4 Servicing Hot-Swap Components

This chapter describes how to remove and replace the hot-swappable components in Oracle Database Appliance. Storage drives and power supplies are housed in the system chassis. Boot drives and fans are housed in the server nodes (also called system controllers).

The following topics are covered:

• Hot-Swappable Components

• Servicing Storage Drives and Boot Drives

• Servicing Fan Modules

• Servicing Power Supplies

Hot-Swappable Components

Hot-swappable components are those that can be removed and installed while the system and the server nodes are running without requiring any administrative tasks.

In Oracle Database Appliance, the following devices are hot-swappable:

• Storage and Boot Drives. See Servicing Storage Drives and Boot Drives.

• Fan modules. See Servicing Fan Modules.

• Power supplies. See Servicing Power Supplies.

Servicing Storage Drives and Boot Drives

The system has 24 storage drives, located in the front of the chassis, and each server node has 2 boot drives, located in the rear. All storage drives and boot drives are hot-swappable.

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Caution - Equipment damage. Close the door after removing a boot drive to prevent overheating due to improper airflow.

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See Storage and Boot Drive Status LED Reference for specific information about drive status LEDs.

This section includes:

• Storage and Boot Drive Locations

• Storage and Boot Drive Status LED Reference

• Remove Storage Drive (CRU)

• Install Storage Drive (CRU)

• Remove Boot Drive (CRU)

• Install Boot Drive (CRU)

Storage and Boot Drive Locations

The following figure shows the physical storage drive locations in the front of Oracle Database Appliance.

The following table shows slot numbering and the type of the storage drive supported in each slot.

Table 12 - Storage Drive Types Supported and Drive Slot Numbering

Drive Slot Numbers and Types Supported Drive Slot Numbers and Types Supported Drive Slot Numbers and Types Supported Drive Slot Numbers and Types Supported SSD20 SSD21 SSD22 SSD23 HDD16 HDD17 HDD18 HDD19 HDD12 HDD13 HDD14 HDD15 HDD8 HDD9 HDD10 HDD11 HDD4 HDD5 HDD6 HDD7 HDD0 HDD1 HDD2 HDD3

The following figure shows the physical boot drive locations in the rear of Oracle Database Appliance.

The following table shows the location and numbering of the boot drives.

Table 13 - Boot Disk Drives Locations and Numbering

Legend Server Node (SN) Number Drive Locations 1 SN1 Rear Boot Drives MB/RHDD1 MB/RHDD0 2 SN0 Rear boot Drives MB/RHDD1 MB/RHDD0

Disk Drives and Disk Drive Brackets

The drives for your system are shipped in brackets designed to fit in the system's drive bays. While all the brackets look the same, the drives in the brackets might look different. For example, Hard Disk Drives (HDDs) look different from Solid State Drives (SSDs).

In some SSDs, the SSD itself is noticeably smaller than the space inside the bracket. For example, the following figure shows a bracket containing a 2.5 inch SSD:

Figure Legend 1 Bracket 2 SSD

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Caution - Equipment damage. Do not attempt to remove the drive from the bracket.

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Storage and Boot Drive Status LED Reference

The following figure shows the boot drive status LEDs; the storage drives have the same status LEDs. See the following table for a description of the status LEDs. For more information on these LEDs, see Storage and Boot Drive Status LED Reference.

Table 14 - Storage and Boot Drive Status LED Descriptions

Legend LED Symbol Color Lights When... 1 Ready to Remove Blue A storage or boot drive can be removed safely during a hot-swap operation. 2 Service Required Amber The system is running and the drive is faulty. The front and rear panel Service Required LEDs are also lit if the system detects a drive fault. 3 OK/Activity Green On – The drive is installed and recognized by the system but there is no drive activity. Blink – LED blinks randomly in response to data being written to or read from the drive. OFF – The drive is powered off or the installed drive is not recognized by the system.

Remove Storage Drive (CRU)

1. Identify the storage drive that you want to remove.

   The amber Service Required LED might be lit. For specific drive locations, see Server Node General Status Indicators.

2. Remove a storage drive.
   1. On the drive you plan to remove, push the storage drive release button to open the latch [1].
   2. Grasp the latch and open it to a 45 degree angle [2].
   3. Using the latch, slowly pull the drive straight out of the drive slot, not sideways or vertically.

      Do not use much force on the latch when removing the drive.

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      Caution - Equipment damage. Do not use the latch as an ejector. Do not bend it too far to the right.

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      Caution - Equipment damage. Always replace a drive with another drive to maintain proper airflow.

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Install Storage Drive (CRU)

1. Determine the drive slot location for the replacement drive.

   Drives are physically addressed according to the slot in which they are installed. See Storage and Boot Drive Locations for drive locations.

2. Slide the drive into the drive slot until it is fully seated.
   
3. Close the latch to lock the drive in place.
4. Run the fwupdate command and verify that it lists all the disks under the DISKS section.

Remove Boot Drive (CRU)

1. Identify the boot drive that you want to remove.

   The amber Service Required LED might be lit. For specific drive locations, see Storage and Boot Drive Locations.

2. Remove the boot drive.
   1. To open the drive door, slide the latch to the left.
   2. Pull the door open [2].
   3. On the drive you plan to remove, push the storage drive release button to open the latch [2].
   4. Grasp the latch and open it to a 45 degree angle [2].
   5. Using the latch, slowly pull the drive straight out of the drive slot, not sideways or vertically [2].

      Do not use much force on the latch when removing the drive.

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      Caution - Equipment damage. Do not use the latch as an ejector. Do not bend it too far to the right.

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      Caution - Equipment damage. Close the door after removing a boot drive to prevent overheating due to improper airflow.

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Install Boot Drive (CRU)

1. Determine the drive slot location for the replacement drive.

   Drives are physically addressed according to the slot in which they are installed. See Storage and Boot Drive Locations for drive locations.

2. Slide the drive into the drive slot until it is fully seated [1].
   
3. Close the drive latch to lock the drive in place.
4. Close the drive door and ensure that the door latch engages [2].

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   Caution - Equipment damage. Close the door after removing a boot drive to prevent overheating due to improper airflow.

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5. Run the following command to ensure that the OS sees the replacement disk.

   # lsscsi -v | grep ATA
   [0:0:0:0]    disk    ATA      SEAGATE ST95001N n/a   /dev/sda
   [1:0:0:0]    disk    ATA      SEAGATE ST95001N n/a   /dev/sdb 

Servicing Fan Modules

The following topics are covered in this section:

• About System Fans

• Fan Module LED Reference

• Detecting Fan Module Failure

• Remove Fan Module (CRU)

• Install Fan Module (CRU)

About System Fans

Each server node contains two fan modules. Each fan module contains a single, dual-motor, 80 mm, counter-rotating fan assembly that contains two fans. Each fan module is hot-swappable.

When a server node is removed from the system, the fans provide sufficient cooling for all 24 front disks and the server node. A door automatically closes off the vacant server node slot to ensure proper cooling. When the server node is replaced, its two fans also cool the 24 front disks and provide cooling to the second server node.

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Caution - Equipment damage. If a fan module fails, replace it as soon as possible.

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Fan Module LED Reference

Each fan module contains a single, bicolored LED that indicates fan fault status. This LED is visible from the rear of the server node. For a description of the fan LEDs, see Server Node Fan LEDs.

See Server Node General Status Indicators for more information about system status LEDs.

Detecting Fan Module Failure

The following LEDs are lit when a fan module fault is detected:

• Front and rear Service Required LEDs located on each server node

• REAR HDD/PS/FAN LED located on the front of each server node

• Fan Fault Status LED located on the faulty fan module

The system Overtemperature LED for a server node might light if a fan fault causes an increase in server node operating temperature. See Server Node General Status Indicators for more information about server node LEDs.

Remove Fan Module (CRU)

1. Identify the faulty fan module with its amber LED.

   A Fan Fault Status LED is located on each fan module as shown in the previous figure. When a fan fails, the LED lights amber, indicating that service is required.

2. To remove the faulty fan module, press down on the fan release lever [1].
3. While holding the release lever down, use the handle on the fan module to pull it out of the server node [2].

   The fan door swings shut to ensure proper cooling.

   

Install Fan Module (CRU)

1. Align the fan module in the fan door and slide it into the server node.

   The extender on the side of the fan module pushes the fan door open, allowing the fan module to enter.

2. Apply firm pressure to fully seat the fan module.

   The fan release lever engages when the fan is fully seated.

   
3. Verify that the Fan Fault Status LED on the replacement fan module is lit green.
4. Verify that the following fault LEDs on the applicable server node are off.
   • Front and rear Service Required LEDs located on the applicable server node
   • REAR HDD/PS/FAN LED located on the front of the applicable server node

   See Server Node General Status Indicators for more information about system LEDs.

Servicing Power Supplies

Your system is equipped with two hot swappable power supplies. They are redundant, meaning that the system can operate with a single power supply. This allows you to remove and replace a power supply without shutting the system down.

If a power supply fails and you do not have a replacement available, to ensure proper airflow, leave the failed power supply installed in the system.

See Power Supply LEDs for information about power supply status LEDs.

This section includes:

• Detecting Power Supply Failure

• Power Supply LED Reference

• Remove Power Supply (CRU)

• Install Power Supply (CRU)

Detecting Power Supply Failure

The following LEDs light up when the system detects a power supply fault:

• Front and rear Service Required LEDs located on each server node

• REAR HDD/PS/FAN LED located on the front of each server node

• Service Required LED located on the faulty power supply

See Server Node General Status Indicators on page 1-6 for information about these LEDs.

Power Supply LED Reference

LEDs on the power supply provide information about its status.

Table 15 - Power Supply Status LEDs

Legend LED Symbol Color Lights When... 1 OK Green DC power is available. The power supply is producing DC power within specifications. 2 Service Required Amber The power supply is faulty. The front REAR PS LED and the front and rear panel Service Required LEDs are also lit if the system detects a power supply fault. 3 AC Present               ~AC Green The power supply is plugged in and AC power is available, regardless of system power state.

Remove Power Supply (CRU)

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Caution - Hazardous voltages. To reduce the risk of electric shock and danger to personal health, follow the instructions.

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1. Identify which power supply (0 or 1) requires replacement.

   A lit Service Required LED on a power supply indicates that a failure was detected.

2. Disconnect the power cord from the faulty power supply.
3. Grasp the power supply handle and press the release latch [1]).
4. Pull the power supply out of the chassis [2].
   

Install Power Supply (CRU)

1. Align the replacement power supply with the empty power supply chassis bay.
2. Slide the power supply into the bay until it is fully seated.

   The release latch engages when the power supply is fully seated.

   
3. Reconnect the power cord to the power supply.

   Verify that the AC Present LED on the power supply is lit.

   Verify that the Service Required LED on the power supply is off.

4. Verify that the following LEDs are off:
   • Service Required LEDs located on the front of both server nodes
   • REAR HDD/PS/FAN LED located on the front of both server nodes

   See Storage and Boot Drive Locations for more information about system LEDs.