices.

The server automatically sets SCSI IDs for hot-swap hard disk drives, according to the jumper settings on the SCSI backplanes. The server uses the hard disk drive SCSI IDs to send status information to the indicator lights above each hot-swap bay.

The SCSI backplane in the server supports up to six hot-swap bays. The following table shows the default SCSI IDs that the backplane assigns for hot-swap hard disk drives.

You can change the default ID addresses of the drives by changing the jumper settings on the SCSI backplane. See SCSI backplane option jumpers. A simplified layout of the SCSI backplane is shown in SCSI backplane component locations.

The processing sequence for SCSI devices is set through the ServeRAID Configuration Utility program. The sequence proceeds from the lowest SCSI ID to the highest (0 to 6, then 8 to 15 determined by the jumper settings).

SCSI buses must be terminated at each end. The ends of the SCSI buses in the server are already terminated. All the hot-swap drives in the server have automatic termination and the RAID controller provides termination at the other end of the SCSI bus.

If you install SCSI devices in the removable-media bays (bays A and B), you must disable the termination on the devices; the RAID controller is already terminated and the SCSI cable for devices in the removable-media drive bays has a terminator at the other end. For example, when you install a SCSI device in a removable-media drive bay (bay A or B), set its termination to Disable, because the SCSI cable is already terminated at the end.

Refer to the information that come with the SCSI device for instructions about setting device jumpers or switches that control termination.

Before you install drives in the server, verify that you have all the cables and any other equipment specified in the documentation that comes with the internal drive. You might also need to perform certain preinstallation activities.

Some of the steps are required only during the initial installation of an option.

• Read “Safety information” in the HMM.
• Read the documentation that comes with the internal drive.

1. Choose the bay in which you want to install the drive.
2. Check the instructions that come with the drive to see if you need to set any switches or jumpers on the drive.
3. To install the drive, go to “Installing a 5.25-inch removable-media drive” or “Installing a drive in a hot-swap bay” in the HMM.

Installing a 5.25-inch removable-media drive
Before you begin

• Read “Safety information” in the HMM.
• Read the documentation that comes with the drive.
• Prepare the drive for installation (see “Preinstallation steps (all bays)” in the HMM).

Note: The server's EMI integrity and cooling are both protected by having the left front bays covered or occupied. When you install a drive, save the filler panel from the bay, in case you later remove the drive and do not replace it with another.

Refer to the following illustrations while you perform the steps in this procedure.

1. Screws for filler panel
2. Filler panel with EMI shield
3. Slide rails
4. Screws for slide rails
5. Drive

5. Drive
6. SCSI cable for the removable-media drive bays
7. Shuttle
8. Thumbscrews

1. Turn off the server and peripheral devices (see “Preparing to install options” in the HMM) and remove the top cover (see “Top cover removal” in the HMM).
2. Remove the NetBAY3 bezel and the media-bay trim bezel. (See “Server door and trim bezels removal” in the HMM.)
3. Remove the screws 1 and filler panel 2 from the bay opening. Save screws for later use in this procedure. You do not need the filler panel when you have a drive installed in the bay.
4. Touch the static-protective bag containing the drive to any unpainted metal surface on the server; then, remove the drive from the bag and place it on a static-protective surface.
5. Set any jumpers or switches on the drive according to the documentation that comes with the drive.
6. Use screws 4 of the appropriate size and length to attach a slide rail 3 to each side of the drive 5.

   Note: The slide rails and screws are included in the drive accessory kit that comes with the server.

7. Place the drive so that the slide rails engage in the bay guide rails. Push the drive into the bay and attach it with the two screws 1 from the filler panel.
8. Loosen the four thumbscrews 8 on the shuttle at the back of the server.
9. Pull the shuttle 7 toward the back of the server.
10. Connect one of the connectors on the SCSI cable for the removable-media drive bays 6 to the back of the drive 5.
11. Connect a power cable to the back of the drive. Power cables for removable-media drives come installed in the server. The connectors are keyed and can be inserted only one way. If you are installing another 5.25-inch drive, do so at this time. Otherwise, continue with the next step.
12. Push the shuttle 7 toward the front of the server and tighten the four thumbscrews 8 at the back of the shuttle.
13. Install the media-bay trim bezel and the NetBAY3 bezel that you removed earlier. (See “Installing the trim bezels and server door” in the HMM.)
14. If you have other options to install or remove, do so now; otherwise, go to “Completing the installation” in the HMM.

The bays on the right front of the server support hot-swap drives only.

Note: You do not have to turn off the server to install hot-swap drives in these bays. However, you must turn off the server when performing any steps that involve installing or removing cables.

• Read “Safety information” in the HMM.
• Read the documentation that comes with the drive.
• Review “ServeRAID Configuration program” in the HMM for information about the RAID controller and disk-array configuration.
• Prepare the drive for installation (see “Preinstallation steps (all bays)” in the HMM).

Refer to the following illustration while you perform the steps in this procedure.

1. Filler panel
2. Hot-swap hard disk drive
3. Drive tray handle (open position)

1. Unlock and open the server door (see “Preparing to install options” in the HMM).Attention: To maintain proper system cooling, do not operate the server for more than two minutes without either a drive or a filler panel installed for each bay.
2. Remove the filler panel(s) 1 from one of the empty hot-swap bays by inserting your finger into the depression at the left side of the filler panel and pulling it away from the server.
3. Install the hard disk drive 2 in the hot-swap bay by performing the following steps:
   
   
   1. Ensure that the tray handle 3 is open (that is, perpendicular to the drive).
   2. Align the drive/tray assembly so that it engages the guide rails in the bay.
   3. Gently push the drive assembly into the bay until the drive connects to the backplane.
   4. Push the tray handle to the right until it locks.
      
      
4. Check the hard disk drive status indicators to verify that the hard disk drives are operating properly.
5. Close and lock the server door.

Notes:

• Because the server has a RAID controller, you must reconfigure the disk arrays after installing hard disk drives. Record the configuration information. Replacing a drive in a hot-swap bay
• You do not have to turn off the server to remove a drive from the hot-swap bays.

Attention: Before you remove from a hot-swap bay a hard disk drive that is not defective, back up all important data. Before you attempt to remove a defective drive, thoroughly review the information that appears on the server screen to determine the location of the failed drive. “ServeRAID menus, screens, and drive states” in the HMM explains the status codes that the server uses to indicate a defective drive. Also, if the amber Hard Disk Status light for a drive is lit continuously, that individual drive is faulty and needs to be replaced.

If you remove a hard disk drive that is not defective from an array that already has a defective hard disk drive, all data in the array will be lost. This situation is especially relevant if you assigned RAID level 1 or 5 to the logical drives in the disk array. However, the RAID controller can rebuild the data that you need, provided that certain conditions are met. See “Replacing a faulty drive” in the HMM for further details.

• Read “Safety information” in the HMM.
• Read the documentation that comes with the drive.
• Reviewed “ServeRAID Configuration program” in the HMM for information about the ServeRAID controller and disk-array configuration.
• Prepare the drive for installation (see “Preinstallation steps (all bays)” in the HMM).

Refer to the following illustrations while you perform the steps in this procedure.

1. Hard disk drive
2. Drive tray handle (open position)

3. Screws for half-high drive
4. Screw holes for slim-high drive
5. Drive tray
6. Drive
7. Connector for half-high drive
8. Screws for half-high drive connector

1. Unlock and open the server door (see “Preparing to install options” in the HMM).
   
   Attention: To maintain proper system cooling, do not operate the server for more than two minutes without either a drive or a filler panel installed for each bay.
   
   
2. Remove the defective hard disk drive 1 by placing the handle 2 on the drive to the open position (perpendicular to the drive) and pulling the hot-swap tray from the bay.
3. Remove the hard disk drive from the tray:
   
   
   1. If the drive is a half-high drive, remove the two screws 8 that hold the connector 7 to the hot-swap tray 5; then, remove the connector from the back of the drive.
   2. Remove the four screws 3 (for a half-high drive) or 4 (for a slim-high drive) that attach the drive 6 to the hot-swap tray, and remove the drive from the tray.
      
      
4. Place the new hard disk drive on the hot-swap tray and attach the drive to the tray using four screws, as follows:
   
   
   1. If the drive is a half-high drive, use screws 3 to attach the drive to the tray. If the drive is a slim-high drive, use screws in holes 4 to attach the drive to the tray.
   2. As you tighten each screw, press on the metal spring nearest the screw at the point indicated by the arrow on the illustration.
   3. If the drive is a half-high drive, plug the connector 7 to the back of the drive and secure the connector to the drive with screws 8. (Slim-high drives do not need the connector.)
      
      
5. Install the hard disk drive in the hot-swap bay:
   
   
   1. Ensure the tray handle is open (that is, perpendicular to the drive).
   2. Align the drive/tray assembly so that it engages the guide rails in the bay.
   3. Push the drive assembly into the bay until the drive connects to the backplane.
   4. Push the tray handle to the right until it locks.
      
      
6. Check the hard disk drive status indicators to verify that the hard disk drive is installed properly.
7. Close and lock the server door.