Hardware :: How To Check Raid Health

Apr 5, 2010

i have created RAID on EDGE server but when i run this command to check RAID status #megacli -CfgDsply -aALL |less

its shows nothing so how can i come to know whether my RAID is degraded or online also in opsview (monitoring tool) i have enable mega raid its shows ok but DISK showing 0

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Hardware :: Installed But Unable To Check Raid Health?

Apr 20, 2010

i have edge server. raid(5) have been installed but not able to check raid health. using command line able to.but using monitoring tool opsview, showing error -NRPE: Unable to read outpumachine Arch- 64 bit centos -5.2
package installed -MegaCli-2.00.15-1.i386.rpm

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General :: How To Check The Health Of A Hard Drive

Aug 2, 2010

My SATA drive started clicking and I was unable to access the data. It was not clicking loudly though, like a drive that has already gone bad. After tightening the connections to the hard drive, it stopped clicking and I was able to access the data again. I have started to move files off of the drive, but I think this drive might still be in good health. I didn't find any data corruption and I haven't had any trouble accessing any files. I have never had an SATA drive fail before so I'm thinking that it could have just been the loose connections that was causing the problem. What tests can I run on this drive to find out how healthy it is?

This is the hard drive in question: HITACHI Deskstar T7K250 HDT722525DLA380 (0A31636) 250GB 7200 RPM 8MB Cache SATA 3.0Gb/s 3.5" Hard Drive -Bare Drive

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General :: Script To Check Server Health Checkup?

Jul 18, 2010

I need a script to check Server health checkup, includes: CPU utilization,process running,utilization taken by processes,free space...

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Fedora Hardware :: Check The State And Health Of The Laptop Battery?

Jun 6, 2010

How do I check the state and health of the laptop battery. In Ubuntu it was just a simple task of clicking on the battery icon on the task bar and your info would come up. With Fedora 13 nothing happens..

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Hardware :: How To Check RAID Status

Jul 15, 2009

We have a Dell Poweredge 1750 server with 2 harddrives in RAID 1 running Debian Etch. Yesterday one of the hardrives stopped working but no error message appeared in syslog. The only indication was the amber LED diode. Is there a software way how to check that both disks are OK?

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Fedora :: Weekly Raid-check Never Checks Md1?

Feb 21, 2011

I have three raid volumes, md0, md1, and md2. The weekly raid-check cron always causes md0 and md2 to get checked but never md1.

/etc/cron.weekly/99-raid-check

Volumes md0 and md1 are on the same 8 disks. Volume md0 is a small raid1 across all 8 disks for boot and md1 is a raid5 that occupies the rest of those 8 disks. Volume md2 is a raid5 on a separate set of 6 drives. When I check /var/log/messages* I see that every Sunday md0 and md2 get checked but md1 is never checked. However, when I run 99-raid-check manually, all three volumes get checked. There is clearly something different between how crond runs that script and how I run it, but I can't imagine what that would be.

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Ubuntu :: Manually Initiate RAID Consistency Check?

Apr 1, 2010

I have a mdadm RAID5 configuration on my Ubuntu Server (64-bit). In the first week after I configured the RAID, mdadm itself initiated a consistency check automatically. But after that, it won't check the RAID anymore. (the server isn't on 24/7, normally a few hours a day)I've read a post for manually initiating consistency check with these commands

Code:
sudo su -
echo check >> /sys/block/md0/sync_action

[code].....

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Ubuntu :: Check The Status Of Software Raid Array?

May 21, 2011

In Zentyal, it showed me active drives, if the array was degraded, and if there was any syncing happening when the array was building. How can I check that without Zentyal? Is there a terminal command or an application I can install to tell me the same information?

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General :: Check On Hard Drives In RAID 1 Array?

Feb 23, 2010

I'm renting a dedicated server with a company that claims that the server has 2 hard drives in a software RAID 1 array, but I need to make sure that the server really has the 2 HDD, and the size of the 2nd drive... how to do that ?? system is Centos 5.3

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Hardware :: Software - Enable Raid Check In Opsview ?

May 5, 2010

We are using opsview monitor tool, and created software raid one of our server. now wants to enable raid check in opsview. how to go for it. pleease help.

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Red Hat / Fedora :: Unable To Replace Drive In RAID 5 After Filesystem Check Freezes?

Apr 28, 2011

I'm a bit of a Linux newbie, but I did manage to set up the following RAID-5 system:1x 500GB system drive on ATA IDE4x 1TB SATA drives in software RAIDLinux = Fedora 13So here's what happened. I set up the system to send me an email every time the mdadm stat file changed, so it would send me emails when in periodically ran a self-test. I was away and noticed that the self-test was going incredibly slow (usually took 8 hours...was on course for taking 250 days!) A colleague decided to just reboot the system.Afterwards, the system would not boot and, while all 5 drives were connected, would stop at an endlessly scrolling error message of: Code: ata4.01: exception Emask 0x0 SErr 0x0 action 0x0

ata4.01: BMDMA stay 0x64
ata4.01: failed command: READ DMA
ata4.01: (a bunch of hex numbers)

[code]....

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General :: Need Tool For HDD Health Monitoring

Feb 12, 2011

I wonder if there is any tool that can read health of my HDD's? There are tons in windows but what options are there in Linux? I would really hope there is a tool a can install without using terminal cause I dont have web access for the Xubuntu right now. If anyone aware of such a tool, preferable a .deb file so I can easily install without hazzle. Also I hope tools like that are not littered with tons of dependencies. Cause those dependencies are a major challenge without online connection. If there exist any smart terminal commands that will let med check health status pls let me know and pls write down the command. I have enabled the s.m.a.r.t in BIOS.
I have 4 drives running Raid 0 if that matters.

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Software :: Rebuilt RAID Array With Old Mount Points Present - File System Check Fails On Boot

Dec 2, 2009

I have one hard disk for my root partition and a disk array on a separate mount point. I rebuilt my disk array, but I didn't delete my original mount points beforehand because I was hoping it would just "pick up". So now when I boot up, the OS tells me that the filesytem check fails because it can't find the array to map to the mount point. I know that I need to edit my /etc/fstab and remove the line that defines my mount point on the disk array. But it appears to be read only filesystem when I am in repair mode. I can't force the write with vi.

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Ubuntu :: Way To Test 'health' Of Drive Before Spend Hours Rebuilding Filesystem?

Jan 17, 2010

I was unable to boot my computer because bad blocks in my drive 'appeared' over my current and most used partition, for 9.10. I discovered there were 101 bad blocks on the drive, so I called western digital and had them send me a new one. In the meantime, running fsck on the drive managed to sort out the bad blocks for the time being. The replacement drive arrived on Friday, and since then, I've been trying to clone my current drive to the replacement. Using Clonezilla, I kept getting the error "bad partition table on /dev/sdb". Alright, I tried a bit-by-bit transfer using dd, but for some reason, the transfer fails on the last partition, leaving the replacement drive unbootable. What do you think I should do? Does it sound likethet sent me another faulty drive, or am I just doing something stupid? I've copied my drive before, but ive never had these problems- i just popped in Clonezilla and away it went.

I'm really leary about this drive, I have many important files for school and TONS of music. The school files, I can back up, and the music could be shuffled to another external drive, but I reallydo no want to go through all of the time and effort to move it to a new drive that may already be failing. Does anyone know what I should do? Is there some way to test the 'health' of the drive before I spend hours rebuilding my filesystem?

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Ubuntu Servers :: RAID-5 Recovery (spare/active) / Degraded And Can't Create Raid ,auto Stop Raid [md1]?

Feb 1, 2011

Could any RAID gurus kindly assist me on the following RAID-5 issue?I have an mdadm-created RAID5 array consisting of 4 discs. One of the discs was dropping out, so I decided to replace it. Somehow, this went terribly wrong and I succeeded in marking two of the drives as faulty, and the re-adding them as spare.

Now the array is (logically) no longer able to start:

mdadm: Not enough devices to start the array.Degraded and can't create RAID ,auto stop RAID [md1]

I was able to examine the disks though:

Code:
root@127.0.0.1:/etc# mdadm --examine /dev/sdb2
/dev/sdb2:
Magic : a92b4efc
Version : 00.90.00
code....

Code:
mdadm --create --assume-clean --level=5 --raid-devices=4 /dev/sda2 /dev/sdb2 /dev/sdc2 /dev/sdd2
As I don't want to ruin the maybe small chance I have left to rescue my data, I would like to hear the input of this wise community.

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Debian :: Disk Health Warning - Disk Part Of RAID5 Array

Feb 17, 2016

I received the following error when I got home from work today. If this was a windows environment, my first inclination would be to boot off my dvd and then run a chkdsk on the drive to flag any bad sectors that might exist. But there's a complication for me.

Code: Select allThis message was generated by the smartd daemon running on:
   host name:  LinuxDesktop
   DNS domain: [Empty]

The following warning/error was logged by the smartd daemon:
Device: /dev/sdc [SAT], 1 Currently unreadable (pending) sectors
Device info:
WDC WD5000AAKS-65V0A0, S/N:WD-WCAWF2422464, WWN:5-0014ee-157c5db9a, FW:05.01D05, 500 GB
For details see host's SYSLOG.

You can also use the smartctl utility for further investigation.The original message about this issue was sent at Sun Feb 14 13:43:17 2016 MST.Another message will be sent in 24 hours if the problem persists.

From gnome-disks
Code: Select allDisk is OK, 418 bad sectors (28° C / 82° F)

I did a bit of reading and it seems that most people suggest using badblocks to first get a list of badblocks from the drive and save it to a file. Then use e2fsck to then mark the blocks listed in the badblocks file as bad on the hard drive. My problem here is that this drive is part of a RAID5 array that hosts my OS. I wanted to confirm if this was still the correct process.I boot to my Live Debian disk, stop the raid array if it's active. Then run badblocks + e2fsck commands on the drive in question and then reboot.

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Debian :: Migration Check List - To Check - Prepare Or Reconfigure

Feb 3, 2010

I am new to Debian but not Linux-based systems. I have been experimenting a lot with Debian Lenny/Squeeze. I am growing more comfortable each day with the Debian design. Yet there remain many unexplored areas. I am creating a migration check list. Things to check, prepare, or reconfigure when moving from one Linux-based system to Debian.

I have a good computer background and my current check list probably is fairly good. Yet I would appreciate input and opinions from experienced Debian users of things to watch in such a migration. Login defs, passwd/group files, different directory locations, keymaps, services and daemons, etc. I am not too concerned with the desktop as I plan to stick with KDE 3.5 for a while and I can basically move those settings across.

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Programming :: Check Menu & Check List In Utility Dialog?

Aug 19, 2010

I want to put check menu & check list in utility dialog.i dont know how i do this

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Ubuntu :: Mdadm Raid + GRUB = Not Booting - Error: Unsupported RAID Version: 0.91

Jul 18, 2011

I have a raid5 on 10 disk, 750gb and it have worked fine with grub for a long time with ubuntu 10.04 lts. A couple of days ago I added a disk to the raid, growd it and then resized it.. BUT, I started the resize-process on a terminal on another computer, and after some time my girlfriend powered down that computer!
So the resize process cancelled in the middle and i couldn't acess any of the HDDs so I rebooted the server.

Now the problem, the system is not booting up, simple black with a blinking line. Used a rescue CD to boot it up, finised the resize-process and the raid seems to be working fine so I tried to boot normal again. Same problem. Rescue cd, updated grub, got several errors: error: unsupported RAID version: 0.91. I have tried to purge grub, grub-pc, grub commmon, removed /boot/grub and installed grub again. Same problem.

I have tried to erased mbr (# dd if=/dev/null of=/dev/sdX bs=446 count=1) on sda (ide disk, system), sdb (sata, new raid disk). Same problem. Removed and reinstalled ubuntu 11.04 and is now getting error: no such device: (hdd id). Again tried to reinstall grub on both sda and sdb, no luck. update-grub is still generating error about raid id 0.91 and is back on a blinking line on normal boot. When you'r resizeing a raid MDADM changed the ID from 0.90 to 0.91 to prevent something that happend happened. But since I have completed the resize-process MDADM have indeed changed the ID back to 0.90 on all disks.

I have also tried to follow a howto on a similar problem with a patch on [URL] But I cant compile, various error about dpkg. So my problem is, I cant get grub to work. It just gives me a blinking line and unsupported RAID version: 0.91.

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General :: Migrate An Installed Ubuntu System From A Software Raid To A Hardware Raid?

Jun 29, 2011

migrate an installed Ubuntu system from a software raid to a hardware raid on the same machine? how would you go about doing so?

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Server :: How Long Does Hardware Raid Card (raid 1) Take To Mirror 1 TB Drive (500gb Used)

Mar 22, 2011

How long does hardware Raid card (raid 1, 2 drives)take to mirror a 1 TB drive (500gb used)?Is there a general rule of thumb for this?4 hours? 12 hours? 24 hours?

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CentOS 5 Hardware :: Connect A RAID Box To The Server Via LSI 8880EM2 RAID Controller

Aug 3, 2010

I am trying to connect a RAID Box to the server via LSI 8880EM2 RAID controller.The raid box is FUjitsu Externus DX60 with raid 1 configured.The server is Fujitsu Primergy SX300 S5 with LSI 8880EM2 RAID card.The external raid box is being recognised by the raid controllers bios.

The server runs CentOS 5.5 64bit. I have installed the megaraid_sas driver from LSI website and MegaCLI utility but CentOS still fails to see the box.MegaCLI utility, when launched from CentOS, recognises the raid box, CentOS does not(no mapping being created in /dev).

I have also tried to create a logical RAID0 HDD on one physical HDD(as seen by MegaCLI) with MegaCLI utility in CentOS.The result was success and the new logical drive could have been used, but when restarting the server, the controllers' bios fails with an error (not surprised(one logical RAID0 on one physical HDD)) and configuration is being erased.

Has anyone tried connecting 8880EM2 controller to a raid box with raid configured on the box, running it all under CentOS and what were the results.

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Ubuntu Installation :: Dual Boot - Win 7 And 10.10 On Raid 0 - No Raid Detect

Nov 26, 2010

I have installed Ubuntu on my m1530 since 8.04 and currently dual boot Win7 and 10.10. I would like to dual boot on my PC, but I have run into a problem. I am not a pro at Ubuntu, but this problem I can not solve by reading forums like I have in the past.

I realize this is a common problem, but I have noticed people having success.

I have a M4A87TD EVO MB with two Seagate drives in Raid 0. (The raid controller is a SB850 on that MB) I use the raid utility to create the raid drive that Windows7x64 uses. I have 2 partitions and 1 unused space. Partition 1 is Windows, partition 2 is for media, and the remaining unused space is for Ubuntu.

I am running ubuntu-10.10-desktop-amd64 off a Cruzer 16GB flash drive that was installed via Universal-USB-Installer-1.8.1.4.

My problem like so many others is that when I load into Ubuntu, gparted detects two separate hard drives instead of the raid. I read that this is because kpartx is not installed on 10.10. I then went in LiveCD mode and downloaded kpartx from Synaptic Manager. Gparted still reported two drives. I opened terminal and run a few commands with kpartx. I received an error. (Forgive me I didn't write it down, but I believe it said something about a communication error. I will try again later and see.)

Currently I am reflashing the Cruzer with a persistence of 4GB. I am not familiar with this process, but I understand that my LiveCD boot will save information I download to it. I decided to try this method because I was going to install kpartx and reboot to see if this made a difference.

I am looking for any suggestions on a different method or perhaps someone to tell me that the raid controller or some hardware isn't supported. I did install ubuntu-10.10-alternate-amd64 on my flash drive, but fail to get past detecting my CD-ROM drive since it's not plugged in. If this method is viable, I will plug it in. I also watched the ..... video were a guy creates Raid 0 with the alternated CD, but it wasn't a dual boot and didn't use a raid controller from a MB.

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Hardware :: RAID - Create RAID 1 Without Deleting Data?

Jul 18, 2009

how can I create RAID 1+0 using two drives (one is with data and second one is new). Is it possible to synchronize data drive with empty drive and create RAID 1+0 ?

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Slackware :: Windows Raid-O Install Virtualbox, Will Slackware Install Raid-o Without Raid Driver?

Feb 28, 2011

If I have a windows installed in raid-0, then install virtualbox and install all my linux os,s to virtualbox will they be a raid-0 install without needing to install raid drivers?

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Ubuntu :: Converting RAID 1 To RAID 5 System

Jun 12, 2010

I have two 1TB hard drives in a RAID 1 (mirroring) array. I would like to add a third 1TB drive and create a RAID 5 with the 3 drives for a 2TB system. I have ubuntu installed on a separate drive. Is it possible to convert my RAID 1 system to a RAID 5 without losing the data? Is there a better solution?

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CentOS 5 Hardware :: RAID Or Non-raid HBA Recommendation?

Dec 10, 2009

I am going to be using CentOs 5.4 for a home storage server. It will be RAID6 on 6 x 1TB drives. I plan on using an external enclosure which is connected via two SFF-8088 cables (4 drives a piece). I am looking to try and find a non-RAID HBA which would support this external enclosure and allow to use standard linux software raid.

If this is not an option, I'd consider using a hardware based raid card, but they are very expensive. The Adaptec 5085 is one option but is almost $800. If that is what I need for this thing to be solid then that is fine, I will spend the money but I am thinking that software raid may be the way to go.

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Ubuntu Installation :: Dual Boot SSD Non Raid - 1 Terabyte Raid 1 Storage "No Block Device Found"?

Sep 15, 2010

It's been a real battle, but I am getting close.I won't go into all the details of the fight that I have had, but I've almost made it to the finish line. Here is the set up. ASUS Z8PE-D18 mother board 2 CPU, 8 Gig Ram. I recently added an OCZ Agility SSD, defined a raid 1 virtual disk on the 1 terabyte WD HDD drives, which will holds all of my user data, the SSD is for executables.The bios is set to AHCI. Windows 7 installed fine, recognizes the raid VD just fine.

I installed Ubuntu 10.04 by first booting into try and mode, then opening a terminal and issuing a "sudo dmraid -ay" command. Then performing the install. I told it to install the raid components, and told it to let me specify the partitions manually. When setting up the partitions, I told it to use the free space I set aside on the SSD from the Windows 7 install as ext4 and to mount root there. Ubuntu installed just fine, grub2 comes up just fine, and Windows 7 boots with out a hitch, recognizing the mirrored partition as I indicated previously. When I tell grub to boot linux however, it pauses and I get the "no block devices found" message. It will then boot, but it does not recognize the raid array. After Ubuntu starts up I can run "dmraid -ay" and it recognizes the raid array, but shows the two component disks of the raid array as well. It will not allow the component disks to be mounted, but they show up which is annoying. (I can live with that if I have to)

I have fixed a similar problem before by setting up a dmraid script in /etc/initramfs-tools/scripts/local-top ... following the instructions found at the bottom of this blog:[URL].. To recap: My problem is that after grub2 fires up Ubuntu 10.04.1 LTS (Lucid Lynx), it pauses, and I get "no block devices found" It then boots but does not recognize the raid array untill I manually run "dmraid -ay". I've hunted around for what to do but I have not found anything. It may be some timing issue or something, but I am so tired of beating my head against this wall.

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Server :: Convert Raid 1 To Raid 10?

Jul 21, 2011

I am looking to convert a raid 1 server I have to raid 10. It is using software raid, currently I have 3 drives in raid 1. Is it possible to boot into centos rescue, stop the raid 1 array. Then create the raid 10 with 4 drives, 3 of which still has the raid 1 metadata, will mdadm be able to figure it out and resync properly keeping my data? or is there a better way to do it?

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