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Questions tagged [xfs]

XFS is a file system originally for SGI's IRIX OS, but is now available for Linux. It is known for handling large files and large file systems well, one of the few Linux file systems that can handle partitions over 16.8TB.

XFS is a file system originally for SGI's IRIX OS, but is now available for Linux. It is known for handling large files and large file systems well, one of the few Linux file systems that can handle partitions over 16.8TB.

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Formatting drive as XFS on Centos 5.5

We've got a Centos 5.5 server with 2 array's. One is standard ext3 mounted as /, the other is an SSD array that we are attempting to format as XFS before moving our MySQL database to it. I've partitioned the SSD array as /dev/sdb1, but when…
user103677
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Safe filesystem for Email homedir storage? XFS? JFS? Btrfs? Reiser4?

i'm building an email system and considering some filesystem that support online-resize, safe when power-outage, and does not restrict number of files per directory(or at least can hold some millions file per directory) I want to know which…
Locke
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XFS maximum log size - SW RAID 10 (mdadm) - SLES 11 SP1

I am a bit puzzled about the maximum metadata log size that can be setup in a XFS file system. I have found the same information everywhere: the maximum size is 64K blocks or 128M, whichever is smaller. With a standard 4K block size I have then max…
Leonardo
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How many subdirectories does the XFS filesystem support within a given directory?

EXT3 supports 32,000 subdirectories. EXT4 supports 64,000... I've read about people having millions of subdirectories on the XFS filesystem, but can't find an exact value referenced anywhere. How many subdirectories does the XFS filesystem…
T. Brian Jones
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EXT3 vs EXT4 vs XFS

Recently I read a lot about "new" file systems. I checked some benchmarks that show MySQL working faster on EXT4 or XFS (and some other FS). I also "found" that XFS and EXT4 are included in CentOS 5.X However most of the articles I read speaks…
Nick
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Is this infrastructure safe for scaling EBS online?

Our application uses EBS to store data. The storage requirement of the application grows rapidly as users signup. We need to do it online so that users don't experience downtime with the application. So, here is what we do: The file system is…
Sabya
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Optimal way to format 20TB partition with XFS in linux?

I have a 20TB RAID5 array (LSI 9265-8i / 8 x 3TB 7200rpm drives) configured with a 1MB stripe size. What's the optimal way to partition, and format, this partition in Linux to maximize performance for a single ~20TB share? I'm a linux newbie, so…
Jason
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XFS Project Quotas on Debian Squeeze

I'm trying to set up project quotas with XFS on a debian box and run in some problems when defining the quotas i get back an error cannot set limits: function not implemented Am i missing something? cat…
dasrecht
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XFS on LVM or directly on MD array?

I have a RAID6 array consisting of 10x2TB drives that I will be using as a NAS device. The server enclosure has 6 additional bays that I may use for future expansion. The storage will all be 500G-1T sparse files served up as iSCSI disks to various…
John P
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volume group disappeared after xfs_check run

EDIT** I have a volume group consisting of 5 RAID1 devices grouped together into a lvm and formatted with xfs. The 5th RAID device lost its RAID config (cat /proc/mdstat does not show anything). The two drives are still present (sdj and sdk), but…
John P
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Configuring multiple XFS filesystems with external logs on LVM

I'm configuring an NFS server with multiple filesystems for use by different groups of users. Other similar systems we have installed recently have used XFS filesystems on logical volumes, on top of RAID 6, so that we can leave some free space and…
Ben
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Poor XFS performance -- what's going on?

I recently formatted a 20TB array as XFS. For file transfers < 10G performance is fantastic. However once I exceed 10G disk I/O decays logarithmically. I have the journal on the same disk. When I look at the disk IO usage, I see that jbd2flush…
ensnare
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Trying to determine the correct number of XFS allocation groups for postgresql server on Linux

I am running a PostgreSQL 8.4.5 server on the linux 2.6.33.7 kernel on an 8 disk raid array with an LSI controller. Most of the tables are around 1GB or less. I know that XFS uses allocation groups (AG) to achieve I/O parallelism. My first question…
HBlend
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How decode xfs lost+found directory

I have managed to trash my homebrew Nas box (an old hp d530 + 2x 750gb sata soft raid1 + 17gb boot disk with ubuntu server 8.10) I have searched the web and tried to repair the file system but to no avail :( I was thinking that the dirs/files…
Satpal
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/ partition as xfs in Centos 5 ? , any advantage for apps using large files?

I have been investigating a bit previously to install Centos 5 in a box that it will use applications managing large files (i think more than 300 MB minimal). I was thinking in , as / has a lot of small files, it would be better use ext3 instead xfs…
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