Red Hat :: Difference Between RAID Versus LVM
May 22, 2011What is the difference between RAID versus LVM?
View 2 Replies
ADVERTISEMENT
OpenSUSE :: FreeNX On 11 Versus 11.1 - What's The Difference
Jan 13, 2011I have a script that basically adds a zypper repo, then proceeds to install and configure FreeNX.To add the repo:
Code:
zypper addrepo Index of /repositories/X11:/RemoteDesktop/openSUSE_11.1 RemoteDesktop
To install FreeNX & it's relevant dependencies:
Code:
zypper install FreeNX
To setup and configure FreeNX:
Code:
nxsetup --install --setup-nomachine-key --clean --purge
sed -i 's/AllowUsers idcuser/AllowUsers idcuser nx/' /etc/ssh/sshd_config
service sshd reload
[code]....
After completing these steps on version 11, I can immediately open the FreeNX client (windows 7), and connect. On 11.1, at the very end of the FreeNX connect, just after "Dowloading the session information", I get:
Code:
NX> 105 startsession --link="lan" --backingstore="1" --encryption="1" --cache="16M" --images="64M" --shmem="1" --shpix="1" --strict="0" --composite="1" --media="0" --session="170.224.164.19" --type="unix-gnome" --geometry="1274x956" --client="winnt" --keyboard="pc102/en_US" --screeninfo="1274x956x16+render"
Permission denied (publickey,keyboard-interactive).NX> 280 Exiting on signal: 15 I've googled this to death, and tried a bunch of random changes to both ssh and nxserver, but I can't seem to get rid of it. What might have changed from 11 to 11.1 that could cause this behavior change? The NXserver seems to be configured and running identical on both systems.
Software :: Difference Between Source Versus SRC - RPM
Mar 11, 2010It is my understanding that building from source is slightly faster since the created binary will be specific to the current kernel/system. This seems to have the drawback of when the kernel is upgraded the source compiled package will no longer work...but this is not always the case. So what kernel upgrades will cause a package from source not to function? Side bar to that, I have a package that is only available in source format that I need to install on numerous hosts. It seems that the upfront work of creating my own RPM for this package is worth it to make managing the package more efficient, and I think I have two choices: src-rpm and standard binary rpm. If I build a src-rpm and I distribute that for installation will a kernel upgrade 'break' the package since it is actually being compiled for a specific kernel at the time of install? So far I have found a lot of information, and have spent time reading the rpm docs, etc, but I don't feel like I have a good grasp of what the specific portability differences are between source, src-rpm, and rpm.
View 1 Replies View RelatedUbuntu :: Kubuntu Versus: KDE The Only Difference?
Jul 3, 2009I recently made an Ubuntu liveCD for a family member, and tested it myself first. It impressed me, so I might possibly be interested in switching distros; but I'm not very familiar with Gnome(GNOME?), so I might try Kubuntu instead. Am I correct in understanding that the only difference is Kubuntu uses KDE (hence the K)? If there are other differences, does Kubuntu share the limited user control that I've heard Ubuntu has, such as locking the root account by default?
View 8 Replies View RelatedHardware :: Performance Difference - Dual Versus 3 Channel RAM
Apr 12, 2009There are 3 channel DDR-3 RAM kits available on market.Would its performance be better than dual channel RAM kit, apart from RAM capacity? I'm planning to build a new box testing server consolidation on virtualizaion running Xen/Vserver/OpenVZ as software. All servers running 64bit Linux OS. My new planning is to get 2 sets DDR-3 1333/1600 4Gx2 kit. I may consider 3 channel kit dropping the total RAM capacity to 6G if it has better performance. Besides can mobo support dual channel RAM also allowing 3 channel RAM to work on it without sacrifying performance?
View 2 Replies View RelatedGeneral :: KDE3.5 Versus KDE4 - Difference In Memory Requirements?
Feb 7, 2010Does kde3.5 differ much in memory requirements from kde4? I'm running kde4 on an old thinkpad with 256mb ram and everything is a little slow...
View 8 Replies View RelatedCentOS 5 Hardware :: Fake Raid Versus Hardware Raid After A Hardware Failure?
Oct 12, 2010Recently while using a Highpoint 2310 (raid 5) I lost the mother board and CPU. I had to reinstall Centos and found it needed to initialize the array to function. Total loss of date. Question: If I use a true hardware card (3ware 9650se) and experience a serious hardware loss or the C drive can the card be installed with the drives on a new motherboard and function without data loss even if the OS must be reinstalled.
View 4 Replies View RelatedSlackware :: Software RAID 1 Versus LILO / Kernel-generic - ERROR: No /sbin/init Found On Rootdev
Jul 1, 2011I'm currently trying to setup Slackware 13.7 on a server, using software RAID 1. I'm using the README_RAID.TXT document at the root of the Slackware disc as a reference. Anyway, here's what I have so far.
/dev/md1 -> /boot partition
/dev/md2 -> swap partition
/dev/md3 -> / partition
Code:
[root@raymonde:~] # fdisk -l /dev/sd{a,b}
Disk /dev/sda: 41.1 GB, 41110142976 bytes
255 heads, 63 sectors/track, 4998 cylinders, total 80293248 sectors
Units = sectors of 1 * 512 = 512 bytes
[code]....
I created an initrd image using mkinitrd -F, added an according stanza to /etc/lilo.conf and ran 'lilo' after that. Now I can boot on the vanilla huge kernel all right. But I can't seem to boot on the generic kernel. Whenever I try to do this, the boot process stops short on the following error message:
Code:
mount: mounting /dev/md3 on /mnt failed: Device or resource busy
ERROR: no /sbin/init found on rootdev
Ubuntu Installation :: Difference Between RAID And LVM
Jul 29, 2010I am currently in the process of making a file server at home. My friend suggested that I do an LVM (more for learning purposes than anything) instead of a RAID. I have a RAID card with 5 HDD's attached (each one being a 250GB ATA HDD) to the computer. I am planning on using these for the server.
View 4 Replies View RelatedServer :: Debian RAID 10 Spare Drives Versus Active Drives
Jun 9, 2011so I setup a raid ten system and I was wondering what that difference between the active and spare drives is ? if I have 4 active drives then 2 the two stripes are then mirrored right?
root@wolfden:~# cat /proc/mdstat
Personalities : [raid0] [raid10]
md1 : active raid10 sda2[0] sdd2[3] sdc2[2] sdb2[1]
[code]....
Ubuntu Servers :: RAID-5 Recovery (spare/active) / Degraded And Can't Create Raid ,auto Stop Raid [md1]?
Feb 1, 2011Could 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.
Ubuntu :: Mdadm Raid + GRUB = Not Booting - Error: Unsupported RAID Version: 0.91
Jul 18, 2011I have a raid5 on 10 disk, 750gb and it have worked fine with grub for a long time with ubuntu 10.04 lts. A couple of days ago I added a disk to the raid, growd it and then resized it.. BUT, I started the resize-process on a terminal on another computer, and after some time my girlfriend powered down that computer!
So the resize process cancelled in the middle and i couldn't acess any of the HDDs so I rebooted the server.
Now the problem, the system is not booting up, simple black with a blinking line. Used a rescue CD to boot it up, finised the resize-process and the raid seems to be working fine so I tried to boot normal again. Same problem. Rescue cd, updated grub, got several errors: error: unsupported RAID version: 0.91. I have tried to purge grub, grub-pc, grub commmon, removed /boot/grub and installed grub again. Same problem.
I have tried to erased mbr (# dd if=/dev/null of=/dev/sdX bs=446 count=1) on sda (ide disk, system), sdb (sata, new raid disk). Same problem. Removed and reinstalled ubuntu 11.04 and is now getting error: no such device: (hdd id). Again tried to reinstall grub on both sda and sdb, no luck. update-grub is still generating error about raid id 0.91 and is back on a blinking line on normal boot. When you'r resizeing a raid MDADM changed the ID from 0.90 to 0.91 to prevent something that happend happened. But since I have completed the resize-process MDADM have indeed changed the ID back to 0.90 on all disks.
I have also tried to follow a howto on a similar problem with a patch on [URL] But I cant compile, various error about dpkg. So my problem is, I cant get grub to work. It just gives me a blinking line and unsupported RAID version: 0.91.
General :: Migrate An Installed Ubuntu System From A Software Raid To A Hardware Raid?
Jun 29, 2011migrate an installed Ubuntu system from a software raid to a hardware raid on the same machine? how would you go about doing so?
View 1 Replies View RelatedServer :: How Long Does Hardware Raid Card (raid 1) Take To Mirror 1 TB Drive (500gb Used)
Mar 22, 2011How 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 RelatedCentOS 5 Hardware :: Connect A RAID Box To The Server Via LSI 8880EM2 RAID Controller
Aug 3, 2010I am trying to connect a RAID Box to the server via LSI 8880EM2 RAID controller.The raid box is FUjitsu Externus DX60 with raid 1 configured.The server is Fujitsu Primergy SX300 S5 with LSI 8880EM2 RAID card.The external raid box is being recognised by the raid controllers bios.
The server runs CentOS 5.5 64bit. I have installed the megaraid_sas driver from LSI website and MegaCLI utility but CentOS still fails to see the box.MegaCLI utility, when launched from CentOS, recognises the raid box, CentOS does not(no mapping being created in /dev).
I have also tried to create a logical RAID0 HDD on one physical HDD(as seen by MegaCLI) with MegaCLI utility in CentOS.The result was success and the new logical drive could have been used, but when restarting the server, the controllers' bios fails with an error (not surprised(one logical RAID0 on one physical HDD)) and configuration is being erased.
Has anyone tried connecting 8880EM2 controller to a raid box with raid configured on the box, running it all under CentOS and what were the results.
Ubuntu Installation :: Dual Boot - Win 7 And 10.10 On Raid 0 - No Raid Detect
Nov 26, 2010I have installed Ubuntu on my m1530 since 8.04 and currently dual boot Win7 and 10.10. I would like to dual boot on my PC, but I have run into a problem. I am not a pro at Ubuntu, but this problem I can not solve by reading forums like I have in the past.
I realize this is a common problem, but I have noticed people having success.
I have a M4A87TD EVO MB with two Seagate drives in Raid 0. (The raid controller is a SB850 on that MB) I use the raid utility to create the raid drive that Windows7x64 uses. I have 2 partitions and 1 unused space. Partition 1 is Windows, partition 2 is for media, and the remaining unused space is for Ubuntu.
I am running ubuntu-10.10-desktop-amd64 off a Cruzer 16GB flash drive that was installed via Universal-USB-Installer-1.8.1.4.
My problem like so many others is that when I load into Ubuntu, gparted detects two separate hard drives instead of the raid. I read that this is because kpartx is not installed on 10.10. I then went in LiveCD mode and downloaded kpartx from Synaptic Manager. Gparted still reported two drives. I opened terminal and run a few commands with kpartx. I received an error. (Forgive me I didn't write it down, but I believe it said something about a communication error. I will try again later and see.)
Currently I am reflashing the Cruzer with a persistence of 4GB. I am not familiar with this process, but I understand that my LiveCD boot will save information I download to it. I decided to try this method because I was going to install kpartx and reboot to see if this made a difference.
I am looking for any suggestions on a different method or perhaps someone to tell me that the raid controller or some hardware isn't supported. I did install ubuntu-10.10-alternate-amd64 on my flash drive, but fail to get past detecting my CD-ROM drive since it's not plugged in. If this method is viable, I will plug it in. I also watched the ..... video were a guy creates Raid 0 with the alternated CD, but it wasn't a dual boot and didn't use a raid controller from a MB.
Hardware :: RAID - Create RAID 1 Without Deleting Data?
Jul 18, 2009how 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 ?
View 3 Replies View RelatedSlackware :: Windows Raid-O Install Virtualbox, Will Slackware Install Raid-o Without Raid Driver?
Feb 28, 2011If I have a windows installed in raid-0, then install virtualbox and install all my linux os,s to virtualbox will they be a raid-0 install without needing to install raid drivers?
View 1 Replies View RelatedUbuntu :: Converting RAID 1 To RAID 5 System
Jun 12, 2010I 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?
View 1 Replies View RelatedCentOS 5 Hardware :: RAID Or Non-raid HBA Recommendation?
Dec 10, 2009I am going to be using CentOs 5.4 for a home storage server. It will be RAID6 on 6 x 1TB drives. I plan on using an external enclosure which is connected via two SFF-8088 cables (4 drives a piece). I am looking to try and find a non-RAID HBA which would support this external enclosure and allow to use standard linux software raid.
If this is not an option, I'd consider using a hardware based raid card, but they are very expensive. The Adaptec 5085 is one option but is almost $800. If that is what I need for this thing to be solid then that is fine, I will spend the money but I am thinking that software raid may be the way to go.
General :: GUI Versus RPM And APT
Apr 6, 2010Why should I concern myself only with a graphical front end rather than learning APT or RPM? Or are those really, really hard to learn?
View 7 Replies View RelatedUbuntu Installation :: Dual Boot SSD Non Raid - 1 Terabyte Raid 1 Storage "No Block Device Found"?
Sep 15, 2010It's been a real battle, but I am getting close.I won't go into all the details of the fight that I have had, but I've almost made it to the finish line. Here is the set up. ASUS Z8PE-D18 mother board 2 CPU, 8 Gig Ram. I recently added an OCZ Agility SSD, defined a raid 1 virtual disk on the 1 terabyte WD HDD drives, which will holds all of my user data, the SSD is for executables.The bios is set to AHCI. Windows 7 installed fine, recognizes the raid VD just fine.
I installed Ubuntu 10.04 by first booting into try and mode, then opening a terminal and issuing a "sudo dmraid -ay" command. Then performing the install. I told it to install the raid components, and told it to let me specify the partitions manually. When setting up the partitions, I told it to use the free space I set aside on the SSD from the Windows 7 install as ext4 and to mount root there. Ubuntu installed just fine, grub2 comes up just fine, and Windows 7 boots with out a hitch, recognizing the mirrored partition as I indicated previously. When I tell grub to boot linux however, it pauses and I get the "no block devices found" message. It will then boot, but it does not recognize the raid array. After Ubuntu starts up I can run "dmraid -ay" and it recognizes the raid array, but shows the two component disks of the raid array as well. It will not allow the component disks to be mounted, but they show up which is annoying. (I can live with that if I have to)
I have fixed a similar problem before by setting up a dmraid script in /etc/initramfs-tools/scripts/local-top ... following the instructions found at the bottom of this blog:[URL].. To recap: My problem is that after grub2 fires up Ubuntu 10.04.1 LTS (Lucid Lynx), it pauses, and I get "no block devices found" It then boots but does not recognize the raid array untill I manually run "dmraid -ay". I've hunted around for what to do but I have not found anything. It may be some timing issue or something, but I am so tired of beating my head against this wall.
Server :: Convert Raid 1 To Raid 10?
Jul 21, 2011I am looking to convert a raid 1 server I have to raid 10. It is using software raid, currently I have 3 drives in raid 1. Is it possible to boot into centos rescue, stop the raid 1 array. Then create the raid 10 with 4 drives, 3 of which still has the raid 1 metadata, will mdadm be able to figure it out and resync properly keeping my data? or is there a better way to do it?
View 2 Replies View RelatedServer :: Tur A Non-RAID System To RAID?
Mar 24, 2011I 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.
View 3 Replies View RelatedFedora :: PolicyKit - F12 Versus F11
Dec 30, 2009In F11 to run PolicyKit I entered the following at the command line.
polkit-gnome-authorization
In F12 this doesn't work. I get an error message "command not found"
How do I access PolicyKit in Fedora 12?
Ubuntu Multimedia :: K3B : Rip To Mp3 Versus Ogg?
Dec 19, 2010I'm on Ubuntu 10.10
I was using K3B the other day and could not find an option to rip a CD to mp3 files instead of ogg. How can I do this?
Ubuntu Installation :: 64 Bit Versus 32 Bit
Jun 15, 2011I just built a computer with a MSI 760GM-E51 Motherboard, AMD Phenom II 955 CPU and 4 GB memory (2 x 2 GB G.Skill DDR3-1333 PC3-10666) I first installed 10.04 LTS 64bit. But I think I am going to go to 11.04. I am just looking for a vote, would you install 32 or 64 bit. I am not a real power user, biggest thing I would do would be video editing. If I am going to play resource demanding games, I would probably boot into XP.
View 6 Replies View RelatedFedora X86/64bit :: Use Fedora / Linux Raid Program To Manage Raid Array?
Jun 24, 2009I've tried to install Fedora 11, both 32 and 64 on my main machine.It could not install as it stops on the first install window. I've already filed a bug but really haven't seen any feed back yet.The bug has something to do with Anaconda and the Raid array but I really can't tell.
I have an Intel Board (see signature). I am running intel raid software under W7 currently.It works fine. But, I'm wondering, when I attempt to install F!!, is my current raid set-up causing problems? Do I need to get rid of the intel raid software and use a Fedor/Linux raid program to manage the raid array??
Fedora :: Gnome Versus KDE Applications
May 31, 2010I installed Fedora 13 and use the Gnome desktop. I want to keep my installation as clean as possible and have heard some contrary advice about installing both Gnome and KDE desktops, so I want to stay with just Gnome. In the past I have mixed both and feel that resulted in tons of packages that I probably didn't need and tons of updates all the time. However, some applications seem to be KDE applications and installing them requires installation of many KDE packages. This is a source of confusion for me:
Is there a distinction between Gnome applications and KDE applications? If so, how do you tell the difference? Should one NOT install KDE applications if you are using the Gnome desktop and not interested in installing KDE desktop? Is there a best practice on how to approach which software to install so that you do not create a mix and match mess?
Ubuntu Multimedia :: ATI Versus Nvidia
Jul 18, 2010Are there big disadvantages to building a computer around a motherboard with ATI Radeon graphics instead of Nvidia? I am using an AMD CPU to save money, but all the motherboards AMD recommends use ATI. I have always used Nvidia in the past, And am not sure what the current state of ATI Linux drivers is. I know I would be giving up VDPAU acceleration for video playback, but hopefully the Athlon� II X4 635 processor I am looking at has enough horsepower to handle this on it's own, even for high-def h264.
View 7 Replies View Related