Software :: Backup On RAID Configured System?
Jul 26, 2010
I have used gparted for backup of my system, but now I have RAID configured and gparted didn't recognize my drives: Disk /dev/md0 doesn't contain a valid partition table
I have 2x500Gb HDDs configured in RAID and primary and logical partitions set by LVM (on Debian lenny 5.03)
Code:
fdisk -l
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x000cb4b9
[Code]...
What program can I use to make a backup of my installation into /dev/dm-1 (this drive is mounted as /home)?
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Aug 30, 2010
Is there a way to find the raid type without restarting the machine?
I m using linux operating system.
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Nov 3, 2010
I just installed Debian 5.0.4 successfully. I want to use the PC as a File Server with two Drives configured as a RAID 1 device. Everything with the RAID device works fine, the only question I have belogs to the GRUB 0.97 Booloader. I would like to be able to boot my Server even if one of the disks fail or the filesystem containing the OS becomes corrupt, so I configured only the data partitions to be a RAID 1 device, so on the second disk should be a copy of the last stable installation, similar to this guide:[URL]...
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Mar 24, 2011
It's been a while since I configured a raid and have been making some changes to my main workstation/server.
fdisk does not like md devices on my machine... always says it has an invalid partition table. While this is said to be normal all over the net, I don't feel warm and fuzzy about that fact. What is best practice these days, to create a non-partitionable md device or a partitionable mdp device?
If I create a partitionable md device, I would imagine it would look good in fdisk. However, I am concerned about growing the array afterward. I would then have to grow the array, redefine the partition, and then grow the file system. The PITA factor goes up. Has anyone worked with both? Pro/Cons? My array was created with:
mdadm --create --verbose /dev/md0 --level=5 --force --raid-devices=3 /dev/sda1 /dev/sdb1 /dev/sdc1
FYI: I have backups. I understand RAID 1 may be a better choice of raid level.
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Jan 6, 2010
Here is my system: I have dell poweredge 1950 PERC 6 with 300 GB raid system. It has two disks of each 300GB RAID mirrored system. I have few applications and data that reached around 280GB. As you know, poweredge 1950 we can have only two disk.
They are not mission critical. Hence, I wanted to remove the raid system and use as a non-raid system. By doing it, The applications and data can grow upto 600GB. I do not want to loose the data and setup. I am not so clear about RAID system and its conversion.
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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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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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Apr 7, 2010
I've configured a complete 9.10 system in a VM using VMware. It's a very slim install done from the mini.iso and simply logs in as a user, starts X using ICEwm, and launches the latest Citrix ICA client to attach to a server. It works great, but now I'd like to take this configured system and make a bootable CD from it. The goal is to make a CD for a lab of older Dell GX270s to boot into a simple student desktop for Microsoft Officeapplications and internet browsing.
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Apr 14, 2010
can this utility be configured to add more system-config stuff?is there a man page for it?
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Mar 26, 2010
I would like an old desktop box to use my laptop as a router to access the internet. Here is my setup:
I have one ethernet port in the side of my laptop which I want to use to get internet access to my desktop computer. The laptop is connected to the LAN via a wireless link. Both systems run Linux. The desktop autoconfigures itself using DHCP. The laptop is a Kubuntu system. I do not have any crossover cables, though wireshark on the laptop sees the DHCP requests from the desktop just fine, so I doubt that I need one.
What do I have to do to make this work?
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Mar 16, 2011
I have configured my system to connect to a wireless network on bootup, but now every time I boot I have to wait and watch it connect (it outputs some dhcp connect stuff) which delays the boot process. is there any way to just initialize the script and then go on with the boot process instead of letting it output some pointless crap and waiting for it to end?
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Mar 24, 2011
I have a box that doesn't have a Raid controller or a software raid running currently. I would like to make it a RAID 1. Since it seems there isn't any IDE RAID controllers hardly around, I have another HD that is the exact model as the drive currently in the box running CentOS. Can I some how add the second drive and get the box to mirror from here own out? The box gets really hot and I want to be ready for a HD failure.
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Aug 15, 2010
I'm building a new desktop computer, on which I plan to install Debian Squeeze. I'll have a 1 TB SATA hard drive in the system. I'm also considering using two 500 GB external USB drives, but I'm debating about how I want to use them. Running them all separately for 2 TB of space could be a nightmare, with three potential points of failure, so I was thinking of using the two external drives as a backup system instead.
I'm considering linking the two external drives in a RAID 0 array, then linking that array and the internal drive in a RAID 1 array. I would use mdadm software RAID for all of this so I could use individual partitions in the arrays, avoid hardware dependency, and have greater software control. So now is this feasible to do (having a partial RAID 0+1 setup)? Moreover, what kind of performance could I expect from using potentially slow external drives (one of which I know has a very long spin-up time after idle periods) in a mirroring setup with the internal drive?Would I be far better off using a filesystem backup daemon instead?
EDIT:After some more research and brainstorming, I've decided I might just end up using rsync+cron, lsyncd, or DRBD (assuming it can easily make backups locally). I'd probably have to link up the external drives in RAID 0 (or use some filesystem link trickery). But I suppose such a setup would offer greater control, flexibility in disk capacities (the full system isn't so strictly limited to the capacity of the smallest member of the array), and granularity than RAID 0+1 would.I'm still open to thoughts on the mdadm RAID 0+1 solution, but does anyone have any advice on choosing backup software? For some background on my needs, I'll be using this computer as both an everyday desktop and a personal LAMP server (MySQL database files would be included in the backups).
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Oct 27, 2010
We have some servers that run in very harsh environments (research vessel) that need to have high-availability.We have software RAID 1 for some measure of resiliency, along with proper data backups (tapes etc), however we would like to be able to break out a new server and re-image it (including RAID setup) from a known good copy if the hardware completely fails on the production box. Simplicity of the process is a big plus.I am interested in any advice on the best way to approach this. My current approach (relatively new to Linux administration, totally new to MDADM) is to use DD to take a complete gzipped copy of one of the RAID'ed devices (from a live CD): ode:
dd if=/dev/sda bs=4096 | gzip -c > /mnt/external/image/test.img then reverse the process on the new PC, finally using Code:mdadm --assemble to re-create and re-build the array.
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May 16, 2011
anybody used or configured KOHA (an open source Integrated Library System) on windows Xp or vista
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May 2, 2011
I am trying to restore my system to Ubuntu 10.10, using a system backup made with REMASTERSYS. When I reboot, I get the message: GRUB error:15 I found many threads discussing this issue, most notably here: [URL]
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Jan 19, 2011
I have (had) Debian Testing running on a 250GB IDE hard drive, partitioned normally.
I also have 4x 1TB drives in a raid 5 using mdadm, and 2x 500GB drives in a raid 1 also with mdadm.
I put the two arrays in lvm using:
I then used "lvcreate" to make storage/backup 300GB, and the rest went to storage/media (approx. 2TB usable). I put an xfs filesystem on both and mounted them.
All was working fine until the system drive shorted out and died on me this morning. As far as I can tell, all my other drives and everything else is fine. I do a daily rsnapshot of the filesystem, which of course is residing on storage/backup (stupid, I know). So I have full backups of everything, but I'll have to put a new hard drive in and reinstall Debian before I can restore everything.
I've reinstalled before and simply reassembled mdadm arrays and remounted them before with no problems, but this is the first time I've used lvm, so I'm not sure what I have to do to restore everything. Is it as simple as reinstalling the system then doing a:
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Oct 7, 2010
At work we have a linux based ip phone system. Now this system was buggy for a bit but we now have it working perfectly. As it is we clone this hard drive and on backup I clone it back. This works but if for whatever I'm not in the office the backup can't go through because apparently no one can read the VERY simple instructions. What i would like to do is burn a cd with a copy of the hard drive (this configuration will change once every 6-12 months at maximum) as well as a VERY minimal linux install.
The goal is they stick the cd in and reboot. The system loads the super minimal linux then it runs a batch file that clones the portion of the CD that has the hard drive onto the system then it asks the nice moron....err....person...to remove the cd and reboot All I need is a a bootable system to a bash script that will run live from cd. I can make the nice bash script that puts to the screen a nice ascii graphic telling the lucky sap it's running and to come back in a little bit to make sure it's done.
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Jan 25, 2011
Recently I've backupped my entire /home folder on my laptop with grsynch trough ssh.Since I already had a simply text file containing all installed programs, I figured 'then, when i go from the backup trough my desktop, all my program settings will be restored if i run the txt file to install all those programs first.So i installed al programs, then i went from backup to /home on desktop, logged out and back in. Started up a random program (tried thunderbird and filezilla) and no settings were to be found.In retrospect, docky did start, but didnt have all the launchers i had on my laptop. so that could have been a clue.
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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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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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Dec 25, 2009
I am planning to implement a backup strategy to backup my basic system ,applications installed and the different configurations also of the personal data (From documents , music etc , to my photos , 3d design files etc) I have a Hard disk (well SSD really) of 120GB for the system (8GB Swap,30GB / and 60GB /home), one 750GB Hdd for save my music,photos,images and other things not related to 3d design , and i am going to buy tomorrow 2 hdds more , one of 1 TB for use only for 3D design , for save final images , models , textures , 3d related documentation and like , and one 1,5 TB HDD to use as backup of the personal data and the system. (One 500 Gb partition for backup system, and hold clonezilla images, and one for backup the data for example)
By the moment what i have done , is use clonezilla to save a image of / and another image of /home in my other hard disk (I save a image of system installation in ext3 prior migrate to XFS , and later , one image with the system migrated to XFS) and i have used Rsync to copy both / and /home to two partitions in the other hard disk , so have a copy also of clonezilla images. I think use clonezilla ,is useful to do each some time,so be able to have a fast way of recover the system , but i would like to implement a daily or weekly backup of my data and system , for example making a full backup and then incremental backups.
Perhaps for backup data this is a good aproach , but for backup configuration files , and the system in general ? , i mean , if i backup the things while using the system , could some files being not backuped , because being used ?
If i decide to install,for example, my new Wacom Intuos4 M tablet, for that i need to install the kernel source , and compile some modules and things by hand (because repository packages of wacom are a bit older than need for new intuos4) ,that will change my system and add new libraries and files to it.
If i make a full backup , and then incremental backups , each some time , if i have a problem or make a mistake when installing it or doing something , i have only to restore the backups via live cd, no ?
But if some files are being used , that, will not be backuped, so when restore it , that files , will be modern versions compared to the backup (perhaps that files would not be later modified , but who knows) and i could have problems no ? Perhaps a solution is have a clonezilla image of the system prior the first full backup ,and restore it fist to have a new installation ,with all files , used included, and then restore the full backup of the 1h later ,and the incremental backups until the moment all gone bad , to have the system working again no ?
So i don't have to be worried by files used by the system as long as also of doing online backups , also have a exact image of my system , that will make me able to restore it in some minutes and don't have to install all , by hand and remember what i had installed. Also that lets me to backup only , at least when doing full and incremental backups , the directories of the system that are dynamic, and change , and those that are static , backup them only one time.
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Jan 3, 2010
How can I work your backup to Linux system without Windows
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May 9, 2010
easy way to backup everything the system with its settings. I have seen many posts regarding this on google and in this forum but it was a bit hard for me.[URL]...
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May 29, 2010
I have been using Ubuntu for a while now though not heavily. I want to try out the new 10.04 as I was not all that happy with 9.10. I would like to backup my entire Ubuntu System so if the upgrade goes south like it probably will and has every time in the past that I can restore it easily. Now in Windows I would use either Paragon Backup or Comodo Backup. So, I was wondering if there is a complete backup system like this for Linux. I have looked at several, but most only back up the home directory or specific directories.
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Jul 15, 2010
I have an external hard drive and have been using it to backup my multiple computers for a while now, but because it needs to be plugged into the mains, it is a pain to move it from one computer to the next. So I've decided to try to set up a SSH backup system that will allow me to backup without having to move the drive.
Host udev script:
Code:
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Aug 11, 2010
I would like to reinstall my whole 10.04 system, because I feel, that it is pretty massed up, as a beginner I also made some mistakes and there are some unnecessary errors.
I would like to mostly keep my installed apps and settings. Is there any way to recover/export them? home folder?
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Sep 9, 2010
I removed windows completely from my Dell Inspiron N5010 and installed Ubuntu 10.04.1 64bit. In windows I have the option to create the system image of system's current state so that if something goes wrong I could easily restore my system using that image( I am not talking about windows Restore facility). I wanted to know that if there is something available in Ubuntu also. I cant use Dell recovery media creator as I have deleted recovery partition. I have already used Remastersys and it also did its job well but after restoring my Graphics card driver did not work well.
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Apr 19, 2011
Custdistro means it will backup your all/thing without/home and customback means it will backup all thing in /. It can create an ISO if your backup is less then 4 GB. Well, i've made a lot of changes to ubuntu 10.04 and now i love it! It does everything i'll want from any computer. This took me a lot of time, follow several tutorials and destroy the entire system a couple of times. The last one is a BIG problem because restoring my system to the state before i ****** all up takes some time again.Do any of you guys know how to backup all my system settings, programs and files? So that if i corrupt my system again i can restore it to be exactly as my current state?
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May 27, 2011
I am relatively new to Linux, What files/Folders should be backed up and what ones are not necessary?This is my 2nd install of 11.04 because I screwed the 1st one, so Im not sure what to backup to prevent having to reinstall if I screw up again.
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