I install 1 of the server build hardware raid 10 with hotspare. now the problem i cant monitor the raid. since it shows as single disk.
So if i need to see any crash disk/failure disk i cant monitor or get logs. can someone advise where to get and how to install the hp smart start for linux or any alternate way available in linux to perform such tasks.
I'm trying to setup RAID 1 on a CentOS 5 server for a zimbra email server.I get a partion schema error. Can I do this?The server is a HP Proliant ML150 G3 server with two 80GB HDD.
View 1 Replies View RelatedI 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.
View 4 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 a problem configuring a RAID server under Ubuntu 9.10 (kernel 2.6.31.17) with mdadm (v2.6.7.1). First I had some hardware issues that finally got solved by using another motherboard. Now I am dealing with the software part.In order to ease things, I am trying to configure a RAID 5 with three partitions in one disk. I have two HD's, one IDE where the OS lies (recognized as sda), and another where I intend to build the RAID (recognized as sdb). In this second drive I have made three partitions (sdb1, sdb2 & sdb3) of the same size.I've already re-installed Ubuntu 9.10 a couple of times, zeroed the superblocks of the partitions, repartitioned the disks with different partition sizes (I am using 5 GB partitions to save time). I've gone through this process several times, and I really don't know how to move forward now. If RAID is about trust and reliability, this is exactly what I'm not able to get.
View 5 Replies View RelatedI have a new home server I built this weekend with 4 x 320 GB Seagate Barracuda SATA drives. I am going to load my O.S. this week however I don't have a RAID controller so I would like to utilize 'Software RAID' via 'mdadm' package. My question is since this is a general home server with no specific function rather than hold my data reliabily and resonably fast, how do you guys recommend I configure my partitions for RAID? What level would be best with my 4 drive configuration? RAID5 or RAID10? Should I use a 3 drive RAID and use the 4th as a spare? Please let me know what you recommend as I don't have a lot of expertise with what is not practical or useless when it comes to Mdadm RAID.
View 6 Replies View RelatedI 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 RelatedHere is my system: I have dell poweredge 1950 PERC 6 with 300 GB raid system. It has two disks of each 300GB RAID mirrored system. I have few applications and data that reached around 280GB. As you know, poweredge 1950 we can have only two disk.
They are not mission critical. Hence, I wanted to remove the raid system and use as a non-raid system. By doing it, The applications and data can grow upto 600GB. I do not want to loose the data and setup. I am not so clear about RAID system and its conversion.
I am trying to partition my server before installing CentOS and cPanel.I have hardware RAID 1/10 On RAID 1 I would have
/
/boot
On RAID 10 I would have
/tmp
/usr
/var
/var/log
2 GB swap
/home
Is it correct partionining setup?What should I have on RAID 10 ?
I just built a home computer with 3TB hard drives I wanted to set up in a RAID 5 and load Ubuntu server onto it. The first thing I did was set up the drives in a RAID 5 using just the motherboard chipset software to do it, so a 'hardware' RAID basically. I installed Windows first to see if all the hardware works ok (that seemed the easiest way to verify it) and with the exception of the ethernet card (which needed a driver disk to work) everything was plug n' play and worked wonderfully. After that I booted the Windows install disk again to delete the partitions, hoping Ubuntu 10.10 server would create its own.
The problem I'm having is no matter what I've tried (deleting and recreating the RAID 5 setup, departitioning the drives), whenever I try to install Ubuntu it won't recognize the RAID as a valid disk. Ironically, it did at first, because I installed windows to verify the hardware. The ethernet card wasn't working automatically in the Ubuntu setup, (although it found the unformatted RAID drive), so I installed windows and figured out it was just the drivers that needed to be installed.
So now when I try to install Ubuntu, it finds the ethernet card perfectly and connects to the internet during the installation...but that actually stinks because it's telling me it's still accessing the drivers from the drives that I thought I formatted. Once it gets to the storage part of the installation afterwards, it can't find the RAID drive anymore. I tells me to choose a disk from the list, but the list is blank. So I can't install on it.
If I remove the RAID entirely and just keep the drives as 3 separate IDE drives, it finds every drive perfectly and can install to either one I choose. But I don't want this, I definitely need them RAIDed.
I have built a couple RAID's, but I'm uncertain of how I should format the partitions of the raid. Should I format partitions on each disk, and then add them to a raid, or should I create a raid on unformated disks and then format the raid as a partition? Does it matter, and are there performance/reliability issues? I'm creating a RAID-5 using 3 SATA disks on RHEL for user data area.
View 5 Replies View RelatedI have centos 5.3. I have two h/d 1st h/d used as primary and backup of reqd things of first h/d is copied into 2nd h/d. I want to configure mirroring in this server how to configure this, raid 1 is ok or not.
View 1 Replies View RelatedI have ClearOS (CentOS) installed. I have 2 x 2TB SATA HDDs (hda & hdc). At installation time, I configured a RAID 1 (and LVM) between the two HDDs. After a power problem happened, the two HDD were re-syncing and I checked it using: watch cat /proc/mdstat The speed didn't exceed 2100 KB/s I tried the following with no change:
echo 50000 > /proc/sys/dev/raid/speed_limit_min
Currently I have 3 hard drives
2pcs 10gb almost the same
1pc 20gb
I have a layout of
(10.2gb)
/dev/hda1 boot 104391 83 Linux
/dev/hda2 9912105 8e Linux LVM
(10.1gb)
/dev/hdb1 9873328+ 8e Linux LVM
(20.4gb)
(unpartitioned)
The two 10g is setup as lvm and I want to make raid1 using the 20gb hdd. Almost all I see is raid1 first in the internet.
Just had my Raid 5 config on Sme server 7.4 crash due to a faulty drive, I have manage to setup a machine with ubuntu 9.04 and installed the drives in there original config (I haven't overwritten them). Ubuntu can see the raid config but for some reason I cannot mount it as it keeps asking for the filesystem which if I check says LVM2_member, anyone know how I could get it to mount?
View 1 Replies View RelatedUsing redhat linux 4 update 5 find out the raid details of a server. I have a machine which is a t remote site. i thing all the disk slots are populated but only two disks are used. I can see those two disks presented as a volume to my operating system. I would like to confirm if the other disks are there or not
View 4 Replies View RelatedI looking to setup a CentOS server with RAID 5 i was wondering what the best way to set it up and How with the ability to add more HDD to the RAID system later on if needed?
View 1 Replies View RelatedI have created a software raid 5 array which is currently sitting idle all space is unallocated. My plan was to use all 4.5 TB as a single partition for multimedia files. My problem is that I am trying to set up a file server acessible to windows systems al well as linux. Is there a file system I can use to partition this space that will geve me what I want?
View 6 Replies View RelatedI recently assembled a small pc with two 2TB harddisks to set up as a home server,and I figured I'd install Ubuntu Server 10.04 on it.As simple as that sounds I'm pretty close to restructuring the machine with a kitchen knife . The data on the server will mainly consist of backups so I'd like the disks configured in RAID 1, a hardware RAID controller was way over budget/overkill since software raid seemed perfectly sufficient for this purpose. So I downloaded the 64-bit server installer for 10.04, put it on an usb-stick (no optical drive in the machine) using the usb-creator tool.
Everything goes perfectly well up to the partition editor. I try to create the partitions I want for the RAID configuration, but I cannot switch the boot-flag to on when I select "physical volume for raid". When trying to switch it briefly shows a progress bar and it's still set to off. I got this problem in both the 8.10 and 10.04 installers (I figured I'd try configuring in a different version, but no luck). Right now I just configured the boot partition (and several others) to be on one disk and the data partition the only one configured as RAID-1, which took ages to apply (I actually thought that had crashed too when I started this topic..) but this is far from ideal since I won't be able to boot from disk if one of them fails and it might be a pain to recover the data. how do I make a "physical volume for raid" bootable in the installer?
I have acquired a dell 2850 poweredge server and installed ubuntu server onto only to find out we cant use linux for its intended use and need to uninstall remove ubuntu and it has a raid 5 array on the server.
View 1 Replies View RelatedI've been running my dedicated server on Ubuntu 10.04 for 300 days non-stop so far (touch wood). I'm planning to purchase a dedicated server to host many large sites. The specs are Sandybridge Xeon with 16 bay x 2TB storage using RAID5 (Adaptec RAID 51645).I don't have experience with RAID, but I read that ext4 can only support filesystem up to 16TB, my plan for the system is to have 32TB of storage. How can I make Ubuntu run this configuration?
Also, can Ubuntu 10.04 recognize the Adaptec card? Going through Adaptec website there is no mention of drivers for Ubuntu (although many other distros are available).
Quote:
EFI GUID Partition support works on both 32bit and 64bit platforms. You must include GPT support in kernel in order to use GPT. If you don't include GPT support in Linux kernel, after rebooting the server, the file system will no longer be mountable or the GPT table will get corrupted. By default Redhat Enterprise Linux / CentOS comes with GPT kernel support. However, *******if you are using Debian or Ubuntu Linux,******** you need to recompile the kernel. Set CONFIG_EFI_PARTITION to y to compile this feature.
Is this true? Ubuntu has no GPT support native to the server install? Never compiled a kernel. Is that of itself going to be a mind bender? How much doo doo am I going to get into if I haven't done it a few times? Trust me when I tell you its no thrill formatting and reformatting a 8tb raid drive or the individual disks if it screws up. Been on that ride way too long already. Need things to go smoothly. This is not a play toy server, but will be used in a business.
I am using smartd for monitoring disk's status and i am using smartmontools-5.39.1.tar.gz package for compilation. I am able to compile and run it on HP servers(redhat). Now,i need to execute it for IBM RAID SERVERS too on which compilation is done but i need to configure smartd.conf for them so as to monitor all existing disks. (only DEVICESCAN works in conf file). Rest devices to monitor(eg. ata, sda devices) don't work at all. it is possible in IBM raid servers and if yes, then what configurations should i use.
View 1 Replies View RelatedI have a remote server so the only access I have is through SSH, the datacenter where the server is located(leaseweb) say they cannot setup software raid configurations but also say it is possible to do myself.
Four disks are attached to the server with only one partitioned, now how can I setup a software raid configuration with these disks, am I correct in thinking this can only be done with the use of a kickstart script?
I have a system that has the following partitions:
Now SDC is a new drive I added. I would like to pool that new drive with the raided drives to give myself more space on my existing system (and structure). Is this possible since my raid already has data on it?
I am rebuilding two microsystems servers and I need some advice to make my dreams come true.I want to setup the servers in a RAID configuration and want to install a GUI Linux application to manage a file server, manage a subnet, and host a Moodle on my subnet.I am planning to use Asus eee netbooks running Linux as my client computers. I basically need to be able to get my kids on the web and be able to have them use some open source office suite tools. No major crunching. I'll have two Macs for that.
View 3 Replies View RelatedI'm experimenting on a new 5.7TB raid we got for one of our servers before it goes into production. I'm carving the space up into Volume Groups and Logical Volumes. Below is some sample output:
[root@server newhome]# vgdisplay
--- Volume group ---
VG Name extraid_sdd1
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 2
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 1
Open LV 1
Max PV 0
Cur PV 1
Act PV 1
VG Size 1.82 TB
PE Size 4.00 MB
Total PE 476804
Alloc PE / Size 476804 / 1.82 TB
Free PE / Size 0 / 0
VG UUID LJPJVE-fekS-crS8-uugk-l13z-0NG0-FWv3M3
--- Volume group --
VG Name extraid_sdb1
System ID
Format lvm2
Metadata Areas 2
Metadata Sequence No 4
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 1
Open LV 1
Max PV 0
Cur PV 2
Act PV 2
VG Size 3.64 TB
PE Size 4.00 MB
Total PE 953608
Alloc PE / Size 953608 / 3.64 TB
Free PE / Size 0 / 0
VG UUID kzlLN4-PyrX-LYUS-h1Tc-1S9F-jVV0-XU5tcK
Because I created this, I know that the second 3.64tb Volume Group, extraid_sdb1, is composed of two physical volumes, /dev/sdb1 and /dev/sdc1, each one 1.82TB in size. My question is, if I hadn't made this and had to work backward, how could I discover that info? I can see that the second VG is composed of 2 PVs by the "Cur PV" line. But if I didn't know that they are my /dev/sdb1 and /dev/sdc1, how could I break that out, as well as their sizes? If it matters, this system is running FC6.
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?