Server :: Dual Drive Failure In RAID 5

May 22, 2009

I *had* a server with 6 SATA2 drives with CentOS 5.3 on it (I've upgraded over time from 5.1). I had set up (software) RAID1 on /boot for sda1 and sdb1 with sdc1, sdd1, sde1, and sdf1 as hot backups. I created LVM (over RAID5) for /, /var, and /home. I had a drive fail last year (sda).After a fashion, I was able to get it working again with sda removed. Since I had two hot spares on my RAID5/LVM deal, I never replaced sda. Of course, on reboot, what was sdb became sda, sdc became sdb, etc.So, recently, the new sdc died. The hot spare took over, and I was humming along. A week later (before I had a chance to replace the spares, another died (sdb).Now, I have 3 good drives, my array has degraded, but it's been running (until I just shut it down to tr y.

I now only have one replacement drive (it will take a week or two to get the others).I went to linux rescue from the CentOS 5.2 DVD and changed sda1 to a Linux (as opposed to Linux RAID) partition. I need to change my fstab to look for /dev/sda1 as boot, but I can't even mount sda1 as /boot. What do I need to do next? If I try to reboot without the disk, I get insmod: error inserting '/lib/raid456.ko': -1 File existsAlso, my md1 and md2 fail because there are not enough discs (it says 2/4 failed). I *believe* that this is because sda, sdb, sdc, sdd, and sde WERE the drives on the raid before, and I removed sdb and sdc, but now, I do not have sde (because I only have 4 drives) and sdd is the new drive. Do I need to label these drives and try again? Suggestions? (I suspect I should have done this BEFORE failure).Do I need to rebuild the RAIDs somehow? What about LVM?

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Server :: MDADM Raid 5 Array - OS Drive Failure?

Jun 7, 2011

I have 4 WD10EARS drives running in a RAID 5 array using MDADM.Yesterday my OS Drive failed. I have replaced this and installed a fresh copy of Ubuntu 11.04 on it. then installed MDADM, and rebooted the machine, hoping that it would automatically rebuild the array.It hasnt, when i look at the array using Disk Utility, it says that the array is not running. If i try to start the array it says :Error assembling array: mdadm exited with exit code 1: mdadm: failed to RUN_ARRAY /dev/md0: Input/output error

mdadm: Not enough devices to start the array.I have tried MDADM --assemble --scan and it gives this output:mdadm: /dev/md0 assembled from 2 drives - not enough to start the array.I know that there are 4 drives present as they are all showing, but it is only using 2 of them.I also ran MDADM -- detail /dev.md0 which gave:

root@warren-P5K-E:~# mdadm --detail /dev/md0
/dev/md0:
Version : 0.90

[code]...

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Server :: How Long Does Hardware Raid Card (raid 1) Take To Mirror 1 TB Drive (500gb Used)

Mar 22, 2011

How 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?

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CentOS 5 :: Dual Boot With Windows RAID And Drive Combination

Jan 8, 2011

I have a pre-existing setup with Windows XP Professional and CentOS5.5 on a dual boot setup with the Linux drive setup as the primary drive hosting the grub menu.

I am replacing these machines with new updated ones and they have windows setup on a RAID0. I think it would be easiest to follow my previous setup and move the RAID to secondary SATA ports and put the linux drive on the primary SATA port, or should I just change the boot order in the BIOS to have the secondary linux drive boot first?

can I move a RAID setup to secondary controller ports without breaking the RAID?

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Server :: Convert Single Drive Ubuntu Server To RAID 0

May 28, 2010

I am running single drive Ubuntu server 9.10 with a lot of software. Now I want to add one more disk (same size and type) and to convert this to RAID 0 without need of reinsallation. Is it possible and if yes how? I didn't find nothing for RAID 0. It sounds simple, but probably is not.

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Ubuntu Installation :: Dual Boot - Win 7 And 10.10 On Raid 0 - No Raid Detect

Nov 26, 2010

I 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.

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Server :: Software Raid Mdadm Can't Bring Up Drive

Jul 27, 2011

I have a raid 5 array that appears to have died. I was just routinely looking at /var/log/messages and noticed that a drive in the array was complaining (via SMARTD).

This is the /home directory, and so is backed up, so it's not critical, but I'd like to get some things that changed after the last backup (the week before I noticed the failure)

Let me start by outlining what I know :

It's a 2TB array spread over three disks (mdadm software RAID5), here are the drives:

MDADM gives the drives :

Now, the array *WAS* up ok, but I umounted it. (in which /dev/md0 was mounted to /home) Yes,I know - I didn't want any changes being made to the array by anything - at least that was my thinking at the time. In hindsight... I would have killed any processes, locked out the server, backed up again and 'then' unmounted it.

But we are where we are, I'm sure there'll be time for recriminations later.

When I try to remount it, I get :

Ok - looks like it's lost the type - it's normally worked, maybe we'll give it a little hint - it's ext3 with a journal.

When I tell it it's an ext3, I get :

Now, before I go charging off specifying superblocks further along the disk, but I can't remember where they're stored.

Neither can I recall what the blocksize I originally created the array as (I have a feeling I specifed 4K, but I could be wrong).

debugfs is only telling me :

I should also point out that this server is hosted, so it's 150 miles away from me at the moment, so I can't just whip them out and dd a copy.

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Server :: How To Access Auto Raid Hard Drive Component?

Dec 22, 2010

i have harddrive on which raid 5 is configure and no file system is configured.so i want to access the data on auto raid component harddisk.could any one telme how to access auto raid component hard drive.when im connectingto my laptop its not opening.when i check in disk analyzer its showing auto raid component harddrive.please helpme to access data inside the raid drive.

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CentOS 5 :: Remove The Raid 1 Arrays On Server And Use Standalone Drive?

Mar 30, 2010

i want to remove the raid 1 arrays on our server centos and use standalone drive

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Ubuntu Installation :: Dual Boot SSD Non Raid - 1 Terabyte Raid 1 Storage "No Block Device Found"?

Sep 15, 2010

It'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.

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CentOS 5 Hardware :: Fake Raid Versus Hardware Raid After A Hardware Failure?

Oct 12, 2010

Recently 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.

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Ubuntu :: MDADM Raid 5 - OS Failure?

Jun 5, 2011

I have 4 WD10EARS drives running in a RAID 5 array using MDADM.Yesterday my OS Drive failed. I have replaced this and installed a fresh copy of Ubuntu 11.04 on it.I then installed MDADM, and rebooted the machine, hoping that it would automatically rebuild the array.It hasnt, when i look at the array using Disk Utility, it says that the array is not running. If i try to start the array it says : Error assembling array: mdadm exited with exit code 1: mdadm: failed to RUN_ARRAY /dev/md0: Input/output errormdadm: Notenough devices to start the array.I have tried MDADM --assemble --scan and it gives this output:mdadm: /dev/md0 assembled from 2 drives - not enough to start the array.I know that there are 4 drives present as they are all showing, but it is only using 2 of them.I also ran MDADM -- detail /dev.md0 which gave:

root@warren-P5K-E:~# mdadm --detail /dev/md0
/dev/md0:
Version : 0.90

[code]....

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CentOS 5 :: Software RAID 1 HDD Failure

Nov 6, 2009

1. One of my hdds failed (sda) in software raid 1. I rma'd the hdd to western digital and got another one. Now do I have to format it before putting it in my centos server? If yes, how do I format?

2. Also since sda drive failed, I gotta mark sda as failed in raid. Then remove the sda hdd, and pop in the new hdd for sda? Or do I switch sdb to sda and put the new hdd in sdb's place?

3. After that add it to raid correct, then once raid rebuilds I have to do grub? Can grub be done via ssh only? or do I need to be at the datacenter or get kvm?

4. Last question, I've got a supermicro hotswap hdd case, so do I need to shutdown server while I replace the hdd's? I just want to be sure I do this correctly.

The following is the guide that I will be using, please look at it and let me know if that is the correct procedure: [URL]. Another thing, when the hdd (sda) failed I put it back into raid, but the hdd has bad sectors that is why m replacing it.

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CentOS 5 :: Disk Failure And Software Raid 1?

Jun 9, 2011

Following scenario: My server in some data center on a different continent with two disks and software raid 1.

One day I see that a disk failed (for example with /proc/mdstat). Of course I should replace the failed disk asap. Now that I think about it, I am not sure how. What should my email to the data center support guy mention to make sure that guy doesn't replace the wrong disk?

With hardware RAID it is very easy, because the controller usually has some kind of red LED indicator. But what about software raid?

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Ubuntu :: Mdadm Raid 5 Single Disk Failure

Feb 2, 2010

Recently, one the SMART utility said that one of the drives had failed and another drive was about to fail. I downed the box and hooked them up to my windows machine to run sea tools on them (They are all seagate drives). Sea Tools said that the drives were fine, while ubuntu said they were failing/dead. Yesterday I decided to try to fix one of the drives in the raid. I turned the server off, took the failed drive out, and restarted. Of course the raid didn't work because only 2 of the 3 drives were there, however it had been working w/ only 2 of the 3 drives for a couple months now (I'm a lazy college student). I turned it back off and back on with the drive there just to see if I could get the raid up again, but I havn't been able to get it to go. So far I've tried:

Code:

mdadm --assemble /dev/md0 /dev/sd[b,c,d]
mdadm: no recogniseable superblock on /dev/sdb
mdadm: /dev/sdb has no superblock - assembly aborted

[code]....

I'm looking for a way to trick the raid into working with just 2 drives until I can warranty the seagate and buy an external 1.5 TB drive to use as another backup. how to remove the bad drive from the array and replace it with a fresh drive, without data loss.

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Ubuntu :: MDADM RAID 5 Disk Failure And Recovery?

Jun 18, 2010

I have a fileserver which is running Ubuntu Server 6.10. I had a RAID5 array consisting of the following disks:

Code:
/dev/sda1
/dev/sdb1
/dev/sdd1
/dev/md0 -

the raid drive for the above three disks. The sda1 disk has failed and the array is running on 2 of 3 disks

/dev/sdc (OS disk)
/dev/sde (new 2tb disk - unused)
/dev/sdf (new 2tb disk - unused)

My plan was to rebuild the array using the two new disks as RAID1. Would the best way to do this be to create a new RAID1 disk on /dev/md1 then copy all data over from /dev/md0? Also - this may sound stupid but since all 3 drives in md0 are identical i'm not sure physically which disk is bad. I tried disconnecting each disk one-by-one then rebooting but the system doesn't appear to want to boot without the bad drive connected. I've already failed the disk in the array with mdadm but i'm unsure of how to remove it properly.

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Ubuntu Servers :: RAID 5 Failure While Increasing Size?

Sep 6, 2010

Based on the reading I've done over the past 48 hours I think I'm in serious trouble here with my RAID 5 array. I got another 1 TB drive and added to my other 3 to increase my space to 3 TB...no problem.

While the array was resyncing...it got to about 40%, I had a power failure. So I'm pretty sure it failed while it was growing the array...not the partition. Next time I booted mdadm didn't even detect the array. I fiddled around trying to get mdadm to recognize my array, but no luck.

I finally got desperate enough to just create the array again...I knew the settings of my and had seen some people have success with this method. When creating it, it asked me if I was sure because the disks appeared to belong to an array already, but I said yes. The problem is when I created it, it created a clean array and this is what I'm left with.

Code:
/dev/md0:
Version : 00.90
Creation Time : Sun Sep 5 20:01:08 2010
Raid Level : raid5
Array Size : 2930279808 (2794.53 GiB 3000.61 GB)

[Code]....

I tried looking for backup superblock locations using e2fsck and every other tool I could find, but nothing worked. I tried testdisk which says it found my partition on /dev/md0, so I let it create the partition. Now I have a /dev/md0p1, which won't let me mount it either. What's interesting is gparted reports /dev/md0p1 as the old partition size (1.82 TB)...the data has to still be there, right?

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Ubuntu :: Install Failure - Nvidia Raid And No Boot?

Sep 13, 2010

on my pc, that was running WinXP, I thought of installing Ubuntu. (I did install linux already a few times in the past years and use it on another couple of pcs) But something went wrong. This machine has 2 x 200MB maxtor drives, in raid 0 configuration, supported by the motherboard Nvidia chipset, and working well in Windows. When ran the live Ubuntu 10.04 cd, gparted was not able to access the drives in raid configuration, until I installed the mdadm and kpartx packages then the existing data became visible. So after that initial moment I thought all was ok and proceeded to install Lucid on the machine, dual booting with Windows. I did partition manually so that in my 400GB raid drive there is an 80GB NTFS partition with WinXP, a 90GB extended partition for Linux Ext4 and Swap and then a last NTFS 200GB partition for data. All went well, but now on restarting the computer nothing happens, nothing loads, Grub is not showing, and it looks like I cannot launch Linux nor Windows. All the data from WinXP and the Ubuntu installation seems to be on the disks but the pc is just not booting. I suppose the problem is with the raid configuration that is not handled properly during the installation, but is there anything that I can do now, apart from reinstalling Windows Xp or installing Ubuntu in a non raid configuration?

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Ubuntu :: Rebuild Md RAID Array After OS Disk Failure?

Dec 19, 2010

I went to setup my linux box and found that the OS drive had finally died. It was an extremely old WD raptor drive in a hot box full of drives so it was really only a matter of time before it just quit on me. Normally this wouldn't be such a big deal however I had just recently constructed an md RAID5 array of 3 1TB disks to act as an NFS mount for basically all of my important files. Maybe 2-3 weeks before the failure I had finished moving all of my most important stuff onto that array. Now I know that the array is intact. All the required data is sitting on those disks. Since only the OS level disk failed on me I should be able to get a new disk in there, reinstall ubuntu and then rebuild that array. how exactly do I go about doing that with mdadm? Do I create the array from the /dev character devices like when I initially built the array?

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General :: RAID Disk Failure Interrupt Notification?

Apr 4, 2010

I have installed a Fedora Core 12 Linux system onto a RAID 1 file system. I now need a way of getting an notification if the disk fails. Is there an SNMP MIB that covers Intel RAID? I have done the searching but still the answer alludes me.

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Slackware :: Automating Raid Failure Detection On Slack 13.1?

May 1, 2011

I just setup sendmail on my server to send emails and it works, now I would like to be able to get an email from mdadm if sometjhing was going wrong. I imagine most raid users have this feature setup.

Right now, I have 7 raid arrays and mdadm starts at boot time. Until now, I used Mr. Goblin's script (http://connie.slackware.com/~mrgoblin/files/rc.mdadm) (thanks Mr Goblin!) to monitor my arrays.

The script is started at boot time from rc.local. I created a small script in /usr/bin that send the following command to rc.mdadm giving me the status of the arrays:

Code:
/etc/rc.d/rc.mdadm status

and it works fine, but this requires me probing the arrays manually by calling the script from the command line. I would like to automate probing every 10 minutes or whatever and if a fault has been detected, I get an email.

[Code]...

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Ubuntu Installation :: Alternate 64bit Iso Install Raid Failure

Aug 27, 2010

UPDATE: decided to reinstall and run the partitioner to get rid of the raid. Not worth dealing with this since seems to be lower level as /dev/mapper was not listing any devices. Error 15 at grub points to legacy grub. So avoiding the problem by getting rid of raid for now. So ignore this post. Found a nice grub2 explanation on the wiki but didn't help this situation since probably isn't a grub problem. Probably is a installer failure to map devices properly when it only used what was already available and didn't create them during the install. I don't know, just guessing. Had OpenSuSE 10.3 64bit installed with software raid mirrored swap, boot, root. Used the alternate 64bit Ubuntu iso for installation. Since partitioning was already correctly setup and the raid devices /dev/md0,1,2 were recognized by the installer, I chose to format the partitions with ext3 and accept the configuration:

/dev/md0 = swap = /dev/sda1, /dev/sdb1 = 2Gb
/dev/md1 = boot = /dev/sda2, /dev/sdb2 = 256Mb
/dev/md2 = root = /dev/sda3, /dev/sda3 = 20Gb

Installation process failed at the point of installing grub. It had attempted to install the bootloader on /dev/sda2 and /dev/sdb2. I moved on since it would not let me fiddle with the settings and I got the machine rebooted with the rescue option on the iso used for installing. Now, I can see the root partition is populated with files as expected. dpkg will list that linux-image-generic, headers, and linux-generic are installed with other supporting kernel packages. grub-pc is installed as well. However, the /boot partition or /dev/md1 was empty initially after the reboot. What is the procedure to get grub to install the bootloader on /dev/sda2 and /dev/sdb2, which represent /dev/md1 or /boot?

Running apt-get update and apt-get upgrade installed a newer kernel and this populated the /boot partition. Running update-grub results in a "/usr/sbin/grub-probe: error: no mapping exists for 'md2'". grub-install /dev/md2 or grub-install /dev/sda2 gives the same error as well. Both commands indicate that "Autodetection of a filesystem module failed, Please specify the module with the option '--modules' explicitly". What is the right modules that need to be loaded for a raid partition in initrd? Should I be telling grub to use the a raid module?

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Fedora Servers :: Recovering From Software RAID Failure (controller Died)

Jan 3, 2009

I had a RAID1 'device' build on two physical partitions on two drives. One of the disk controllers died and software RAID did the job - now I am working on the degraded array.

Now I want to put the old disk (sdb) back, and I am not sure what will happen. Both disks have 'raid auto' partitions. And sdb file structure from before of the failure. The raid code will find inconsistency between both partitions. What will it decide? Will it start coping from the currently running system (sda) all the data to the old one (sdb) at the boot time, as I wish?

I don't want to it to write from the old one to the new one, as some months passed and lots of changes happened to the data.

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Ubuntu :: External Hard Drive "breaking" Software Raid 10.10 Server

Mar 23, 2011

Ubuntu does not see any hardware RAIDs on this server - Intel confirms that they do not support Debian distros with this onboard SATA controller.

Tried going with CentOS and OpenSUSE ... CentOS would install, but wouldn't boot. OpenSUSE would work but after multiple installs, Samba wouldn't start.

That left us with Ubuntu Server.

While Ubuntu Server can't see a hardware raid, it can see each of the hard drives individually. From there, I created a software RAID during Ubuntu setup and was able to install.

Initially had some issues with mdadm "losing" the hot-spare ... was able to fix that by adding sd[abc][12] to /etc/mdadm/mdadm.conf ...

It worked fine until I plugged a WD MyBook usb hard drive into the machine.

I lose the hot spare (configured on /dev/sdc) because it mounts the USB hard drive there.

I need to be able to make it mount the USB hard drive AFTER mdadm configures /dev/sdc as the 3rd Hitachi hard drive

What needs to be done to make this work?

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Hardware :: Main Drive Increase Speeds Of Network Transfers From Raid Drive?

Jan 3, 2011

my linux server is running with an old IDE hard drive getting these hdparm results:

[code]...

i have a WD Raptor drive i'm going to install and put a fresh install of linux on it. i'm just curious, will using a much faster HD as my main drive increase the speeds of my network transfers from the raid drive? do transfers only go as fast as the system drive?

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CentOS 5 Hardware :: Connect A RAID Box To The Server Via LSI 8880EM2 RAID Controller

Aug 3, 2010

I 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.

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Fedora Installation :: 14 Install Failure With Dual Boot?

Aug 21, 2011

I downloaded Fedora 15 Live and Fedora 14 Live to try to see where Linux is for music and broadcast audio on a laptop. It turns out I have to use 14. 14 and 15 both sort of work as live out of the box, although why they ship with the common Broadcom wifi driver missing and the touchpad tap disabled beats me. I also never found the magic button to close down 15. There must be one, but blow me I couldn't find it. Then I tried to follow the instructions at [URL] which mostly seemed to work. I need to keep Win 7 as this is the 32-bit test machine. I used EasyBCD v2.1 rather than the older version the guide is written for.

Booting into Win7 at first worked, then a boot into Linux stopped at a line that said something about a kernel thread helper Then Win 7 blue screened on boot, although it would boot to Safe Mode. Removed Veriface from the Lenovo laptop and it would boot Win 7. Tried setting Drive in EasyBCD to "Boot" rather than "C:" for Fedora. Now booting Fedora gave a Windows missing file message and croaked. Repairing startup with the Win 7 boot CD cured Win 7. Repeated the loop with the same failures. Re-partitioned and re-installed Fedora and just the same - a screen of text that stops. I can now boot to Windows and need help to sort out the Linux boot. How do I start to investigate the screen of text saying things like "__bad_area_nosemaphore" ?

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OpenSUSE Multimedia :: Brasero & K3B Dual DVD Burn Failure?

Jul 11, 2011

I got the following error message from brasero-session.log when trying to burn a 7.7GB ISO. My system is openSUSE 11.4, Gnome 2.32.

Checking session consistency (brasero_burn_check_session_consistency brasero-burn.c:1744)
BraseroBurnURI called brasero_job_get_action
BraseroBurnURI called brasero_job_get_action

[code]...

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Ubuntu :: Grub2 Failure After Attempting Dual Boot

May 22, 2011

Today I attempted to install Win 7 on my Ubuntu 11.04 machine so I could dual boot. The Win 7b install went smoothly, but when I tried to fix grub everything went to hell.

I initially tried to reinstall grub using this walk though [URL] However, when I start the computer I get:

"GNU GRUB version 1.99~rc1-13ubuntu3

Minimal BASH-like line editing is supported....

grub> "

I tried to use the technique in [URL] to solve the problems, but when I try to run chroot I get a bin/bash error (I don't have the full error handy, but can rerun the steps if needed). The only potential cause that I can find doesn't apply to me since I am using a 11.04 64 bit live usb on a 11.04 64 bit install.

I've run [URL] and included the results below.

[Code]....

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Ubuntu :: Dual Boot Grub Menu Failure?

May 24, 2010

I'm running a dual-boot with linux mint and Windows. I have an E-machines desktop with :760 GB Hard Drive6GB RAMNVidia GeForce Graphics card 6150se IntegratedAMD Athalon II X2 235e dual-core processorMy problem is getting my grub to boot into Linux Mint, and the problem may lie with my graphics card. Whenever I install the linux mint for the first time, I am prompted to activate my proprietary NVidia graphics driver, which I do. Then I am asked to reboot. Upon reboot, the system gets to the grub menu, accepts my selection to boot linux mint, then the "progress dots" appear on the screen. After about 8 seconds, the screen switches into command prompt mode. I never get to the graphical sign-on screen. All I get is the console sign-on prompts.

From there my only option seems to be to reboot. (sudu reboot). After which, of course, I am forced to go into Windows vs. Linux to avoid the problem. Once Windows has loaded up, I do a restart and go back into Linux Mint . Finally, I get to the Linux sign-on graphical screen.To summarize, i cannot restart linux mint without getting stuck staring at a console screen. I can get back into linux mint if i use the command 'sudo reboot', and, from the grub menu, choosing to go into Windows. From Windows, I then do a restart and end up back at the grub screen again, but this time when I select linux mint, things work and I am given the sign-on gui.If I choose to not install the graphics driver (and put up with the annoying reminder to activate one), the system dual boots without a problem.

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