Raid0 with btrfs

2010-08-05 Thread Leonidas Spyropoulos
Hi all, I want to make a btrfs raid0 on 2 partitions of my pc. Until now I am using the mdadm tools to make a software raid of the 2 partitions /dev/sde2, /dev/sdd2 and then mkfs.etx4 the newly created /dev/md0 device. From performance point of view is it better to keep the configuration of mdadm

Re: Raid0 with btrfs

2010-08-05 Thread Hubert Kario
On Thursday 05 August 2010 16:15:22 Leonidas Spyropoulos wrote: Hi all, I want to make a btrfs raid0 on 2 partitions of my pc. Until now I am using the mdadm tools to make a software raid of the 2 partitions /dev/sde2, /dev/sdd2 and then mkfs.etx4 the newly created /dev/md0 device. From

Re: wanted X found X-1 but you got X-2

2010-08-05 Thread adi
Hi Miao, ok, i'll try: mkfs.ext3 /dev/sdaN »used it as root-file-system quite a while« tune2fs -O extents,uninit_bg,dir_index /dev/sdaN (converted to ext4) »used it as root file system quite another while« btrfs-convert /dev/sdaN (converted to btrfs) »used it as root filesystem with -compress

Re: Poor read performance on high-end server

2010-08-05 Thread Mathieu Chouquet-Stringer
Hello, freek.dijks...@sara.nl (Freek Dijkstra) writes: [...] Here are the exact settings: ~# mkfs.btrfs -d raid0 /dev/sdd /dev/sde /dev/sdf /dev/sdg \ /dev/sdh /dev/sdi /dev/sdj /dev/sdk /dev/sdl /dev/sdm \ /dev/sdn /dev/sdo /dev/sdp /dev/sdq /dev/sdr /dev/sds nodesize

Re: Poor read performance on high-end server

2010-08-05 Thread Freek Dijkstra
Chris, Daniel and Mathieu, Thanks for your constructive feedback! On Thu, Aug 05, 2010 at 04:05:33PM +0200, Freek Dijkstra wrote: ZFS BtrFS 1 SSD 256 MiByte/s 256 MiByte/s 2 SSDs 505 MiByte/s 504 MiByte/s 3 SSDs 736 MiByte/s 756 MiByte/s 4