Adding an old software raid array to a software raid installation boot problems. As the smartmontools bundle of programs is one of the main ways to check hard drive health under linux, theres a good chance even the most unknown of distributions will be able to install it. We will also learn how to replace and remove faulty devices from software raid and how to add new devices to raid. Access smart data from devices behind megaraid software. Dec 12, 2017 gsmartcontrol a gui tool to check hddssd health on linux december 12, 2017 updated october 21, 2018 by ivo ursino hardware, open source tools gsmartcontrol is a gui alternative for smartctl, a tool for controlling smart data on hard disk drives and solid state drives. My guess is that smartctl doesnt know how to properly talk through a hardware raid controller. If you can, set up a lab, force a raid 6 to fail in it, and then recover it.
Monitoring tools is a set of utility programs smartctl and smartd to control and monitor computer storage systems using the selfmonitoring, analysis and reporting technology s. How to use smartctl with cciss hewlett packard enterprise. Darwin mac os x but with no scsi support yet, freebsd, linux, netbsd. Using smartctl to get smart status information on your. It can be used to check hard disk, sas disk, ssd and also check disk on raid conroller such as hp smart array controller, lsi megaraid dell perc. Raid controllers typically simulate a logical disk for each array of. Install smartmontools and add its bin folder to path in environment variables or specify absolute path to smartctl binary in zabbix smartctl. Smartctl monitoring and analysis tool for hard drive linuxtechi. My next layer would be mdraid, the linux software raid.
In many cases, these utilities will provide advanced warning of disk degradation and failure. We go the through the process of raid recovery and restoration and learn raid recovery on the command line because it become so. As an alternative the smartctl from the smartmontools package could be used. If this is a hardware raid setup i assume so then you have to get the raid tool from the hardware manufacturer and use it to determine raid status. One of the three drives is a hot spare and the other two are active in the raid sets.
Linux use smartctl to check disk behind adaptec raid. The i info option prints a variety of information about a device, including whether smart is available and enabled. Arch linux sudo pacman s smartmontools fedora sudo dnf install smartmontools opensuse sudo zypper install smartmontools generic linux. According to user reports, some windows drivers for lsi megaraid. Additionally, you are referencing the logical drives with your dev.
In addition to this conventional way the smartmontools also support querying smart attributes of hard drivesssds, which are connected to an lsi raid controller. You need to use the following syntax to check sata or sas disk which are typically simulate a logical disk for each array of physical disks to the os. In order to overcome this problem, one should look towards real monitoring solutions. The overflow blog how the pandemic changed traffic trends from 400m visitors across 172 stack. Apr 14, 2015 installing smartmontools package delivers two programs to your system. Smartmontools is a set of applications that can test hard drives and read their hardware smart statistics. Centos semimanual p2v vmware esxi software raid to nonsoftware raid, boots to kernel panic. You have now successfully replaced a failing raid 6 drive with mdadm. Centos semimanual p2v vmware esxi software raid to non software raid, boots to kernel panic. Replacing a failing raid 6 drive with mdadm enable sysadmin. I want to use smartd part of smartmontools to monitor the health of the drives and report errors to syslog which i monitor using logcheck.
We will also see the step wise command how to stop and remove raid device by removing raid10 device here. How to check smartctl error for megaraid controller. It can be used to check hard disk, sas disk, ssd and also check disk on raid conroller such as hp. Raid volumes in this example are marked by the string vendor. The smartmontools package contains two utility programs smartctl and smartd to control and monitor. Today were going to learn about lvm, the logical volume manager, and smartctl, the excellent hard disk healthmonitoring utility. Hardware raid vs software raid, is hardware raid portable. We can use full disks, or we can use same sized partitions on different sized drives. Hardware raid controllers and software raid implementations are designed to recognise a drive which does not respond within a few seconds, and mark it as unreliable, indicating that it should be withdrawn from use and the array rebuilt from parity data. The span size of the last span of a disk is adjusted such that the total number of spans to check the full disk will not be changed by future uses of t. Fortunately, some readers passed on some good information on what raid 10 is, and what sets linux s implentation apart. Detecting, querying and testing this section is about life with a software raid system, thats communicating with the arrays and tinkertoying them.
Aug 27, 2019 you have now successfully replaced a failing raid 6 drive with mdadm. Monitor disk health using smartd in smartmontools on a high availability software raid 1 server softwareraid mdadm raid1 smart. Smartctl check hard disk behind 3ware raid card last updated june 25, 2011 in categories freebsd, linux, storage i ve centos linux and freebsd based server running using 3ware 9650se2lp raid card. Odds are that if youre using raid 6, it will happen eventually. Anyway, d marvell is for outdated ata based controller and will not work with hardware raid.
Smart is an acronym for selfmonitoring, analysis and reporting technology. If you are going after high performance, you should be using ssds or hybrid drives, and make sure you match the performance of the drives to the performance of the bus. This section will mention some of the hardware concerns involved when running software raid. Jul 11, 2018 linux use smartctl to check disk behind adaptec raid controllers last updated july 11, 2018 in categories centos, debian ubuntu, linux, redhat and friends, storage, suse i can use the smartctl d ata a devsdb command to read hard disk health status directly connected to my system. With this command, you can get a quick glimpse of your ssd health. Main page server hardware raid controllers lsi main page server software linux linuxstorage. Install python3 for all users, adding it to path during installation. Smartmontools for scsi devices the linux scsi generic. Main page server software linux linuxstorage smartmontools. Lvm creates logical storage volumes, and allows you to increase the size of your volumes painlessly on live filesystems. Of course, how much mileage you get from the command will depend upon what makemodel of ssd.
How to check hard drive health on linux addictivetips. I feel like ive been seeing a lot more threads on the linuxraid mailing list recently where peoples arrays have broken, they need help putting them back together because they arent familiar with what to do in that situation, and it turns out that theres nothing much wrong with the devices in question other than device timeouts. Analyzing a faulty hard disk using smartctl thomaskrenn. The smartmontools package contains two utility programs smartctl and smartd to control and monitor storage systems using the selfmonitoring, analysis and reporting technology system smart built into most modern atasata, scsisas and nvme disks. There is a number of free software, open source, and commercial solutions available which can be used for software raid monitoring on linux. Reporting smart status of raid disks it tips and tricks. Smartmontools is available for the these operating systems.
In this post we will discuss some practical examples of smartctl command, use below steps to install smartctl, if it is not installed on your linux box. Gsmartcontrol a gui tool to check hddssd health on linux. Mar 11, 2008 you can run more extensive tests and get even better warnings of impending troubles. Dec 24, 2019 smartmontools is a set of applications that can test hard drives and read their hardware smart statistics. You can find the serial number of the disk in the smartctl output and match it against the physical drive. References to ide and scsi have been deleted, all recent drives are sata. Access smart data from devices behind megaraid software stack. You need to install adaptec storage manager for your linux distribution as per installed raid card. A search on freshmeat should return a good number of matches. Smartmontools with megaraid controller thomaskrennwiki. Smartctl is useful on physical linux servers where smart disks can be checked for errors and extract info regarding the disks that are used behind the hardware raid. Linux software raid and drive timeouts the ongoing struggle. Browse other questions tagged linux raid lsi smartctl or ask your own question.
For things like simple mirroring raid1 the data just needs to be written twice and the drive controller can do that itself with instructions from the kernel so no need to. Use smartctl to check disk behind adaptec raid controllers. Jun 25, 2011 linux check health of 3ware raid array. Besides the difference in raid configuration the controllers are not the same.
After some replacement tests, it seems that freebsd is seeing the disk the other way. Under linux and freebsd, to look at ata disks behind 3ware scsi raid controllers, use syntax such as. Install smartmontools and add its bin folder to path in environment variables or specify absolute path to smartctl binary in zabbixsmartctl. If this is software raid or a hardware utility is not available you can use the hdparm and dmraid tools. Note that when it comes to md devices manipulation, you should always remember that you are working with entire filesystems. Control and monitor utility for smart disks linux man. Adding an old softwareraid array to a softwareraid installation boot problems. This is a long process, degrades performance, and if more drives fail under the resulting. Ive centos linux and freebsd based server running using 3ware 9650se2lp raid card.
Using smartctl to get smart status information on your hard. If you configured the raid via software raid mdadm the use that. Smartctl is a command line utility in linux that perform smart tasks such. Hopefully, you will never need to do this, but hardware fails. So if you use freebsd behind a cciss hp smartarray raid controller, be extra careful and dont trust the cciss numbering. From what i read, mdraid has no timeouts on its own but relies on the lower layer to timeout commands. In this example, we will show how to analyze a defective hard disk. The hard disk in this example can no longer read several sectors and is therefore defective. It works fine and i am able to boot after disconnecting any single hdd. The default scsi timeout value is 90 seconds for kernel 3. Smartctl monitoring and analysis tool for hard drive. Jul 19, 2017 the smartmontools package contains two utility programs smartctl and smartd to control and monitor storage systems using the selfmonitoring, analysis and reporting technology system smart built into most modern atasata, scsisas and nvme disks.
The integer n range 1 to 128 denotes the channel slot and e range 1 to 8 denotes the enclosure. Linux use smartctl to check disk behind adaptec raid controllers last updated july 11, 2018 in categories centos, debian ubuntu, linux, redhat and friends, storage, suse i can use the smartctl d ata a devsdb command to read hard disk health status directly connected to my system. We just need to remember that the smallest of the hdds or partitions dictates the arrays capacity. Smartctl requires root permissions to run and so must be run by the root user or a user with sudo privileges. How to check disk health using smartmontools on linux. In our recent installments we learned a whole lot about linux software raid. Linux use smartctl to check disk behind adaptec raid controllers. How to create a software raid 5 in linux mint ubuntu. Aug 08, 2014 raid volumes in this example are marked by the string vendor. The smartctl command line tool of smartmontools is primarily used to query smart attributes of hard drives and ssds that are connected directly to the motherboard or to an hba on a server. Apr 28, 2017 how to create a software raid 5 on linux.
Dgvd type state access consist cache scc size name. For disks behind areca sata raid controllers, you need devsg29 note that smartmontools interacts with the areca controllers via a scsi generic device. How to check hard drive disk health in gnulinux ghacks. I want to check the hardware raid status of my host. If raid is in use, smartctl can still produce the goods, but it needs to be told something about the raid setup the technology in use, the slot which houses the physical disk of interest, and the linux device corresponding to the virtual disk of which that physical disk is part. How to check smartctl error for megaraid controller linux. All linux distributions provide the smartmontools package, which contain the smartctl program used to display smart information from attached drives. Under linux, you can read the smart selfmonitoring, analysis and reporting technology information from the hard disk using smartctl. The allowed values of l are from 1 to 4 inclusive, m are from 1 to 8 inclusive and n from 1 to 4 if pmport available. For things like simple mirroring raid1 the data just needs to be written twice and the drive controller can do that itself with instructions from the kernel so no need to get cpu involved at all.
What are linux scsi command timeouts and is the default. I know how to check hard disk behind adaptec raid controllers, but how do i look at ata sata disks behind 3ware scsi raid controllers using smartctl command. It seems that linux see only hardware raid marvell raid vd and smartctl do not have support for it. I know there is a way to check it from the server vendor has their own command line utility for checking the performing of all the physical devi. The scripts are the result of discussions on the linuxraid mailinglist, but it may be best to ship the scripts with smartctl already possibly together with a default nonredundantdisk udev rule to ensure proper default timeouts, and let redundancy controlling packages like mdadm, lvm, btrfs etc. Smartmontools is open source tools to check your disk health.
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