General :: Files That Span Multiple Drives Drives?
Jan 8, 2010
So, at the moment I have a 7TB LVM with 1 group and one logical volume. In all honesty I don't back up this information. It is filled with data that I can "afford" to lose, but... would rather not. How do LVMs fail? If I lose a 1.5TB drive that is part of the LVM does that mean at most I could lose 1.5TB of data? Or can files span more than one drive? if so, would it just be one file what would span two drives? or could there be many files that span multiple drives drives? Essentially. I'm just curious, in a general, in a high level sense about LVM safety. What are the risks that are involved?
Edit: what happens if I boot up the computer with a drive missing from the lvm? Is there a first primary drive?
I have two 1TB drives I want to span for the storage area of mythtv. Not for swap, system or anything else, just storage of myth's files.
My mythserver died and I'm rebuilding from scratch, in a previous life I'd used mdadm and a software raid 0. But this was always a bit of a pita and I'm told it's not necssary. What's the most efficient method of using two drives and could someone point me towards a how to on the subject?
I installed three O.S on one drive. I disconnected this drive and installed two more OS's on the the next drive. On the first drive all three were bootable and on the second only the first O.S. would boot. The second drive booted both O.S at first and then stopped. I used a rescue disk on the second drive with two on it and it made no difference. I did the same to the first drive and I sort of joined the to boot loaders together in a non appreciative way.
Is is practical to do what I tried doing and should I just multiboot off one drive? I would like about eight O.S's on the same computer.
Right so my situation is a little obscure and from all the posts I've read through I can't find one that suits me well enough.My PC's hard drive recently went on the fritz so I backed up all my data, got a brand new Terrabyte hard drive and then put all my stuff on there. I also plugged in the fault drive as a secondary and ahev cleared most of the stuff off it. It's separated into two partitions; E: and F: but together make about 600 gigs. I then have two external Terrabyte hard drives, it's a long story but their connected via USB.
Now I really like the idea fo getting to grips with Linux. I don't want to use a LIVE CD, I've done that already and I want to see how I get along using it as a proper OS. I also really need to keep the Windows Vista for several reasons, most importantly for iTunes which I use to keep my iPhone and iPad up to date and I've heard iTunes and linux don't get along too well, even with programs like WINE. So obviously I'm looking to dual boot and keep all my data but what would be the best way to go about it? Stick it on my primary drive? Or on my slightly faulty drive? Or on one of my two externals? On the bright side, because I'm on a fairly new hard drive, my Vista runs really smoothly, and so I shouldn't encounter too many bugs that windows is renowned for a long the way...
I'd also like to be able to access all my data from both OSs so I don't have to keep jumping from one OS to another. Is that possible? or simple to accomplish?I have a pretty good Nvidia graphics card too, so I'd appreciate it if someone could explain how I get XGl working on Fedora once it's all set up.
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.
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
I suspect this is not new but I just can't find where it was treated. Maybe someone can give me a good lead.I just want to prevent certain users from accessing CD/DVD drives and all external drives. They should be able to mount their home directories and move around within the OS but they shouldn't be able to move data away from the PC. Any Clues?
i have recently setup and installed Ubuntu 9.04 on a virtulal drive usingVMWare 6.04, installed the desktop gui as well, I need to add other drives for data and loggng, which I did in the VMWare side. I can see the 2 drives in ubuntu, but can not access them, I get he unable to mount location when I try. How can resolve this please as I need these to virtual drives to be used as data drives.
I've used it once before but got fed up with the boot asking me everytime I turned my laptop on because I wasn't using it enough. I have Windows 7 on drive C . I want to keep it on drive C. I have several 1.5TB+ drives, and one of them is not being used. I want to dedicate it to Ubuntu, and be able to do a dual boot with my Windows 7 install. Is this possible? If it is, what about when this drive is not connected to my laptop? Will that mess up the boot process?
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?
i am new in Linux. i have two drives one IDE and other SATA in my computer.i want to keep windows XP , WIndows 2003 server on one drive and two flavours of linux on the other drive, let say oopen suse and redhat.please help me how i install these sofwares to make multi boot the machine.
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.
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?
I am running Karmic on a stripped laptop, and running it off a usb thumbdrive.Its purpose is mainly as a slide show/video show inset in a tableI did not really want to go out and buy a HDD, since it does not need to store that much. Then I went to aldi and they had 8gb flash drives for $5, so I got 6. The ultimate question comes down to the best way to make use of them. I ordered a 7 slot USB hum off ebay for cheap, and I was going to go from there. would it be easier/better to just plug them in and make links to them from the normal folders and just operate directly from there, or is there a better option. I guess a usb raid array could be neat
(tangent to my other thread "Karmic -> Lucid not booting"). I have four hard drives on a Lucid box, and (as it happens) the fourth drive is the boot and root. Could I also install grub on the other three (ext4) hard drives, keeping the same root? Will this disturb the data there? How would the machine decide which copy to use, anyway?
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.
I've got a 10.10 installation, which I am using as a media/download server. Currently everything is stored on a 1TB USB drive.With the costs of disks falling, and the hassle of trying to back 1TB up to DVD (no, it's not going to happen) I was wondering if there's some linux/Ubuntu utility, which can use multiple disks to provide failover/resilience ... Could I just buy another 1TB drive, and have it "shadowing" the main, so that if one goes, I buy another, and then restore from the copy ?
I am running Ubuntu on a box with a couple of hard drives, and on a network where we have another Ubuntu machine and a couple of windows boxes. I use filezilla to upload files to other web servers but filezilla will only access files on my main hard drive, not on the second drive and not on the rest of the network.
I am just trying F-Spot because a novice ubuntu friend needed help. ubuntu 10.04.2. As a test, on my PC, I have pasted some photos into a particular test folder in my current Ubuntu (in my user folders). I have also nominated a folder as a destination for imported photos. After starting F-Spot, I try to use the test (source) folder in F-Spot with the intention of importing the test photos.
I am using a PC with three hard drives. One has various distros installed, mostly ubuntu versions, all in their own partitions. The other two hard drives are ones I use for data, including backups. They are both continuously mounted. However, the import 'file finder' facility only lists the two data drives, it does not list the current home user folders, which is where my test (source) folder is(!!!)
I am thinking of building a new computer. I have been using Ubuntu for a couple years now, but I am not good with the terminal usage. Nevertheless, if I was to go back to Windows I be lost. My Computer would be:
Motherboard = Micro ATX Hard Drive 1 80GB = Operating System Hard Drive 2 250GB = Home (my documents) Hard Drive 3 500GB = Media (videos, music & pictures)
I would like the file to end up on the desired hard drive automatically. And my main menu to display accordingly. In other words, when I click over music, under places in my computer menu, for the computer to know which hard drive to go to. The reason for wanting this setup is, to provide security for the OP, separate my private documents from my music and videos. Now I am using external hard drives. But, it just do not look right, besides the menu is funky.
Would I have to use a RAID set-up or just the partition tool. Does anyone knows of a post or tutorial on how to accomplish this? (plain English would be better).
I am doing a new build with an SSD / HDD combo, and I am wondering, is there a way I can install Ubuntu spread across both drives? I know I can do this in Fedora, but I haven't seen much of a feature like this in Ubuntu.
The goal is to have a single folder that has symlinks to all the files in each of the drives. Pretty much a poor man's JBOD. Previously, I had problems with conditions like 2 drives having the same sub folder contents, but I ended up solving that with the current script I'm using now.What I'm looking for now is speed. I'm very new to Perl and the script takes about 12 minutes to complete with the current drives.
Basically, the script makes a list of all directories and files in each drive. First, it makes the directories. I didn't use any validation because if a directory already exists, it simply won't make one. However, with the files, I used a hash to only keep the unique files. Then I use the key/value pairs with ln to create every link to the files only, not directories.
#!/usr/bin/perl use warnings; my @drives_to_sync = qw ( /mnt/sda/ /mnt/sdb/ /mnt/sdc/ /mnt/sdd/);
I am making the transition to either Ubuntu or Kubuntu in the next couple days. I have been running the Win7 evaluation version which is pretty much just Win7 Ultimate.Two are internal, four are external. All of them are NTFS. So are my pen drives (512MB and 8GB). Will these Linus distros be able to access these drives? If so, to what degree? Everything I have read online so far seems to give Linux a mixed track record when it comes to working around NTFS security, etc.
How to mount multiple external HDD's. I'd like to link or mount the music, torrents, and general files from several external hard drives and apply permissions (in some cases I only want the mount or link to be read only).
My setup: - Seagate Dockstar running Debian squeeze (it's headless so I don't have a gui running) - Two external HDD's with one partition on each (250GB and 400GB)
What I'd like to accomplish: 1. Mount the external HDD's to /media/HDDs as read/write (this is already working using udev and autofs and it's available in samba) 2. I'd like the MUSIC directories on both external HDD's to show up under the same mount point. In other words I want the MUSIC folders (from both HDD's) to appear as one large library of music. And I only want this to be readonly. It will be used as the library for mpd and/or squeezebox. 3. Mount a directory used to download torrents to. I'll probably pick on HDD as the target for torrent dowloads. But let me know if you have any other ideas regarding this.
Since I have the first one done, how would I accomplish 2 & 3?
I just created a 2nd user on my computer. I've got the hard drive that ubuntu runs on, and then a 2tb drive for media. If the 2tb is mounted on my desktop, it won't show up on his desktop even if I'm logged out. It won't show up on his unless I unmount on mine.
If I'm logged out I'm obviously not using it. So why doesn't it show up? He has all privileges. Is there a way to make this work without having to unmount?
I'm running karmic btw. If you need computer info let me know what to type into the terminal and whatnot and I'll paste it all here!
I have been trying to install Ubuntu on my new computer as a duel boot with Windows 7. My computer has four 1TB hard drives, One with Windows 7 installed, two that are used for storing media (both are independent, not in a RAID or anything like that) and one empty hard drive. This hard drive contains a 901.51 GB NTFS partition, and 30.00 GB of Unallocated space, I wish to install Ubuntu in this unallocated space; giving it 20 GB (the 10 GB left over might be used for installing XBMC Live). But when I boot Ubuntu's Live CD the installer doesn't show me the unallocated space, and doesn't really show me any of the extra Hard drives.
I have what will soon become a file server here running Mandriva 2009.1 and I need to set it up for use. There are 6 physical drives, sda-sdf. According to my fstab (pasted below), the OS is installed on sdb.. and for some reason I have a swap partition on sda and sdb. I had a horrible time getting a working installation, and that's probably leftover from a previous attempt.
Question 1: Can I simply edit my fstab to remove the swap on sda, effectively confining all system resources to sdb? The end result I want is all storage space over all drives accessible from a single mount point which can be accessed over the network.
Question 2: Once I sort out the weird fstab, what's the best way to go about setting this up? I imagine I need to format & partition the other drives (all but sdb).. but as far as organizing the free space, what's the best way? Is it possible to have multiple physical drives accessible from a single mount point? Or will the users have to use each drive separately? I was thinking I could create a directory on sdb (in /home?) to use as a root for the network share, and then automount the other 5 physical drives there. Does that make sense?