Field Replacement Procedure

Dell EMC Unity ™ Family

Dell EMC Unity All Flash and Unity Hybrid

Replacing a faulted 2U DPE

302-002-585

REV 02

July 2017

This document describes how to replace a faulted 2U DPE in

Unity All Flash and Unity Hybrid systems.

You will remove the faulted 12-slot or 25-slot 2U DPE (disk processor enclosure) and install the replacement DPE, of the same type, from the front of the system. During this procedure you will transfer certain parts from the faulted DPE into the replacement

DPE.

NOTICE

This task on the system involves powering down the SPs. When all SPs are down, all I/O services stop and hosts lose access to the system. Once one or both SPs become available to the system, I/O services to hosts will resume.

WARNING

On a system with Data at Rest Encryption enabled, follow the standard process to replace faulted parts. Improperly removing hardware can cause data to be inaccessible.

Replacing the DPE and both SPs requires a special procedure since the keystore is tied to the hardware. Do not replace all three parts at once, rather retain an SP until the DPE is online before replacing it. If all hardware was replaced, restore the keystore from a backup.

l l l l l l

Before you start

......................................................................................................3

Summary of tasks for replacing a DPE

....................................................................8

Identifying and locating the faulted 2U DPE

.......................................................... 9

Shutting down the enclosure

.................................................................................. 9

Replacing the faulted 2U DPE

............................................................................... 11

Verifying the new 2U DPE

................................................................................... 29

l

Returning a faulted part

............................................................................. 29

Before you start

NOTICE

This task on the system involves powering down the SPs. When all SPs are down, all

I/O services stop and hosts lose access to the system. Once one or both SPs become available to the system, I/O services to hosts will resume.

Before performing this procedure, you should disconnect all network shares and LUNs from each host to prevent data loss. Once the system is fully powered up, you can reconnect the hosts to these storage resources.

WARNING

Pay careful attention when installing SAS cable connectors into the system SAS ports. Improper installation can cause damage to the chassis requiring a complete chassis replacement. If you meet resistance when installing the cable connector into the SAS port, ensure that you are installing the connector in the correct orientation before continuing.

Additional resources

As part of an improvement effort, revisions of the software and hardware are periodically released. Therefore, some functions described in this document might not be supported by all versions of the software or hardware currently in use. The product release notes provide the most up-to-date information on product features. Contact your technical support professional if a product does not function properly or does not function as described in this document.

Where to get help

Support, product, and licensing information can be obtained as follows:

Product information

For product and feature documentation or release notes, go to Unity Technical

Documentation at: www.emc.com/en-us/documentation/unity-family.htm

.

Troubleshooting

For information about products, software updates, licensing, and service, go to Online

Support (registration required) at: https://Support.EMC.com

. After logging in, locate the appropriate Support by Product page.

Technical support

For technical support and service requests, go to Online Support at: https://

Support.EMC.com

. After logging in, locate Create a service request. To open a service request, you must have a valid support agreement. Contact your Sales

Representative for details about obtaining a valid support agreement or to answer any questions about your account.

Special notice conventions used in this document

DANGER

Indicates a hazardous situation which, if not avoided, will result in death or serious injury.

Replacing a faulted 2U DPE 3

Field Replacement Procedure

WARNING

Indicates a hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION

Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

NOTICE

Addresses practices not related to personal injury.

Note

Presents information that is important, but not hazard-related.

Handling replaceable units

This section describes the precautions that you must take and the general procedures that you must follow when removing, installing, and storing any replaceable unit.

Avoiding electrostatic discharge (ESD) damage

When replacing or installing hardware units, you can inadvertently damage the sensitive electronic circuits in the equipment by simply touching them. Electrostatic charge that has accumulated on your body discharges through the circuits. If the air in the work area is very dry, running a humidifier in the work area will help decrease the risk of ESD damage. Follow the procedures below to prevent damage to the equipment.

Be aware of the following requirements: l l l l l l

Provide enough room to work on the equipment.

Clear the work site of any unnecessary materials or materials that naturally build up electrostatic charge, such as foam packaging, foam cups, cellophane wrappers, and similar items.

Do not remove replacement or upgrade units from their antistatic packaging until you are ready to install them.

Before you begin service, gather together the ESD kit and all other materials you will need.

Once servicing begins, avoid moving away from the work site; otherwise, you may build up an electrostatic charge.

Use ESD anti-static gloves or an ESD wristband (with strap).

If using an ESD wristband with a strap: n n n

Attach the clip of the ESD wristband to the ESD bracket or bare metal on a cabinet/rack or enclosure.

Wrap the ESD wristband around your wrist with the metal button against your skin.

If a tester is available, test the wristband.

4 Unity All Flash and Unity Hybrid Field Replacement Procedure

Replacing a faulted 2U DPE l

If an emergency arises and the ESD kit is not available, follow the procedures in

Emergency Procedures (without an ESD kit).

Emergency procedures (without an ESD kit)

In an emergency when an ESD kit is not available, use the following precautions to reduce the possibility of an electrostatic discharge by ensuring that your body and the subassembly are at the same electrostatic potential.

NOTICE

These precautions are not a substitute for the use of an ESD kit. Follow them only in the event of an emergency.

l l l l

Before touching any unit, touch a bare (unpainted) metal surface of the cabinet/ rack or enclosure.

Before removing any unit from its antistatic bag, place one hand firmly on a bare metal surface of the cabinet/rack or enclosure, and at the same time, pick up the unit while it is still sealed in the antistatic bag. Once you have done this, do not move around the room or touch other furnishings, personnel, or surfaces until you have installed the unit.

When you remove a unit from the antistatic bag, avoid touching any electronic components and circuits on it.

If you must move around the room or touch other surfaces before installing a unit, first place the unit back in the antistatic bag. When you are ready again to install the unit, repeat these procedures.

Hardware acclimation times

Systems and components must acclimate to the operating environment before applying power. This requires the unpackaged system or component to reside in the operating environment for up to 16 hours in order to thermally stabilize and prevent condensation.

Refer to the table, Table 1 on page 5, to determine the precise amount of

stabilization time required.

Table 1 Hardware acclimation times (systems and components)

…then let the system or component acclimate in the new environment this many hours:

If the last 24 hours of the

TRANSIT/STORAGE environment was this:

Temperature

Nominal

68-72°F

(20-22°C)

…and the OPERATING environment is this:

Humidity

Nominal

40-55% RH

Nominal 68-72°F (20-22°C)

40-55% RH

Cold

<68°F (20°C)

Dry

<30% RH

<86°F (30°C)

Cold

<68°F (20°C)

Damp

≥30% RH

<86°F (30°C)

0-1 hour

4 hours

4 hours

Handling replaceable units 5

Field Replacement Procedure

Table 1 Hardware acclimation times (systems and components) (continued)

If the last 24 hours of the

TRANSIT/STORAGE environment was this:

Hot

>72°F (22°C)

Hot

>72°F (22°C)

Unknown

Dry

<30% RH

…and the OPERATING environment is this:

<86°F (30°C)

Humid

30-45% RH

Humid

45-60% RH

<86°F (30°C)

<86°F (30°C)

Humid

≥60% RH

<86°F (30°C)

<86°F (30°C)

…then let the system or component acclimate in the new environment this many hours:

4 hours

4 hours

8 hours

16 hours

16 hours

NOTICE l l l

If there are signs of condensation after the recommended acclimation time has passed, allow an additional eight (8) hours to stabilize.

Systems and components must not experience changes in temperature and humidity that are likely to cause condensation to form on or in that system or component. Do not exceed the shipping and storage temperature gradient of

45°F/hr (25°C/hr).

Do NOT apply power to the system for at least the number of hours specified in the table,

Table 1 on page 5. If the last 24 hours of the transit/storage

environment is unknown, then you must allow the system or component 16 hours to stabilize in the new environment.

Removing, installing, or storing replaceable units

Use the following precautions when removing, handling, or storing replaceable units:

CAUTION

Some replaceable units have the majority of their weight in the rear of the component. Ensure that the back end of the replaceable unit is supported while installing or removing it. Dropping a replaceable unit could result in personal injury or damage to the equipment.

NOTICE l l

For a module that must be installed into a slot in an enclosure, examine the rear connectors on the module for any damage before attempting its installation.

A sudden jar, drop, or even a moderate vibration can permanently damage some sensitive replaceable units.

6 Unity All Flash and Unity Hybrid Field Replacement Procedure

Replacing a faulted 2U DPE l l l l l l

Do not remove a faulted replaceable unit until you have the replacement available.

When handling replaceable units, avoid electrostatic discharge (ESD) by wearing

ESD anti-static gloves or an ESD wristband with a strap. For additional information, refer to

Avoiding electrostatic discharge (ESD) damage on page 4.

Avoid touching any exposed electronic components and circuits on the replaceable unit.

Never use excessive force to remove or install a replaceable unit. Take time to read the instructions carefully.

Store a replaceable unit in the antistatic bag and the specially designed shipping container in which you received it. Use the antistatic bag and special shipping container when you need to return the replaceable unit.

Replaceable units must acclimate to the operating environment before applying power. This requires the unpackaged component to reside in the operating environment for up to 16 hours in order to thermally stabilize and prevent condensation. Refer to

Hardware acclimation times on page 5 to ensure the

replaceable unit has thermally stabilized to the operating environment.

NOTICE

Your storage system is designed to be powered on continuously. Most components are hot swappable; that is, you can replace or install these components while the storage system is running. However, the system requires that: l l

Front bezels should always be attached to ensure EMI compliance. Make sure you reattach the bezel after replacing a component.

Each slot should contain a component or filler panel to ensure proper air flow throughout the system.

Unpacking a part

Procedure

1. Wear ESD gloves or attach an ESD wristband to your wrist and the enclosure in which you are installing the part.

2. Unpack the part and place it on a static-free surface.

3. If the part is a replacement for a faulted part, save the packing material to return the faulted part.

Standard touch point colors

Touch points are component locations where you can: l l

Grip the hardware to remove or install a component.

Open or close a latch.

l

Turn a knob to open, close, or adjust a component.

Standard touch point colors are terra-cotta (orange) or blue.

Note

Within this documentation, the color orange is used instead of terra-cotta for simplicity.

Standard touch point colors 7

Field Replacement Procedure

Table 2 Standard touch point colors

Touch point color Description

Terra-cotta

(orange)

This color indicates that you can perform the task, such as remove a component with a terra-cotta (orange) lever, while the system remains powered (up/on).

Note

Some tasks may require additional steps.

Blue This color indicates that a shutdown of the system or component is required before you can perform the task, such as removing a component with a blue lever.

Summary of tasks for replacing a DPE

To replace a DPE, you must complete the tasks below in the order in which they appear. This document provides instructions for completing each task:

1. Identify the faulted enclosure.

2. Shutdown the faulted enclosure.

3. Disconnect the cables from the faulted enclosure.

4. Remove the faulted enclosure's front bezel.

5. Remove the faulted enclosure and place it on a work surface.

6. Unpack the replacement enclosure.

7. Install the replacement enclosure in the cabinet.

8. Transfer the faulted enclosure's components to the replacement enclosure: a. Transfer the storage processor (SP) assemblies.

b. Transfer all the disks and any disk filler modules.

9. Connect the cables to the back of the replacement enclosure.

10. Power up the replacement enclosure.

11. Update the enclosure with the system WWN and serial number.

12. Verify enclosure status.

13. Reinstall the enclosure's front bezel.

14. Verify the operation of the replacement enclosure.

Tools required: l l

Phillips screwdriver

Wire cutters or equivalent

8 Unity All Flash and Unity Hybrid Field Replacement Procedure

Replacing a faulted 2U DPE

Identifying and locating the faulted 2U DPE

Before you replace a faulted 2U DPE , you must locate its placement within the storage system by using Unisphere.

Using Unisphere, locate the faulted 2U DPE in the enclosure.

Procedure

1. In Unisphere, select System View.

2. Select the Enclosures page.

Select the DPE in the Enclosure dropdown menu and select the Front view of the enclosure. Locate the new DPE shown in this enclosure view.

3. Locate the faulted 2U DPE marked orange and displayed in the Enclosure view shown.

Figure 1 Faulted 25-drive DPE - example

Shutting down the enclosure

This system shut down or power down process involves placing both SPs into Service mode before eventually disconnecting the power cords for the power supplies. When all SPs are down, all I/O services stop and hosts lose access to the system.

It is recommended that you disconnect all network shares, LUNs, and VMware datastores from each host to prevent data loss. When the system is fully powered on, you can reconnect the hosts to these storage resources.

Use the procedure that follows to place both SPs into Service mode to safely stop all system processes before you replace the faulted DPE.

Note

See the DC-Powered Unity Enclosures: Installation and operation guide for instructions on how to power down and power up a DC powered system (physical deployments only).

Procedure

1. Collect and record site and system details:

NOTICE

Immediately upon booting the SPs in the replacement enclosure you may need to contact EMC Remote Support to perform certain steps that require root access to the system.

Identifying and locating the faulted 2U DPE 9

Field Replacement Procedure

Service Password

Serial Number

Site ID

OE version

2. Using an SSH/Telnet client, such as PuTTY, type the system IP address and login as the service user.

3. Put both SPs in Service Mode and power off the system:

Issue both of these commands to each SP.

svc_rescue_state -s svc_shutdown --halt-local

Note

This process can take between 10 and 20 minutes to complete. During this time, the connection to the system will be lost and you will not have access to

Unisphere or the online help.

4. Wait until the SP fault LEDs on both storage processors are flashing alternating amber and blue before continuing to the next task.

The SP fault LED flashes alternating amber and blue while the SP remains in

Service mode and is receiving active power.

Figure 2 SP fault LED

5 5

4 4

2 2 3 3

10 Unity All Flash and Unity Hybrid Field Replacement Procedure

Replacing a faulted 2U DPE

Replacing the faulted 2U DPE

Take the following actions to remove the faulted 2U DPE and install the replacement

2U DPE into the system.

Disconnecting cables from the DPE

Procedure

1. Label the two power cords (A or B), release the cable retention bail, and unplug the power cord from the power supply.

NOTICE

To ensure that all write-cache memory is saved (using battery backup power), allow the storage processors to power off completely by waiting sixty seconds after you unplug the power cables. Make sure no LEDs on either SP are lit before continuing.

2. Label and unplug the LAN cables from the management port and all front-end connections.

3. Label each SAS back-end cable and unplug it.

To unplug a SAS cable, pull back the release tab and then pull the cable connector from the port.

4. Label each front-end I/O cable with the SP (A or B), slot number, and the number of the port to which it is connected and then unplug it.

Removing the front bezel

Procedure

1. If the bezel has a lock, insert the key that shipped with your enclosure into the lock, and turn the key to unlock the bezel.

2. Press the two latch buttons on the bezel surface to release the bezel from the cabinet.

3. Pull the bezel off the cabinet and put it on a clean, static-free surface.

Replacing the faulted 2U DPE 11

Field Replacement Procedure

Figure 3 Removing the front bezel

CL5216

Removing the DPE from the cabinet

NOTICE

Do NOT remove parts, such as SP assemblies or disks, from the faulted DPE before removing the enclosure from the cabinet. Doing so greatly increases the risk of returning a component to the wrong slot in the replacement enclosure, which can result in data loss.

12 Unity All Flash and Unity Hybrid Field Replacement Procedure

Replacing a faulted 2U DPE

CAUTION

The enclosure is heavy and should be installed into or removed from a rack by two people. To avoid personal injury and/or damage to the equipment, do not attempt to lift and install the enclosure into a rack without a mechanical lift and/or help from another person.

L’armoire étant lourde, sa mise en place sur une rampe nécessite deux personnes.

Afin de ne pas vous blesser et/ou endommager le matériel, n’essayez pas de soulever et d’installer l’armoire sur une rampe sans avoir recours à un relevage mécanique et/ou à l’aide d’une autre personne.

Das Gehäuse ist schwer und sollte nur von zwei Personen in einem Rack installiert werden. Zur Vermeidung von körperlichen Verletzungen und/oder der

Beschädigung des Gerätes, bitte das Gehäuse nicht ohne die Hilfe einer zweiten

Person anheben und einbauen.

Il contenitore è pesante e dev'essere installato nel rack da due persone. Per evitare danni personali e/o all’apparecchiatura, non tentare di sollevare ed installare in un rack il contenitore senza un sollevatore meccanico e/o l’aiuto di un’altra persona.

Debido a su considerable peso, la instalación del compartimento en el bastidor deben realizarla siempre dos personas. Para evitar daños personales o en el equipo, el compartimento no debe levantarse ni instalarse en el bastidor sin la ayuda de un elevador mecánico o de otra persona.

Procedure

1. Remove the four screws (two per side) that secure the front of the enclosure to the front vertical channels of the cabinet, and save the screws.

Removing the DPE from the cabinet 13

Field Replacement Procedure

Figure 4 Removing the screws that secure the enclosure to the front of the cabinet

CL5754

2. With help from another person, slide the enclosure out of the cabinet and place it on a sturdy, static-free work surface.

Figure 5 Sliding the enclosure out of the cabinet

CL5757

Unpacking a part

Procedure

1. Wear ESD gloves or attach an ESD wristband to your wrist and the enclosure in which you are installing the part.

2. Unpack the part and place it on a static-free surface.

3. If the part is a replacement for a faulted part, save the packing material to return the faulted part.

14 Unity All Flash and Unity Hybrid Field Replacement Procedure

Replacing a faulted 2U DPE

Installing the empty replacement DPE on the rails

CAUTION

The enclosure is heavy and should be installed into or removed from a rack by two people. To avoid personal injury and/or damage to the equipment, do not attempt to lift and install the enclosure into a rack without a mechanical lift and/or help from another person.

L’armoire étant lourde, sa mise en place sur une rampe nécessite deux personnes.

Afin de ne pas vous blesser et/ou endommager le matériel, n’essayez pas de soulever et d’installer l’armoire sur une rampe sans avoir recours à un relevage mécanique et/ou à l’aide d’une autre personne.

Das Gehäuse ist schwer und sollte nur von zwei Personen in einem Rack installiert werden. Zur Vermeidung von körperlichen Verletzungen und/oder der

Beschädigung des Gerätes, bitte das Gehäuse nicht ohne die Hilfe einer zweiten

Person anheben und einbauen.

Il contenitore è pesante e dev'essere installato nel rack da due persone. Per evitare danni personali e/o all’apparecchiatura, non tentare di sollevare ed installare in un rack il contenitore senza un sollevatore meccanico e/o l’aiuto di un’altra persona.

Debido a su considerable peso, la instalación del compartimento en el bastidor deben realizarla siempre dos personas. Para evitar daños personales o en el equipo, el compartimento no debe levantarse ni instalarse en el bastidor sin la ayuda de un elevador mecánico o de otra persona.

Procedure

1. Lift the enclosure and, from the front of the cabinet, slide the enclosure onto the rails.

Installing the empty replacement DPE on the rails 15

Field Replacement Procedure

Figure 6 Sliding the enclosure onto the rails

CL5343

2. Secure the front of the enclosure to the front vertical channels of the cabinet using four screws (two per side) by installing all four screws, and then tightening them.

Figure 7 Securing enclosure to the front of the cabinet

CL5752

Transferring parts from the faulted DPE to the replacement DPE

Use the procedures in this section to transfer the components from the faulted DPE to the corresponding locations in the replacement DPE.

To help ensure the correct placement in the enclosure:

16 Unity All Flash and Unity Hybrid Field Replacement Procedure

Replacing a faulted 2U DPE l l l l l l

Transfer one component at a time.

Transfer power supplies.

Transfer I/O modules and fillers.

Transfer the SP assembly from the A side.

Transfer the SP assembly from the B side.

Transfer each disk and disk filler module to the SAME SLOT LOCATION that it occupied in faulted DPE.

Removing an SP assembly

Procedure

1. Pull the torque limit screw handle out of the SP assembly (1).

2. Turn the handle counterclockwise to release the SP assembly from the enclosure (1).

As the handle is turned, the SP assembly extracts out of the enclosure. When outward movement stops, the SP assembly is ready for removal.

CAUTION

The SP assembly comes completely out of the enclosure. Be prepared to support the SP assembly to avoid dropping it.

Transferring parts from the faulted DPE to the replacement DPE 17

Field Replacement Procedure

Figure 8 Remove an SP assembly

1

2

CL5720

3. Use the handle to pull the SP assembly outward enough to grasp the sides with both hands (2). Then with both hands supporting the SP assembly, pull the SP assembly fully out of the enclosure.

4. Place the SP assembly on a clean static-free work surface.

5. Repeat this procedure to remove the remaining SP assembly.

Installing an SP assembly

NOTICE

You must transfer the SP assembly to the exact corresponding slot in the replacement chassis that it was removed from.

Procedure

1. Align the SP assembly with the enclosure slot and slide it into the slot until it stops.

2. Turn the orange torque limit screw handle clockwise until you hear a click sound from the handle (1). The click sound indicates the torque limit is reached and the SP assembly is seated in the enclosure.

18 Unity All Flash and Unity Hybrid Field Replacement Procedure

Replacing a faulted 2U DPE

3. Push the orange torque limit screw handle into the SP assembly until you hear a click sound from the handle (2). The click sound indicates screw handle is secured in the assembly.

Figure 9 Installing the SP assembly

1

2

CL5721

4. Repeat this procedure to install the remaining SP assembly.

Transferring disks and disk filler modules

Starting with the disk or disk filler module in slot 0, transfer disks and any disk filler modules one at a time from the faulted enclosure to the replacement enclosure.

NOTICE

Make sure to transfer the disks and any disk filler modules to the same slots in the replacement enclosure that they occupied in the faulted enclosure. Installing disks out of their original order results in data unavailability, and possible data loss.

Transfer the 3.5-inch disks and disk fillers

Removing a 3.5" disk

Procedure

1. Attach an ESD wristband to your wrist and the enclosure.

2. Press the orange tab in and pull the ejector handle out (1); do not pull the handle past 45 degrees from the disk (2).

3. slowly pull the disk completely out of the slot (3).

Transferring parts from the faulted DPE to the replacement DPE 19

Field Replacement Procedure

Figure 10 Removing a 3.5" disk

1 2 3

CL5228

4. Place the disk on a static-free surface.

Installing a 3.5" disk

NOTICE

You must transfer the disk to the exact corresponding slot in the replacement chassis that it was removed from.

Procedure

1. Attach an ESD wristband to your wrist and the enclosure in which you are installing the disk.

2. Align the disk with the guides in the slot.

3. Ensure the ejector handle is open at a 45 degree angle from the drive.

4. Gently push the disk into the slot by pressing on the right-most thumb space.

5. Engage the ejector handle to fully seat the disk.

20 Unity All Flash and Unity Hybrid Field Replacement Procedure

Figure 11 Installing a 3.5" disk

1 2 3

Replacing a faulted 2U DPE

1

CL5229

Removing a disk filler module

Procedure

1. Insert your thumb into the cutout on the right side of the disk filler module (2).

2. With your finger push in the latch on the left side of the disk filler module, and pull the module out of the slot.

Figure 12 Removing a disk filler module

2

CL5226

Installing a disk filler

Procedure

1. Insert your thumb into the cutout on the right the disk filler module.

2. With your finger push in the latch on the left of the disk filler module and push the module into the slot until it clicks into place.

Transferring parts from the faulted DPE to the replacement DPE 21

Field Replacement Procedure

Figure 13 Installing a disk filler module

1 2

CL5227

Transfer the 2.5-inch disks and disk fillers

Removing a 2.5" disk

Procedure

1. Attach an ESD wristband to your wrist and the enclosure.

2. Press the orange tab in and pull the ejector handle out (1); do not pull the handle past 45 degrees from the disk (2).

3. slowly pull the disk completely out of the slot (3).

Figure 14 Removing a 2.5" disk

1 2 3

4. Place the disk on a static-free surface.

CL5221

22 Unity All Flash and Unity Hybrid Field Replacement Procedure

Replacing a faulted 2U DPE

Installing a 2.5" disk

NOTICE

You must transfer the disk to the exact corresponding slot in the replacement chassis that it was removed from.

Procedure

1. Attach an ESD wristband to your wrist and the enclosure in which you are installing the disk.

2. Align the disk with the guides in the slot.

3. Ensure the ejector handle is open at a 45 degree angle from the drive.

4. Gently push the disk into the slot by pressing on the right-most thumb space.

5. Engage the ejector handle to fully seat the disk.

Figure 15 Installing a 2.5" disk

1 2 3

CL5222

Removing a disk filler module

Procedure

1. Insert your thumb into the cutout on the right side of the disk filler module (2).

2. With your finger push in the latch on the left side of the disk filler module, and pull the module out of the slot.

Transferring parts from the faulted DPE to the replacement DPE 23

Field Replacement Procedure

Figure 16 Removing a disk filler module

1 2

CL5219

Installing a disk filler

Procedure

1. Insert your thumb into the cutout on the right the disk filler module.

2. With your finger push in the latch on the left of the disk filler module and push the module into the slot until it clicks into place.

Figure 17 Installing a disk filler module

1 2

CL5220

Connecting cables to the replacement DPE

Perform the procedure that follows. Make sure that you consult the labels you added when you removed the cables to ensure that you connect the correct cable to its correct connector.

Procedure

1. Plug each front-end I/O cable into the I/O module port from which you removed it.

24 Unity All Flash and Unity Hybrid Field Replacement Procedure

Replacing a faulted 2U DPE

2. Plug each SAS cable to the SP assembly back-end port from which it was removed.

3. Connect the LAN cables to the management port and front-end connectors.

4. Connect the power cords to the power supplies.

Initiate temporary root user on the system

To gain temporary access on a fully powered on Unity system:

Procedure

1. Use an SSH/Telnet client, such as PuTTY, use the system IP address and login as the service user.

2. Initiate a root session: svc_service_shell l

If root access is available, the service prompt returns:

INFO: Successfully enabled svc_service_shell

The svc_service_shell service tool will expire in:

2 day(s), 7 hour(s), 4 minute(s) and 28 second(s).

--- Start of service shell session ---

*** WARNING *** Unity service shell activated! *** WARNING

*** root@spb:/cores/service> l

Continue to

the next task .

If root access has expired, the service prompt returns:

ERROR: service tool has expired!

Error executing the service-tool. Exiting ...

The root password has expired and must be renewed.

3. Use the svc_inject -k process to renew root access.

a. On the system, generate the current challenge string: svc_inject -k

Current Challenge: 6C57C-54307-ADE7F-02F4D-4FB76-1234 b. From a web-connected device with access to the EMC internal network, go to https://TheHub.corp.emc.com

and launch the Service Key Generator to enter the current challenge string and generate a new service key.

Note

If you do not have access to the EMC network, contact Remote Support for assistance generating the new service key.

If you have not yet added the Service Key Generator to your desktop on The

Hub, enter Service Key Generator in the search bar. From the search

Initiate temporary root user on the system 25

Field Replacement Procedure result, you can add the Service Key Generator to your desktop or launch the it in app mode.

c. Select the Product Release.

d. Select the Challenge String method.

e. Copy the current challenge string to the Service Key Generator, complete the remaining required fields, and then click Generate.

The site generates a response key in the Key Details section.

f. On the system, re-run svc_inject -k and include the generated response key.

svc_inject -k <generated_service_key>

For example: spb:~> svc_inject -k 1D1DC-9B506-351A7-2F08B-BCB14-75DB7-

AC7E3-1234-01

Note

This injects root access to the system. You must still initiate the root session each time you connect via SSH for that particular user Shell session using the svc_service_shell command.

g. Once completed, initiate a root session: svc_service_shell

INFO: Successfully enabled svc_service_shell

The svc_service_shell service tool will expire in:

2 day(s), 7 hour(s), 4 minute(s) and 28 second(s).

--- Start of service shell session ---

*** WARNING *** Unity service shell activated! *** WARNING

*** root@spb:/cores/service>

Continue to the next task

.

Set system values on to the replacement DPE

Before you begin

The storage processors should be booted into service mode in the replacement DPE.

While the storage processors are in service mode, set the system values on the replacement DPE:

Procedure

1. As root, run on one of the SPs, fix the serial numbers on the replacement DPE.

sptool -fixserialnumber

2. As root, update the WWN seed on the replacement chassis to the value from the previous DPE: svc_change_hw_config -c -update_wwn_seed

26 Unity All Flash and Unity Hybrid Field Replacement Procedure

Replacing a faulted 2U DPE

3. After the command completes, exit the root user session.

4. As the service user, clear the counters and restart both SPs into normal mode:

Issue both of these commands to each SP.

svc_rescue_state -c svc_shutdown -r

Verifying the DPE status

Procedure

1. Verify that the DPE power LED is lit and that no fault lights on the DPE parts are lit.

2. If a disk, power, or SP assembly part displays a fault LED, try re-seating the part.

Transferring the product serial number tag

The product serial number tag (PSNT) is a serialized label allowing EMC service to track nested hardware material in the field. When replacing a DPE, transfer the PSNT of the faulted DPE to the replacement DPE.

The PSNT for the DPE is a pull-out tag that is located on the front of the enclosure.

Note

Two rear tabs on the tag secure it in the enclosure and allow in to slide. If you find it difficult to remove or insert the tag, pinch the rear of the tag together as you attempt to remove or insert it.

Procedure

1. Remove and retain the PSNT (product serial number tag) from the faulted DPE.

Retain this tag, you will insert this into the replacement DPE.

l

For the 12-slot DPE, pivot the tag from left-to-right to remove the tag from the DPE.

Figure 18 12-slot DPE tag location

1

: F

NM0123456789

ON

)

PR

OD

ID

/SN

PN

: 123-456

-789 (O

PR

OD

ID

/SN

34

56

91

N)

: FN

M0

-78

9 (O

BERO

PN:

12 3-4

56

CL5779

Figure 19 25-drive DPE tag location l

For the 25-slot DPE, pivot the tag from top-to-bottom to remove the tag from the DPE.

Verifying the DPE status 27

Field Replacement Procedure

Figure 20 25-drive DPE tag location

234567

PR

OD

/SN

ID

: F

NM01

(OBE

789

23-

456-

RON)

PN: 1

891

FNM01

PRO

D

ID/SN:

6-7

89

(OB

ERO

N)

PN

: 1

45

67

89

1

CL5780

2. Repeat this process to remove the tag from the replacement DPE.

This tag can be discarded.

3. Insert the tag removed from the faulted DPE into the replacement DPE.

Place one side of the tag into the tag slot and then, as you apply slight pressure, the other to insert the tag into the replacement DPE.

Installing the front bezel

Procedure

1. Align the bezel with the enclosure.

2. Gently push the bezel into place on the cabinet until it latches.

3. If the bezel has a lock, insert the key that shipped with your enclosure into the lock, and turn the key to lock the bezel.

Figure 21 Installing the front bezel

28 Unity All Flash and Unity Hybrid Field Replacement Procedure

CL5217

Replacing a faulted 2U DPE

Verifying the new 2U DPE

Verify that the new 2U DPE is recognized by your system, and operating correctly using the procedure that follows.

Procedure

1. In Unisphere, select System View.

2. On the Summary page, confirm that the system status is OK.

3. Select the Enclosures page.

4. Verify that the 2U DPE appears with OK status in the enclosure view.

You may need to refresh Unisphere by clicking on the refresh icon next to the

Enclosures view.

Select the DPE in the Enclosure dropdown menu and select the Front view of the enclosure. Locate the new DPE shown in this enclosure view.

Figure 22 Healthy 25-drive DPE - example

If the system health monitor shows the part as faulted, contact your service provider.

Returning a faulted part

We appreciate the return of defective material within 5 business days (for US returns). For International customers, please return defective material within 5-10 business days. All instructions and material required to return your defective part were supplied with your good part shipment.

Procedure

1. Package the faulted part in the shipping box that contained the replacement part, and seal the box.

2. Ship the failed part to your service provider as described in the instructions that were included with the replacement part.

3. (Optional) For more information about returning customer-replaceable parts, from Unisphere, click Support > Replace Disk Drives, Power Supplies, and

Other Parts > Return a Part to display the part return instructions.

If your screen does not show the Return a Part option, contact your service provider for instructions on what to do next.

Verifying the new 2U DPE 29

Field Replacement Procedure

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Published July 2017

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THE INFORMATION IN THIS PUBLICATION IS PROVIDED “AS-IS.“ DELL MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WITH

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Published in the USA.

30 Unity All Flash and Unity Hybrid Field Replacement Procedure