Questions tagged [smartctl]

smartctl controls the Self-Monitoring, Analysis and Reporting Technology (SMART) system built into many ATA-3 and later ATA, IDE and SCSI-3 hard drives.

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Health Tests on NVMe

On the servers I have, with HDD or SSD, I have a cron that periodically runs: /usr/sbin/smartctl --test=short/long /dev/sd1 (for each disk) While it runs, it just looks at the output of /usr/sbin/...
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Rebuild RAID5 with uncorrectable sectors on multiple disks

My software RAID5 (mdadm) system consists of five disks. Recently, I get I/O errors when reading certain files. Most of the other files are still readable. At first, I was planning to find out which ...
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Drive to fail in 24 hours - Possible Hard Drive Failure Soon

Here's what the smartctls is saying. How accurate is the 24 hours failure? Any successful fixes to the Reallocated_Sector_Ct fail? Here's what I got from running the attributes command: == START OF ...
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How can I forward smartd alerts to multiple emails?

I want to forward smartd alerts to multiple email addresses. According to smartd.conf man page, To send email to more than one user, please use the following "comma separated" form for the ...
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How do I get smartctl offline test results emailed?

I want to schedule smartctl tests like smartctl -t long /dev/sdc, and then have the test result emailed to an email address. Is there any way I can do that?
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What do Offline_Uncorrectable and Current_Pending_Sector mean in the context of SMART tests?

SMART shows there are 6 Offline_Uncorrectable sectors and 1 Current_Pending_Sector on one of my drives. What do these parameters mean? I failed to find a detailed explanation by Googling. Also, is ...
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ATA error count increased from 0 to 15 however Current_Pending_Sector is 0

I got below error via an email 2 weeks back: The following warning/error was logged by the smartd daemon: Device: /dev/sda [SAT], ATA error count increased from 0 to 15 Device info: ST1000LM035-...
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Does this SMART result indicate brand new drive? [closed]

Bought a Seagate Exos 7e drive from an OEM reseller (no Seagate warranty). Are these SMART results valid for a drive that is supposed to be brand new?
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Identify HDD failure by sound + Is it safe to run smartctl on a mounted RAID1?

Basically, I have two WD HDDs in a programmatic RAID1 (no special hardware): $ lsscsi --verbose [0:0:0:0] disk ATA WDC WD10EFRX-68F 0A82 /dev/sda dir: /sys/bus/scsi/devices/0:0:0:0 [/...
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WDC WD40PURZ-85AKKY0 is missing smartclt attributes?

I d like to share a weird thing I came across with the above aforementioned disk. I have two of these WDC WD40PURZ-85AKKY0 WDC WD40PURZ-85TTDY0 both are purple 4tb drives. Before use them in an array ...
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invalid JSON to monitor SMART on Zabbix

I've followed these steps on github: https://github.com/v-zhuravlev/zbx-smartctl to monitor the SMART disks in my Winsows servers on Zabbix. BUt when I add the template to the host I'd configured, on ...
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S.M.A.R.T. lifetime hours resetting to zero

I use S.M.A.R.T. selftest to test all of my hard drives and SSDs. I run a short test daily and a long test monthly. One of my SSD is showing odd behavior in that the lifetime hours seem to reset back ...
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how to set automatic tests with smartd for Broadcom / LSI SAS2008 controller

I have a server that I want to set up automatic tests with smartd for hdd. From what I see this is my controller 81:00.0 Serial Attached SCSI controller: Broadcom / LSI SAS2008 PCI-Express Fusion-MPT ...
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120 views

is running smartctl safe?

I cant seem to find a super easy answer for this and I am sure that RTFM applies here but I am hoping this question, asked simply, will also help many other noobs out there. I am running freenas and ...
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460 views

How to interpret conflicting status data between `smartctl` and `mdadm`?

I have a HDD which is a member of a RAID10 array. smartctl and mdadm give me conflicting indications of its status. smartctl claims that the disk is FAILED: $ sudo smartctl -H /dev/sdf smartctl 7.0 ...
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355 views

Does this SMART report indicate a bad disk?

On a remote server, I have 2x3TB drives set in raid 0 with SLI raid card. I tried to run SMART tests to see if drives have a problem because server become unresponsive and one drive had to be put back ...
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203 views

Testing faulty disk

I have a degraded RAID-1 setup and I'm trying to troubleshoot the problem whether it's completely dead (and need to send the drive back to the vendor) or it can be brought back. So I ran smartctl: ...
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HDD SMART interpretation

I need your opinion if the drive below is failing. When I run "smartctl -a /dev/sda -d megaraid,1", 2 errors are posted at the end of the output, stating "Error: WP at LBA". I don't see anything ...
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387 views

Fixing a readonly-filesystem on Raid-1?

I have an Ubuntu 18 server using a software RAID-1 array, and smartctl is indicating that my /dev/sda is failing. Both Throughput_Performance and Reallocated_Sector_Ct are listed as "FAILING_NOW". ...
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181 views

S.M.A.R.T. Attributes from OWC Mercury Rack Pro

I'm having difficulty getting SMART Attributes from drives in an OWC Mercury Rack Pro. I can successfully get all the drive info, but I get nothing past the START OF READ SMART DATA SECTION. It is ...
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590 views

How to derive bytes written from SMART's host_write_commands?

Using either smartctl 7.0 or nvme 1.7, I get the following data from the SMART log data_units_written : 350,371,149 host_write_commands : 2,974,115,785 Via smartctl, ...
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How to collect historical data using smartctl?

I'm trying to do some analysis on the SMART stats of disk drives. Unfortunately, I'm not collecting/storing smart stats data daily for the analysis. I will be writing some procedure to collect it from ...
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Does calling storcli on a hard disk drive induce read/write latency?

I am calling storcli /c0/eall/sall show all on some 4TB Western Digital hard disk drives to get their SMART code status. When I do this it causes significant write latency to the disks, is that ...
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889 views

Tests with smartctl vs smartd

I am looking into setting up smartmontools. I'd like to control when the tests run. I was thinking of running: /usr/sbin/smartctl --test=short /dev/sdX (every week) /usr/sbin/smartctl --test=long /...
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How can I change a SMART attribute value?

I have a drive which has signaled a SMART error (Current_Pending_Sector is 1) and I've run a "long offline test" against the drive which reported zero errors. This was after running a "short offline ...
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687 views

smartctl 6.6 missing attributes table

I'm used to analyze the output of smartctl -A using grep on specific attributes. Example: smartctl 5.41 2011-06-09 r3365 [x86_64-linux-3.2.0-4-amd64] (local build) Copyright (C) 2002-11 by Bruce ...
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52 views

Hardware Checks after Air Conditioning Failure

We had an overnight air conditioning failure. We discovered that the temperature in the server room had reached about 110-115°F (43-46°C). We powered off everything that hadn't already and had the A/C ...
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447 views

How to determine disk connection type in Linux

So this might be an obvious question, but I am managing several servers over a network and I would like to be able to find out what type of connector each server is using (i.e. SATA, SCSI, IDE, etc...)...
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SSD Wear_Leveling_Count = 17

I have just checked my SSD drive (Samsung SSD 750 EVO 120GB) with smartctl. The result is: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 5 ...
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SMART error (CurrentPendingSector) detected on host

Smart is reporting the following error each day one one of my data centre server SSDs: This message was generated by the smartd daemon running on: host name: x DNS domain: x The following ...
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506 views

Current Pending Sector S.M.A.R.T

Hello I have a Linux Server mounted with BTRFS in RAID-1 and I would like that someone more expert than me could solve my doubts. I have 3 HDD of 6TB each, in one of them every so often smartd detects ...
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5k views

smartctl drive Media_Wearout_Indicator values outside normal bounds

I was attempting to put some monitoring in place to track the health of my SSD RAID on my production database. Normally I would expect a value of between 100 (new) and 0 (dead) for the ...
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451 views

Smartd supress/change level for FAILURE PREDICTION THRESHOLD EXCEEDED

I'm using smartd to monitor drive health It started compaining about FAILURE PREDICTION THRESHOLD EXCEEDED for one drive, but I extensively tested that drive and it's fully functional That drive is ...
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linux + how to identify disk health

we have linux redhat server version 7 we are suspects that one of the disks (/dev/sdc ) in the machine HW ( dell ) is in bad state, ( and that because required to do fsck from dmesg ) but we not ...
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48 views

Enable new disk in raid

I had a server with 2 disks in a raid and one of them failed. Called the provider and had them change the disk. After a reboot I still see only one disk: cat /proc/mdstat Personalities : [raid1] [...
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HDD Bad sectors not realloated but no smart errors

I have a pair of WDD drives and recently one got kicked out of the RAID1 array. SMART is showing that there's IO errors on some sectors, but all the SMART attributes appear to be looking fine: root@...
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281 views

HGST He8 S.M.A.R.T. test extended-self test polling time variability

I recently received a batch of 6 brand new HGST He8 drives and when running an initial long self-test on them, I noticed that the extended self-test routine recommended polling time exhibit a very ...
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311 views

Filesystem set to read-only mode, which drive is faulty?

I woke up today to find out my CentOS server's filesystem has been set to read-only mode. I'm running RAID 1 on this server. # mkdir test mkdir: cannot create directory `test': Read-only file system ...
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Linux centos 6.5 Disk performance monitoring using smartctl

i installed smartctl utility in centos 6.7 but cant get output of smartctl , i fire # smartctl -i /dev/sda smartctl 5.43 2016-09-28 r4347 [x86_64-...
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smart long test - what is the performance impact on busy server?

I have a busy server with a RAID 1 setup. The application (runs in PHP) is very read/write intensive to the database (MariaDB). A cronjob runs smartctl short test every day and checks the output of ...
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Trouble Getting the smartd Attributes of a Western Digital 4TB HHD

I am trying to get the smartd attributes of a Western Digital 4TB HHD model WD4001FYYG-01SL3. I would like to get the following attributes: SMART 5 Reallocated Sectors Count SMART 187 Reported ...
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378 views

Out-of-order lifetimes in SMART self-test log

I was peeking at a server's SMART log, and noticed this (emphasis mine): SMART Self-test log structure revision number 1 Num Test_Description Status Remaining LifeTime(hours) ...
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How do I determine the failed/removed HDD in mdadm raid?

My current mdstat: $ cat /proc/mdstat Personalities : [raid6] [raid5] [raid4] [linear] [multipath] [raid0] [raid1] [raid10] md0 : active raid6 sde[8] sdh[4] sdg[1] sdd[6] sdb[5] sdc[7] ...
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Lycom PE-115 firware update possible? Otherwise `smartctl` on FreeNAS reports errors

I have Lycom PE-115 SATA 3 2 Port 6Gbps Low Profile PCI-e 2.0 Host Adapter in my machine running FreeNAS. It seem have some trouble with SMART of SanDisk SSD Plus I connected to it. I've seen reports ...
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404 views

e2fsck found no errors, but S.M.A.R.T. self test fails

I have an external Freecom HDD (Samsung drive inside), connected via USB and using it's own power supply. The disk disconnects itself on random interval of time (from few hours up to a month). I tend ...
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390 views

Does "smartctl -H or -all" run anything against disks or just poll data?

I am setting up Smart monitoring currently and I had a question regarding the command smartctl -H /dev/sda === START OF READ SMART DATA SECTION === SMART Health Status: OK Does this actually run ...
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2k views

In smartctl, what does means "Percentage used endurance indicator too short"?

I use Bacula to make backups. When i use smartctl # smartctl -H -l error /dev/st0 smartctl 5.43 2012-06-30 r3573 [x86_64-linux-2.6.32-431.1.2.el6.x86_64] (local build) Copyright (C) 2002-12 by Bruce ...
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40 views

Is my drive good or going bad?

I just ran SMART on my server's drives but I'm not too sure how to interpret it. My results seem like the drive is doing fine, but I would like a second (or third) opinion, just to be safe. Here are ...
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289 views

Ran smartctl on my drive, not sure if this is good or bad

I've been having problems with a drive in my Synology diskstation. I saw the following errors pop up on my /var/log/messages: ata6.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen ata6....
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What's the top normal S.M.A.R.T. temperature for HGST Helium Ultrastar 8TB 7200 RPM SAS 12Gb/s enterprise drives?

I've just received new Dell R730xd 2U server with faceplate 12 * 3.5" drive bays + 4 * 3.5" mid-body tray, located above RAM modules & CPUs. I've plugged 16 * HGST Helium 8Tb 7200 RPM SAS 12Gb/s ...