hi all I'm trying to make a real-time filesystem for testing purposes onto a single disk. (yes - I know it's silly, but it's only for testing). I'm trying to do this on one drive with two partitions,
This is from http://oss.sgi.com/projects/xfs/102_caveats.html I guess that pretty much says it all... :-) -- Verkaufe Original-BMW-Raeder: L I N U X .~. http://adsl-bergs.rz.rwth-aachen.de/~rabe The
I really need to increase some sort of chunk size dramatically. Do you know any other way of doing this? I also want the log somewhere else, like on a separate spindle. I may be able to use ReiserFS
Except that I am not convinced the caveats page is right in this respect. To make a realtime fs you will need two partitions, mkfs will need to be told about the data and realtime partitions, and mou
Oh, and logging somewhere else is not a problem, just use the logdev argument to mkfs.xfs and mount: mkfs.xfs -l logdev=/dev/sdb1,size=10000b /dev/sda1 mount -o logdev=/dev/sdb1 /dev/sda1 /mnt/point
Realtime subvolumes is on my things to test before the next release. I don't know when it will get done, but it will take a bit of test development to do it. Realtime files on XFS require an ioctl, s
What's the main difference between a realtime partition and a data partiton? Can a datapartition (or non-realtime partition) be given an extsize= parameter? That's the one I REALLY need... -- Roy Si
Now I'm curious, what's the basic purpose and performance difference between a real-time filesystem and a "normal" filesystem? Is it some sort of caching behavior change more suitable for streaming m
I really need to increase some sort of chunk size dramatically. Do you know any other way of doing this? I also want the log somewhere else, like on a separate spindle. I may be able to use ReiserFS
ok. But XFS realtime subvolumes are, as I understand, not yet supported on Linux platform. Are there any plans of supporting it soon? How is a file placed or retrieved on the realtime subvolume? Is
??? No it is an ioctl interface to an xfs file, /proc has nothing to do with it. Steve -- Steve Lord voice: +1-651-683-3511 Principal Engineer, Filesystem Software email: lord@xxxxxxx
OK, here goes, XFS realtime 101 The XFS realtime subvolume is a separate dataspace in the filesystem, it is only used for files marked as realtime after they are created. There is nothing in the real
hi Roy, This is a bug in Linux mkfs.xfs where it is checking the size of the device - the code is currently incorrecly inspecting the data device instead of the realtime device here, so the lseek fai