Questions tagged [smart]

Self-Monitoring, Analysis and Reporting Technology

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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 ...
Santiago Maturana Arce's user avatar
-3 votes
1 answer
262 views

RAID 0 - disk failure probability - need help to verifying my experience [closed]

I have HP DL380 G7, with 8x300GB disks. The disks are not HP genuine, they are OEM. I configured RAID 0 for all disks, as i need speed and i have backup plans. within 1 month: 1 Disk threw SMART ...
Hongkie's user avatar
2 votes
1 answer
10k 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 ...
Ethan Shrago's user avatar
4 votes
0 answers
5k views

Troubleshooting `Buffer I/O error` on software-raid/md-device

I've got a RAID-5 mdadm array that reliably causes Buffer I/O error on dev md0, logical block 1598030208, async page read to be written do dmesg when reading that block. Of course, the read also ...
RQM's user avatar
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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 ...
Matthias's user avatar
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2 votes
1 answer
433 views

S.M.A.R.T Power_On_Hours wrap around with Seagate Baracuda?

I have a well used Seagate Barracuda 7200.9 with 80 GB. The smart report shows Power_On_Hours 0x0032 094 094 000 Old_age Always - 5646 But that can't be right. ...
fhossfel's user avatar
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3 votes
2 answers
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SATA disks being identified as SCSI

I have two identical servers with same hardware and cloned Linux OS. They both have Supermicro HBA AOC-S3008L. Yet one server identifies SATA disks as SCSI while the other one correctly identifies ...
Nima Mohammadi's user avatar
1 vote
1 answer
421 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 ...
user429673's user avatar
1 vote
1 answer
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How bad are Hardware_ECC_Recovered, Seek_Error_rate and Raw_read_error_rate for disks?

As I bought a second-hand like-new 10TB disk on Amazon for back-up purposes, I did a smart read which showed the disk had barely been used. The smart info was very confusing though, as Western ...
ujjain's user avatar
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3 votes
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ZFS keeps repairing the same disk when scrubbing - what does that mean?

I have a ZFS pool comprised of 6 disk, arranged in 3 stripped mirrors. The server is a Supermicro X11SSM-F with a Xeon CPU, 32 GB of ECC RAM running Ubuntu 17.04. I'm using 2 Icy Dock MB154SP-B to ...
FlorentR's user avatar
1 vote
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381 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 ...
Elite_Dragon1337's user avatar
2 votes
2 answers
1k views

How to interpret failure data provided by SMART and zfs

In a small server system, I have a zfs file system with a mirrored pair of consumer grade drives (Seagate Barracudas). Recently, during a periodic scrub operation the following result was given: ...
Jules's user avatar
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1 answer
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Raw Read Error Rate for Intel SSDs

I've provisioned a few servers with a bunch of Intel S3610's and I'm a bit concerned about the "Raw Read Error Rate" values. The tools shows all drives as healthy and there are no other errors as ...
ispirto's user avatar
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6 votes
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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 ...
Nuno's user avatar
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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 ...
Jeff Kubina's user avatar
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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) ...
Valmiky Arquissandas's user avatar
1 vote
1 answer
801 views

How to calculate /get the UBER value from S.M.A.R.T measurements in SSDs

UBER is a metric for the rate of occurrence of data errors, equal to the number of data errors per bits read over the entire lifetime of an SSD. Mathematically: The numerator is the total count of ...
SamTh3D3v's user avatar
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3 votes
2 answers
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S.M.A.R.T. Errors of previous hdd or need to replace?

I ran s.m.a.r.t and came up with some weird errors, although the disk is pretty fresh Power_On_Minutes 427h+41m I'm curious, are these the errors of previous hdd? Error 1 occurred at disk power-on ...
Chris's user avatar
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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 ...
FreeSoftwareServers's user avatar
1 vote
1 answer
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 ...
MUY Belgium's user avatar
2 votes
1 answer
769 views

Weird smartctl output. Is my disk in danger?

I have a disk, that gets me kinda weird smartctl output. I have never seen such large nubmbers on other disks. Does anyone now how to interpret these ? Is the disk likely to be faulty ? SMART ...
Koren D's user avatar
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3 votes
1 answer
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S.M.A.R.T attribute saying FAILING_NOW

I have the following SMART attribut staying at FAILING_NOW, but with a raw value of just 1. Is it not suposed to change to IN_THE_PAST later ? ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH ...
Xantra's user avatar
  • 55
1 vote
1 answer
937 views

SMART vs badblocks, who is right?

I have and semi-old hdd (magnetic one, not ssd) and I intended to use it as system drive for my new NAS. So I've run SMART selftest on it and it ended with status "Completed: read failure". However, ...
graywolf's user avatar
  • 187
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1 answer
862 views

Is it possible to reset S.M.A.R.T. Spin_Retry_Count?

I have a 20-bay nas that uses Norco 5 in 2 hard drive cages. It's been at about half capacity most of it's life, but I recently added 5 new drives too it and ever since I've just been having sporadic ...
user126715's user avatar
0 votes
2 answers
403 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....
steve8918's user avatar
  • 115
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3 answers
1k views

What is the absolutely simplest way of sending notification from a linux server?

I have a server with smartmontools and I wish it sent med a notification/warning email whenever a disk fails. For this i need to setup a email server on the machine. However this will be the only ...
netbrain's user avatar
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Only notify when unreadable sectors increases

Is there a way to only be notified when the amount of unreadable sectors increases on a certain disk? The following warning/error was logged by the smartd daemon: Device: /dev/sdb [SAT], 4 Currently ...
David's user avatar
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4 votes
1 answer
1k views

Reliability of S.M.A.R.T. Selftest

I let smartd check my hard drives regularly. Recently I have been notified about a failed short selftest on one of my hard-drivers. smartctl 6.4 2014-10-07 r4002 [x86_64-linux-3.16.0-0.bpo.4-amd64] ...
Christian's user avatar
  • 341
3 votes
1 answer
2k views

How to check S.M.A.R.T. HDD Status in CoreOS

How to check the status of the hard discs (S.M.A.R.T.) in the CoreOS? smartd and smartctl are not part of the CoreOS. So following CoreOS philosophy smartd would run inside of the container, as a ...
Nemanja Trifunovic's user avatar
0 votes
1 answer
152 views

Windows Server - WMI Permission?

This question is related to this one. I am trying to get some disk sensor data via WMI (W2012R2). Therefore I added a user wmiagent and granted some rights. I did it exactly like in this guide. Some ...
C.M.'s user avatar
  • 123
-1 votes
3 answers
447 views

CentOS 7 server rebooted itself into rescue mode - how can I find out why?

I've switched it back to regular boot and it seems to boot up fine. So why did it reboot? Running "last" doesn't even show a log OF a reboot. What does that suggest? When I try "smartctl -a /dev/...
Codemonkey's user avatar
  • 1,108
4 votes
3 answers
8k views

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 ...
kuz8's user avatar
  • 483
37 votes
2 answers
23k views

What does SMART testing do and how does it work?

man smartctl states (SNIPPED for brevity): The first category, called "online" testing. The second category of testing is called "offline" testing. Normally, the disk will ...
user avatar
3 votes
1 answer
234 views

SMART self tests - worthwhile if already doing weekly RAID checks and smartctl -a output being monitored?

If a server is configured to check the RAID weekly using /usr/sbin/raid-check and the output of smartctl -a is being monitored, is it worthwhile to also have regular SMART short and long self tests be ...
sa289's user avatar
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1 vote
0 answers
39 views

Generating SMART errors to make sure I'm detecting them correctly

I wrote a script that checks various server's HDDs for SMART errors and takes some action if it finds any. Non of our servers are reporting any SMART errors and instead of waiting to see if my script ...
red888's user avatar
  • 4,243
1 vote
1 answer
4k views

FreeNAS is getting Uncorrectable parity/CRC errors

In my FreeNAS 9.3 installation I am getting more and more Uncorrectable parity/CRC errors (like these here: May 15 13:39:41 freenas (ada1:ahcich1:0:0:0): READ_FPDMA_QUEUED. ACB: 60 00 b8 0e 18 40 91 ...
Mr.Gosh's user avatar
  • 323
1 vote
2 answers
144 views

Measuring external hdd's rough handling

An external USB hard drive periodically travels to and from my facility to update its files (it's for offsite backup). HDD, not SSD. How can I measure if it's being handled too roughly? I'd rather ...
Camille Goudeseune's user avatar
2 votes
1 answer
5k views

S.M.A.R.T long self test. Does the test continue after finding bad blocks?

I've been watching a SMART enabled HDD closely recently (connected to an OSX Server, which is not very helpful with SMART output out of the box). The drive is definitely failing- the heads click, ...
questions's user avatar
2 votes
1 answer
5k views

SMART attribute 231 mystery: Mushkin SSD

Following from this question: How do I convince smartmontools that my SSD is not a hard drive? ... I now have the Mushkin MKNSSDCR120GB-MX's SMART attributes reading as "SandForce Driven SSDs". ...
njahnke's user avatar
  • 290
0 votes
1 answer
517 views

Unable to get SMART metrics from Seagate Disks on Debian OS

Referring to the question here, I too am trying to get all attributes out, as explained in this blog here. I am using Debian 6 as OS, and installed smartmontools version 6.3 using apt-get. My 6 disks ...
Gautam Somani's user avatar
2 votes
1 answer
1k views

How do I convince smartmontools that my SSD is not a hard drive?

I'm running Debian Wheezy, stock smartmontools package (smartctl 5.41). An SSD, Mushkin MKNSSDCR120GB-MX, is reporting usage lifetime information in SMART attribute id 231 (decimal). For hard drives ...
njahnke's user avatar
  • 290
4 votes
2 answers
5k views

Finding out which cciss disk is what /dev/sdX disk (smartmontools & cciss raid controller)

I have a HP server, which has a hardware RAID array (that mostly isn't being used for raiding, the disks are just passed through to the Linux OS). I have 6 SSD disks. 2 are riad mirrored together by ...
Amandasaurus's user avatar
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3 votes
1 answer
1k views

How can a SMART normalised value be lower (worse) than the worst value?

I'm seeing output from smartctl where the VALUE is much less than WORST for some attributes. Does this make sense? What does it mean? Everything I have read indicates that: The raw value (RAW_VALUE ...
Draemon's user avatar
  • 527
3 votes
1 answer
8k views

"failed command: WRITE DMA" but SMART test says hard disk is OK

Recently I started receiving (in dmesg) such errors: [ 1569.944985] ata6.01: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 [ 1569.944991] ata6.01: BMDMA stat 0x44 [ 1569.944994] ata6.01: failed ...
user983447's user avatar
  • 1,147
1 vote
1 answer
1k views

Setting up VLANs using GS724T & Draytek 2860n-Plus

I am having a world of problems here and can't see what is going wrong! The Plan: Use the Draytek to connect to the internet and provide WLAN access. Single port to connect to the GS724T and tag ...
AK47UK's user avatar
  • 11
5 votes
1 answer
2k views

HP Proliant G6 reporting failed SSD drive - alternative strategies for monitoring?

I would like to get your feedback about a controversial situation I found myself in some days ago. I was tasked to use a HP Proliant G6 for development purposes with 2 new (< 2 months, never used ...
Deim0s's user avatar
  • 182
42 votes
6 answers
7k views

Is my Hard Drive Failing?

I just tried to run a test on my hdd and it doesn't want to complete a self test. Here is the result: smartctl --attributes --log=selftest /dev/sda smartctl 6.2 2013-07-26 r3841 [x86_64-linux-3.13.0-...
Michel's user avatar
  • 423
3 votes
1 answer
388 views

When does a Raid restore redundancy after a broken sector is flagged as defective?

What happens when I flag a sector on a hdd in a RAID setup as `defective (GLIST) ? Will the data be written to the replacement sector right away or does this depend on the actual setup/settings (...
Benedikt Haug's user avatar
-2 votes
1 answer
475 views

VMWare ESXi 4.1.0 - Checking SMART info [closed]

I'd like to know if there's a way to check the SMART info for hard drives on VMWare ESXi 4.1.0? Thank you.
supmethods's user avatar
5 votes
1 answer
2k views

HDD is acting up, but S.M.A.R.T says everything is fine

Before I begin, a quick disclaimer. I'm basically a developer forced into a sysadmin role by circumstances, so I apologize in advance if I say something stupid or seem like I don't know what I'm doing....
panta82's user avatar
  • 248