On Tue, 2003-08-26 at 05:29, K Ramesh wrote:
>
> Hi,
> I'm trying to create a real-time subvolume in my Linux System, running
> SuSE 8.1 (Kernel: 2.4.19-64GB-SMP) on a dual-xeon PC. The system has a 3ware
> ATA-Raid controller.
>
> When I try to create a real-time subvolume, this what I get:
>
> wop18:~ # mkfs -t xfs -f -r rtdev=/dev/sda6 /dev/sda5
> meta-data=/dev/sda5 isize=256 agcount=49, agsize=1048576 blks
> data = bsize=4096 blocks=51201147, imaxpct=25
> = sunit=0 swidth=0 blks, unwritten=0
> naming =version 2 bsize=4096
> log =internal log bsize=4096 blocks=6250, version=1
> = sunit=0 blks
> realtime =/dev/sda6 extsz=65536 blocks=183237382,
> rtextents=11452336
> XFS: This FS has an RT subvol - specify -o rtdev on mount
> mkfs.xfs: real-time device init failed
> mkfs.xfs: filesystem failed to initialize
>
> Does this mean that the realtime subvolume is not usable? Can you please
> tell me the status of realtime subvolume status of XFS in Linux? I checked the
> archives, and found similar questions raised in early 2002. Wonder if we have
> anything new now.
Your kernel is almost that old ;-) Realtime should be working in recent
kernels, be aware you need to use O_DIRECT to write to realtime
subvolumes.
Steve
|