Self-Monitoring, Analysis and Reporting Technology
Self-Monitoring, Analysis and Reporting Technology
This used to monitor a hard drive's state and reliability. It tries to predict failures and warns the user when a disk is degrading.
Questions tagged [smart]
201 questions
42
votes
6 answers
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-3.13.0-32-generic] (local build)
=== START OF READ SMART…
Michel
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34
votes
2 answers
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 suspend offline testing while disk accesses are taking place, and then…
user176193
30
votes
5 answers
Do SSDs support SMART?
S.M.A.R.T. (for Self-Monitoring Analysis and Reporting Technology) is a wonderful technology to detect hard drive failure before it really happens.
But is S.M.A.R.T. relevant for SSDs?
paulgreg
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23
votes
6 answers
How do I easily repair a single unreadable block on a Linux disk?
My Linux system has started throwing SMART errors in the syslog. I tracked it down and believe the problem is a single block on the disk. How do I go about easily getting the disk to reallocate that one block? I'd like to know what file got…
Nelson
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21
votes
4 answers
How are SMART selftests related to badblocks?
The smartctl tool allows initiating a long self-test (smartctl -t long /dev/sda). However there's also badblocks that I can run on a drive. How are the two related? If badblocks detects bad blocks, does the drive automatically update its SMART…
Hongli Lai
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20
votes
1 answer
Is smartd properly configured to send alerts by email?
I just configured a Debian server as follows
apt-get install smartmontools
vi /etc/default/smartmontools - and here uncommented these 2 lines
# uncomment to start smartd on system startup
start_smartd=yes
# uncomment to pass additional options to…
Alex Flo
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19
votes
1 answer
Why does unpartitioned Hitachi HDS5C3020 drive start consuming 50% more power 15 minutes after boot?
In a Debian 6.0.6 system there are 74 pieces of 2TB Toshiba DT01ABA200 drives. These drives are identified as Hitachi HDS5C3020BLE630 drives running firmware revision MZ4OAAB0. 64 Drives attached via HP SAS expander cards to an LSI 2008 SAS…
Pro Backup
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18
votes
5 answers
Understanding smartctl -a output
I have 6 drives in a NAS box. Two of them are Seagates, and they return high RAW_VALUES for errors; see below.
My other drives show far lower values.
Is this cause for alarm? Or just the way Seagates report?
Look at Raw_Read_Error_Rate and…
Dan
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18
votes
7 answers
How many SMART sector reallocations indicate problems?
I have a NAS appliance that is just over a month old. It is configured to email me alerts generated from the hard drives' SMART data. After one day, one of the hard drives reported that a sector had gone bad and been reallocated. Over the first…
Jeremy
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18
votes
6 answers
Should I be concerned about a high SMART Hardware_ECC_Recovered value?
I got such a message in /var/log/messages:
Jun 25 06:29:27 server.ru smartd[4477]: Device: /dev/sda, SMART Usage Attribute: 195 Hardware_ECC_Recovered changed from 46 to 47
#smartctl -a /dev/sda:
smartctl version 5.38 [i686-redhat-linux-gnu]…
lexsys
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16
votes
5 answers
How frequently should SMART be run on a disk?
I'm a software engineer, not a system admin, so if this question seems a little green you know why! ;-)
As a personal project I've been working on a home NAS system using FreeNAS. One of the features of FreeNAS is the ability setup a SMART check to…
Petriborg
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16
votes
2 answers
Cause of Current Pending Sector and Offline Uncorrectable increase and then decrease to zero
Over the course of a week, for a 3TB Seagate drive (ST3000DM001-1CH166), smartd reported a slowly increasing number of offline uncorrectable and currently unreadable (pending) sectors, then a decreasing number, until finally the count was 0 and the…
Raman
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16
votes
3 answers
Is S.M.A.R.T. smart to use?
A few years ago I was told to avoid S.M.A.R.T. like the plague. The reasoning was that the stress the testing puts on the drive will actually cause it to fail.
Is this still the case? If not, what is a reasonable frequency to run tests? If I should…
Bob
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14
votes
2 answers
is UNC S.M.A.R.T. Error serious? need to take action?
I have a 300G Western Digital Raptor, recently showing UNC SMART, wondering anyone who has experience knows should I replace it and get warranty form WD?
Details of smartctl -a as follows:
smartctl 5.41 2011-06-09 r3365 [FreeBSD 8.2-RELEASE-p6…
c2h2
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13
votes
4 answers
Quick method to determine SSD drive health?
I have an Intel X-25M drive that was marked "failed" twice in a ZFS storage array, as noted here. However, after removing the drive, it seems to to mount, read and write in other computers (Mac, PC, USB enclosure, etc.)
Is there a good way to…
ewwhite
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