Raid1 Partition
May 26, 2008
If this is not in the right forum for this... I'm sorry didnt knew where else it may go.
I have to build a new server with RAID 1 and WHM/Cpanel installed (in fact i dont have to, but i need to learn ASAP and my boss gave me an old server for practice).
I've seen the installation guide of cpanel but the sizes of the partitions apply to a disk of 80 GB (i think so) so is there any way to calculate the size of the partitions, regardless of disk size? cuz mine are of 250 gb each.
I'm trying to install it on centos 5 on text mode, so far i have been able to successfully install the system (with partitions of any size... since is a test doesnt matter) with RAID 1.
After that i ran cat /proc/mdstat and in some partitions shows me this
Rsync=Delayed
I've read in some places that this is not a big issue... but in other places says it is... maybe i did something wrong
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Mar 16, 2008
I have a disk in raid, but it seems raid is not working correctly. I took it out, and plug into another server without raid. However, fdisk shows error
Quote:
#fdisk /dev/sdb
device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel. Changes will remain in memory only,
until you decide to write them. After that, of course, the previous
content won't be recoverable.
The number of cylinders for this disk is set to 20023.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
(e.g., DOS FDISK, OS/2 FDISK)
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
Command (m for help):
Should I correct the partition table now, or should I put it in another raid for checking?
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Jul 4, 2008
i have centos 5 server i want install xen on it on my server is just one partion how may i resize this partion( without format partion/with put delete data) and then create lvm partion?
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Mar 11, 2007
I never use RAID1, but consider to use RAID1 server.
Let's say one hard drive failed and the DC replaced it with the new one, I was wondering if the system will automatically copy the data into the new drive or we should do some commands to copy the data into the new drive?
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Feb 7, 2009
I have to leave the Supermicro servers and use only Dell. I have this question.
There is a big difference in performance between these two RAID configurations?
Dell - 2 x 1TB RAID1 PERC6
Supermicro - 4 x 500GB RAID10 3ware 4 port
It is for use with webhosting.
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Nov 28, 2008
I have 2*400gb H.D.D on my server.
I have run RAID1 (software) on my server. Is it posible to disable RAID1 and use secondary 400gb H.D.D as additional H.D.D (800gb) and add another 1000gb H.D.D on my server and run RAID1 on server again? For have mirror data as RAID1 in 1000gb H.D.D
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Jul 30, 2008
What do you feel is better for a typical shared/reseller hosting server?
RAID 1 or RAID 5 (with three drives)?
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Aug 7, 2007
I would like to configure RAID 1 setup. Do I need extra hardware or if I have 2 hard drives can I set it up?
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Oct 1, 2007
I plan to install one server with RAID with that run on a dedicated card which support FreeBSD. As i have not much experience in this,
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May 30, 2008
Which to choose? RAID0, RAID1 or RAID5?
how can explain what is the best one and why?
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Dec 4, 2008
How can setup software raid1 on centos 5?
Can you provide any refrence?
I see [url]but i dont know is this need to /boot partition or no? and if need to this, is it must set for raid1 too?
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Jun 28, 2009
How can config LVM with RAID1 in text mode centos 5.3 installation?
I need to do it for xen installation.
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Jan 29, 2007
I have configured a Xen setup on a dual xeon system with a 3ware 8506 2 ports sata controller.
Array is configured in raid1 and I am using LVM.
I get really slow accesses on the virtual machines, when I create a big ext3 system, the system is nearly freezing.
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Dec 21, 2008
I just got 2 dedicateds, and while creating software raid 1, upon initial sync up I'm getting around 7 megabytes per second (6700 kb/s) in write speed I assume.
This is a quad core, sata2 setup...
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Jul 30, 2006
Dedicated server has 2 HDD but I am not going to pay another $25/month for the hardware RAID solution (already stretched too far).
My plan is to install FreeBSD 6 and use Gmirror to establish a raid-1 "soft" mirror.
Advantages: Entire drive is mirrored including the OS. Drives can be remotely inserted or removed from the mirror set using a console command so its possible to uncouple the mirror and perform software updates on a single drive then re-establish the mirror only after the updates have proved successful.
Disadvantages: Lower I/O than hardware solution (not a problem for me) others???
I rarely see people consider software raid for a tight-budget server and I am wondering why? Could it be that other OS's dont have a solution as good as gmirror? Or is it just that crappy soft-raid in the past has left a bitter taste in admins mouths? Or perhaps admins need the extra I/O of hardware?
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Dec 19, 2008
about the hd,there are two options, the first one is four 7200rpm sata to do raid 10,
the second one is two 10000rpm sata to do raid 1, about the performance, which one will be better?
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Jul 31, 2009
we can able create lVM partition but just we have 9 GB lvm partition i cant create more than or use full disk space
Code:
Device Boot Start End Blocks Id System
/dev/sdb1 * 1 91201 732572001 8e Linux LVM
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Jun 14, 2008
I have migrated one raptor disk to a 4 raptor raid 10 disks.
I was threated to being blocked from their helpdesk because they say it is a hardware issue.
I need help on 3 things:
- Is possible to just create a new partition on the not used drive ?
- Is this a software or hardware issue ?
- Can you recommend another support in case i am banned from the actual support ?
> root@server01 [~]# fdisk -l
>
>
>
> Disk /dev/sda: 299.9 GB, 299978719232 bytes
>
> 255 heads, 63 sectors/track, 36470 cylinders
>
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
>
>
> Device Boot Start End Blocks Id System
>
> /dev/sda1 * 1 13 104391 83 Linux
>
> /dev/sda2 14 268 2048287+ 82 Linux swap / Solaris
>
> /dev/sda3 269 395 1020127+ 83 Linux
>
> /dev/sda4 396 18235 143299800 85 Linux extended
>
> /dev/sda5 396 18235 143299768+ 83 Linux
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May 15, 2009
How can i create a /tmp partition (as cpanel recomends) in my openvz vps to install cpanel?
Quote:
/tmp 1 GB (1024 MB)
/ Grow to fill disk.
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Mar 29, 2009
I have VPS Windows. I want to resize partition C 50Gb become 20Gb and then create partition D 30Gb for data , I used softwares Partition Manager 8.5 Enterprise Server Edition, Acronis Disk Director Server 10.0.2169 but I can't.
I used command line :
sfc /scannow
to check HDD on this VPS Server 2003 64b but can't too.
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Apr 22, 2009
my DC has partitioned my server really complicated and im trying to install various different control panels and im running out of space, so id like to combine all my partitions into one.
How would i do this via SSH in centos 5.2?
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Nov 25, 2008
i have problem and make all solution and the problem stay
the /usr partition is full 100%
i remove all logs in :
/usr/local/apache/logs
/usr/local/apache/domlogs
and make du -h --max-depth=1 in /usr that's the monitor :
Code:
76K ./doc
37M ./sbin
366M ./src
110M ./X11R6
14M ./php4
176K ./man
16K ./lost+found
24M ./evolution28
2.2G ./local
12K ./etc
19M ./libexec
1.2G ./share
62M ./include
181M ./bin
362M ./java
958M ./lib
1.4M ./kerberos
6.4G .
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May 14, 2008
I'm trying to install CentOS5. Although the default partition should work fine for me, but I would like to create my own partition for /var, /usr/, /tmp, /swap, etc. Can you recommend me a good partion including the size. My server has 4GB RAM and 500GB SATA2 HDD. I don't use much space of HDD.
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Mar 6, 2008
The server I got from LayeredTech has two hard drives, obviously they set up the first hard drive with Linux etc.
The second hard drive is just there, not showing any partitions in 'fdisk' when I checked, so I assume they just leave it blank in every new server for the owner to deal with however they want.
I've been looking up guides to create a new partition for the full size of the hard drive and then mount it. However, it hasn't been very successful. Everytime I created the partition in fdisk, I have to set a size, and then when I mount it, it only says that the drive is ~98MB big.
Is there a way to partition the drive to its full capacity? And then mount it somewhere on the system? Or anywhere I can go to to find out easily?
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Apr 23, 2008
I recently ordered a new dedicated machine and for some reason the guys set it up so the /home partition is a massive 250GB, and the / partition is a tiny 20GB. Since that's where all the plesk domains will be storing their files, I'd like to resize things a bit. I'm thinking of making the / partition 200GB and the rest for /home
It's a CentOS machine and the filesystems are ext3.
How can I do this resizing, and are there any caveats I should be aware of?
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Mar 28, 2008
im assembling my server now....waiting on the 90degree connectors. It is as follows:
SUPERMICRO CSE-512L-260B Black 14" Mini 1U Server Case
ASUS M2N-MX SE Plus AM2+/AM2 NVIDIA GeForce 6100 Micro ATX AMD Motherboard
AMD Athlon 64 X2 4200+ Brisbane 2.2GHz Socket AM2 65W Dual-Core Processor
Dynatron A48G 70mm 2 Ball CPU Cooler - Retail
2gb ddr2 6400 ram
Seagate 500gb 7200.11 32mb hdd
WD 37gb raptor 10k rpm
the wd drive was lying around the house so i figured id add it since i had an extra slot and figured the speed wouldnt hurt.
My question is....how should i partition the drives.? I have 500+gb of space on 2 hard drives. I plan on using centos 5.1 and am downloading the iso now.
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Jan 21, 2008
What would be an optimal security partioning scheme for a C2D server with a 160 gb HD
Usage for small web hosting company
I dont feel safe with the default setup that I have heard of with the company
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Jun 21, 2007
I've spent a while on google and the forums but couldnt find an answer to a question.
Is it possible to change the name of a partition in linux?
e.g. its currently called Disk /dev/mapper/VolGroup01-LogVol00 (/)
But i would rather name is something normal like /dev/sda1
Is this possible with out losing any data?
If so how can this be done?
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Mar 30, 2007
My PHP/MySQL web application will be put in a unix/linux environment, and the guy who is setting up the server is asking me this:
Do you have any partition requirements?
I don't know too much about hardware, how should I answer him? do you have any suggestions?
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Apr 30, 2009
I have 2 x250 gb disk on a server. What configuration would be the best for partition to run Plesk and webhosting on the server?
I want www files on 2nd disk and server is hosted at Softlayer that we can reload server from web interface.
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Oct 31, 2008
partition is recommendable for openvz
Which project of partition is recommendable for openvz in the main server?
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