Self-Monitoring, Analysis and Reporting Technology

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40
votes
6answers
4k 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-...
25
votes
5answers
25k views

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?
24
votes
2answers
2k 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 suspend offline ...
17
votes
1answer
2k views

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 ...
15
votes
7answers
7k views

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 ...
15
votes
3answers
757 views

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 ...
14
votes
4answers
6k views

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, ...
13
votes
6answers
19k views

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 ...
13
votes
5answers
13k views

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: ...
12
votes
3answers
10k views

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, ...
11
votes
2answers
2k views

How do you monitor SSD wear in Windows when the drives are presented as 'generic' devices?

Under Linux, we can monitor SSD wear fairly easily with smartmontools whether the drive is presented as a normal block device or a generic device (which happens when the drive has been hardware RAIDed ...
10
votes
5answers
19k views

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 ...
8
votes
3answers
9k views

Best Nagios plugin for SMARTd / smartmontools?

I've installed SMARTd / smartmontools on a server and I want to monitor it over Nagios. However on Monitoring Exchange, I see several plugins http://www.monitoringexchange.org/cgi-bin/page.cgi?g=...
8
votes
4answers
7k views

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 ...
7
votes
2answers
993 views

How to find files affected by reallocated sectors?

I have a Western Digital RE4 1.5TB that has just reallocated 56 sectors. Reallocated Sectors Count,140,193,193,OK,56,0,Enabled I want to know if it is possible to find out which are the files ...
7
votes
2answers
2k views

powershell: How to check if S.M.A.R.T is enabled on remote machines

I was attempting to get disk info of remote machines, including whether or not SMART is enabled on the drive by using the win32_diskdrive class. This is trickier than I thought. While it's easy ...
7
votes
3answers
5k views

Is there a way to share S.M.A.R.T. data over SNMP?

Is there a way to share S.M.A.R.T. data over SNMP? I'd like to be able to make cacti graphs of it and hook it up to Nagios. What I want to do is be able to get some statistics on my harddisks ...
6
votes
7answers
30k views

how to use a disk with high reallocated sector count?

After 3 years in 24x7 service a 1TB Seagate Barracuda ES.2 enterprise drive is showing signs of failure. S.M.A.R.T. reallocated sector count is high. Wikipedia article suggests that the drive can ...
6
votes
2answers
18k views

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 ...
6
votes
2answers
14k views

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 ...
6
votes
1answer
5k views

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=...
5
votes
6answers
2k views

SMART warns me but I don't trust it

I've got a server with four Samsung hard drives. All drives are the same model and have been bought together. The drives are SAMSUNG HE753LJ with firmware 1AA01113. I'm getting SMART errors but I ...
5
votes
4answers
5k views

How reliable is HDD SMART data?

Based on SMART data, you can judge the health of a disk, at least that is the idea. If I, for instance, run sudo smartctl -H /dev/sda on my ArchLinux laptop, it says that the hard drive passed the ...
5
votes
2answers
6k views

Is my hard drive about to die?

I have two hard drives set up as a RAID 1 array on my server (Linux, software RAID using mdadm) and one of them just got me this "present" in syslog: Nov 23 02:05:29 h2 kernel: [7305215.338153] ata1....
5
votes
2answers
1k views

Munin's smart plugin keeps reporting an error in the past because of the exit code

My hosting provider has inserted a hard drive into my server which seems to have had some sort of error in the past but a full offline smart check showed that everything is (about) ok at the moment. ...
5
votes
1answer
309 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....
5
votes
0answers
3k views

PERC MegaRAID S.M.A.R.T. Status is not matching smartctl's - looking for clues what's wrong with the HDD

I'm getting strange SMART error from MegaCli on Dell R720xd and PERC H710P with five 4Tb SATA drives in RAID5 /opt/MegaRAID/MegaCli/MegaCli64 -PDList -aALL gives me some "Failure Seq Event Number" ...
4
votes
6answers
13k views

Does this SMART selftest indicate a failing drive?

I'm wondering if the results of this SMART selftest indicate a failing drive, this is the only drive that comes up with 'completed: read failure' in the results. # smartctl -l selftest /dev/sde ...
4
votes
1answer
8k views

1TB Seagate Barracuda ST31000528AS - Unexpected “Offline uncorrectable sectors”

I bought a 1TB Seagate Barracuda 7200.12 - ST31000528AS drive about 18 months ago because it had a 5-year warranty, and used it alongside a Samsung Spinpoint under Ubuntu Server as one half of a ...
4
votes
2answers
264 views

Physical/portable Hard drive tester/diagnostics tool [closed]

Are there any tools that I can plug into a hard drive and perform diagnostics such as displaying if there are SMART errors? I work with a lot of commodity hardware and need to check if some of the ...
4
votes
1answer
1k views

How to access SMART attributes when using RAID with a Dell Perc 4e (LSI)

I can't easily shut down this windows server, so I'd like 'online' solutions. I tried the following unsuccessfully: Seatools Enterprise: caused a BSOD smartmontools: scan only showed virtaul RAID ...
4
votes
2answers
1k views

Bad sectors, S.M.A.R.T., SpinRite, firmware on platter and drive id questions

Is it possible for S.M.A.R.T. to give false readings (say I was fiddling with lots of recovery programs, transfers, so on and so forth) or is it absolutely a read-only direct correlation to the ...
4
votes
1answer
2k views

what's the purpose of SMART's captive test?

When testing hard disk with SMART (for instance using smartctl tool) I can do tests (for instance long test) in two modes: captive (also called foreground mode) or non captive. Non captive mode is ...
4
votes
3answers
2k views

Inexplicably slow Western Digital WD15EARS disk

I have four disks, of which two are WD15EARS, in a server and I'm trying to put the two WD15EARS's in Linux mdadm RAID, but for some reason, the array's performance is very slow (it syncs at about 15 ...
4
votes
2answers
12k views

Understanding the S.M.A.R.T. values from a Synology 1812+ device

I have a Synology 1812+ NAS with 8 3TB drives configured as RAID 5. Its running DSM 4.1. It was purchased to replace USB drives, consolidate storage and short term OS X backups using Time Machine. ...
3
votes
2answers
4k views

The best nagios plugin for SMART? [closed]

I've tried the best plugin for nagios to SMART monitoring. There are some, but only monitoring temperature. But with smartctl we can find more data. Do you have some better plugins with all data from ...
3
votes
3answers
378 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 ...
3
votes
1answer
304 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 ...
3
votes
1answer
148 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 (...
3
votes
2answers
1k views

Confirm disk is broken when it passes all diagnostics

I have a system with a potentially broken disk, but the disk passes all manner of diagnostics. I have been unable to confirm that the disk is broken. What are my options? I could just replace the ...
3
votes
1answer
6k views

S.M.A.R.T. (smart) attribute 190 failing on Seagate Backup Plus 4TB drive

I am using a Seagate Backup Plus 4TB drive attached over USB to a Linux box. The drive model is ST4000DX000-1CL160. When checking the S.M.A.R.T. attributes I get: $ sudo smartctl -a -d sat /dev/...
3
votes
2answers
978 views

Can't get any SMART or temperature data from HDDs

I have a PC with recently installed Gigabyte GA-X79-UD5 MB. I've encountered some weird problem with getting SMART data or temperature for HDDs. Every single tool I've tried in Windows 7 just can't ...
3
votes
1answer
58 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 ...
3
votes
2answers
1k views

smartctl not actually running self tests?

I want to run the smartctl self tests to check the health of the drives in my RAID array (PERC 5/i). The array is on sda and comprises six drives. I can check the status using sudo smartctl /dev/...
2
votes
3answers
3k views

HP Proliant Smart Array Controller P800 Battery replacement

I have a proliant server which requires a cache battery replacement. Can you please advise what are the implications if this is not replaced over time. many thanks
2
votes
4answers
370 views

Is there a way to read SMART attributes for drives in a SAN?

We are running an SSD array in a SAN, and the performance is great. But we need to monitor the write endurance SMART attributes so that we can determine when the drives are close to wearing out. We ...
2
votes
2answers
864 views

Is my HDD falling?

I tested my HDD with command: smartctl -t long /dev/sda I checked status of test with command: smartctl -l selftest /dev/sda This is the output: smartctl 5.42 2011-10-20 r3458 [x86_64-linux-2.6....
2
votes
2answers
436 views

Why does the temperature in a pair of disks under RAID 1 showing a large temperature difference?

It appears quite strange to me that temperature readings derived from SMART for one disk is different from its twin in a RAID 1 configuration by as much as 9°C: # smartctl -d scsi -A /dev/sg1 === ...
2
votes
2answers
2k views

Why are SMART error rates going down?

I have a hard drive that's part of a Linux software raid5 array. SMART has reported that its multi_zone_error_rate was 0, then 1, then 3. So I figured I better start backing up more frequently and ...
2
votes
2answers
439 views

nagios: alternatives to SMART disk checking?

I'm attempting to repurpose some older Dell PE 29xx machines. These have PERC RAID controllers so the SMART testing isn't working. Is there an SNMP alternative or do I need to start slogging through ...