I would like to setup a CentOS file server with LVM and Raid1. Having 6 x 500GB drives, 4 x 1GB Ram and a Quad Core Cpu, I am considering to configure 3 hdd as LVM then raid 1 to the remaining 3 hdd's.
View 7 RepliesEvery time I reboot my server, one of my hard drives drops out of the RAID5 array. I'm pretty sure that there's nothing wrong with the drive itself. I bought all three drives at the same time, and they are identical in make/model/capacity. While the server is running, it's smooth sailing. However, whenever I shut down or reboot, I get an email message that the array is degraded. It's always /dev/sda1 that drops out of the array. I can always rebuild the array by adding the partition back in, but it's a bit of a pain. Any suggestions on how to troubleshoot this?
View 13 Replies View RelatedI have installed RAID 1 with mdadm and it seems to work looking att /proc/mdstat..I wanted to test the system, so I removed the power cable for one of the disks. When I startup I get this message:
Primary hard drive 0 not found...And cannot start. I'm not sure if there is something in BIOS or in the RAID config? Any ideas?
Sometimes when I do anything write heavy such as transferring backup or downloading large files from the net, the machine crashes almost completely.
View 8 Replies View RelatedSomething caused my Fedora 11 system to reboot this evening, only it keeps trying to boot from a CD/DVD. I get to a prompt that says "Boot from CD/DVD" and then it appears just to wait. I can insert my Fedora 11 installation disk and boot from it in rescue mode, and then I can see my entire file system, so I don't think the hard drive has failed. The system just doesn't seem to want to boot from the HD any more. I can get to a command line using the Fedora rescue mode, but I don't know what to do once I'm there.
one additional note. Around a month and a half ago I deleted some files by mistake and wanted to try to recover them. I tried a bunch of approaches that I came across (none worked), and I do remember that one of them had instructions to unmount a portion of the filesystem to protect it from being overwritten before I could recover the files.
Unfortunately, at this point I have no real memory of exactly what I did, but the system has been working fine since then. I would have thought that I had rebooted since then, but it's possible that this is the first time I've rebooted. Could I have unmounted some part of the file system such that it would still by unmounted even when rebooting? How can I check this from the command line I get in rescue mode? (My file system gets mounted under /mnt/sysimage/)
After keeping my old (laptop) computer going for 8 years, I've finally taken the splash and ordered myself a new PC, well the compoents any way to build myself a desktop this time.
I've just got a couple of questions.
I've got a 60GB SDD and a 1TB HDD. On the SDD I was planning on partitions for Ubuntu Swap Window partition, to run a Virtulisation, not dual boot.
Performance wise, is it best to install / on the SDD and /home on the HDD or /home on the SDD as well and just move music and videos ect to the HDD.
Just to complicate things, when ordering the HDD there was an offer to get a second 1TB HDD for an extra 11, so now I have 2. I was planning to set these up as RAID 1, which I believe I can do via the alternative install.
What would be the best way to then backup / . I guess it must be possible to schedule an image of/ to be copied across to HDD is it?
I did hear that RAID was a bit iffy in ubuntu, but looking about on the net things seem to be better 9.10 → Also the boot disk isn't RAID.
Are there any RAID or SSD issues I should be aware of?
I am on Ubuntu 10.10.I installed it on a 500 gig hard drive.In the future i want to software RAID(I did it in the past using the alternate version of ubuntu from the installation process), is it possible to add the new hard drive later and RAID later or i need to reformat?I am talking about software RAID.
View 2 Replies View RelatedI have an old Linux server, but now the hard drives are reformatted. I want to use this as a test server before I do anything on our live server. Our live server is running CentOS 5 so I would like to install CentOS 5 on this server, however the mother board does not seem to recognize the CD ROM any more, and I have tried other CD ROMs - So, the .iso file I down loaded from CentOS's mirrors can't be installed that way.I have a windows machine and I was wondering if I could just dump the .iso file onto one of the reformatted hard drive and then reinstall it into the server?
View 2 Replies View Relatedjust wanted to know if you can load more than one linux operating system on one hard drive? is it just like having windows and linux? I'm using ubuntu now but I really like opensuse as well.
View 2 Replies View RelatedI installed ubuntu off of my laptop and put the Ubunto file system on a 1TB hard drive off of a drive enclosure. Now the only way I can access Windows is if the drive is still connected to the laptop. NO EXTERNAL HD No BOOT MENU when I boot up.
View 4 Replies View RelatedIn my system i have 3 250 GB Hard drives in a RAID 5 configuration. unfortunately, i cannot see this volume in "Computer", so i am unable to access any of the files on the volume. wierd thing is that when i enter disk utility, it finds the drives, and recognises them as a RAID volume. any ideas on how i can access the files on this drive
View 3 Replies View RelatedInstalled 2nd hard drive, both drives non raid. Computer recognizes it but unable to boot. Is this a grub problem?
View 9 Replies View Relatedhard drive formatting, compatibility with Macs, and Windows Etc, suggestions? GUID APM or what else? can I format a hard drive on a linux system that will be compatible witha Mac?
View 3 Replies View Relatedhow to set up a boot partition on the first hard drive separate from two RAID 5 configurations on a Supermicro server with 1-750GB hard drive for the boot partition, and 15-1TB hard drives for data. The 15 hard drives are split into two RAID 5 configurations (7 -TB drives and 8 1-TB drives). I will be installing CentOS 5.2, and the 15 Terabytes of data will store data, and the 750GB hard drive(on port 0) will only have the 100MB boot file. I am using 3ware BIOS Manager to configure the first array of 7 hard drives, and the second array of 8 hard drives (1 drive with boot information will not be included in the array).
to recap, picture this: I want to load CentOS on this server. /dev/sda1 (on the bottom left drive) needs to house the boot partition set for 100MB. The remaining 7 drives (the left half, not counting the boot drive) need to be set up as a RAID 5 array. The eight drives on the right (right half) also need to be setup as a RAID 5 array. After I configure this in BIOS, I run the CentOS setup disk in graphical mode. I get to the portion after the Language and keyboard setup where it says "Installation requires partitioning of your hard drive. By default, a partitoning layout is chosen which is reasonable for most users. You can either choose to use this or create your own. Select the drive(s) to use for this installation". The drives listed are:
"sda 5721980 MB AMCC 9650-SE-8LP DISK"
"sdb 1020 MB AMCC 9650-SE-8LP DISK"
"sdc 714218 MB AMCC 9650-SE-8LP DISK"
"sdd" 6675643 MB AMCC 9650-SE-8LP DISK"
When I choose "Remove Linux partitions on the selected drives and create default layout." or any other option, I get different errors. I notice when configuring via text mode I get better options to install. I can't install the boot drive separate from the two RAID configurations?
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.
View 2 Replies View RelatedI had a drive that kept kernel panic'ing so my data center recommended using the spare hard drive to reinstall OS on, and import the data from the old drive. (they checked the hardware, it wasn't the hardware) The new install is done, and I need to mount the old drive and get backups off it since my data center does not provide management whatsoever.
It's the same OS on both (Cent OS 5.4 32-bit) I'm an advanced user on windows, but linux gets me. I can ssh in, do basic stuff like setup IP ranges and restart services. I normally navigate the box through SFTP so I have a gui. WHM shows me my drives as such
Found Disk: hda
Found Disk: sdb
so I'm assuming SDB is my old drive and the drive I need to access. I attempted to follow instructions on
cyberciti.biz/faq/freebsd-adding-second-hard-disk-howto/
but I'm assuming FreeBSD would work differently and I wasn't totally sure what the labels of the file systems should be.
I burned the live version of OpenSUSE 11.3 (Gnome, 32bit) to a CD to test the compatibility of an HP Pavilion p6510f. Although Xubuntu 10.4 booted up fine, OpenSUSE did not. A message about RAID would appear (too briefly to read) and then the computer would reboot.I checked in the BIOS and found that the SATA drive has 3 modes: IDE, RAID and AHCI. The hard drive was set to RAID.
When I changed the hard drive mode to IDE, I was able to run the OpenSUSE live CD; but the change ruined my Windows installation. Windows doesn't boot under IDE or RAID mode. (I have reset the mode to RAID and am restoring the Windows installation.) Is there an option/argument that I can pass to the kernel so that OpenSUSE will work under RAID mode? (Since Xubuntu 10.4 was able to do it, I'm assuming OpenSUSE should be able to.)
I got a dell inspiron 1501 laptop with a 80Gb sata drive what is the best solution to add data storage space for someone that love to have multiples operating systems at hand Note: I use mostly linux so I won't need to change my laptop for many years maybe ...
View 2 Replies View RelatedI have been trying to install centos on my hp servers and when i get to partitions my hard drives the OS does not detect any harddrives. I have 4 scsi drives and i believe a intergrated smart array controller.
View 1 Replies View RelatedMy parents bought a new hard drive for a laptop that I've owned for several years. It's much larger than the current one, so I plan on splitting it up to dual boot it with Ubuntu.I have no problem with partitioning a drive (I always keep a LiveCD handy), but my question is this: how can I go about moving the existing partition to the new drive? This is a laptop, so I can't simply plug the new drive into another slot.
Also, even if I manage to move it, will Windows still work on the new drive in a larger partition? I've had this laptop for quite a while, and I've lost the recovery discs that came with it a long time ago. I also have a lot of software without CDs to reinstall them with. This makes not reinstalling Windows a high priority.
I have a problem installing of centOS 5.6 from live CD.
I cannot see any option to install centOS 5.6 from live CD to hard drive on the desktop. Can anybody provide me with the steps for this.
Image Hard drive Ubuntu Operating system 9.10 Complete back up and restore. Changing over Hard Drives need a complete back up not just save files. So the image can be restored on any hard drive that restores the computer to its original state before it was imaged.
View 14 Replies View Relatedmigrate 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 RelatedI have minor problem with upgrading a hard drive. I am running an old pentium lll with two hard drives. On the first hard drive I have two partitions of around 90GB each. On the first partition is installed winXP and on the second partition I have Suse 10.3, both booted by grub and living happily side by side. My second hard drive (which is formatted for windows is only 4GB.
My problem arises when I try to replace the 4GB with a 80Gb hard drive. When I disconnect the 4GB drive the system fails to boot up and complains with error 21.
I am trying to create a RAID data drive for my system but I am having setting it up since I am a total linux noob.
The system has 3 physical HDD-s:
1. 320 GB (has functional Ubuntu 9.10 installation) attached to a PCI SATA card
2. 2TB on motherboard
3. 2TB on PCI SATA card
I want to create a software RAID1 of disks 2 and 3. So far I have used the Palimpsest Disk Utility:
- Created a GUID Partition table on both disks (2, 3)
- Used File -> New -> Software Array, made sure both my drives were included
- Once Palimpsest listed the RAID Drive as a Software RAID Array, I told it to create Ext3 filesystem on it
Well.. at least thats what I thought I did. At this point I have been able to mount the RAID drive and put files on it. However when I look at its information in Palimpsest, I am told that the drive is not partitioned. Both RAId components /dev/sda1 and /dev/sdc1 are reported to be in Sync, but the RAID Drive's own state is 'Running, Resyncing @ 45%' (and lowly growing).
My questions are: Is this a normal setup or did I do something incorrectly? Why is the drive reporting to have no partition? And howcome I can use it if it does not have a partition? I have found the command line based configurations to be a tad too confusing to follow, so I have tried to stick to graphical tools - is this a hopeless cause in Ubuntu or is it possible to achieve what I want to do without command line? I will list some info on my disks below - perhaps this offers more insight to those of you more familiar with Linux.
Code:
mindgamer@mind-server:~$ sudo lshw -C disk
[sudo] password for mindgamer:
*-disk:0
description: ATA Disk
product: WDC WD3200BEVT-0
vendor: Western Digital
[Code]...
1- I want to encrypt my system drive
2 - I want to make my system drive a RAID 1
3 - I have two 1 T hard drives, but I would like to be able to add two more 1 T hard drives for a total of 4 1T drives in the future. How do I do that?
I am using ubuntu 10, desktop edition. I have not added the OS yet, I am building this weekend.
I am attempting to set up an IBM Intellistation Z Pro to optionally boot from many OS versions. One of these is Windows XP. Windows XP is currently installed on a RAID 1 device consisting of a pair of 1 GB WD drives. These are SATA drives. The HBA I'm using is a SYBA SATA II card that uses Silicon Image's SIL3124-2 chip. The card has a BIOS and I've set up two 60 GB mirrors for Windows. I boot XP fine from this setup and things run good.
I've downloaded the CentOS 5.2 images and am able to start the installation process. I'm baffled on where to install the OS software on the RAID device. The installation process shows the two 1GB drives as separate drives and there is no acknowledgment of the 60 GB partition I've already created on them for Windows XP. I expected to see only the one logical RAID device and 60 GB of it in use for a NTFS partition. Reluctant to proceed further, I bailed on the install and am asking for advice on how to proceed.
The big question is
1) How can I install CentOS 5.2 on the RAID drive to coexist with a Windows XP installation? My desire is to boot either from this drive.
other questions related to this are:
2) Why does the CentOS partitioning software used for the install not display the logical RAID drive set up through BIOS (I'm assuming that this means it was set up apart from any Windows drivers etc.)? Only the two physical drives are displayed and there is no mention of any partitions in use.
I've just installed CentOS 5.4 on my Thinkpad T43. Everything works fine except one thing that, when I suspend the machine, the hard disk is always shut off in a "hard way". The sound is similar to the one you would hear when shutting down the machine by keeping pressing on the power button.. this is no good.
View 3 Replies View RelatedI had a corrupted superblock in my RAID boot drive (/dev/md0), which I fixed with fsck in Recovery Mode.
However, after rebooting, the same boot-up problem (hanging for hours) persists. When I re-enter Recovery Mode to examine the boot drive, I found its superblock was corrupted again (which I fixed again using fsck).
Is there a proper reboot procedure which is gentle on the boot drive, such that it doesn't corrupt it? Or, is something else amiss?
i want to remove the raid 1 arrays on our server centos and use standalone drive
View 3 Replies View Related