Date: Fri, 28 Jul 2000 19:21:10 +0400 (MSD) From: Maxim Konovalov <koma@rbc.ru> To: freebsd-hackers@freebsd.org Cc: koma@rbc.ru Subject: vinum striping quiestion Message-ID: <Pine.BSF.4.21.0007281902500.36010-100000@stone.rbc.ru>
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Hello,
I've got a question about vinum. There are two scsi disks with vinum
stripe. Here is a vinum config:
drive a device /dev/da2s1e
drive b device /dev/da3s1e
volume vinum0
plex name vinum0.p0 org striped 1024s vol vinum0
sd name vinum0.p0.s0 drive a plex vinum0.p0
len 34791424s driveoffset 265s plexoffset 0s
sd name vinum0.p0.s1 drive b plex vinum0.p0
len 34791424s driveoffset 265s plexoffset 1024s
# uname -sr
FreeBSD 4.1-STABLE
There are not any other fs on these disks. The problem is - when I run
iozone (iozone 4096 /logs/io0.tmp) I get a very strange result:
# iostat -d da1 da3 10
da1 da3
KB/t tps MB/s KB/t tps MB/s
0.00 0 0.00 0.00 0 0.00
4.50 107 0.47 0.00 0 0.00
4.51 98 0.43 0.00 0 0.00
4.50 116 0.51 0.00 0 0.00
4.49 117 0.52 0.00 0 0.00
4.50 111 0.49 0.00 0 0.00
....
You see, there is not activity on da3. Are there any explanations?
Thanks,
maxim
- --
Maxim Konovalov, mailto: koma@rbc.ru
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