I have the H8dmu Supermicro mother board with the MCP55 RAID. CentOS 5 is detecting the four hard drives separately. The operating system resides on a hard drive not defined as a part of the RAID. The RAID was setup as striped.The sata_nv driver is loaded.why the OS would not be seeing the raid as a single drive?
View 2 RepliesI kept my movies on a 2 drive software raid1 mirror, but now I changed my mind about needing a raid and pulled one of the drives for another use. Can I convert the remaining raid drive back to a regular single drive and keep the data in place? Can I change the raid partition back to regular partition and be able to mount it?
View 6 Replies View RelatedI am running single drive Ubuntu server 9.10 with a lot of software. Now I want to add one more disk (same size and type) and to convert this to RAID 0 without need of reinsallation. Is it possible and if yes how? I didn't find nothing for RAID 0. It sounds simple, but probably is not.
View 4 Replies View RelatedHow 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?
View 1 Replies View RelatedCan RAID be implemented on a single hard disk ? If yes, plz give a link for it.
View 2 Replies View RelatedRecently, one the SMART utility said that one of the drives had failed and another drive was about to fail. I downed the box and hooked them up to my windows machine to run sea tools on them (They are all seagate drives). Sea Tools said that the drives were fine, while ubuntu said they were failing/dead. Yesterday I decided to try to fix one of the drives in the raid. I turned the server off, took the failed drive out, and restarted. Of course the raid didn't work because only 2 of the 3 drives were there, however it had been working w/ only 2 of the 3 drives for a couple months now (I'm a lazy college student). I turned it back off and back on with the drive there just to see if I could get the raid up again, but I havn't been able to get it to go. So far I've tried:
Code:
mdadm --assemble /dev/md0 /dev/sd[b,c,d]
mdadm: no recogniseable superblock on /dev/sdb
mdadm: /dev/sdb has no superblock - assembly aborted
[code]....
I'm looking for a way to trick the raid into working with just 2 drives until I can warranty the seagate and buy an external 1.5 TB drive to use as another backup. how to remove the bad drive from the array and replace it with a fresh drive, without data loss.
If you want a full run down as to WHY I want to do this, read here: webhostingtalk.com/showthread.php?t=899909Basically, my ISP could not get my server running stable on a simple raid 1 (or raid 5) so what it came down to was having them install my system on a single disk. I don't exactly like this, main reason being, if the system (or HDD) crashes, I'll end up with another several hours of down time..
View 1 Replies View RelatedI need to copy data from a single HD, which used to be part of a Linux RAID 1. I've googled around, but can't find any clue how to mount partitions from this single HD.
Background: The HD comes from a linux based NAS box Synology DS207+. The NAS uses ext3 as filesystem. Both NAS disks are fine, but the other NAS hardware is dead and not worth repairing or replacing.
I can't seem to get past step 6 of he installation of Ubuntu 10.04. I get the error: The ext4 file system creation failed... on single partition (no raid). I chose ' / ' as the mount point, and have tried with and without a swap drive. I'm installing on a Sony VAIO VGN-NS160D, and the HDD was previously formatted to NTFS. There's no other OS so I don't see any way of getting a command line to try a sudo fdisk..
View 1 Replies View Relatedmy linux server is running with an old IDE hard drive getting these hdparm results:
[code]...
i have a WD Raptor drive i'm going to install and put a fresh install of linux on it. i'm just curious, will using a much faster HD as my main drive increase the speeds of my network transfers from the raid drive? do transfers only go as fast as the system drive?
my Fedora 11 system is not starting anylonger. It stops with the message:
Code:
VFS: Can't find ext4 filesystem on dev dm-0
The system told me since a while, that a lot of the sectors of one disk of the (software) RAID compound are failed already. So tried to disconnect each of the disks and start them separately. Unfortunaltly this is not working (for one its is not working at all, the other wents the same far as with both), when I tried to recover the system with the Fedora DVD, it said no distribution found. I am quite new and do not know so much about linux system, so i do not know what further information you could need. Maybe it can be important, that both disks are encryped (the system wents so far, that I can type in the password).
This is a strange problem. I have Ubuntu server installed on a proper server hardware. My RAID card reports all four HDDs to ubuntu as single drives, which is how i set it up because Ubuntu does not recognize the raid card on the server. Now you might say if thats the case, why dont i remove the raid card and have the BIOS report to ubuntu as four single drives then i can perhaps setup software raid. Well my board has only one sata port.Ubuntu is all setup. on the first drive and i have set the other three up using software RAID.
System works great only problem is it freezes sometimes. Not everytime, just on the odd occassion I use the same Hardware without the raid card and of course just one HDD and it great. No freezes.That leads me to believe its the RAID card.My question is why will it run great for days and sometimes just freeze on me? Probably silly but if theres an issue with the RAID card, it should not work at all, should it?
I had done a new lucid install to a 1 TB RAID 1 array using the alternate CD a few weeks back. I messed up that system trying to some hardware working that lucid doesn't have drivers for yet, so I gave up on it and reinstalled to a single 80 GB disk that I now want to move over to the RAID array.
I moved all of the existing files on the array to a single folder, then copied all of the folders from the 80 GB disk over to the array with permissions and symlinks (minus the contents of /proc and /sys, which I created empty).
These are the commands I used:
Quote:
p -a -d -R -v -t /media/raid_array /b*
cp -a -d -R -v -t /media/raid_array /d*
cp -a -d -R -v -t /media/raid_array /e*
cp -a -d -R -v -t /media/raid_array /h*
[Code]....
I tried to change fstab to use the 689a... for root, but when I try to boot, it's still trying to open /dev/disk/by-uuid/412d...
So then I booted from the single disk again and chrooted into the array, then ran update-initramfs -u. I got 3 "grep: /proc/modules: No such file or directory" errors, and "cat: /proc/cmdline: No such file or directory"- so I created directory /proc/modules, created an empty file /proc/cmdline, and ran the initramfs update again. Then I tried to shut down, which hung (probably because I was doing all of this from a terminal window in Gnome), so I killed the power after a couple of minutes.
It's still trying to use /dev/disk/by-uuid/412d... to boot.
What am I missing? I assume I just have to change the UUID to mount as root, but I don't know how.
I have very expensive data on my laptop and many user using my laptop so i want to lock my single drive that other user not access my files and my single drive. please tell me right answer ASAP
View 3 Replies View RelatedMy laptop has 80GB HDD Space, and sometime ago I installed fedora 13 inside windows with 15 gb space for it. Now, I have removed windows and the disk space is recovered. So the disk space is split up like this. 15GB for Linux + 42GB + 21 GB. I just want to know whether I can extend this 15gb so that the full of 80GB can be used without having to mount it. Or in other words can I remove the partition and make it into one single drive.
View 5 Replies View RelatedI currently have Windows 7 installed on my laptop and I would like to dual boot w/ Fedora on the same hdd.I have two NTSF partitions, I shrunk my D drive 50GB for ext4 & swap.I've tried both liveusb-created & unetbootin to create a bootable USB to install Fedora.Anaconda starts up and I get through most of the install configuration, I set up GRUB & the partitions. Once I proceed to the next screen I get missing ISO image 9660 error My laptop doesn't have a DVD drive. It seems like a lot of people are getting this error, but I have found no concrete solution though.
How do I put the image on the drive? Windows can't read ext4 and I haven't been able to find a program that can.I have a USB to SATA adapter that I could hook up a DVD-ROM drive too, but I don't know if fedora will pick up on it.
I'm running Ubuntu 11.04 and would like to know how to backup a whole flash drive to a single image.
View 9 Replies View Relatedjust got myself an external usb drive and I'm wondering if its more efficient to have a single partiton or multiple partition on it. Will only be storing music and backups here, also what filesystem would you recommend?
View 6 Replies View RelatedCould 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.
I'd like to install Debian GNU/Linux on a single drive (SSD) desktop computer.The filesystem of choice is BTRFS and a couple of thing are not really clear to me:
- is a swap partition still necessary and what's the best fs for it?
- what partition scheme would be suggested?
I thought about 2 different btrfs partitions, one for /home and one for / (root) but from what I read if I'm giving the raw drive to BTRFS that would be more beneficial performance-wise, is that correct? (actually I don't even know if 2 btrfs partitions on the same drive is even possible).
If should I got for "donating" the raw/whole drive to btrfs which subvolumes scheme would be suggested for an easy management of the snapshots and backups? should /home be a subvolume or that's not really necessary.
After going back & forth between win7b & F10 installs, I can't get both to live on the same hard disk for dual booting anymore. win7 complains about fedora's GPT disk being unacceptable for installation. win7 blows away fedora's GPT partitions when it installs. Fedora doesn't recognize win7 partitions when it installs. I can't specify exact partition boundaries with windows even if I know what they are, and I can't seem to find any info how to do it in parted either. I have win7 installed in partition 3 in a known location on disk, but if I reinstall f10 (again), it's going to blow away the win7 boot data on the disk. How do I tell grub where to find the chainloader thingy? Can that still even be used? win7 no longer uses ntldr, and I haven't found an updated procedure for this new boot method.
View 4 Replies View RelatedI've recently bought the "new" Macbook from Apple. It obviously came with OSX preinstalled. And I'm obviously not satisfied with the way it works, I also need a FAT32 partition so I can share my files between all three OS's. Tricky business. And I thought later on I might try and create me a nice LFS system to learn about Linux and show of to my mates. But doesn't a single hard drive only support up to 4 partitions? So off I went and got Ubuntu running besides Mac. It wasnt recognized by neither the default boot-loader nor rEFIt straight away. I had to hold alt to come up with the special BIOS or something every time I needed to use Ubuntu (always).
I got up to a point where I could run Ubuntu with wireless, sound and pretty much everything working. Until the kernel updates were installed. Somehow I (or maybe it) managed to screw up and booting had become impossible, for it would crash halfway through with kernel errors and other undefined weirdnesses. Meanwhile I had tried installing Windows 7 on a different partition. Which I found to be catastrophic also. I was forced to put up with OSX, which in my opinion is fine at what it does but it doesn't do very much for me. After a couple of tries I had to give up on fiddling with Ubuntu for I needed Windows 7 to run software for school. So my current partition layout looks like this......
I'm installing Ubuntu to be used as an NFS storage server for my VMWare ESX servers. I've got a server that has two 2TB drives in it. The hardware raid controller isn't an option because it only sees up to 1TB of each drive. So, I'm trying to figure out to do this using either LVM or Parted. I don't know much about doing this, and LVM was the first thing I tried but it didn't seem to do much. It looks like it just created a smaller partition to install Ubuntu on. It didn't ask me what I wanted to do with the rest of the drive space. I've messed around with Parted and am not sure what to do, to be honest. I found a few blog posts but most started off assuming that I knew how to get to where they were starting from.
It's just two drives, /dev/sda /dev/sdb
I am installing Debian on my netbook. I need to make a single fat32 partition on my usb flash drive. I really love linux and want it on my netbook.
View 4 Replies View Relatedhow to format a single Ubuntu hard drive - no partinioning at the moment.
View 4 Replies View RelatedI currently have a 1.5TB sata drive connected to my system, with data already on it. In the next few days I am planning to use mdadm to create a raid5 array with another 2 1.5TB drives along with the one I already have. Is it possible to create the raid without losing the data on my current hard drive? Obviously it will be backed up before hand just in case, but it would be nice not to have to restore nearly a TB of data after raid'ing the drives.
View 2 Replies View RelatedI installed Debian Squeeze using "dmraid=true" because I have an onboard RAID controller. Everything is fine except when I go into Nautilus I see, the raid array and the 2 disk inside the RAID array. This is a little confusing!
Is there a way to fix that? Is this only a bad config in fstab?
I have 4 1.5 TB Seagate drives configured in RAID 5 via mdadm on Karmic. It seems that after a while, one drive always drops out of the array. It's a brand new drive, and after a reboot, it will come back in and rebuild just fine, so somehow I doubt the drive is actually failing. Here's a dmesg snip. The mounting that happens at the top is the mounting of the array, and as you can see, after a while, there is some kind of write failure.
[70178.385356] EXT3 FS on md0, internal journal
[70178.385373] EXT3-fs: mounted filesystem with writeback data mode.
[95234.954141] ata5.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[95234.954160] ata5.00: cmd ea/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[95234.954162] res 40/00:00:c6:66:a8/00:00:ae:00:00/e0 Emask 0x4 (timeout)
[95234.954168] ata5.00: status: { DRDY }
[Code]...
I am trying to create a RAID data drive for my system but I am having setting it up since I am a total linux noob.
The system has 3 physical HDD-s:
1. 320 GB (has functional Ubuntu 9.10 installation) attached to a PCI SATA card
2. 2TB on motherboard
3. 2TB on PCI SATA card
I want to create a software RAID1 of disks 2 and 3. So far I have used the Palimpsest Disk Utility:
- Created a GUID Partition table on both disks (2, 3)
- Used File -> New -> Software Array, made sure both my drives were included
- Once Palimpsest listed the RAID Drive as a Software RAID Array, I told it to create Ext3 filesystem on it
Well.. at least thats what I thought I did. At this point I have been able to mount the RAID drive and put files on it. However when I look at its information in Palimpsest, I am told that the drive is not partitioned. Both RAId components /dev/sda1 and /dev/sdc1 are reported to be in Sync, but the RAID Drive's own state is 'Running, Resyncing @ 45%' (and lowly growing).
My questions are: Is this a normal setup or did I do something incorrectly? Why is the drive reporting to have no partition? And howcome I can use it if it does not have a partition? I have found the command line based configurations to be a tad too confusing to follow, so I have tried to stick to graphical tools - is this a hopeless cause in Ubuntu or is it possible to achieve what I want to do without command line? I will list some info on my disks below - perhaps this offers more insight to those of you more familiar with Linux.
Code:
mindgamer@mind-server:~$ sudo lshw -C disk
[sudo] password for mindgamer:
*-disk:0
description: ATA Disk
product: WDC WD3200BEVT-0
vendor: Western Digital
[Code]...
I intend to install ubuntu server 10.04 on an IBM blade server x3550 m3. The server has two SAS and two SATA II hard drives, each configured as RAID 1 through a ServeRAID m1015 card. However, ubuntu didn't recognize any hard drives at the installation.
Is there a way that I can load raid driver (if exists) during installing Ubuntu?