similar to: How to hide .journal file

Hello, Is there some document about ext3 performance tuning and choosing the right type and size of journal? Except RedHat's white paper. From what I read I understood that for typical operations data=ordered is prefered. For the cases when there are many writes not appending to files data=journal is the choice. And if I want to get the most performance or in case where program is doing

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, 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).

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

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

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

Hello, After some fiddling with the server now I have broken RAID1 with the "current" mirror on the disk with few unreadable sectors. If I try to re-add other disk to the mirror resync goes till those bad sectors and then starts from the beginning. And so on. Is it possible to somehow force resync to continue even after errors? Manual resync with dd would require a bit too long

Hi, I just converted all my hard disk filesystems from ext2 to ext3. This worked perfectly fine for all non-root fs, but I am having trouble converting the root fs, too. Here's what I did: 1. rebuilt my kernel (2.4.20, x86) with ext3 support linked in statically - no module. 2. Added a journal file to my root fs using 'tune2fs -j'. 3. Added 'rootfstype=ext3' to the

Stephen et al, You may remember me raising the point that the new e2fsprogs (1.25 as I remember) griped about old journals not having all the appropriate fields zeroed. I've just discovered that the RH 7.2 installer produces journals (ie on partitions created as ext3 from within the installer) that flag these warnings with a modified 1.25 e2fsck (the mods being to clear the errors rather

Hello On root Partition is .journal visible . On all other Partitions is invisible. At which way I can move it manually to a hiden inode? I have delete with chattr -i /.journal rm -f /.journal and installed ext3 with tune2fs -j /dev/hdb1 And /.journal is again visible! -- MfG / With best Regards Rusmir Duško Registered Linux user: #130654 http://counter.li.org

I have been playing with external journals some more and thought I should share some experiences. I am running 2.4.16 with the ext3 patches from Andrew Morton and e2fsprogs 1.25 I have an ext3fs filesystem on an 8 drive RAID5 array and place the journal on a partition of the mirrored pair that I boot off (all drives SCSI). I have tried pulling the power cable and seeing what happens. I finally

Hello, Recently we bought HP bl35 blades with LSI Logic SAS controllers. mpt* drivers works fine but I would like to somehow view status from command line. To monitor e.g. if one of the HDDs failed. I found mptutil on LSI Logic site but it just shows me configuration in quite cryptic form. Thanks, Mindaugas

Hello, I was asked if it is possible to zero unused space in ext3 partition? Users write to the server via Samba and are far from computer geeks so teaching them to use some safedelete utility is quite impossible. Is there some way or utility to wipe out all the data from unused space? Thanks, Mindaugas

Hello, I was asked if it is possible to zero unused space in ext3 partition? Users write to the server via Samba and are far from computer geeks so teaching them to use some safedelete utility is quite impossible. Is there some way or utility to wipe out all the data from unused space? Thanks, Mindaugas

Hello, Anybody can advice how to pass variable between 2 Asterisk servers over IAX2? With SIP I can use SipAddHeader. How do to the same with IAX2? Thank you. Regards, Mindaugas Kezys http://www.kolmisoft.com

For some time now I have been puzzled as to why certain portions of my system boot were quite slow -- but only after journal recoveries. I was fearing that there was some ugly interaction between the recovery and the use of the journal shortly afterward but alas that is not the case. So just in case anybody else is seeing this problem and decides to try to hunt it down, let me save you some

Hello, How to explain to fdisk that /dev/sda size changed? I increased LUN on storage, reloaded iscsi, did echo 1 > /sys/<something>/rescan. And I see in "dmesg" that kernel found new size of the LUN. But when I type "fdisk /dev/sda" it still shows old size. On /dev/sda1 sits LVM PV and I'd like to resize it instead of adding one more PV to volume group.

I created on my 60Gb hdd (data=journal) journal with 16Mb size, i think it not enough. As it is possible to change size of journal ?