路坦力固态硬盘更换

Boot/Metadata Drive Replacement

(Single SSD Platforms)

Acropolis 5.1

NX-1000/NX-6000/SX-1065-G5 Series

27-Apr-2017

Notice

Copyright

Copyright 2017 Nutanix, Inc.

Nutanix, Inc.

1740 Technology Drive, Suite 150

San Jo, CA 95110

All rights rerved. This product is protected by U.S. and international copyright and intellectual property

laws. Nutanix is a trademark of Nutanix, Inc. in the United States and/or other jurisdictions. All other marks

and names mentioned herein may be trademarks of their respective companies.

Licen

The provision of this software to you does not grant any licens or other rights under any Microsoft

patents with respect to anything other than the file rver implementation portion of the binaries for this

software, including no licens or any other rights in any hardware or any devices or software that are ud

to communicate with or in connection with this software.

Conventions

ConventionDescription

variable_valueThe action depends on a value that is unique to your environment.

ncli> command

ur@host$ command

root@host# command

> command

output

The commands are executed in the Nutanix nCLI.

The commands are executed as a non-privileged ur (such as nutanix)

in the system shell.

The commands are executed as the root ur in the vSphere or Acropolis

host shell.

The commands are executed in the Hyper-V host shell.

The information is displayed as output from a command or in a log file.

Default Cluster Credentials

InterfaceTargetUrnamePassword

Nutanix web consoleNutanix Controller VMadminNutanix/4u

vSphere Web ClientESXi hostrootnutanix/4u

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InterfaceTargetUrnamePassword

vSphere clientESXi hostrootnutanix/4u

SSH client or consoleESXi hostrootnutanix/4u

SSH client or consoleAHV hostrootnutanix/4u

SSH client or consoleHyper-V hostAdministratornutanix/4u

SSH clientNutanix Controller VMnutanixnutanix/4u

SSH clientNutanix Controller VMadminNutanix/4u

IPMI web interface or Nutanix nodeADMINADMIN

ipmitool

SSH client or consoleAcropolis OpenStackrootadmin

Services VM (Nutanix

OVM)

Version

Last modified: April 27, 2017 (2017-04-27 23:37:10 GMT-7)

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Controller VM Boot Drive Replacement

Overview

This document describes how to replace hardware components in a Nutanix block.

Tools and supplies required:

•Antistatic wrist strap

•Phillips screwdriver (#2)

Warning:

•All rvicing must be done by a qualified rvice technician. During the procedure, wear

a grounding wrist strap to avoid ESD damage to the component or system. Handle all

components with care: place them on soft, static-free surfaces.

Coordinate rvice with the customer for any operation that involves the hypervisor host (ESXi,•

Hyper-V or AHV), virtual machines, or Nutanix software.

If you have locked down the cluster or hypervisor, you must enable ssh access again. See the•

Cluster Access Control topic in the Web Console Guide.

Return failed components to Nutanix. Follow the instructions provided on the box for the replacement

parts. If the instructions are missing or you have other questions, call the Nutanix returns department at

1-866-884-7958 in the US, or +1-508-623-1040 international.

Note: Nutanix does not provide a warranty or support rvices with respect to non-Nutanix

components, and any problems arising from your u of such non-Nutanix com书香门第打一字 ponents are

expressly excluded from the Nutanix warranty and suppo感恩散文 rt terms. If you replace or modify Nutanix

components or install non-Nutanix components you do so at your risk.

SSD Boot Drive Failure (Single SSD Platforms)

Each node in a block has an SSD drive as the boot drive. This drive also contains cluster metadata. If the

boot drive in a node fails, the Controller VM is unavailable until you repair the failed drive.

Indications

•The Controller VM is unavailable.

•The red LED on the front of a drive carrier is illuminated.

•The console of the Controller VM shows repeated Ext4 filesystem errors.

Control Panel Overview

Each Nutanix node has one or two control panels in the front of the chassis. The two-node platforms have

parate control panels for node A and node B. On four-node platforms, one panel controls nodes A and B,

and the other panel controls nodes C and D.

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Figure: Control panels (ears) for two-node and four-node platforms

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Summary: Replacing a Controller VM Boot Drive (Single SSD

Platforms)

If the platform has two SSDs, or is an all-flash node (all-SSDs), u the procedure HDD/SSD replacement

(Dual SSD Platforms).

Before you begin: Log on to any Controller VM in the cluster. Run the script to gather the

information you need to replace the failed component.

nutanix@cvm$ ~/rviceability/bin/ --boot --ip=cvm_ip_addr

Replace cvm_ip_addr with the IP address of the failed Controller VM.

Tip: Save the output of this script for reference while you are performing the replacement

procedure. This parameter list is referred to in the procedure as the "worksheet".

1.If you are replacing an encrypted drive, verify that the key management rver is connected before you

replace the drive.

For more information, e the data-at-rest encryption topic in the Web Console Guide.

2.Prepare to replace the failed drive by following Preparing to Replace a Data Drive on page 7.

3.Replace the failed metadata drive by following Physically Replacing a Drive (Single SSD Platforms) on

page 9.

4.Repair the drive by following Repairing a Drive (Single SSD Platforms) on page 13.

5.If you are replacing an encrypted boot drive, replace the Certificate Signing Request by following

Replacing the Certificate Signing Request (CSR) on Encrypted Boot Drives on page 13.

6.If the cluster has more than one storage pool, add the replacement metadata drive to the cluster,

Adding the Metadata Drive to the Cluster on page 14.

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Detailed Procedures

Preparing to Replace a Data Drive

Who is responsible: This procedure should be performed by a rvice technician under contract with

Nutanix.

Estimated time to complete: 5 minutes to 3 h北京中医药大学分数线 ours depending on data density.

Note: If you are replacing an encrypted drive, verify that the key management rver is connected

before you replace the drive.

1.Log on to the Nutanix web console.

2.From the web console, lect Hardware > Diagram and hover the mou over the failed drive.

A disk alert message is displayed. The message changes for different condition魔鬼瀑布 s.

Figure: Failed drive information

3.Write down or record the location of the node and the drive.

You need the disk and node information to verify correct replacement later in this procedure.

4.From the web console Summary > Disk Details field, obtain the Storage Pool id and write it down or

record the information.

Figure: Storage pool ID menu

5.U the web console to remove the failed drive from the Controller VM configuration.

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Caution: If the drive has not completely failed, you must wait for data migration to complete.

If you physically remove a disk before data migration is complete, the data is not correctly

replicated to the replacement drive.

If you are replacing a drive that has failed completely, the drive will be marked offline automatically. You

do not need to wait for data migration to complete. You can replace the drive immediately.

If you are proactively removing a drive or the drive has not failed completely, you must wait for data

migration to complete.

a.Select the disk for removal.

b.Select Remove Disk.

The drive is marked red in the web console and the red LED blinks on the drive.

c.Wait for data migration to complete.

d.In the hardware diagram view, verify that the disk is marked red and is unmounted.

Figure: Removing a disk

Figure: Unmounted Drive (Single-Node Block)

6.Verify that all the other CVMs in the cluster are running.

nutanix@cvm$ cluster status

7.

Warning: The next step affects the operation of a Nutanix cluster. Coordinate down time with

the customer before performing the step.

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Log on to the Controller VM with SSH and shut down the Controller VM.

nutanix@cvm$ cvm_shutdown -P now

If you cannot access the console, you can u SSH to log on to the hypervisor host (hypervisor_ip_addr

from the worksheet). You can also u the IPMI remote console (vSphere or AHV) or a remote desktop

connection (Hyper-V).

Note: Always u the command to power off, ret, or shutdown the Controller

cvm_shutdown

VM. The command notifies the cluster that the Controller VM is unavailable.

cvm_shutdown

Physically Replacing a Drive (Single SSD Platforms)

Who is responsible: This procedure should be performed by a rvice technician under contract with

Nutanix.

Estimated time to complete: 5 to 30 minutes.

•Hard disk drives are labeled with a blue sticker that indicates the size.

•SSD drives are labeled with a green sticker that indicates the size.

•Encrypted SSDs have orange labels. Encrypted HDDs have dark gray labels.

Figure: NX-1050 2.5-inch drive order

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Figure: NX-1065-G4/-G5, NX-1065S, NX-1065S-G5 and NX-1020 3.5-inch drive order

Figure: NX-6020 and NX-6035C, NX-6035C-G5 3.5-inch drive order (Single SSD platforms)

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Figure: NX-6035-G4/G5 3.5-inch drive order

Estimated time to complete: 1 minute

Caution: To ensure adequate cooling, replace drives promptly.

1.If the bezel is installed, obtain the bezel key from the customer. Turn the key, press the l我美丽的校园 atch, and lift off

the bezel.

Figure: Bezel removal

2.Press the button on the front of the drive to relea the lever.

3.Grasp the lever and pull the drive out from the node.

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Figure: 2.5 inch drive removal

Figure: 3.5 inch drive removal

4.Confirm that the rial number on the drive you removed matches the rial number of the failed drive

(disk_rial_number from the worksheet).

Figure: Drive rial number labels

5.Press the button on the front of the replacement drive to relea the lever.

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6.Inrt the replacement drive in the empty slot and push it in until you feel resistance.

7.Push the lever on the front of the drive down until it catches and you hear it click in place.

Repairing a Drive (Single SSD Platforms)

Who is responsible: This procedure should be performed by a rvice technician under contract with

Nutanix.

Estimated time to complete: 30 minutes.

1.From the web console, click on the drive that you replaced.

The Repair Disk button appears on the screen.

2.Click Repair Disk.

The disk repair can take up to 30 minutes.

Figure: Repair disk button

The disk repair is complete when the red disk changes to white and the Hardware > Disk information

changes in the Hardware Dashboard.

Note: If the drive replacement fails, contact Nutanix Support to complete KB 3610.

Replacing the Certificate Signing Request (CSR) on Encrypted Boot Drives

Perform this procedure if the node has encrypted drives.

Estimated time to complete: 5 to 30 minutes

1.Download the certificate signing request (CSR) to the repaired node.

You can get the CSR from the Key Management Server (KMS).

2.Navigate to a different Controller VM that has the CSR.

a.Replace the certificate on the repaired boot drive.

ncli> data-at-rest-encryption-certificate replace-cvm-certificate host-id:host_uuid

key-management-rver-name:kms_name file-path:cert_file_path

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Replace host_uuid with the UUID of the host.

Replace kms_name with the name of the KMS.

Replace cert_file_path with the certificate file path.

b.Ensure that the drive is mounted and added to the cluster (the drive is no longer marked red in the

web console).

3.If the boot drive is not mounted, complete the following steps.

a.Clean the fourth partition of the boot drive.

nutanix@cvm$ sudo cluster/bin/clean_disks -p /dev/sdX4

Where sdX4 is the device id for the fourth partition of the drive you are replacing.

b.Restart Hades.

nutanix@cvm$ sudo cluster/bin/hades

restart

c.Restart Genesis.

nutanix@cvm$ genesis restart

Adding the Metadata Drive to the Cluster

Who is responsible: This procedure should be performed by a rvice technician under contract with

Nutanix.

Estimated time to complete: 35 minutes

1.Compare the number of nodes and disks to verify that the storage change completed properly by tying

the commands.

nutanix@cvm$ ncli host ls | grep -c UUID

nutanix@cvm$ ncli disk ls tier-name=SSD-SATA | grep -A2 "Online.*true" | grep -c

"Location.*1"

The output from the two commands should match.

If the cluster has only one storage pool, the disk is automatically added to the storage pool.

2.If the cluster has more than one storage pool, determine the ID of the new metadata drive.

nutanix@cvm$ ncli disk ls ti清炒藕片的家常做法 er-name=SSD-SATA | egrep “Id|Storage Pool Id”

Look for a drive that has an empty Storage Pool Id field immediately underneath it, as in the following:

Id : 3983515467

Storage Pool Id :

Make a note of the Id.

3.If the cluster has more than one storage pool, add the new dri重阳节的图片 动漫高清图片 ve to the appropriate storage pool.

nutanix@cvm$ ncli storagepool edit id=storage_pool_id add-disk-ids=new_drive_id

•Replace storage_pool_id with the storage pool ID (storage_pool_id from the worksheet).

•Replace new_drive_id with the value of Id from the previous step.

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This command displays output similar to the following.

ID : 1956

Name : sp1

Disk Count : 25

Disk Ids : 8, 9, 10, 11, 12, 13, 14, 29, 28, 31, 30, 2717, 32, 3983515467, 2781,

39, 42, 40, 41, 44, 51, 55, 54, 53, 52

ILM Threshold : 50%

Max Capacity : 16.24 TB (17,860,789,021,968 bytes)

Ud Capacity : 0 bytes

Free Capacity : 16.24 TB (17,860,789,021,968 bytes)

Confirm that the drive you added in the previous step is listed in the Ids field.

4.Verify the SSD firmware version.

nutanix@cvm$ ncc health_checks hardware_checks disk_checks ssd_firmware_version_check

5.If the SSD is an Intel S3610 with firmware version G2010110, contact Nutanix support.

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