similar to: EXT3 and disk write back cache

Hi, I'm encountering a strange situation. I'm writing to an ext3 filesystem mounted like this: /dev/scsi/host2/bus0/target0/lun0/part3 on /tmp/volumes/md0 type ext3 (rw,noatime,data=ordered) with the physical device being a FC-connected RAID (IBM DF4000) no software raid personality is used I'm using 2.4.18-19.7 My test program writes files in a loop, with the essential system

I'm experiencing strange behavior from my ext3 RAID5 array and my Fedora Core 2 system. Before I go crazy varying all sorts of tuning parameters, I thought some list subscribers might provide me with useful advice. The problematic array is: 3x Promise Technology Ultra 100 TX2 PCI cards 6x Maxtor 250GB IDE drives (one drive per cable) RAID level 5, 128Kb chunk size, EXT3: "mkfs -t ext3

I was hoping someone could either help me or point me in the direction of a resource. I have searched the web for any howto on repairing a failed array, but keep coming up short. I have a home file server running a RAID 5 array that now will not mount my array. I believe it is telling me there is a problem with the second drive. The basics: RedHat 8.0 kernel 2.4.20-28.8 don't know the

Hi, I recently upgraded one of my fileservers from 2.4.16 to 2.4.18 plus the ext3-cvs.patch that Andrew Morton pointed me to for addressing and assertion failure. Since then I have been getting lots of errors like: May 21 14:07:03 glass kernel: EXT3-fs error (device md(9,0)): ext3_add_entry: bad entry in directory #2945366: rec_len %% 4 != 0 - offset=0, inode=1886221359, rec_len=24927,

I remember that there used to be a problem with disk quotas on Ext3 and Raid5 on the 2.4.x kernel series. I am running 2.4.14 with Ext3 and Raid5 and am having problems with quotas and am wondering if I have something misconfigured or if this combination doesn't work yet. -- Daniel R. Bidwell | bidwell@andrews.edu Andrews University Information Technology Services If two always agree, one of

Is anyone using Ext3 on a 2.4.x kernel with software raid5? Does it work correctly? Last I checked noone had tried it yet, but that was before I went away on vacation. -- Daniel R. Bidwell | bidwell@andrews.edu Andrews University Information Technology Services If two always agree, one of them is unnecessary "Friends don't let friends do DOS" "In theory, theory and practice

Hi, I've just got possession of a Dell PE R720 with 2 MD1200 disk enclosures. Both MD1200 are fully populated with 12 x 3 TB disks The system will basically be a student file-server running CentOS 6.x serving various size files from small c programs to multi gigabyte audio and video files over GB ethernet. The first MD1200 will be configured as the NFS disk. The requirements are for 6

On Monday August 4, akpm@osdl.org wrote: > Daniel Jacobowitz <dan@debian.org> wrote: > > > > I came back this morning and found: > > EXT3-fs error (device md0) in start_transaction: Journal has aborted > > EXT3-fs error (device md0) in start_transaction: Journal has aborted > > EXT3-fs error (device md0) in start_transaction: Journal has aborted >

Hi, I have read this thread and want to say that I have expirienced the same problem. Once, when I was loged in, one of my filesystems ( root filesystem :( ) became read-only with the same symptoms. But results was more tragic. Almost in each directory avg. 10% of files had incorrect attributes, owner, links, etc. But filenames was correct. So, I was obliged to re-create root filesystem :(

A couple of questions. Are there any linux tools that can de-frag an ext2/3 partition? Are there any advantages to doing so if you're running hardware RAID5? Are there advantages / disadvantages if you're running LVM? === Al

I have 12 750GB drive appliance from HP. I was wondering what is the best disk configuration? I suppose a large RAID5 would be bad since rebuilding would take too long. What do you recommend? TIA -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20080526/faf0ff6f/attachment-0005.html>

23.09.2011 11:31, Janne Pikkarainen ?????: Thank you for reply, BTW, other webserver has almost the same bonnie results (10283ms and 5884ms) on ext3 partition with 45GB of data (1.5 millions of files)?! Hardware and RAID5(also hardware) are the same: HP Proliant DL380 G4 with SmartArray 6i controller (as I see it comes with 128MB BBWC enabler but not kit). I did not tried to mount fs with

Hi, I just installed Redhat AS 2.1 on a a new machine with tons of RAID5 space. During the install, I created the partition/filesystem /largedisk with 550784264 blocks. After everything is installed and mounted, I get the following in a df: /dev/sda8 550784264 32828 522773144 1% /largedisk The avail + used != total, not even close. I realize that the 32828 is probably the

Hi, This is my current config: /dev/md0 -> 200 MB -> sda1 + sdd1 -> /boot /dev/md1 -> 36 GB -> sda2 + sdd2 -> form VolGroup00 with md2 /dev/md2 -> 18 GB -> sdb1 + sde1 -> form VolGroup00 with md1 sda,sdd -> 36 GB 10k SCSI HDDs sdb,sde -> 18 GB 10k SCSI HDDs I have added 2 36 GB 10K SCSI drives in it, they are detected as sdc and sdf. What should I do if I

Hi, I've recently installed ext3 on an 800MB RAID5 (software) array. I am running RedHat Linux 7.1 with the Linux kernel 2.4.12-ac3 on a 1GHz Pentium system with 128MB RAM. I am seeing a significant amount of write operation slowdown when running ext3 (and kjournald), as opposed to my old ext2. The problem seems to be associated with the times that kjournald is accessing the disk. At

Le 18/02/2015 09:24, Michael Volz a ?crit : > Hi Niki, > > md127 apparently only uses 81.95GB per disk. Maybe one of the partitions has the wrong size. What's the output of lsblk? [root at nestor:~] # lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 232,9G 0 disk ??sda1 8:1 0 3,9G 0 part ? ??md126 9:126 0 3,9G 0 raid1 [SWAP] ??sda2 8:2

Hey folks, CentOS / PostgreSQL shop over here. I'm hitting 3 of my favorite lists with this, so here's hoping that the BCC trick is the right way to do it :-) We've just discovered thanks to a new Munin plugin http://blogs.amd.co.at/robe/2008/12/graphing-linux-disk-io-statistics-with-munin.html that our production DB is completely maxing out in I/O for about a 3 hour stretch from

I have been trying to install CentOS 4.1 on a new server today. The installation went fine but the system doesn't boot. It doesn't even get to the Grub screen. The system has a 3ware 9500 series controller and 12 250GB SATA disks which are configured for RAID5 with one hot spare. I searched on the web and noticed that this is a Grub (and Lilo) limitation. Is there any way around it other

System : CentOS 4.2 2.6.9-22.0.1.ELsmp System fully up-to-date. 3GB RAM 3ware 9000S card, with Raid5 array. I think that's about all relevant info ... Had file on disk (not array), attempted to mv file to array. Went fine till 2.4GB was copied, then it slowed down to a meg every few minutes. Free memory was ~50MB (Typically is 1.5-2GB), and cache was 2.5GB. Stopped the move, however cache

Has anyone experienced a significant degradation in ext3 performance when using it on a Multi-TeraByte RAID? As part of an experimental setup, I hooked up three 300GB drives and made an EXT3 RAID5 out of them, using the entire space one each drive, and started throwing a large number of files in the size-range 3KB to 50 KB. Then, I deleted the raid, and created a new one, but this time, I used