Displaying 20 results from an estimated 2000 matches similar to: "adding a usb drive to an existing raid1 set"
2010 Jul 19
0
mdadm in Domain ?
Hi,
i tried to make a RAID5 Software Raid with 3 HDDs
Disk /dev/xvdb: 250.0 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0xe86f85d6
Device Boot Start End Blocks Id System
/dev/xvdb1 1 30401 244196001 fd Linux raid autodetect
Disk /dev/xvdc: 250.0 GB,
2008 Oct 05
3
Software Raid Expert Needed
Hello all,
I have 2 x 250GB sata disks (sda and sdb).
# fdisk -l /dev/sda
Disk /dev/sda: 250.0 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 14939 119997486 fd Linux raid
autodetect
/dev/sda2 14940 29878
2009 Jul 13
2
raid 1 disks upgrade
Hello all,
I have a machine with 2 SATA 250GB disks which I want to upgrade to 1TB
SATAs
This is the partition structure on both disks:
Disk /dev/sda: 250.0 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 25 200781 fd
2007 Nov 29
1
Sharing Partitions between Linux and Windows
Hi All
I've just shifteed over to linux,form Windows.I 'm having 5 partations
for use by my windows XP Professional and another one by linux.The
partation table is as shown :
------------------------------------------------------------------------------------------------------------------------------------------
[root at localhost6 ~]# fdisk -l
Disk /dev/hdc: 250.0 GB, 250059350016
2006 Nov 01
1
e2fsck: Bad magic number in super-block
I posted this to the Fedora-list, but thought I might get some
additional information here as well.
I have a HD that refuses to mount with a 'bad magic number in
super-block'. I'm running FedoraCore 6 x86_64.
[root at moe ~]# fdisk -l /dev/hdc
Disk /dev/hdc: 250.0 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
2005 May 17
1
raidtab on centos 4
Hi There,
I re-installed Centos 4 on a box previously running x86 Solaris 10.
After a reboot a got a BAD PBR SIG so I used rescue mode and grub to
install a boot loader on each of my software-raided disks. Which works
fine and allows me to boot ok.
My question is, what happened to /etc/raidtab the machine boots ok and
lists all the raid-1 devices I set up in the install (including the
2007 Dec 09
1
Formating and Mounting Partitions giving problems
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<body bgcolor="#ffffff" text="#000000">
<small>Hi <br>
After the installation of </small><small>Windows and L</small><small>inux
on my desktop.I partitioned the disk space under Windows and kept the
partitions as
2002 Jan 20
2
Major problems
I am having major problems on one of my file-servers. I have the root
filesystem on an Ext3 software RAID 1 between four SCSI drives. It had been
running for about two months without problems, but today I found it was
having some trouble with unlinked inodes and I/O errors on certain files. I
took it down to single-user mode, and ran fsck on it. That operation mixed
up files like /etc/hosts with
2008 Nov 10
1
Autodetecing RAID members upon boot... need to update initrd?
Hello fellow CentOS'ers-
I've got a system running CentOS 5.0. The motherboard has two onboard SATA ports with two drives attached. I installed the system on a RAID1 setup. However, I'd like to add a hotspare disk to the array. Since there are no additional SATA ports, I've installed an additional controller. After partitioning, the additional drive was easily and successfully
2002 Mar 02
4
ext3 on Linux software RAID1
Everyone,
We just had a pretty bad crash on one of production boxes and the ext2
filesystem on the data partition of our box had some major filesystem
corruption. Needless to say, I am now looking into converting the
filesystem to ext3 and I have some questions regarding ext3 and Linux
software RAID.
I have read that previously there were some issues running ext3 on a
software raid device
2010 Jul 23
5
install on raid1
Hi All,
I'm currently trying to install centos 5.4 x86-64bit on a raid 1, so if one the 2 disks fails the server will still be available.
i installed grub on /dev/sda using the advanced grub configuration option during the install.
after the install is done i boot in linux rescue mode , chroot the filesystem and copy grub to both drives using:
grub>root (hd0,0)
grub>setup (hd0)
2002 Jun 12
1
ext3+raid 1: Assertion failure in journal_commit_transaction()
We're getting the below errors about once a day on a system we're trying to
set up with RedHat 7.3. This has happened to multiple filesystems on
multiple physical and logical disks (basically we've got 4 drives as 2 sets
of RAID 1 arrays, details below).
Until a week ago, this box was a high-volume IMAP server running RedHat 6.2
with uptimes in the 200-day range, so I don't
2006 Dec 27
1
Software RAID1 issue
When a new system CentOS-4.4 is built the swap partition is always
reversed...
Note md3 below, the raidtab is OK, I have tried various raid commands to
correct.
swapoff -a
raidstop /dev/md3
mkraid /dev/md3 --really-force
swapon -a
And then I get a proper ourput for /proc/mdstat,
but when I reboot /proc/mdstat again reads as below, with md3 [0] [1]
reversed.
[root]# cat /proc/mdstat
2011 Sep 07
1
boot problem after disk change on raid1
Hello,
I have two disks sda and sdb. One of the was broken so I have changed the
broken disk with a working one. I started the server in rescue mode, and
created the partional table, and added all the partitions to the software
raid.
*I have added the partitions to the RAID, and reboot.*
# mdadm /dev/md0 --add /dev/sdb1
# mdadm /dev/md1 --add /dev/sdb2
# mdadm /dev/md2 --add /dev/sdb3
# mdadm
2006 Apr 15
1
Partition not recognized by mount
Hi,
somehow after a power failure i can't mount my ext3 partition :(
mount /dev/hdd2 /mnt/gentoo/
mount: you must specify the filesystem type
fdisk /dev/hdd
The number of cylinders for this disk is set to 484521.
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)
2009 May 20
2
help with rebuilding md0 (Raid5)
Sorry, this is going to be a rather long post...Here's the situation; I
have 4 IDE disks from an old snap server which fails to mount the raid
array. We believe there is a controller error on the SNAP so we've put
them in another box running CentOS 5 and can see the disks OK.
hda thru hdd looks like this
Disk /dev/hdd: 185.2 GB, 185283624960 bytes
255 heads, 63 sectors/track, 22526
2010 Dec 04
2
Fiddling with software RAID1 : continue working with one of two disks failing?
Hi,
I'm currently experimenting with software RAID1 on a spare PC with two
40 GB hard disks. Normally, on a desktop PC with only one hard disk, I
have a very simple partitioning scheme like this :
/dev/hda1 80 MB /boot ext2
/dev/hda2 1 GB swap
/dev/hda3 39 GB / ext3
Here's what I'd like to do. Partition a second hard disk (say, /dev/hdb)
with three
2005 Oct 02
1
mdadm quandary
Hello,
I wonder if has seen a problem of the sorts I am describing as at the
moment it is driving me nuts.
We have an array of LSI disks (Hardware Raid 5) which are attached to a
Linux node. The Node has a LSI929 dual fibre channel card that has a channel
attached to controller A and B of the array.
So we have a list of devices under /proc/partitions mapping what we are
expecting to see
2009 Apr 24
3
extend raid volume - new drive
Hi there, I have a system with the following:
# fdisk -l
Disk /dev/sda: 80.0 GB, 80000000000 bytes
255 heads, 63 sectors/track, 9726 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 9471 75971385 83 Linux
/dev/sda3
2006 Apr 09
0
Slab memory usage on dom0 increases by 128MB/day
Hello.
I''m running Xen 3.0.1 on the following hardware:
Dell SC1425 Rack Server
1x Intel Xeon 2.8GHz (64bit on 32bit OS/Xen) Hyper-threading enabled
2GB memory
80+250GB SATA hard drives (sda, sdb)
Debian Sarge on dom0. Different Debian versions on virtual servers.
This is running as a virtualized web server. It''s hosting four virtual
servers. 256MB memory is reserved to dom0