similar to: ext3 + external journal -- Howto..

I'm trying to setup an external journal device, but it won't mount as ext3. I can only mount it as ext2. Everything seems happy when I run the commands. It will work when I don't use the external device. This is on RH7.2, linux-2.4.18-rc2. [root@dhcp4 root]# mke2fs -O journal_dev /dev/hdb5 [root@dhcp4 root]# mke2fs -j -J device=/dev/hdb5 /dev/hdb6 [root@dhcp4 root]# mount -t ext3

We are having problems remounting an ext3 filesystem using an external journal device. The filesystem in question was working fine until the server was rebooted. This is what we see on dmesg when trying to mount: EXT3: failed to claim external journal device. The external journal lives on a LVM2 logical volume and it seems to be accessible ( we can dumpe2fs and see filesystem information).

Hello, I had a scientific linux 3.0.4 system (rhel compatible), with 3 ide disks, one for / and two others in linear raid (250 gb and 300 gb each). This system was obsoleted so i move the raid disks to a new scientific linux 3.0.7 installation. However, the raid array was not detected ( I put the disks on the same channels and same master/lsave setup as in the previous setup). In fact

Hello Is it possible to externalize the journal of an already existing (journal inside) ext3 FS ? Here's what I did to create a new FS with external journal for /dev/emcpowerl2 on /dev/emcpowerl2 mke2fs -O journal_dev /dev/sda10 mke2fs -J device=/dev/sda10 /dev/emcpowerl2 it works perfectly , but can I do the same whitout reformating the original FS; /dev/emcpowerl1 which is in

Hi. I'm using e2fsprogs 1.23 on a Roswell system with a patched 2.4.7 kernel (using patch ext3-2.4-0.9.5-247) and am trying to create an ext3 filesystem whose journal is located on another device. The incantation I'm trying is: mke2fs -j -J device=/dev/hdc2 /dev/hdc3 I keep getting an error along the lines of "mke2fs: Journal superblock not found". I've tried creating

Hi Ted and all, I have a couple of questions near the end of this message, but first I have to describe my problem in some detail. The power failure on Thursday did something evil to my ext3 file system (box running RH9+patches, ext3, /dev/md0, raid5 driver, 400GB f/s using 3x200GB IDE drives and one hot-spare). The f/s got corrupt badly and the symptoms are very similar to what Eddy described

I'm setting up a new fileserver. It has two RAID controllers, a PERC 3/DI providing mirrored system disks and a PERC 3/DC providing a 1TB RAID5 volume consisting of eight 144GB U160 drives. This will serve NFS, Samba and sftp clients for about 200 users. The logical drive was created with the following settings: RAID = 5 stripe size = 32kb write policy = wrback read policy =

I noticed that ext3 filesystems are modified if mounted read-only: # mke2fs -j /dev/hdb1 [...] # md5sum /dev/hdb1 > MD5SUM # mount -t ext3 -o ro /dev/hdb1 /mnt/test1 # umount /mnt/test1 # md5sum -c MD5SUM md5sum: MD5 check failed for '/dev/hdb1' On examination of a block-for-block copy of 'before' and 'after' images with od and diff, I believe that the changes are

New api mke2fs for full configuration of filesystem. Signed-off-by: Wanlong Gao <gaowanlong at cn.fujitsu.com> --- daemon/ext2.c | 452 +++++++++++++++++++++++++++++++++++++++++ generator/generator_actions.ml | 18 ++ gobject/Makefile.inc | 6 +- src/MAX_PROC_NR | 2 +- 4 files changed, 475 insertions(+), 3 deletions(-) diff --git

I have configured 2x 500G sata HDD as Software RAID1 with three partitions md0,md1 and md2 with md2 as 400+ gigs Now it is almost 36 hours the status is cat /proc/mdstat Personalities : [raid1] md0 : active raid1 hdb1[1] hda1[0] 104320 blocks [2/2] [UU] resync=DELAYED md1 : active raid1 hdb2[1] hda2[0] 4096448 blocks [2/2] [UU] resync=DELAYED md2 : active raid1

Hi again! I would like to add an ext3 partition (eg. /dev/md11) with its external journal (on /dev/md21) to /etc/fstab in order to have it mounted while system-startup. Do I have to specify the external journal device in fstab or does the partition find its journal device by itself? If the first, ho should I specify it? I created the journal with mke2fs /dev/md22 -O journal_dev and the ext3

Hello, I come to you beacause i have something that i dont understand : i m using udev on a debian sid with 2.6.15.1 kernel. I have created an deprecated raid at /dev/md0 when i tried doing mkfs.ext3 /dev/md0 i have got : mke2fs 1.39-WIP (29-Mar-2006) Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) 4643968 inodes, 9277344 blocks 463867 blocks (5.00%)

Hi, I created a RAID1 array of two physical HDD's with chunk size of 64KiB under Debian "wheezy" using mdadm. As a next step, I would like to create an ext3(or ext4) file-system to this RAID1 array using mke2fs utility. According to RAID-related tutorials, I should create the file-system like this: # mkfs.ext3 -v -L myarray -m 0.5 -b 4096 -E stride=16,stripe-width=32 /dev/md0

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

Hello! I have some questions about external journals. On a 4 disk software RAID 5 I have two big devices (one 60 GB, one 180 GB). I would like to give each an external journal on a 2 disk software RAID 1 device and use data=journal. The journal will get its own partition with mke2fs -O journal_dev /dev/mdwhatever. The used 6 harddrives are all IDE drives, they are connected through

I have just purchased an HP ProLiant HP ML110 G5 server and install ed CentOS 5.2 x86_64 on it. It has the following spec: Intel(R) Xeon(R) CPU 3065 @ 2.33GHz 4GB ECC memory 4 x 250GB SATA hard disks running at 1.5GB/s Onboard RAID controller is enabled but at the moment I have used mdadm to configure the array. RAID bus controller: Intel Corporation 82801 SATA RAID Controller For a simple

My UPS failed and my server took an 'unscheduled outage' a few weeks ago. The only casualty appears to be a volume I used for backup. I usually maintain data on multiple hard disks, but in this case I errantly had some data (of marginal value) on this file system. At this point, the data is not worth enough for me to send the drive out for data recovery, but it's worth enough to

I have a system that is RAID -1 configured as /dev/md0 is /dev/hda1 /dev/hdb1 /dev/md1 is /dev/hdb3 /dev/hdb3 it seems as though /dev/hda has failed.... I have another disk (identical model) that I can replace hda with. I know about the commands fdisk to repartion and raidhotadd /dev/md0 /dev/hda1 and raidhotadd /dev/md1 /dev/hda3 (to be ran after the system boots). BUT... how do I now get

I am trying to install CentOS 4.6 to a pair of 750GB hard drives. I can successfully install to either of the drives as a single drive, but when I try to use both drives and mirror the partitions, I start having problems. Anaconda crashes as it is trying to format the drives. This is what I'm trying to create: /dev/md0: 200MB, /boot /dev/md1: 2GB, swap /dev/md2: rest of the

Andreas, why is it relevant only in case of RAID5 or RAID6? regards, Martin On Fri, Mar 7, 2014 at 5:57 PM, Andreas Dilger <adilger@dilger.ca> wrote: > Note that stride and stripe width only make sense for RAI-5/6 arrays. > For RAID-1 it doesn't really matter. > > Cheers, Andreas > >> On Mar 6, 2014, at 13:46, Martin T <m4rtntns@gmail.com> wrote: >>