Xfs delaylog hanged up

Richard Scobie r.scobie at clear.net.nz
Tue Nov 23 22:03:45 CST 2010


Spelic wrote:

 > Yep, because I know MD better, I can see the code, it's more flexible 
 > and customizable, can be controlled with scripts more easily... Also
 > parameters to the underlying drives can be controlled if I use MD, 
and > it's easier to align filesystem to stripes. Also my time is better

Slightly off topic, but your previously mentioned xfs_info shows sunit 
and swidth values of zero, so your filesystem is not aligned to stripes.

/# xfs_info /perftest/xfs/
 > meta-data=/dev/mapper/perftestvg-xfslv isize=256    agcount=16,
 > agsize=50331648 blks
 >          =                       sectsz=512   attr=2
 > data     =                       bsize=4096   blocks=805306368, imaxpct=5
 >          =                       sunit=0      swidth=0 blks

Regards,

Richard




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