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]
207 questions
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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 large degree of variability.
for f in /dev/sd[u-z];…
user429673
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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 Digital Red's have much easier to read smart disk…
ujjain
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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
I did some research and found that this is…
Elite_Dragon1337
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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 shown as full SMART data pasted below for one…
ispirto
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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 data errors detected over the full TBW rating.
How…
SamTh3D3v
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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 Allen,…
MUY Belgium
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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, badblock complete the destructive test (so 4…
graywolf
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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 picks them up when disks start failing I'd like…
red888
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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 00 00 01 00 00
May 15 13:39:41 freenas…
Mr.Gosh
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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 not just wait for the bearings to start…
Camille Goudeseune
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disabling smartd service for a web server
I've read in a few places that the smartd service is not needed for running a web server, but no explanation is given for why this is so.
Why would it be a good idea to turn this service off when it could potentially be giving you timely warnings of…
nedned
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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 VLANs.
Configure ports to belong to a particular VLAN,…
AK47UK
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smartd rule does not work
I have an issue with smartd.
I've studied its man page, and then I've set the SMART daemon to run long test of the hard disks two times a month and alert to the specified mail address in case of faults such as high temperature. Those rules are…
dr.Equivalent
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How does loss of DWORD synchronization affect the health of an SAS disk?
I tried to get more information from the error log of an SAS disk by running the following command that prints values and descriptions of the SAS (SSP) Protocol Specific log page.
# smartctl -d scsi -l sasphy /dev/sg1
Protocol Specific port log…
Question Overflow
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How to silence "Disk Utility" "A hard disk is reporting health problems"
I'm working on repairing a raid member,
and I know I have a bad disk. This dialog
appears by the hundreds (a new crop is minted every time
anything touches anything related to a mount, so closing them does no good):
Check, got it. How can I make…
Bryce
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