similar to: Increasing NFS Performance

Hi all, I have a rhel 5.1 xen server with two rhel 3 ES hvm guests installed. Both rhel3 guests use an internal xen bridge (xenbr1) which it isn''t binded to any physical interface host. On this bridge throughput it is very very poor, only 2.5 Mbs. How can I increase this throughput??? Many thanks. -- CL Martinez carlopmart {at} gmail {d0t} com

Hi list (and happy new year), I'm experiencing some troubles using Samba (4.1.17 debian version) over VPN. Basically we've following setup : PC === LAN ===> VPN (WAN) ==== LAN ===> Samba file Server Copying big (say > 1MiB) files from PC to Samba file server almost always ends up with a NT_STATUS_IO_TIMEOUT error (or "a network error occured" if trying to copy from

Hi, We are running on 5.5 on a HP ProLiant DL360 G6. Kernel version is 2.6.18-194.17.1.el5 (we had also tested with the latest available kernel kernel-2.6.18-238.1.1.el5.x86_64) We running some performance tests using the "iperf" utility. We are seeing very bad and inconsistent performance on the UDP testing. The maximum we could get, was 440 Mbits/sec, and it varies from 250 to 440

I set up a 3.3 gluster volume for another sysadmin and he has added it to his cluster via automount. It seems to work initially but after some time (days) he is now regularly seeing this warning: "Too many levels of symbolic links" $ df: `/share/gl': Too many levels of symbolic links when he tries to traverse the mounted filesystems. I've been using gluster with static mounts

Hi all, I order to reach maximum performance on my centos kvm hosts I have use these params: - On /etc/grub.conf: kernel /vmlinuz-2.6.18-164.11.1.el5 ro root=LABEL=/ elevator=deadline quiet - On sysctl.conf # Special network params net.core.rmem_default = 8388608 net.core.wmem_default = 8388608 net.core.rmem_max = 16777216 net.core.wmem_max = 16777216

hi, guys: Today when i typed "mount " command on the server and found this message: .. ... 192.168.9.252: /home/share/tmp on /net/tmp/share type nfs ( rw, bg, soft,rsize=8192,wsize=8192,addr=192.168.9.252) 192.168.9.252: /home/share/tmp on /net/tmp/share type nfs ( rw, bg, soft,rsize=8192,wsize=8192,addr=192.168.9.252) 192.168.9.252: /home/share/tmp on /net/tmp/share type nfs (

Peter, we found that nfs over udp will corrupt data under very extrem load, there is no way to fix it due to the way how UDP works. TCP will not have these problems. I also wonder why the package size is only 1k. Everyone who wishes a slow connection can pass the desired options via the kernel cmdline. Everyone else prefers probably the fast mount. The defaults should look more like that: ---

Hello. We have a number of Xen 3.4.2. boxes which have constant iowaits at around 10% with spikes up to 100% when accessing data over NFS. We have been unable to nail down the issue. Any advice? System info: release : 2.6.18-194.3.1.el5xen version : #1 SMP Thu May 13 13:49:53 EDT 2010 machine : x86_64 nr_cpus : 16 nr_nodes

Hello all, I have observed a problem with a diskless PXE client I am attempting to configure. PXE/NFS/DHCP/TFTPd server is running CentOS5.1 and the Diskless workstation's root and kernel was extracted from a CentOS5.1 (custom kernel due to setting to enable Root File System support). Problem: When the diskless client boots and logs in I notice that my root user is being squashed, even if I

On Tue, Jan 14, 2014 at 10:50 PM, Gene Cumm <gene.cumm at gmail.com> wrote: > On Tue, Jan 14, 2014 at 9:28 AM, Johann Obermayr > <johann.obermayr at sigmatek.at> wrote: >> Hello, >> >> i'm using version 4.07. >> On my computer extlinux does not work. >> after debugging, i found the trouble. >> >> in the function parse_mountinfo there

In case anyone's interested, I followed up in the linux-nfs mailing list: https://marc.info/?l=linux-nfs&m=156887818618861&w=2 Thanks, Alkis On 9/15/19 10:51 AM, Alkis Georgopoulos wrote: > I think I got it. > > Both nfsmount and `mount -t nfs` now default to rsize/wsize = 1 MB. > By lowering this to 32K, all issues are gone, even with the default > timeo=7. And

I have a beefy machine (Intel dual-quad core, 16GB memory 2 x GigE) I have loaded RHEL5.1-xen on the hardware and have created two logical systems: 4 cpus, 7.5 GB memory 1 x Gige Following RHEL guidelines, I have it set up so that eth0->xenbr0 and eth1->xenbr1 Each of the two RHEL5.1 guests uses one of the interfaces and this is verified at the switch by seeing the unique MAC addresses.

Well, apparently there WAS a change on the Windows Server, which only affected new samba versions I was able to fix my issue by using this patch: https://bugzilla.samba.org/show_bug.cgi?id=12776 Can this be officially fixed please? >-----Original Message----- >From: Lange Norbert >Sent: Dienstag, 08. August 2017 10:04 >To: samba at lists.samba.org >Subject: Smbclient cant

Hi, On one of our asterisk systems that is quite busy, we are seeing the following from 'netstat -s': Udp: 17725210 packets received 36547 packets to unknown port received. 44017 packet receive errors 17101174 packets sent RcvbufErrors: 44017 <--- this When this number increases, we see SIP errors, and in particular Qualify packets are lost, and

Hello, i'm using version 4.07. On my computer extlinux does not work. after debugging, i found the trouble. in the function parse_mountinfo there was using a function get_string. in the function get_string there was a line (42) } else if (ch == '\\') { but in my mountinfo list, there was \ , but not with octal digit. so the function get_string will fail. here are some information

I have this NFS client that used to be on Red Hat 7.3. For mounting user home directories I used this line in /etc/auto.master file: /home yp:auto.home rw,rsize=8192,wsize=8192 Moved the box to CentOS 4... The format of the file changed, so I attempted something like this: /home -rw,rsize=8192,wsize=8192 yp:auto.home No habla. Doesn't work. The rsize and wsize options seems to be

I can't explain why 700 msecs aren't enough to avoid timeouts in 100 Mbps networks, but my tests verify it, so I'm writing to the list to request that you increase the default timeo to at least 30, or to 600 which is the default for `mount -t nfs`. How to reproduce: 1) Cabling: server <=> 100 Mbps switch <=> client Alternatively, one can use a 1000 Mbps switch and

I''ve locked up my dom0 a couple of times this morning copying a 3GB file from local disk to an NFS mount(neither xend nor guests running). I don''t encounter this problem on the stock CentOS 4 kernel. The machine is a PowerEdge 2850 with 2 e1000 cards - the one in use is connected to a PowerConnect 2216 10/100 switch and has negotiated 100Mbit. I''ll check if the stock

Hi, I''m doing some test on a network 10 gb nics and xen with version 3.1 i''m measuring 2.5 gb/sec from domU to an external physical machine with iperf. switching to 3.2 has reduced the measured performance to 40-50 Mb/sec. did anything change in the network interface? can someone help me? thanks _______________________________________________ Xen-users mailing list

On Mon, 29 Jan 2024 16:42:20 -0800 Peter Carlson via samba <samba at lists.samba.org> wrote: > > On 1/29/24 13:08, Rowland Penny via samba wrote: > > On Mon, 29 Jan 2024 12:51:37 -0800 > > Peter Carlson via samba<samba at lists.samba.org> wrote: > > > > > >> Just did a quick test, the big T comes after setting permissions in > >>