similar to: Ext4 on CentOS 5.5 64bit

Hi all, For those of you that have been using the ext4 technology preview on CentOS 5.5, how has it panned out? Does it perform as expected? How do you feel the stability, creation of the FS and the administration of it is? Ideas and comments welcome. Thanks. -- BW, Sorin ----------------------------------------------------------- # Sorin Srbu [Sysadmin, Systems Engineer] # Dept of Medicinal

I am about to install a new server running CentOS 5.4. The server will contain pretty critical data that we can't afford to corrupt. I would like to benefit from the extra speed and features of a ext4 filesystem but I don't have any experience with it. Is there some member of the list who can enlighten me on whether ext4 is mature enough to be used on a production server without too

Enhance fstype so it properly takes into account whether or not the ext4 and/or ext4dev filesystems are present, and properly handles the test_fs flag. The old code also has some really buggy checks --- for example, where it compared the set of supported ro_compat features against the incompat feature bitmask: (sb->s_feature_incompat & __cpu_to_le32(EXT3_FEATURE_RO_COMPAT_SUPP) I

Can anyone explain how the disk elevator works and if there is anyway to tweak it? I have an email server which likely has a large number of read and write requests and was wandering if there was anyway to improve performance. Matt

Hi, there was recently a bug reported against EXT4 that gets triggered by KDE: https://bugs.edge.launchpad.net/ubuntu/+source/linux/+bug/317781 Now I''d like to verify that my understanding of ZFS behavior and implementations is correct, and ZFS is unaffected from this kind of issue. Maybe somebody would like to comment on this. The underlying problem with ext4 is that some kde

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello everyone, I been using CF cards for almost more then 7 years now with ext file-system without any major problems on ALIX boards. Last year I took 30 other systems in production with ext4 and the CF cards been dropping out pretty fast, it may have been a bad batch but I do want to look at it. I don't think the devices writes a lot of IO (is

ext4 no longer requires a journal. Compare: http://git.kernel.org/?p=fs/ext2/e2fsprogs.git;a=commitdiff;h=a90f5391dda78f7bc4a8196a78355584ace0adf5 Signed-off-by: Colin Watson <cjwatson at ubuntu.com> --- usr/kinit/fstype/fstype.c | 8 -------- 1 files changed, 0 insertions(+), 8 deletions(-) diff --git a/usr/kinit/fstype/fstype.c b/usr/kinit/fstype/fstype.c index 69e0e30..bf63b1b

On Thu, Aug 29, 2013 at 12:56:35PM +0100, Mark Ballard wrote: > I think this is really an attempt at user feedback, rather than user > discussion. But there's no such thing as a user-feedback mail list. > > Nevertheless, others may find this pertinent: why doesn't mke2fs > handle USB's competently? And if it does, why doesn't it reassure me > so? And how can I

* Andreas Dilger <adilger@dilger.ca> hat geschrieben: > The "lifetime writes" value has not been around forever, so if the > filesystem was originally created and populated on an older kernel > (e.g. using ext3) it would not contain a record of those writes. It was created as stable ext4 in the first place. So only if there was a stable ext4 release which didn't

On Thu, Oct 16, 2014 at 11:01:35PM +0200, Bodo Thiesen wrote: > > Since it never get's updated unless the file system is unmounted, it can > only be used for a 24 hours test by mounting the file system now, > unmounting it 24 hours from now and then taking the difference. It also gets updated if the file system syncfs(2) or sync(2) system call. But if you crash, any writes since

I think this is really an attempt at user feedback, rather than user discussion. But there's no such thing as a user-feedback mail list. Nevertheless, others may find this pertinent: why doesn't mke2fs handle USB's competently? And if it does, why doesn't it reassure me so? And how can I handle a linux-formatted USB flash drive in the absence of my system giving me any guidance?

Hello, I'm wandering how can I make voicemail notification when i got a messages in asterisk mailboxes. For the moment i have e-mail notifications, but I readed that I can do also a sms notification to local sip accounts. Also I'm wandering if i can make something like callback from asterisk to sip account, and play voicemail check, when the user log in. Is there someone that use this

Hello, I'm in the process of finalizing the spec for my new dovecot VM, and this is the last question I need to address... I've read until I'm just about decided on XFS, but I have no experience with it (been using reiserfs on my old box (@ 8 yrs old now), and never had a problem (knock on wood), but considering its current situation (little to no development support for reasons

On a running 64 bit CentOS 5.6 box is it possible to convert from Ext3 to Ext4 to improve performance? Right now I can deal with a few hours of downtime on it. This is an email server with lots of I/O due to seek time. Software RAID1 as well. Will Ext4 offer much of an improvement?

Doubt if there is any answer to this but will ask anyway. Have a few pop3 accounts with thousands of messages. Its slow when checking email naturally. Are there any tweaks to speed it up? I imagine there is an exchange of the message and header list which is the slow down. Too bad the list could not be compressed with gzip or something first. I think http has an option similar to that. Just

https://bugzilla.samba.org/show_bug.cgi?id=11588 Bug ID: 11588 Summary: missing option: preallocate for all files except for sparse Product: rsync Version: 3.1.2 Hardware: x64 OS: Linux Status: NEW Severity: enhancement Priority: P5 Component: core

I am getting the "Segmentation fault" when using hclust in R-1.9.1 running under SuSe 9.0 64-bit kernel on a dual opteron system with 8G of RAM. I was wandering if anybody could offer any insight? Thanks, mario.

Has anyone installed a high I/O application such as an email server on SSD drives? Was thinking about doing two SSD's in RAID1. It would solve my I/O latency issues but I have heard that SSD's wear out quickly in high I/O situations? Something like each memory location only has X many writes before its done. Just wandering if anyone has tested it and if newer SSD's are better about

Unfortunately, there has been a huge number of bug fixes for ext4's online resize since 2.6.32 and 1.42.11. It's quite possible that you hit one of them. > The 51.8% seems very suspicious to me. A few weeks ago, I did an online > resize2fs, and the original filesystem was about 52% the size of the new > one (from 2.7TB to 5.3TB). The resize2fs didn't report any errors, and

I have 2 TDM04b cards currently running in an asterisk at home box that I am ready to replace with the CVS version of asterisk. What I am looking for is thoughts / recommendations. I want to move this to a small form factor ( shuttle ) machine and was wandering what expeience / advice there was for this? I have seen the incompatible motherboard list at digium ( and in fact I think my current