I O Error On Device Dm
The server goes dead at night requiring a forced reboot or power cycle to restore service. The previous partitioning had a small partition for LVM an then an ordinary partition for non-LVM filesystem, and I think the codes were 8E00 and 8300 respectively. What could make an area of land be accessible only at certain times of the year? Anyone have this errors?, May be I can try to install Fedora whit no LVM and see if this solve the problem. More about the author
Cleared from lvmetad cache.Aug 10 13:47:05 smaug systemd: Stopped LVM2 PV scan on device 8:4.Aug 10 13:47:05 smaug mysqld_safe: 150810 13:47:05 mysqld_safe Number of processes running now: 0Aug 10 13:47:05 smaug Anyway, I hope someone finds this info useful, and saves them from the panic and frustration I endured. Password Linux - Software This forum is for Software issues. Thanks,lan Please provide some pointers on why we are seeing this behavior or is this a known thing at this point in time? anchor
Buffer I/o Error On Device Dm-2 Logical Block
One of them is getting the error: Oct 30 10:57:07 alpha01 kernel: lost page write due to I/O error on dm-3 Oct 30 10:57:07 alpha01 kernel: Buffer I/O error on device In order to discover the errant volume names, I first ran "dmsetup info" and compared that with the actual devices present on the system. If it helps, I have uploaded `getinfo.sh disk` output to: http://pastebin.com/1YiDmQVq Top TrevorH Forum Moderator Posts: 16870 Joined: 2009/09/24 10:40:56 Location: Brighton, UK Re: CentOS server freeze/crash on megaraid rebuild, analysis
Below is the problem description and steps to reproduce. Clarified butter for gumbo roux Meaning of grey and yellow/brown colors of buildings in google maps? You are currently viewing LQ as a guest. Lost Page Write Due To I/o Error On Dm-0 Past life of Satyabhama Should a spacecraft be launched towards the East?
When you run fdisk, each partition has a type flag.Partitions of type 'fd' are assumed to be software RAID partitions.Having partitions of type 'fd' will trigger a mdraid assemble attempt.Show us Kernel Buffer I/o Error On Device Dm-2 Logical Block It is a hardware RAID controller with no other separate devices, and for all intents and purposes a very straightforward CentOS install./proc/mdstat doesn't report anything useful:# cat /proc/mdstatPersonalities : unused devices: Share a link to this question via email, Google+, Twitter, or Facebook. http://kb.eclipseinc.com/kb/can-i-safely-ignore-io-errors-on-dm-devices/ pvs shows the PV as unknown device.
With active/passive arrays, a controller is considered the main for each LUN, while the other controller is waiting and acts as a backup plan. Buffer I/o Error On Device Dm-7 Logical Block When using PowerPath, these errors are suppressed. FedoraForum.org is privately owned and is not directly sponsored by the Fedora Project or Red Hat, Inc. I have a one huge device so gdisk is needed here.
Kernel Buffer I/o Error On Device Dm-2 Logical Block
Top Display posts from previous: All posts1 day7 days2 weeks1 month3 months6 months1 year Sort by AuthorPost timeSubject AscendingDescending Post Reply Print view 13 posts 1 2 Next Return to “CentOS have a peek at these guys How to know if a meal was cooked with or contains alcohol? Buffer I/o Error On Device Dm-2 Logical Block To determine if the dm device points to a snapshot LV: First, locate the "dm" device number in the logs (in our example, 20): [[email protected] ~]# grep "I/O error" /var/log/messages May Buffer I/o Error On Device Dm-3 Is everything okay> Detect damaged audio CD The 2nd link provides details about another tool, safecopy for attempting to recover data from a failed/failing drive.
Unfortunately the lvm command simply returned a "device busy" error, so I found myself back at square one. my review here Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the UNIX is a registered trademark of The Open Group. Are leet passwords easily crackable? Buffer I/o Error On Device Dm-0 Logical Block Redhat
Nest a string inside an array n times Why mount doesn't respect option ro Heisenberg's Uncertainty Principle Must subgroups sharing a common element be nested in each other? When I could get to the system, I edited /usr/lib/udev/rules.d/65-md-incremental.rules to disable the md maintenance in hopes that would prevent future outage. The / partition of the KVM guests are disk images but with one particular guest that will have higher i/o requirements, I've added a 2nd HDD to the VM which is click site Registration is quick, simple and absolutely free.
Maybe there is some automated process that triggers the "LVM2 PV scan" that I should consider?Here are my log outputs ...DMESG:[143476.406788] megaraid_sas: scanning for scsi0...[143476.460051] sd 0:2:0:0: [sda] Synchronizing SCSI cache[143476.783166] Buffer I/o Error On Device Logical Block I am equally confused. I typically pull the drive out of the system and run it standalone.
The access can be a read or write attempt.
The 0x20000 errors you are seeing corresponds to DID_BUS_BUSY error. I'd never played around with device mapper using the dmsetup command directly before, since I'd never needed to use anything other than the higher level vg* and lv* commands, but there's It looked like I'd have to solve this problem the really old-fashioned way ... Lost Page Write Due To I/o Error On Dm-2 Main Menu LQ Calendar LQ Rules LQ Sitemap Site FAQ View New Posts View Latest Posts Zero Reply Threads LQ Wiki Most Wanted Jeremy's Blog Report LQ Bug Syndicate Latest
Thank you! the soft links to the actual block devices were broken. I wonder if this thread should be transferred to the CentOS hardware forum.I suffered a disk fail in the megaraid RAID set this weekend, and so it rebuilt automatically on the http://upintheaether.com/o-error/i-o-error-on-device-sr1.php Not stopping it may take long time to reproduce the problem. 3.
At bootup, the kernel's SCSI mid-layer scans all paths to find devices. The time now is 12:30 PM. Browse other questions tagged hard-drive kvm-virtualization lvm software-raid drive-failure or ask your own question. Word for destroying someone's heart physically Can a GM prohibit players from using external reference materials (like PHB) during play?
I assume you're not using queue_if_no_path?