Hello,
I am currently using Samba 2.2.3a on a Sequent box running DYNIX/ptx v4.0.
We are serving up approximatly 4.5 terrabytes of data from a Hitachi Data
Systems storage array connected to our server by fiber channel. Many of our
users are on Citrix which connects to our SAMBA server via a Gigabit
Ethernet connection. There are still others that are connecting directly
from their PCs which are connected to 10/100 ethernet which then goes to a
FDDI backbone which the Samba server is on directly.
In the last six months, we've a significant upgrade in which we have gone
from about 20% of our users being Win2k and 80% on Win9x to 90% Win2k and
10% Win9x. In the last week we have noticed some serious performance
degredations. We found ourselves in a position at one point where the box
was made unusable because we reached the maximum number of UDP Protocol
Control Blocks that the OS was configured to handle. We have since
quadrupled the number and have not had the server itself become unusable but
we are still haveing slow downs reported by users. We also turned off
oplocks which seems to have helped the sitution this morning but we are back
where we started this afternoon.
I am looking for some tuning suggestions that might be able to help this. I
am currently looking at Appendix B from using Samba for information on
Performance Tuning. I understand that this book was written for the 2.0
series of Samba but I'm assuming that it is still pertenant. Are there any
additional suggestions?
Additionally, from looking in netstat, we have noticed that there are a
large number of TCP sockets in a "CLOSE_WAIT" state. There are also a large
number of UDP sockets open but they are only listening on the loopback
interface. Is this normal?
Thank you all very much for your help and I would appreciate any help or
comments.
Chris Donovan
Lanier Worldwide
# Samba config file created using SWAT
# Names and IPs changed :)
# Global parameters
[global]
workgroup = LANIER
netbios name = SAMBA
server string = SAMBA
interfaces = 192.168.127.52/24 127.0.0.1/0 192.168.120.34/24
192.168.115.11/24
# netbios aliases = SAMBA7
bind interfaces only = No
security = DOMAIN
encrypt passwords = Yes
password server = NT1 NT2
password level = 9
use mmap = no
log file = /d/samba/logs/log.%m
include = /d/samba/cfg/pernode/smb.conf.%m
name resolve order = wins host bcast lmhosts
# shared mem size = 4194304
socket options = TCP_NODELAY SO_SNDBUF=24576 SO_RCVBUF=24576
max xmit = 65535
oplocks = no
load printers = no
domain master = no
local master = yes
preferred master = yes
os level = 10
dns proxy = No
wins server = 192.168.129.38
message command = /usr/bin/mailx -s 'message from %f on %m' nt ss <
%s ; rm %s
admin users = u1, u2, mcaffee
read only = No
create mask = 0770
force create mode = 070
security mask = 0707
directory mask = 02770
force directory mode = 02770
directory security mask = 0707
#hosts allow = ALL
map hidden = Yes
map archive = No
postexec = /bin/true
root preexec = /bin/true
root postexec = /bin/true
dos filetimes = Yes
follow symlinks = Yes
wide links = Yes
exec = touch %H/.lastlogin
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