B. Cook wrote:
Hello all,
We had a raid card die in a dell box and reinstalled FreeBSD 7 and
restored from backups.. the problem is amd64 didn't boot on the box and
the person doing the restore wanted to 'help' and changed from ufs2 to
zfs..
while being a noble effort, he was testing on amd64 and didn't think
that amd64 to i386 was that big a deal for zfs.. *sigh*
So here we are.. if I can't figure out how to make this 'stable' I will
dump and restore and reinstall i386 ufs2/gmirror..
So we have a box w/ 3G of ram running samba and squid for a few hundred
people.
I have tried to fix /boot/loader.conf:
# cat /boot/loader.conf
autoboot_delay=4
vm.kmem_size_max=1024M
vm.kmem_size=1024M
zfs_load=YES
vfs.zfs.prefetch_disable=1
vfs.root.mountfrom=zfs:tank/root
Try adding
vfs.zfs.arc_max=100M
(or less possibly, tuning as you require it.)
I gather you've looked at the tuning guide on the wiki so cant really
suggest anything further. The gains from zfs are nice and there are
people running it in production, but its definitely still experimental.
Vince
accf_http_load=YES
accf_data_load=YES
and rebuilt the kernel with many device drivers disabled..
I found a script on the zfs tuning page on the wiki, but I do not
understand what it is telling me..
TEXT=7031512, 6.70577 MB
DATA=514754560, 490.908 MB
TOTAL=521786072, 497.614 MB
kldstat yeilds this output:
Id Refs AddressSize Name
19 0x8040 55f3e8 kernel
21 0x8096 b23b0zfs.ko
32 0x80a13000 23bc opensolaris.ko
41 0x80a16000 191c accf_data.ko
51 0x80a18000 22d4 accf_http.ko
61 0x80a1b000 68394acpi.ko
71 0x87ecb000 3000 pflog.ko
81 0x87ed7000 32000pf.ko
We have updated to 7.1-p2 with the hopes of fixing somethings..
So the problems that we are having is that the machine stops responding..
ping never stops, it just stops answering tcp requests.
and we only have a few minor tweaks in sysctl.conf:
security.bsd.see_other_uids=0
net.inet.ip.random_id=1
kern.randompid=32768
kern.coredump=0
net.inet.tcp.delayed_ack=0
net.inet.tcp.inflight.enable=0
net.inet.tcp.path_mtu_discovery=0
net.inet.tcp.recvbuf_auto=1
net.inet.tcp.rfc1323=1
net.inet.tcp.sendbuf_auto=1
and in rc.conf we have set some things on the bge0 interface:
ifconfig_bge0=inet 10.20.0.230 netmask 255.255.254.0 rxcsum txcsum media
1000baseTX mediaopt full-duplex polling
Is there something that is set, that is making the system stop responding?
is there something else that could be done?
If stability and performace are the goals (in that order) would it just
make sense to reinstall and go back to gmirror on ufs2?
Thanks in advance.
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