Support Support Downloads Knowledge Base Juniper Support Portal Community

Knowledge Base

Search our Knowledge Base sites to find answers to your questions.

Ask All Knowledge Base Sites All Knowledge Base Sites JunosE Defect (KA)Knowledge BaseSecurity AdvisoriesTechnical BulletinsTechnotes Sign in to display secure content and recently viewed articles

[MX/QFX] How to perform health check on the hard disk drive connected to Satellite Device QFX5100

0

0

Article ID: KB31233 KB Last Updated: 27 Dec 2016Version: 1.0
Summary:

This article explains how to perform a Self-Monitoring, Analysis and Reporting Technology (SMART) test on the hard disk drive of a QFX5100 acting as a Satellite Device (SD) from an Aggregation Device (AD).

Symptoms:

The Junos Fusion topology is composed of an aggregation device and multiple satellite devices. Each satellite device has at least one connection to the aggregation device. The satellite devices provide interfaces that send and receive network traffic. Network traffic can be forwarded over the aggregation device within the Junos Fusion topology. Below is a link which describes Junos Fusion components in detail.

Understanding Junos Fusion Provider Edge Components

In order to determine the overall all health of the hard disk drive on a Satellite Device QFX5100, it is useful to examine the results of the hard drive SMART tests. 

Solution:

From the Aggregation Device (AD),  run the following commands to verify the health of the hard disk on the QFX5100 acting as a Satellite Device:

Step 1:  Determine the Model, Serial Number and Size of Connected hard drives on Satellite Devices 

labroot@AD> request chassis satellite shell-command fpc-slot 202 "lsscsi --size"
Command send to FPC. Waiting for response.
215 Data follows, terminated by "."
Slot-ID: 202
[4:0:0:0] disk ATA TS16GHSD310 2011 /dev/sda 16.0GB       <<<<< storage device 
[5:0:0:0] disk ATA TS16GHSD310 2011 /dev/sdb 16.0GB       <<<<< storage device 

Step 2: Run SMART test on sda : 

labroot@AD> request chassis satellite shell-command fpc-slot 202 "smartctl --health /dev/sda"
Command send to FPC. Waiting for response.
215 Data follows, terminated by "."
Slot-ID: 202
smartctl 5.42 2011-10-20 r3458 [x86_64-linux-3.10.62-ltsi-WR6.0.0.21_standard] (local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED   <<<< Result of the overall health check 
Please note the following marginal Attributes:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
167 Unknown_Attribute 0x0000 100 100 100 Old_age Offline FAILING_NOW 71

Step 3:  Perform the health check on sdb:

labroot@AD> request chassis satellite shell-command fpc-slot 202 "smartctl --health /dev/sdb"
Command send to FPC. Waiting for response.
215 Data follows, terminated by "."
Slot-ID: 202
smartctl 5.42 2011-10-20 r3458 [x86_64-linux-3.10.62-ltsi-WR6.0.0.21_standard] (local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED   <<<< Result of the overall health check 
Please note the following marginal Attributes:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
167 Unknown_Attribute 0x0000 100 100 100 Old_age Offline FAILING_NOW 17

Related Links

Comment on this article > Affected Products Browse the Knowledge Base for more articles related to these product categories. Select a category to begin.

Getting Up and Running with Junos

Getting Up and Running with Junos Security Alerts and Vulnerabilities Product Alerts and Software Release Notices Problem Report (PR) Search Tool EOL Notices and Bulletins JTAC User Guide Customer Care User Guide Pathfinder SRX High Availability Configurator SRX VPN Configurator Training Courses and Videos End User Licence Agreement Global Search