Red Hat / Fedora :: Setup RAID 1 Without Any Data Loss

Dec 7, 2010

I have a Dell workstation, 2 HDD, HDD 1 setuped Red Hat 5.3 with LVM, and that HDD 2 is empty, not install RAID 1. And, I want to setup RAID 1 (hardware RAID)...but, have a problem. I don't want to lost data on HDD 1 when I setup raid, I try ghost or backup it, but when I restore, it error because LVM is setup on that.

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CentOS 5 :: Mistakenly Setup RAID 0 Array On / Instead Of RAID1 During Setup - Convert Without Loss?

Dec 15, 2010

So I didn't notice when I setup my CentOS 5.5 server that I left / as RAID 0 on md1. All the rest are RAID 1. Is there a way I can modify the array to RAID 1 without a risk of data loss? I'm glad I caught this before I setup any other services. I've only setup smb so far...

[root@ftpserver ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/md1 16G 3.0G 13G 20% /

[code]....

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Fedora :: How To Resize Existing Partition Without Data Loss

Dec 4, 2009

In the process of preupgrading to FC12. Towards the end of the process I get a warning that my /boot partition isn't big enough (12 recommends minimum of 300Mb).

My disks:
[root@fatbeast boot]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_fatbeast-lv_root
35G 6.6G 28G 20% /
/dev/sda1 194M 176M 8.4M 96% /boot
/dev/mapper/vg_fatbeast-LogVol02
29G 25G 3.2G 89% /home
tmpfs 1.9G 676K 1.9G 1% /dev/shm
/dev/sdb 7.5G 319M w7.2G 5% /media/CDF2-6BE2
[root@fatbeast boot]#

Is there a tool I can use to resize my existing partitions WITHOUT data loss? I've been using gparted up to now for sorting partition stuff, does that maintain data when resizing (assuming I run from a boot CD or USB rather than a running system)?

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Fedora :: Decrypt An Encrypted Drive Without Loss Of Data?

Mar 15, 2010

Can I decrypt an encrypted drive without loss of data?

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Fedora :: 13 Windows 7 Dualboot And Hard Disk - Complete Loss Of All My Data

Oct 11, 2010

Last time I installed Ubuntu in a dualboot configuration with Win7 on one of my machines, my entire boot sector and Windows install got corrupted, resulting in a complete loss of all my data and requiring a fresh install of Windows.

I looked into this a bit after the fact, and it seemed to me it was due to conflicting hard disk geometry between Linux and Windows.

My question is, how likely is this to happen with Fedora? Is this because of Ubuntu? A bad install? Is there someway I can avoid this from happening when I install Fedora if it will happen?

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Ubuntu :: Downgrade Mysql From 5.1 - 5.0 Without Loss Data?

Jan 7, 2010

i have installed ubuntu server 64bit with lamp so all in one (apache, mysql and php) and i need to downgrade mysql because of serious problems with mysql 5.1 and this is the only solution. But i need to be working with apatche and php also and have my.ini like i have now (can backup it) so is there any save way to do that?

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Ubuntu :: Data Loss And Backups When Upgrading?

Jun 14, 2010

I installed Ubuntu 10.04 on the laptop and it looks pretty good. I currently run 9.10 on the main desktop and would like to upgrade to 10.04, by pressing "upgrade" in the update manager, but I have some questions before I do, namely about data loss.

If I upgrade, will stuff like Thunderbird keep my emails, FF keep its profile (cookies, bookmarks, addons etc..), the documents keep all the documents, I have an apache server installed with a few websites - will they still be there after an upgrade? I also have a virtual machine with windoze on, what about all the stuff in there and VMware itself?

Or, will I need to back everything up onto an external hard drive (not sure how to backup Thunderbird and FF), and then reinstall everything, and transfer all the documents, websites etc.. back over again??

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Server :: Recovering Of RAID5 Data Loss?

Aug 11, 2010

how to recover A mounted RAID5 data???

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Slackware :: Data Loss After Sudden Reboot On Xfs

Oct 25, 2010

I have a laptop running slackware-current. The disk is /dev/sda and the root 'sda1' is xfs formatted (there is also linux swap at sda2).

recently I was trying to setup openvpn and had to copy a folder with configuration files from /usr/doc/openvpn_<version>/easy-rsa to /etc/openvpn.

I am sure the copying completed cause I got a prompt, but a few seconds later the battery died on me. When I got mains and powered it up, I could see the directory I copied under /etc/openvpn, and the files where all there too. but they all contained nothing. i.e. they had a size of 0.

I read [URL] Fthat an external journal filesystem for root is not supported. I am not sure If it applies to my situation though. As in does it use an internal journal instead?

and the bottom line is: shouldn't the copying have completed successfully? shouldn't I be worried, that this copy failed?

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Ubuntu :: External HDD FAT32 To NTFS With No Data Loss

Nov 18, 2010

I have a 1TB External HD that at the time of purchasing was used with my PS3 which only allowed FAT32 HDs. But now I am using it for other uses. I have came across the problem of the file size limit of 4gb that FAT32 has.The problem is I have about 200 GB filled of data on this HDD and wish to convert it to NTFS with no data being lossed. Is this possible and if so how?

Edit: BTW no Microsoft just Ubuntu

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Ubuntu :: Data Loss From Expanding NTFS Partition?

Aug 3, 2011

This forum might not be the best place for this question, but some people here are pretty knowledgeable and may have more insight than I do about this. Anyways, I'm thinking about expanding an NTFS (Windows 7) partition on my desktop computer into unallocated space. I know that there is a risk when shrinking a NTFS partition due to fragmentation but are there any risks of data loss from expanding a NTFS partition? My common sense tells me there isn't a risk but I want to be 100% sure I won't lose any files.

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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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Fedora :: RAID 1 - How To Create New Array Without Losing Data

Jan 1, 2010

I have a software RAID array using mdraid that consists of two 1.5TB drives that I use for storage, the array is mounted at /Storage. I am running out of space in the array so I ordered two more 1.5TB drives to create a 4 drive RAID 1+0 array which will be 3TB big. My question is how do I create the new array and not lose any data?

The drives and partitions are sdc1, sdd1, and soon to be sde1, sdf1. I currently have 4 RAID arrays (md0,md1,md2,md3). I think I can create the RAID 1+0 array with the two new drives, copy the data from my current array to the new one, remove the old array, then add the two original drives to the new array. But I wanted to ask on here first to make sure my data doesn't go poof.

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Ubuntu :: Data Loss When Transferring Large Number Of Files?

Jul 20, 2010

This problem is not exclusive to Ubuntu, I've experienced it in Windows and OSX as well, but it seems that almost every time I transfer a large number of files (i.e. my music collection) between my desktop computer and laptop via my external hard drive, I end up losing files for no reason. I usually don't notice the files are missing until later on, because I am never informed of any data loss. Now, every time I make a large transfer of files, I just do it two or three times to ensure that I don't lose any files.

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Ubuntu :: 3TB HD (with Data) Expanding To 3x3TB RAID (without Losing Data)?

Jul 27, 2011

Right now I have a 320GB system drive and 3TB data drive. I want to add two more 3TB drives and do a software RAID5 3x3TB. Is that possible without losing the data that is already on the data drive?Just want to make sure before I bought the 2 two drives. Not looking for instructions on how to do it,but if you want to include some that would be great too Just making sure it will work.

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Ubuntu :: Convert External Drives From Fat32 To Ext3 Without Loss Of Data?

Feb 25, 2011

I have 2 external drives that I'm using for movies and they're both formatted to fat32. The problem I'm experiencing now is that some of the high quality mkv files are not able to be moved to the drive because of fat32's limitations.

I'd like to convert to ext3 (or 4) and I wanted to check to see if I can do it without having to reformat and without loss of data.

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Fedora Hardware :: Copy From Or To Files The Raid Collapse And Rebuilds Data?

Jun 16, 2011

I have bought a lian li ex-50 raid case with e-sata i have 5 1tb disks in it with raid3 and ext4 format.

Untill now was ok but after upgrade to fedora 14 or 15 that i have tried when i try to copy from or to files the raid collapse and rebuilds data(i dont loose data) .....

I want to take the data from it so i can format it with ext3 or ntfs and use with my server on the network,or if there is any solution with the ext4 format

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Debian Configuration :: Multiple Partition Setups Other Than Resistance To Data Loss In Crashes?

Feb 25, 2010

What are the advantages of the multiple partition setups other than resistance to data loss in crashes? Is there any other reason to have a special partition just for your boot directory (kernel files and config) than surviving a major crash?

Also, is it possible to make the Debian installer accept an existing set of partitions? Or even alter the size of the automatically created partitions? Does expert mode let you control the partitions? How many other very detailed things would I have to know to use expert mode, though?

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CentOS 5 Hardware :: Logical Drives Disable Due To Data Loss Error Message

May 25, 2010

We have made a fresh installation on DL 580 G 5 Server. The installation Completes successfully. When we reboot the server we find an error message " Logical Drive Disable due to Possible Data Loss. and then non system disk or disk error.

Due to this we have lost all of the data. We can successfully install Windows Server 2008 or 2003 or Redhat Enterprise Linux 5 on this server with no error no issue.we can successfully install Windows Server 2008, 2003 or RedHat Enterprise on RAID 5 or RAID 6 Or RAID 1 or RAID 1+0. we dont face any issue on these windows or linux platforms.We are only facing RAID Controller Issue on CentOS 5

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Fedora Installation :: Setup RAID 10 With Fedora 11 On Desktop?

Aug 11, 2009

I've been trying to setup RAID 10 with Fedora 11 on my desktop using this tutorial:[URL].. Everything has been going well, except when following the instructions and getting ready to format, it says I need to define / and boot partitions. This was never included in the instructions.

- LVM Volume Gropus
-- vg_jordan
--- fedoraRAID (type: ext4)
- RAID Devices
-- /dev/md0 (mountpoint/RAID/volume: vg_jordan ; type: LVM)

[Code]...

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Fedora Servers :: Setup RAID On DELL Server With F10 64Bit OS?

Jan 22, 2009

I have had no problem installing Fedora OS on any of my Dell servers prior to this post. Anyway, I wouldn't call this a problem but recently, we bought another DELL server with Quad Core, 4GB, etc... AND this model has 2 swappable SAS Harddrives.

I wouldn't call myself an expert but then again I am not a newbie too. However, I have never setup any RAID before and now I am forced to setup RAID1 on this server. So, in a way, I am a newbie in setting up RAID

Would someone please point me in the right direction as I have no idea what I am supposed to do to setup the RAID. FYI, I will be installing Fedora 10 64bit on this server. I would appreciate if you can start from the very beginning, ie. partitioning, formatting the harddrives during OS installation, etc..

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Fedora Servers :: RAID 6-like Setup With Dissimilar Disk Sizes?

Jun 7, 2010

I'm looking to set up a bit of a home server, and am wondering about storage. What I'd like is something like RAID 6, which has good redundancy built-in, but with this being a home server, I'd prefer to start a little smaller and leave room to build it up in future. I'd been looking at commercial products like the 'drobo', which seems fairly ideal, but I'd really like to see if I can do it myself. I understand that throwing the RAID into an LVM will allow for some expansion, but the last time I checked, most RAID setups called for the same sized disks, or at least limited the array by the size of the smallest disk present.

What I'd like is the ability to build a basic framework with a few cheap disks, and then as things start filling up, to be able to add larger ones (perhaps eventually pulling out smaller ones as though they'd failed and replacing them with big ones)

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General :: Ubuntu 10.04 - Cannot Setup GRUB On RAID 0 Setup Disks

Jun 4, 2010

I've been all afternoon trying to install Ubuntu Lucid on my fakeRAID 0 configured (2) HDDs and am unable to set GRUB up. The fake RAID setup is provided by Intel Matrix Storage Manager, it is correctly enabled and the BIOS is also correctly set up -- in fact, I've managed to install Windows 7 with no significant hitch. After struggling with partioning the drives (had to follow advice I found on a very helpful guide online [0]), creating the filesystems AND getting Ubuntu's installer to actually do what it is supposed to do, I now cannot seem to set GRUB up. My system, as it stands, is unbootable at all; via live CD only.

This is how the RAID0 dev is partitioned:
Code:
# fdisk -l /dev/mapper/isw_ecdeiihbfi_Volume0
Disk /dev/mapper/isw_ecdeiihbfi_Volume0: 1000.2 GB, 1000210694144 bytes
255 heads, 63 sectors/track, 121602 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 131072 bytes / 262144 bytes
Disk identifier: 0x6634b2b5 .....

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Fedora Installation :: Install F13 On A Server That Has A 2-disk RAID Setup In The BIOS?

Jul 8, 2010

I'm attempting to install F13 on a server that has a 2-disk RAID setup in the BIOS. When I get to the screen where I select what drive to install on, there are no drives listed. The hard drives were completely formatted before starting the 13 installation. Do I need to put something on them before Fedora will install?

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Fedora :: F14 - Very Annoyed With Software RAID Setup - Cannot Find Superblock At Reboot?

Nov 20, 2010

I recently upgrade to Fedora 14 from 13. It was an in-place upgrade. I can't recall for sure, but I do believe I had these problems in F13 before the upgrade. The F13 install was from a Live CD. Anyway, I have a three drive RAID 5 array setup - 3x 750GB. For some very annoying reason, each time I reboot my F14 system, it hangs with an error about not being able to find a superblock on /dev/md126 and /dev/md127. I have tried to stop and remove /dev/md126 and /dev/md127 but they always seem to come back. I have also noticed in the output of fdisk -l that drives sda and sdd like to swap places sometimes for an unknown (to me) reason. Any other output that is needed, please ask. I recreated the array just yesterday with:

Code:
mdadm --create --verbose /dev/md0 --level=5 --raid-devices=3 /dev/sdb1 /dev/sdc1 /dev/sdd1
I would cat mdadm.conf in /etc, but I removed it previously to try to figure out the problem and it was not

[code]....

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Fedora Installation :: Using The F10 Live CD To Setup Software RAID 1 Between 1 Hard Drives For Redundancy & Fstab

Apr 15, 2009

I have been battering with FC10 and software RAID for a while now, and hopefully I will have a full working system soon. Basically, I tried using the F10 live CD to setup Software RAID 1 between 1 hard drives for redundancy (I know its not hardware raid but budget is tight) with the following table;

[Code]....

I set these up by using the RAID button on the partition section of the install except swap, which I set-up using the New partition button, created 1 swap partition on each hard drive that didn't take part in RAID. Almost every time I tried to do this install, it halted due to an error with one of the raid partitions and exited the installer. I actually managed it once, in about...ooo 10-15 times of trying but I broke it. After getting very frustrated I decided to build it using just 3 partitions

[Code]....

I left the rest un-touched. This worked fine after completing the install and setting up grub, reboot in to the install. I then installed gparted and cut the drive up further to finish my table on both hard drives. I then used mdadm --create...etc to create my RAID partitions. So I now have

[Code]....

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Fedora Hardware :: Motherboard Configuration - Raid Setup Utility Shows Drives Out Of Order

Sep 19, 2010

I just went out and bought stuff to build a new computer, and among the parts was a Gigabyte ga-890fxa-ud5 motherboard ([URL]). The board has 3 (well, 4, but we'll stick to the 3) main sata interfaces, with 2 slots per interface, allowing 6 sata drives. In slot_0 i put my blu-ray drive, in slot_1 i put my drive that will host the OS and its partitions, and that is in the sata connector pair on the left. The middle sata connector pair (slot_2 and slot_3) i have 2 2tb drives, and in the sata connector pair on the right (slot_4 and slot_5) i have 2 1.5tb drives.

[Code]....

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Red Hat / Fedora :: Format For Server & RAID Setup For Multi Platform Read/write/access?

Jun 23, 2011

I'm looking to set up a server with attached mass storage device and tape autoloader to run linux. It's set up under Windows at the moment. Goal is to have users, connecting from individual workstations and laptops, backup their data to the linux server. On their personal machine, some users run linux, some MacOS, some Windows. I plan to set up the 5 500 GB drives as RAID5. I understand that if setting up as software raid the format is "physical volume for RAID". Under this setup, will Windows users be able to read/write and function as expected? I can't assume only linux user access.

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Fedora Installation :: Setup Dual Bood Data Partition And Move /home?

Feb 21, 2009

I have just spent dome time using gparted to sort out my partitions. I have a vista partition, a fedora one and a big chunk of unallocated space I wish to use as my data drive.

I want to move my ~ folder to the new partition and have windows/vista access the folder and write to the Documents, Downloads folders etc.

What is the best format to use?

Also I plan to start backing up my partitions to a server, for instance using g4l to save a linux image (maby a windose one too). Is there any benifit in keeping all the hidden files (ones starting with period '.') i.e moving the whole ~ folder or would I be best off leaving the ~ dir and moving the folders I know i use such as ~/Downloads, ~/Documents etc?

And how should i preform the move of all these files? 'mv'? do i need to add any special options?

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CentOS 5 :: Redistribute A Disk Without Loss Of Data Namely It Is Necessary To Make / Boot And Two Equivalent On Disk Volume?

Aug 24, 2009

There is a disk 500 gb, it is broken on /boot and on /root and on /dev/sda1 and /dev/sda2. Whether prompt it is possible to redistribute a disk without loss of data namely it is necessary to make/boot and two equivalent on disk volume.

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