Hardware Maintenance
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Table of Contents Preface ..................................................................................................................v Audience ..........................................................................................................v Organization ....................................................................................................v Documentation ...............................................................................................
PS6000 Hardware Maintenance Table of Contents 3. Inserting the Micro SD Card.................................................................. 3-15 4 Maintaining Power Supply Modules............................................................ 4-1 Interpreting the LEDs................................................................................... 4-1 Identifying Failures ......................................................................................
Preface This manual describes how to maintain the hardware for PS6000 storage arrays. Each array contains hot-swappable power supply and cooling modules, eight or sixteen RAID-protected disks, and dual hot-swappable control modules. With one or more PS Series arrays, you can create a PS Series group—a selfmanaging, iSCSI storage area network (SAN) that is affordable and easy to use, regardless of scale. Audience This manual is designed for the administrators responsible for maintaining PS6000 hardware.
PS6000 Hardware Maintenance • Preface Appendix A, Environmental, Power, and Other Specifications, describes the specifications for a PS6000 array. Documentation For detailed information about PS Series arrays, groups, and volumes, see the following documentation: • Release Notes. Provides the latest information about PS Series arrays. • Installation and Setup. Describes how to set up the array hardware and create a PS Series group. Use the manual specific to your array model.
PS6000 Hardware Maintenance Preface Contacting Dell Dell provides several online and telephone-based support and service options. Availability varies by country and product, and some services may not be available in your area. For customers in the United States, call 800-945-3355. Note: If you do not have an Internet connection, you can find contact information on your purchase invoice, packing slip, bill, or Dell product catalog.
PS6000 Hardware Maintenance Preface Warranty Information The PS6000 array warranty is included in the shipping box. For information about registering a warranty, visit support.dell.com/EqualLogic.
1 Basic Storage Array Information This chapter includes basic information about PS6000 storage arrays. Array Front and Back Panels The front and back panels of a PS6000 array are shown in the following figures. Figure 1-1: PS6000 Front Panel The disk drives are accessible from the front. See Chapter 2 for detailed information about disk drives. The components on the back of a PS6000 are shown in Figure 1-2 and described in Table 1-1.
PS6000 Hardware Maintenance Basic Array Information Figure 1-2: PS6000 Back Panel Table 1-1: Back Panel Detail Description Part Description Power supply and cooling modules. From left to right, they are numbered 1 and 0. Control modules. From left to right, they are numbered 1 and 0. Operation panel LED. Includes LEDs that show the status of the array (error and warning conditions), power status, and location. Power switches on the power supply and cooling modules. Turns power on and off to the array.
PS6000 Hardware Maintenance Basic Array Information Figure 1-3 shows the operations panel LEDs, which can alert you to errors and conditions that require your attention. Table 1-2 describes the LEDs. Report any serious problems to your array support provider. For information about other array LEDs, see Interpreting Disk LEDs on page 2-2, Interpreting Control Module LEDs on page 3-2, and Interpreting the LEDs on page 4-1.
PS6000 Hardware Maintenance Basic Array Information Table 1-2: Operations Panel Descriptions (Continued) Item Warning condition LED Status Description Off No power or normal condition. Flashing orange One or more of the following has occurred: • RAID set is degraded but still functioning. • RAID set (volume level) has lost blocks. • Component temperature is near a limit. • Fan failed or fan RPMs exceed limit. • Power supply is not installed or has no power.
PS6000 Hardware Maintenance Basic Array Information Table 1-2: Operations Panel Descriptions (Continued) Item Serial number label Status Description N/A This label contains the serial number for your array. If you contact your PS Series support provider, you may need to provide this number. Using an Electrostatic Wrist Strap When handling the array chassis, disks, or control modules, you must use an electrostatic protection device to prevent electrostatic discharge.
2 Maintaining Disks A PS6000 array includes up to 16 hot-swappable disks, either Serial Attached SCSI (SAS) disks or Serial ATA (SATA) disks. Disk maintenance topics apply to both SAS and SATA disks. Removing the Bezel To access the disks in a PS6000, you must remove the bezel. The bezel comes with a lock, which helps protect the disks from being tampered with or accidentally removed. To unlock and remove the bezel: 1. Insert the bezel key and turn it clockwise to unlock the bezel. See Figure 2-1.
PS6000 Hardware Maintenance Maintaining Disks 3. Hold the bezel and pull it away from the chassis. See Figure 2-3. Figure 2-3: Detaching the Bezel from the Chassis Interpreting Disk LEDs Figure 2-4 shows how disks are oriented and numbered in a PS6000 array. Figure 2-4: PS6000 Disk Numbering The parts of a disk drive are shown in Figure 2-5 and described in Table 2-1.
PS6000 Hardware Maintenance Maintaining Disks Figure 2-5: Disk Drive Detail Table 2-1: Disk Detail Descriptions Callout Disk handle release button Color Description Black SAS disk. Gray SATA disk. Gray Same for SAS and SATA disks. Off No power or an error condition. Green Power. Flashing green Disk activity. Off No power or normal condition. Red Error condition.
PS6000 Hardware Maintenance Maintaining Disks Disk Handling Requirements Handle disks as follows: • Store disks properly. Store replacement disks in the packaging in which they were shipped. Do not stack disks or place anything on top of a disk. • Protect disks from electrostatic discharge. Wear an electrostatic wrist strap when handling a disk, unless it is protected from electrostatic discharge. • Handle disks carefully. Hold a disk only by the plastic part of the carrier or the handle.
PS6000 Hardware Maintenance Maintaining Disks For example: • If a spare disk is available, it replaces the failed disk. Performance is normal after reconstruction completes. • If a spare disk is not available and the failed disk is in a RAIDset with no previous disk failure, the RAIDset becomes degraded. Performance may be impaired. • If a spare disk is not available and the failed disk is in a RAIDset that is already degraded, data may be lost and must be recovered from a backup.
PS6000 Hardware Maintenance Maintaining Disks Figure 2-6: Removing a Disk 3. Wait 30 seconds to allow the heads to land. (Does not apply when removing a blank carrier.) 4. Pull the disk further from the slot and re-engage the handle. You will hear a click. Then, pull the disk completely out of the array. Installing Disks Caution: Wear electrostatic protection when handling a disk. See Using an Electrostatic Wrist Strap on page 1-5.
PS6000 Hardware Maintenance Maintaining Disks • Make sure to insert a disk fully in the chassis before pushing in the handle. • When correctly installed, a disk will be level with the front of the array. If the disk is protruding from the array, reinstall the disk. • After installation, make sure the disk power LED (top) is green or flashing green. • There is a two-minute delay between the time you insert a disk and the time the disk is automatically configured into a RAIDset.
PS6000 Hardware Maintenance Maintaining Disks Figure 2-7: Closing the Disk Handle Verify that the new disk is operational by examining the LEDs on the front panel, as described in Interpreting Disk LEDs on page 2-2. In addition, the GUI Member Disks window and the CLI member select show disks command output should show that the new disk is operational. Installing the Bezel After you install all the replacement disks or blanks, re-install and lock the bezel. 1.
3 Maintaining Control Modules A PS6000 array includes two hot-swappable control modules. One functioning control module is required for array operation. You access control modules from the rear of the array. Each control module includes multiple Ethernet ports, a serial connector (for use if there is no network access to the array), and a field-replaceable micro SD card (running PS Series firmware). Cache and NVRAM batteries are not field replaceable.
PS6000 Hardware Maintenance Maintaining Control Modules Interpreting Control Module LEDs Control modules have the following LEDs: • On the left side of each control module, three LEDs enable you to determine the control module status and whether the control module is active or secondary. See Figure 3-1. • Each Ethernet port has two LEDs that show the network interface status. See Figure 3-1. Control module LEDs are described in Table 3-1. Ethernet port LEDs are described in Table 3-2.
PS6000 Hardware Maintenance Maintaining Control Modules Table 3-2: Ethernet Port LED Descriptions LED Location Color Description Left side of each port. Off No power or not connected to network. Green Connected to network. Off No power, not transmitting, or not receiving. Green Transmitting or receiving. Right side of each port. Identifying Control Module Failures You can identify a failure in a control module by: • LEDs. See Interpreting Control Module LEDs on page 3-2. • Messages.
PS6000 Hardware Maintenance Maintaining Control Modules Each control module has four ports: Ethernet 0, Ethernet 1, Ethernet 2, and Ethernet 3. The active control module can use a network interface only if there is a cable connected to the port on the active control module. Therefore, you should connect a cable to the network interface port on each control module to make sure that both control modules can access an interface.
PS6000 Hardware Maintenance Maintaining Control Modules To display the firmware version running on an array, examine the GUI Member Controllers window or use the CLI member select show controllers command. If the firmware on a micro SD card does not match the firmware running on an array, do not install it. Instead, contact your array support provider. Network Configuration Recommendations Dell recommends that you follow the guidelines in the table shown next.
PS6000 Hardware Maintenance Maintaining Control Modules Table 3-3: Network Recommendations (Continued) Recommendation Description No STP functionality on switch ports that connect end nodes If possible, do not use Spanning-Tree (STP) on switch ports that connect end nodes (iSCSI initiators or storage array network interfaces).
PS6000 Hardware Maintenance Maintaining Control Modules • Connect interfaces to different network switches. • At a minimum, connect network cables to Ethernet 0 on both control modules and then connect the cables to a network switch. See Figure 3-2. Figure 3-2: Minimum Network Configuration Although this configuration protects against control module failover, it is still a potential point of failure (for example, if the network cable connected to the active control module is disconnected).
PS6000 Hardware Maintenance Maintaining Control Modules Figure 3-3: Recommended Network Configuration Control Module Handling Requirements Follow these control module handling requirements: • Protect control modules from electrostatic discharge. Always wear an electrostatic wrist strap when handling a control module, as described in Using an Electrostatic Wrist Strap on page 1-5.
PS6000 Hardware Maintenance Maintaining Control Modules You may need to temporarily remove a control module to replace a micro SD card. Notes: For proper cooling, do not leave a control module slot empty. If an array will operate for a long time with only one control module, you must install a blank control module in the empty slot. You can order a blank control module from your PS Series array service provider.
PS6000 Hardware Maintenance Maintaining Control Modules Figure 3-4: Opening a Control Module Latch 2. Hold the latches and carefully slide the control module from the slot. See Figure 3-5.
PS6000 Hardware Maintenance Maintaining Control Modules Figure 3-5: Removing a Control Module 3. Place the control module on a flat surface where it will be protected from electrostatic charge. Caution: To avoid damage, do not place anything on top of the control module. 4. If you are replacing a failed control module, remove the micro SD card from the failed control module as described in Replacing the Micro SD Card on page 3-14 and install it in the replacement control module.
PS6000 Hardware Maintenance Maintaining Control Modules Before installing a control module, make sure the firmware on the control module’s compact flash card matches the firmware running on the functioning control module. See Maintaining Control Module Firmware on page 3-4. Control modules are installed vertically in a PS6000 array, oriented as shown in Figure 3-6. Figure 3-6: Correct Control Module Orientation Caution: Wear electrostatic protection when handling a control module.
PS6000 Hardware Maintenance Maintaining Control Modules Figure 3-7: Installing a Control Module 5. Connect the network cables as described in Connecting Network Cables on page 3-6. 6. If the array was shut down, turn on power to the array. 7. Examine the LEDs, as described in Interpreting Control Module LEDs on page 3-2. Also, check the GUI Member Controllers window or run the CLI member select show controllers command.
PS6000 Hardware Maintenance Maintaining Control Modules policy when the battery is fully charged. See the PS Series Group Administration manual for information about cache policies. Replacing the Micro SD Card Each control module includes a micro SD card running the PS Series array firmware. If a control module fails, remove the micro SD card from the failed control module and install the card in the replacement control module.
PS6000 Hardware Maintenance Maintaining Control Modules Figure 3-8: Ejecting the Micro SD Card 2. Gently pull the card straight out of the housing. 3. Place the micro SD card on a flat surface where it will be protected from electrostatic charge. Inserting the Micro SD Card 1. Align the replacement micro SD card so the arrow on the card points towards the housing. See Figure 3-9. 2. Firmly press the card into the housing until it clicks into place. Make sure you cannot pull it out.
PS6000 Hardware Maintenance Maintaining Control Modules Figure 3-9: Inserting the Micro SD Card 3. Install the control module. See Installing a Control Module on page 3-11. After you replace the micro SD card, make sure the control module is operational. See Interpreting Control Module LEDs on page 3-2.
4 Maintaining Power Supply Modules A PS6000 array includes two hot-swappable, combination power supply and cooling modules. Interpreting the LEDs Use the power supply and cooling module LEDs, shown in Figure 4-1 and described in Table 4-1, to determine the module status and identify problems. The power supply and cooling module LEDs show the power, fan, and array status.
PS6000 Hardware Maintenance • Maintaining Power Supply Modules Group Manager GUI and CLI output. The GUI Member Enclosure window or the CLI member select show enclosure command shows a power supply and cooling module failure.
PS6000 Hardware Maintenance Maintaining Power Supply Modules Figure 4-2: Releasing the Handle 4. Hold the handle and pull the module from the slot. See Figure 4-3. Caution: The module is heavy; support it with two hands. Figure 4-3: Removing a Power Supply and Cooling Module Installing a Power Supply and Cooling Module Caution: The module is heavy; support it with two hands.
PS6000 Hardware Maintenance Maintaining Power Supply Modules To install a power supply and cooling module in an array: 1. Attach an electrostatic wrist strap, as described in Using an Electrostatic Wrist Strap on page 1-5. 2. See Figure 4-2. Squeeze the latches inward ( rotate the handle upward ( ). ) to release the handle and then 3. Hold the handle and slide the module into the slot, until you feel resistance. See Figure 4-3. Figure 4-4: Installing a Power Supply and Cooling Module 4.
PS6000 Hardware Maintenance Maintaining Power Supply Modules Note: If you need to reverse the cable strain relief wire for your power cable configuration, press the wire ends together as shown in Figure 4-5 to disengage the wire from the power plug socket. Reverse the wire and reattach it to the socket. Figure 4-5: Using the Cable Strain Relief 7. Turn on power to the power supply and cooling module. Initialization generally takes from one to ten seconds.
A Environmental, Power, and Other Specifications Table A-2 describes the environmental, power, and physical specifications for a PS6000 array. Table A-2: PS6000 Array Specifications Component Requirement Weight of fully-loaded array 35 kg (77.
Index A array back panel 1-2 batteries 3-1 control module restriction 3-11 control modules 3-1 cooling 4-1 disk types 2-3 environmental requirements A-1 failure indications 1-3 fans 4-1 firmware 3-4 front panel 1-1 LEDs 1-3, 2-2, 3-2, 4-1 maximum network availability 3-7 maximum network bandwidth 3-7 minimum network configuration 3-6 network connection guidelines 3-5 power supplies 4-1 protecting from discharge 1-5 serial number 1-2, 1-5 shutdown procedure 1-5 specifications A-1 B batteries charging 3-13 s
PS5000 Hardware Maintenance removing from array 2-5 SAS 2-1 SATA 2-1 types 2-1 verifying operational status 2-8 E electrostatic protection, using 1-5 environmental requirements A-1 F failover control module 3-3, 3-4 network connection 3-4 failure indications array 1-3 control modules 3-3 cooling 4-1 disks 2-4 power 4-1 fans failure indications 4-1 initialization 4-5 installing module in array 4-4 LEDs 4-1 locating modules 4-2 maintaining 4-1 removing module from array 4-2 verifying operational status 4-5
PS5000 Hardware Maintenance Index O S operations panel LEDs 1-2 servicing 1-2 SAS disks identifying 2-3 supported control module 3-1 SATA disks identifying 2-3 supported control module 3-1 serial number label 1-2, 1-5 shutting down an array 1-5 Spanning-Tree recommendation 3-6 specifications, array A-1 status control modules 3-3 switches, recommendations Flow Control 3-6 Jumbo Frames 3-6 Spanning-Tree 3-6 unicast storm control 3-6 VLAN 3-6 P physical requirements A-1 power cables restriction 4-4 power
