I have a new DL180 G6 server with 4 x 500Gb HDD's. I have configured this into a 1+0 raid array and the configuration utility reports 1Tb space as expected. When I boot off of the RHEL 5 DVD the 4 HDD's are there, not my array?
View 8 RepliesWe have configured software based RAID5 with LVM on our RHEL5 servers. Please let us know if its good to configure software RAID on live environment servers. What can be the disadvantages of software RAID against hardware RAID.
View 2 Replies View RelatedTrying to install RHEL5-AS 64bit onto HP DL320 G6, with RAID being a mirrored array on the Smart Array B110i SATA controller. The RAID is configured in the BIOS and seems fine.
When I install RedHat, I have to use 'linux dd' to use the HP provided driver (http://h20000.www2.hp.com/bizsupport...5&mode=4&idx=0) and that works fine during the installer, the GUI during the install sees the RAID just fine, it sees one volume, calling it the HP Volume. However, when the system boots after the install, the RAID is gone, and it's now seeing two drives, /sda and /sdb:
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I'm installing Centos 5.5 on a HP ProLiant DL180 Server with ~8 TB of hard disk (4 disks that have been pre-RAIDED), from an installation DVD.
Normally when I get to the partitions screen, I would select "remove all partitions etc".
But this gives me an error message "Your boot partition is on a disk using the GPT partition scheme but this machine cannot boot using GPT. This can happen if there is not enough space on your drives for the installation."
Pressed OK, tried the other three partition options but they led to the same outcome.
Tried Advanced storage configuration: Showed that there was one hard drive (c0d0) with ~ 8 TB of space.
I figured I should create a root sector, set one up with 100 MB of space, ext3, set the mount point as /.
Created a software raid of the remaining space.
Trying to go "next" gave me a similar error about GPT partition scheme. Trying various other configurations all gave similar errors about the GPT scheme.
What do I need to do? Some earlier hard format of the disk or something?
installing Ubuntu 10.04 on a HP Proliant DL180 G6, especially via the LO100 virtual KVM? I can boot almost any linux distro with it, but unfortunately whenever I boot the Ubuntu server cd the screen gets garbled. I did some searching on the net, and found some references to older versions of Ubuntu where one had to add vga=771 to the boot options, but this still doesn't work with 10.04. I tried several vga modes, all to no avail (with vga=normal the screen gets garbled, with anything else the screen just stays black). Anyone got any idea on how to fix this?
View 1 Replies View RelatedHow 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 RelatedI 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.
I have 2 ethernet cards but when I look at the Network configuration in "Hardware Tab" I have another acx wireless network. How to delete that because In my system Idon't have wireless card..probably installed before but want delete it now.
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then windows can ping server and resolve ip address and browsing Internet but can't ping [URL]... result is Request time out. ICMP already enabled in iptables.
I 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 RelatedI 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 RelatedI'm developing simple transaction switch using java socket programming and running operating system RHEL5.4 . Now it is completely done and working fine. So I have written the simple shell script to run it on background.
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how can we achive more than 8TB size for one LUN.?I am getting following error..
[root@storage ~]# mke2fs -j /dev/VG01/data
mke2fs 1.39 (29-May-2006)
mke2fs: Filesystem too large. No more than 2**31-1 blocks
(8TB using a blocksize of 4k) are currently supported.
I want to implement CBQ in my RHEL5 server so that i can manage my BW.
View 4 Replies View RelatedCould 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:
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root@127.0.0.1:/etc# mdadm --examine /dev/sdb2
/dev/sdb2:
Magic : a92b4efc
Version : 00.90.00
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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.
I have rhel5 running ok and windows7 running ok, and currently access both via grub (both os are on separate disks) I want to be able to switch between both without rebooting. xen is installed and working but I cannot configure windows to run as a guest as xen wants an iso or img file.
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View 1 Replies View RelatedI wonder if someone can shade alight on this problem,I have active subscription for rhel4 ES and trying to do a fresh install of rhel5,I was able to download rhel5.3 DVD image from redhat site,burnt it to a DVD but is not booting,i have so far tried on 2 different DVDs but both have failed. I have even downloaded and burnt 1 CD ISO image burnt it still failed.BIOS level is set to cd device first so no problem there,it works!
View 5 Replies View RelatedI'm trying to get RHEL5.3 booting on an IBM Blade off a SAN disk, but it refuses.Our storage is presented on LUN 1 as due to the IBM XIV SAN, we cannot use LUN 0 when presenting volumes. We believe that when the installer tries to configure the boot LUN, it expects to see it on LUN 0 but we can't use that. This leads to a problem where after installed Red Hat, it asks me to remove the CD and reboot, but doesn't load anything other than a cursor blinking at me on the monitor.I currently can't change the LUN ID on the SAN, so I've been trying to amend things to get it to work with no joy.
View 3 Replies View Relatedwhat is the process of updating rhel5.1 to rhel6
is there anything which need to done before creating yum repositry and simplly running yum update ?
I am trying to install RHEL5.5 server on Dell Optiplex 360. When its reached at "checking dependencies in packages selected for Installation" its hang. What should I do, I checked cables hardware etc... every thing looks ok.
View 7 Replies View RelatedThe DNS server configuration for CentOS and RHEL5 and the entries for the clients in its configuration files...
View 8 Replies View RelatedI am studying RHEL myself, not clear with following topics How to configure DNS slave server in RHEL 5 Whether named.rfc1912.zones file entry can be included in named.conf itslef,if not What is following entry means inside named.conf file
zone "." in{
type hint;
file "root.servers";
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I want to configure a PXE Install Server with RHEL5u3 64bit.
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View 3 Replies View RelatedI am a new, working on RHEL5. I am a bit confused on file permissions. I want to know how the setuid, setgid and sticky bit works on linux. And what are the advantages of using these bits? Can anyone explain me the main concepts of using these permissions?
View 4 Replies View RelatedI have a RHEL 5 system running vsftpd. If I do a put to the box, files larger than 1 GB fail around the 1 GB point. Smaller files don't have a problem. If I do a get from the box there is no problem. Both the FTP server and client are plugged into a Netgear switch. I'm trying to create an FTP server and web server so my friends and I can upload our vacation pictures. Ultimately I want my friends to be able to access my server. Right now I'm just trying to make it work between my two machines.
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