Milen, On 8/1/06 2:49 PM, "Milen Kulev" <makulev@xxxxxxx> wrote: > Is anyone using XFS for storing/retrieving relatively large amount of data (~ > 200GB)? I concur with the previous poster's experiences with one additional observation: We have had instabilities with XFS with software RAID (md) on 32-bit Xeons running RedHat4 U3 with the Centos 4.3 unsupported SMP kernel. XFS would occasionally kernel panic under load. We have had no problems with XFS running on the same OS/kernel on 64-bit under heavy workloads for weeks of continuous usage. Each server (of 16 total) had four XFS filesystems, each with 250GB of table data (no indexes) on them, total of 16 Terabytes. We tested with the TPC-H schema and queries. We use the default settings for XFS. Also - be aware that LVM has a serious performance bottleneck at about 600MB/s - if you are working below that threshold, you may not notice the issue, maybe some increase in CPU consumption as you approach it. - Luke
