similar to: journal tuning

Hello, I converted one of my servers to ext3 and load average numbers went up. Now they are ~2-3 while on ext2 LA was <0.4. And I'm constantly seeing processes and kjournald in D state. vmstat confirms that. But even in such LA CPUs are ~99% idle. What can be wrong? RedHat 7.1 kernel 2.4.18-18.7.xsmp. SCSI cards: Compaq RAID array controller (cciss) and Q Logic ISP1020 (isp_mod).

Hi. I am using a large storage which is ext2 file system of 1T byte. It has many file types, doc, mail data, zip, etc. It doesn't have a database file. I want to change the file system from ext2 to ext3. It also can't divide to any partitions. How to decide journal mode and journal size? Please advice to me. Recommend a journal mode. (orderd or journal) Recommend a journal

[ If this is explained somewhere else (HOWTO or FAQ), please give me a pointer. ] Is there any way to mix loop-device (and in particular) loop-AES and ext3 together in data journaling mode? Ie. bottom -> to -> top ext3 - loop-AES - ext3 raw - loop-AES - ext3 Or am I shooting myself to leg, I am? BR, Jani -- Jani Averbach

Right now I'm building a 2.4.17 kernel on an HPPA Linux system. The kernel it ships with supports ext2 only. Has anybody tried ext3 on HPPA? -- Ralf Hildebrandt (Im Auftrag des Referat V A) Ralf.Hildebrandt@charite.de Charite Campus Virchow-Klinikum Tel. +49 (0)30-450 570-155 Referat V A - Kommunikationsnetze - Fax. +49 (0)30-450 570-916 "A man who

hello, i just wanted to know how to move files from the master node to slave nodes...for example i have 10 files in the master and i want to move 2 files to each slave node...how do i do that....i have redhat7.2......i tried rpc but it said command not found...i am using a beowulf cluster. your's sincerely, devi vijay Get Your Private, Free E-mail from Indiatimes at

Where can I find a patch for ext3 fs for kernel-2.4.2. Currently I'm using RH7.1 I dont want to upgrade to RH7.2!!! I just want to applay the ext3 patch for kernel-2.4.2 compile and use it. Thanks in advance! Sanat

I am using kernel 2.4 and ext3 fs on all partitions. I recently suffered a power outage while working on some documents. Some of them had previously been saved other had not. In either case none of the new data was restored. I am also finding other strange disapearrances like bookmarks and panel applets. My understanding of the ext3 fs is that these documents should have been restored

Hello All, Yesterday, one of our customer's cluster(2 box) server goes down after a I/O error during the backup procedure. When we turn on the cluster again, the 600M database file have been lost, disapear. Now, I'm with one of the disks (the other was used to rebuild the database server) and need to know how can I recover any piece of data from the disk. After the crash we mount the

I am running postfix on RH machine. decided to upgrade one of my machines from 7.1 to 7.2 - performance drop of 75 percent !!!!! moved back to ext2(remount partition as ext2) - performance is back. on the 7.1 upgraded to ext3 (only the disks), rebooted - performance drop of 70 percent... used a 2.4.17 kernel compiled by myself - a little faster then the last RH kernel, but still runs at third

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

Dear ext3 hackers, I'm running a RH 7.2 system with kernel 2.4.18 an a ext3 fs. Yesterday night this machine, which is being tested with a Proxy server (Squid), was accidentally power off (electrical outage). Now, when the system is booted, I have a ext2 'read only' fs; fsck doesn't find any kind of problem (automatic or manually executed: fsck -t ext3 /dev/sdb1). The only fstab

hi i got 2 questions and maybe someone could shed some light: a) i'm using kernel 2.4.17 and use ext3 in it. is it possible that the whole system is slower than with ext2? i switched back to ext2 (great feature!!!) and the system's response seemed somewhat better. should/could there be such a effect as double writing of journaled data? i didnt activate debugging (jbd). b) is reiserfs

Hello, What is the simpliest way to run Redhat 7.3 server as CentOS 5 domU? I see that Xen emulates Intel PIIX ATA controller for HVM domUs but latest kernel of Redhat 7.3 (2.4.20-20.7smp) has no ata_piix kernel module yet. Is it possible to download it somewhere or there is another way? :) And I'd like to avoid reinstalling them with the new OS. Preferably they'd just die their

Hello, Maybe it's already FAQ but how to hide .journal file on rootfs? I upgraded filesystems on one of my servers from ext2 to ext3 and everything went smoothly. I'd like to avoid booting from alternative media because server is in production. FS update done together with server's kernel update. Thanks, Mindaugas

Hello, We have long running problem with NetApp filers. When we connect server to the filer sequential read performance is ~70MB/s. But once we run database on the server seq read performance drops to ~11MB/s. That's happening with two servers. One is running Oracle another - MySQL. During speed tests database load is very light (less than 1MB/s of reads and writes). During the tests NetApp

Hello, What do you use to manage virtual Xen machines? Nothing complex though preferably. :) I've already converted some servers for a Xen dom0 and starting to loose the picture - which VM runs where and how much resources left on each server. Regards, Mindaugas

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

Hello, How to upgrade existing ext3 partition to new features? Moved from RHEL3 to RHEL4. I had to install from c0d0p6 so partition could not be reformated during install. Thanks, Mindaugas # dumpe2fs /dev/cciss/c0d0p1 | fgrep features dumpe2fs 1.35 (28-Feb-2004) Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery sparse_super # dumpe2fs

http://www.sample.banga.lt/crash.gif System - fully (except kernel) updated RedHat 7.3. Filesystems - ext3 in default ordered mode. What could be the cause of the crash? Kernel update will solve the problem? Thanks, Mindaugas

Hello, Just became curious - is O_DIRECT already supported on ext3 or not yet? And a little bit offtopic :). Is that flag supported on some other filesystem other than ext2? Thanks, Mindaugas