|Subject:||Re: xfs hardware RAID alignment over linear lvm|
|From:||Stewart Webb <stew@xxxxxxxxxxxxxxxxxx>|
|Date:||Fri, 27 Sep 2013 14:29:07 +0100|
|Cc:||Dave Chinner <david@xxxxxxxxxxxxx>, Chris Murphy <lists@xxxxxxxxxxxxxxxxx>, "xfs@xxxxxxxxxxx" <xfs@xxxxxxxxxxx>|
|References:||<CAE3v2EaODFud_S_BzuSjtwGwuNBXhvL0RiPB1P5QroF45Obwbw@xxxxxxxxxxxxxx> <52435327.9080607@xxxxxxxxxxxxxxxxx> <2F959FD9-EF28-4495-9D0B-59B93D89C820@xxxxxxxxxxxxxxxxx> <20130925215713.GH26872@dastard> <CAE3v2EYVnXiWq1n8AJ0+Y2eifZyhV08S4uLwf6B6mXXWAzBzRA@xxxxxxxxxxxxxx> <5243FCD6.4000701@xxxxxxxxxxxxxxxxx> <20130926215806.GQ26872@dastard> <5244DB1B.7000908@xxxxxxxxxxxxxxxxx> <CAE3v2Eb8hsCZxrV6_qwpC+9BpbYZ4bgigcUxm_zoK=B9SeDAZA@xxxxxxxxxxxxxx> <524583A4.9050207@xxxxxxxxxxxxxxxxx>|
Apologies for not directly answering -
I was aiming at filling gaps in my knowledge that I could not find in the xfs.org wiki.
My workload for the storage is mainly reads of single large files (ranging for 20GB to 100GB each)
These reads are mainly linear (video playback, although not always as the end user may be jumping to different points in the video)
There are concurrent reads required, estimated at 2 to 8, any more would be a bonus.
The challenge of this would be that the reads need to be "real-time" operations as they are interacted with by a person, and each
read operation would have to consistently have a low latency and obtain speeds of over 50Mb/s
Disk write speeds are not as important for me - as they these files are copied to location before they are required (in this case
using rsync or scp) and these operations do not require as much "real-time" interaction.
On 27 September 2013 14:09, Stan Hoeppner <stan@xxxxxxxxxxxxxxxxx> wrote:
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