Ubuntu Servers :: Replace Hard Drives But Keep System?
Jan 26, 2011
Our company just bought faster hard drives for our webserver. A lot of the software and services set up on this machine have had config files set up, etc.. It would take a while to rebuild it from scratch, which i may have to do. I know most config files are in /etc and i can use apt to spit out a list of installed packages.
Any tips that i may want to know to avoid any gotchas here? We need to minimize downtime, of course, and get everything up like it is now.
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Oct 12, 2010
I currently have an Ubuntu 10.04 Server with 10 2TB hard drives (Hot Swappable). I discovered that having a software raid over 16TB is not supported, so I split the drives into 2 sections and have 2 Software Raid arrays storing my movies, audio, pictures, and other software. The total current usage is around 7TB.
Since backing the files up to DVDs or even BlueRay is laughable, I am going to backup the system to 2TB hard drives probably 4 of them, the problem becomes that I can only hook one backup drive at a time into the system using a hot swap tray. Now I know that I can do this manually by copying the files one at a time to the drive until it is full, switching the drive out and repeating this, but I am hoping for an automated solution, Start backup, plug first drive in, system fills up drive, swap and repeat. Also it would be nice if the system remembered what had already been backed up so when I add files to the system, I only need to attach the last drive and not start the process over.
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Sep 4, 2010
I have this server board by supermicro: H8QM3-2 I would like to know if there is a sas driver for the hard drives? I want to use ubuntu 64bit but fail to find a driver for my sas hard drive.
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Oct 9, 2010
I have a second hard drive that I plan on placing in a computer I wish to use this computer as a server so my question is how could I use these 2 hard drives as one lets say one is 80Gb and the other is 40GB how could they be shown as 120GB instead of being seperate The installation of server planned on being used is 10.04.
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Apr 8, 2010
I have a server with 3 hard drives
1 400GB
2 1TB
The 400GB has the OS and SWAP while the 1TB are going to be used as storage....
Now for the problem, when I have both the 1TB drives in I can not format or mount either 1TB drives. Says Device is in use or "The device file '/dev/sdc1' does not exist"
Now if I take one of the 1TB drives out I can format, partition, and mount it no problem...it only seems to be a problem when both drives are connected...
Ubuntu Server Linux 9.10
Code:
Code:
Code:
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Apr 17, 2010
Here's the background.
1x Windows Vista laptop (laptop1)
1x Windows 7 laptop (laptop2)
1x Mac laptop (laptop 3)
I am running Ubuntu server with 3 hard drives. I have Webmin installed. So far, I have the three laptops being able to connect to samba and accessing /home/insert_user_here. All laptop users have access to my /media/data2 (photographs, videos). That's all good. At first, I couldn't get other users but laptop 3 to access /media/sdb1, but I fixed that by changing permission to 755 so I guess everyone can access this. Atm, I want to only allow laptop #3 to connect to /media/sdd1 (be able to read/write/etc.) while laptop 1 and 2 can't even see the files. Also, laptop 1 and 2 can't seem to read and write through file share.
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Nov 5, 2010
I recently moved my ubuntu 9.10 server over to a new case with more memory, and when I did the webserver worked like a charm, but now apt-get is broken. Checked my 70-persistent-net.rules and saw the new NIC was there, so I edited my interfaces to use eth1 for the new NIC, but apt is still not working, failing to fetch everything. here is my 70-persistent-net.rules
Quote:
# PCI device 0x10ec:0x8139 (8139too)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:40:2b:69:76:$69:76:1d", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# PCI device 0x10b7:0x9200 (3c59x)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:06:5b:4f:86:$4f:86:5a", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"
[Code]....
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Aug 23, 2010
I have an email server that I think is about to have a hard drive fail. It is running an old install of Redhat 9.0 I think. It has 2 120gb hard drives mirrored as a raid1. I want to copy those to a new pair of 500gb hard drives again as the same disk raid1 mirror. What tool would work for this? DD or partimage? Would it all be exactly the same and boot up still?
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Oct 5, 2009
I've installed Fedora 10 short time after it came out. Now I am having some problems unmounting thes drives on restart or shutdown. It hangs at the stage of 'unmounting file system'. I've looked into this matter and discovered that those drives are automatically mounted and shown on the Gnome file browser. As the /etc/fstab indicates, it is not mounted by it. I must have done something to have all the hard drives shown in the file browser and now Fedora seems to be unable to unmount them.
Quote:
#
# /etc/fstab
# Created by anaconda on Mon Sep 7 20:25:11 2009
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
[Code]....
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May 14, 2011
I have a 3 year old PC with 4 internal SATA ports. My old SATA hard drives, all smaller than 2TB, work fine. If I buy a 3TB SATA hard drive, will it work in Linux? Will Linux with GRUB be able boot from such a hard drive without a BIOS upgrade? With a BIOS upgrade? It's fine for me to upgrade my Linux to the newest kernel.
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Aug 1, 2011
My questions begin with Virtual Box. I have Windows XP installed via Virtual box. Ordinarily, I hate everything about windows, but unfortunately some things related to my job I am still in need of having some access to some form of Windows. I am wanting it to recognize all of my multiple hard drives that are installed on this system, 4 of them to be exact, so that I can utilize files from all of them.
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Aug 2, 2010
I just finished a build of a new GNU/Linux boxen with openSUSE 11.2. I have a MSI Big Bang Xpower X58 motherboard which has two SATA controller chips, one is the standard Intel ICH10R chip for SATA 3.0 Gb/s and one is the Marvell 9128 chip for SATA 6.0 Gb/s. The BIOS recognizes the Western Digital Caviar Black 6.0 Gb/s drive on either SATA controller chips, /however/ I am unable to install (and boot) when the drive is connected to the Marvell controlled ports. As you can guess, I'd like to boot from the faster interface!
1. The BIOS allows me to select the Western Digital drive as a secondary boot device, so I know, at least at the BIOS level, it's there. This is true whether I have the drive connected to the Intel or Marvell ports. (The DVD drive is the primary boot device.)
2. When trying to install openSUSE 11.2 from DVD, the installer says that it can't find any hard drives on my system when I have the drive connected to the Marvell port. The installer finds the drive fine when it is connected to the Intel port.
3. I installed everything with the drive connected to the Intel port. I switched the drive to the Marvell port afterward and the system refuses to boot completely, stalling at some point where it starts to look for other filesystem partitions. This led me to conclude that perhaps the problem is with openSUSE and not hardware weirdness with the system having two separate SATA controllers?
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Mar 26, 2011
I am building a home server that will host a multitude of files; from mp3s to ebooks to FEA software and files. I don't know if RAID is the right thing for me. This server will have all the files that I have accumulated over the years and if the drive fails than I will be S.O.L. I have seen discussions where someone has RAID 1 setup but they don't have their drives internally (to the case), they bought 2 separate external hard drives with eSata to minimize an electrical failure to the drives. (I guess this is a good idea)I have also read about having one drive then using a second to rsync data every week. I planned on purchasing 2 enterprise hard drives of 500 MB to 1 GB but I don't have any experience with how I should handle my data
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May 19, 2011
Having problems with external hard drives. I may be wrong, but I suspect they originated with an upgrade to 10.04 last Christmas. Around that time I also started using Amazon's S3 storage system, and, as a consequence, I stopped using my WD 80G external drive, previously used to backup my important files.
A week or so ago I decided to start using the WD drive again. I can't remember exactly what I did, but it wasn't happy - never caused any problems before. When I plug it in, the on-off light as the front keeps flashing on and off, and when I try to remove the drive I get the message: Error unmounting volumne An error occured while performing an operation on "My Book" (Partition 1 of WD 800BB External): The device is busy
Details: Cannot unmount because file system on device is busy Assuming the device had died - it's about 5 years old - I bought a 160G Samsung S-Series drive - my but they do look neat! Unfortunately, this doesn't seem to have solved my problem. I plugged the new drive in, and it happily appeared on my desktop. It seemed a good idea at the time, but I then started to format the drive - using the default option of FAT. All went well at first, but then the format process stopped.
My new Samsung drive now seems to be operating pretty much as the WD device, I can't copy to the drive, and attempts to unmount it generate a response similar to what's happening with the WD drive. Currently, although plugged in, I can't see the drive on my desktop, although it appears under Places. However, when I try to mount the drive, I get the message: Unable to mount SAMSUNG A job is pending on /dev/sdb1
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Jul 5, 2011
I have Fedora 14 installed on my main internal drive. I have one Fedora 14 and one Fedora 15 installed on two separate USB drives.When I boot into any of these drives, I can't access any of the other hard drives from the other drivesll I can, but just the boot partitions.Is there any way of mounting the other partitions so I can access the information?---------- Post added at 12:42 PM ---------- Previous post was at 09:34 AM ----------I guess even an explanation on why I can't view them would be good too.
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Jan 18, 2010
I'm breaking into the OS drive side with RAID-1 now. I have my server set up with a pair of 80 GB drives, mirrored (RAID-1) and have been testing the fail-over and rebuild process. Works great physically failing out either drive. Great! My next quest is setting up a backup procedure for the OS drives, and I want to know how others are doing this.
Here's what I was thinking, and I'd love some feedback: Fail one of the disks out of the RAID-1, then image it to a file, saved on an external disk, using the dd command (if memory serves, it would be something like "sudo dd if=/dev/sda of=backupfilename.img") Then, re-add the failed disk back into the array. In the event I needed to roll back to one of those snapshots, I would just use the "dd" command to dump the image back on to an appropriate hard disk, boot to it, and rebuild the RAID-1 from that.
Does that sound like a good practice, or is there a better way? A couple notes: I do not have the luxury of a stack of extra disks, so I cannot just do the standard mirror breaks and keep the disks on-hand, and using something like a tape drive is also not an option.
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Aug 23, 2010
I have a SATA drive that worked fine. Then I installed two more hard drives into my system. When these hard drives are installed, if I try to access the SATA drive in Linux, it will start lightly clicking and then the drive will become unavailable. If I power on the machine without the other two hard drives then it works fine. What could be causing this to happen? I don't think it's heat because the two hard drives are far away from the SATA drive.
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Jun 30, 2011
For our workgroup I set up a server which is basically 10.04.2 with kernel 2.6.32-32-server on a SSD and all the data on a RAID 5 consisting of 4 2TB hard disks, thus a maximum of 6TB space for data on the RAID. Having multiple users with different amounts of data from different scientific data source I set up an lvm on top of the RAID
--- Physical volume ---
PV Name /dev/sdb2
VG Name home-data
PV Size 5,45 TiB / not usable 3,00 MiB
[code]...
Here is the problem: The volume Genomes (or /genomes) is half full
sudo df -ah
/dev/mapper/home--data-Genomes
1,9T 850G 920G 49% /genomes
but the system states it as full whenever I try to add more data (tried cp and rsync). There is no quota set to the volume (I have quotas in place for users home folders. These are only for max amount of disk space, not max file number, and I am still able to move/add files elsewhere so there seems to be no interference).
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May 9, 2011
I did post a thread yesterday saying a problem I had with installation but now I know what REALLY happened. My hard drive is destroyed lol I think whenever I try to install 11.4 it says "disk failure is imminent". So maybe I was wondering if it is possible to install Ubuntu on a 4gb USB flash drive and use that as my hard drive? If not a USB then maybe an external CD drive (I am on a netbook and I dont mind having a USB inside all the time) So yeah if its possible then thats great I would like to know how.
But if its not possible, or maybe it is but a bit harder I just want to know what I can do because my laptop is currently useless and I dont wanna go back to Windows coz it died on me several times already. Or maybe I can try a different version of Ubuntu?? Also someone might suggest just keeping it in "try Ubuntu" but th internet drivers arent there and I need to restart pc to get it but I cant restart without being fully installed
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Aug 10, 2010
I have a Centos 5.5 system with 2* 250 gig sata physical drives, sda and sdb. Each drive has a linux raid boot partition and a Linux raid LVM partition. Both pairs of partitions are set up with raid 1 mirroring. I want to add more data capacity - and I propose to add a second pair of physical drives - this time 1.5 terabyte drives presumably sdc and sdd. I assume I can just plug in the new hardware - reboot the system and set up the new partitions, raid arrays and LVMs on the live system. My first question:
1) Is there any danger - that adding these drives to arbitrary sata ports on the motherboard will cause the re-enumeration of the "sdx" series in such a way that the system will get confused about where to find the existing raid components and/or the boot or root file-systems? If anyone can point me to a tutorial on how the enumeration of the "sdx" sequence works and how the system finds the raid arrays and root file-system at boot time
2) I intend to use the majority of the new raid array as an LVM "Data Volume" to isolate "data" from "system" files for backup and maintenance purposes. Is there any merit in creating "alternate" boot partitions and "alternate" root file-systems on the new drives so that the system can be backed up there periodically? The intent here is to boot from the newer partition in the event of a corruption or other failure of the current boot or root file-system. If this is a good idea - how would the system know where to find the root file-system if the original one gets corrupted. i.e. At boot time - how does the system know what root file-system to use and where to find it?
3) If I create new LVM /raid partitions on the new drives - should the new LVM be part of the same "volgroup" - or would it be better to make it a separate "volgroup"? What are the issues to consider in making that decision?
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Apr 25, 2010
I am installing a new hard drive to replace my old one that contained the /var and /home directories. I don't want to copy the whole directories, especially from home because there is a lot I don't need in it.What I need to do is set the mount points for the two partitions I have made on the new drive to /var and /home, but it will not let me do this with the other drive still running. I can't unmount /var and /home while the computer is running, and I would guess that having two drives with /var and /home on them would not work.
So, how can I set the mount points on the new drive and copy the files I need from the old to the new one? It would seem that would require two /home partitions to be mounted at the same time, but I don't think that is possible. I am sure there is some way, probably many ways knowing Linux so please,
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May 23, 2010
i have 2 hard drives showing up on my desk top and when i try to unmount them i get an error
Error unmounting: umount exited with exit code 1: helper failed with: umount: only root can unmount /dev/sdc1 from /media/new movie storage
and
Error unmounting: umount exited with exit code 1: helper failed with: umount: only root can unmount /dev/sdb1 from /media/STUFF
when i try to unmount the other one. now one problem i see is that the labels are wrong the error for /media/stuff came up when i tried to unmount /media/new movie storage, and and the other way around for /media/stuff. also new movie storage is labeled as safe every ware else including inside windows
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Sep 27, 2010
Earlier I had two physical hard drives in my computer, one with Windows and one with Ubuntu. Now I have a new computer and have installed these hard drives in it. I run Windows 7, and I can find the Windows disk, but not the Ubuntu disk. This doesn't surprise me, as Ubuntu is another filesystem, however, earlier I could format it with a partition manager, but now I didn't even find it with that!
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Jan 23, 2011
I have installed two hard drives. One is a Sata drive and the other an IDE drive.They are both functional drives. On boot up only the Sata drive shows up. How do I get both drives to boot up together please.The Sata drive has Ubuntu on it and the IDE drive has Fedora on it' I would like to access all of them.
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Mar 11, 2011
I'm looking for a way to set up a backup with two 2TB hard drives. What I want to do is basically mirror two drives. What ever I copy to the one drive I want it to be "cloned" with the other drive.
Is there any software that could help me with this? Does anyone know of a better to do something like this?
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Mar 30, 2011
I have a nice computer i have been dual booting between either ubuntu or win7. i am wanting to remove win7 and install winxp sp3, so i can use media center with my xbox. i preferred that win7 work, but since my copy is not genuine, its authenticity is believed to be the culprit in connection errors with the xbox. i have not been able to find a linux alternative, which i doubt even exists due to the proprietary nature of the xbox.
So, my question is how do i reformat the win7 hard drive? are there issues i need to worry about that may reformat both hard drives on accident? and when the hard drive is formatted, will i be prompted to choose which hard drive to install win xp on?
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Apr 29, 2011
My computer has 2 40GB hard drives (yes, it's really old). One of these hard drives has Ubuntu installed on it, and I would like to use the second hard drive as a data storage device that is usable by anyone who just wants a random place to drop random stuff. How do I do this?
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Jun 2, 2011
I am trying to install windows 7 over Ubuntu, however when i run the install disk it tells me that my hard drive is not formatted in the correct format. I have then loaded up Ubuntu, tried to re-format using Gparted and it won't let me re-format my hard drive when I right click on it. The only option I get when right-clicking is to unmount the drive.
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Jul 22, 2011
I have ubuntu 11.04 installed on a 80gb hard drive and everything was running fine. I then installed a second drive (1gb) for storage. It worked fine after a reboot but now it won't boot. I'm pretty sure it's just confused as to which drive is the boot drive. I'm not sure as to how to fix it in GRUB2.
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Mar 17, 2010
I want to make a RAID5 array with 4 2TB hard drives. One of the drives is full of data so I will need to start with a 3 disks and then once I copy the data from the 4th onto the array, I will then add the 4th drive. This will be my first experience with RAID. I've spent a few hours searching for info but most of what I have found is a bit over my head.
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