similar to: Infiniband performance issues answered?

I would like to give a probability distribution function of a function of (x,y) on the half-plane y>0, and a constant 0<c<1 and I would like to know the c percentile of the marginal distribution of x. I have tried along the lines of the following but I keep getting errors: # SIMPLIFIED PROBLEM # The plan is to solve for the .975 percentile "xc" of the marginal x distribution

I have 2 similar servers. Since upgrading one from CentOS 5.5 to 6, disk write performance in kvm guest VMs is much worse. There are many, many posts about optimising kvm, many mentioning disk performance in CentOS 5 vs 6. I've tried various changes to speed up write performance, but northing's made a significant difference so far: - Install virtio disk drivers in guest - update the

I am attempting to use libvirtd/kvm on CentOS 5.latest to migrate a SCO OpenServer 5.0.6a VM from the old VMware server. I have converted the multiple vmdk disk files to a single file, then used qemu-img convert to create files for libvirtd, both qcow2 and raw formats. After many attempts to get this working I'm up against what appears to be a brick wall. + The VMware VMs are using

With the current talk on bonding, I have a few questions of my own. I'm setting up a KVM host with CentOS 6.3 x86_64 on which I'd like to attach the VMs to a bonded interface. My target setup is one where two GigE NICs are bonded and then the KVM bridge interface is attached to the bonded interface. Initially I tried to use the balance-alb mode (mode6), but had little luck (receiving

Configure fails at testing for openib - anyone an idea? Thanks Michaell configure:10034: checking whether to enable OpenIB gen2 support configure:10138: cp conftest.c build && make -d modules CC=gcc -f /home/mhebenst/lustre-2.3.0/build/Makefile LUSTRE_LINUX_CONFIG=/adm in/extra/linux-2.6.32-358.2.1.el6.x86_64.crt1/.config LINUXINCLUDE= -I/usr/local/ofed/3.5/src/compat-rdma-3.5/include

We seemed to have it a stumbling block when building with the above (supported) versions. Our process... 1. Start with stock rhel5 2.6.18-8.1.14 source tree 2. Configure InfiniBand support out of the the kernel (we will build OFED separately). 3. Apply the 1.6.4.2 kernel patches to the kernel source. 4. Build the kernel. 5. Build OFED 1.2 against the patched kernel 6. Build Lustre using

Hello, I am having trouble installing the server modules for lustre 2.1.4 and use mellanox''s OFED distribution so we may use infiniband. Would you folks look at my procedure and results below and let me know what you think? Thanks very much! The mellanox ofed installation builds and installs some kernel modules too, so I used this method to ensure OFED compiled against the correct

It seems that lustre puts its modules in /lib/modules/2.6.16.21-0.8-default despite the fact that my kernel is 2.6.16.21-0.8-smp ! uname -a Linux n32 2.6.16.21-0.8-smp #4 SMP Sun Sep 24 08:47:30 BST 2006 i686 i686 i386 GNU/Linux make[3]: Nothing to be done for `install-exec-am''. /bin/sh ../../mkinstalldirs /lib/modules/2.6.16.21-0.8-default/kernel/fs/lustre /usr/bin/install -c -m 644

I am trying to compile lustre-1.6.6 against ofed-1.4 using following configure options : ./configure --disable-server --with-o2ib=/usr/src/ofa_kernel-1.4 --with-linux=/usr/src/kernels/2.6.18-92.el5-x86_64 I am getting following errors: configure: error: can''t compile with OpenIB gen2 headers under /usr/src/ofa_kernel-1.4 Is it that lustre-1.6.6 will only work with ofed-1.3. or I am

Hello, I see a reproducable panic when doing ibping and aborting it with ^C. My setup is two machines with Mellanox Infinihost III HCAs (one Linux one FreeBSD) connected back-to-back. Details below. I can upload 2 crash dumps, if this is useful. For some reason the port doesn't become ACTIVE, so no packets arrive, but that is probably unrelated. % uname -a FreeBSD cosel.inf.tu-dresden.de

What is the process for integrating a Lustre+SAMFS solution into an existing customer environment. The plan is to have CRS build the Lustre component, but Lustre and SAMFS will need to configured and integrated into the customer computing environment. I am very familiar with the SAMFS integration, but not Lustre integration. Do we have resources in PS to provide the integration? Is this

Hi, Running samba sernet 4.1.6-7, I've noticed the load avg slowly / steadily creeping up (.e.g > 100). I'm now noticing that several smbd processes are at 100%. I don't actually notice that much bandwidth usage on the system (e.g. iptraf/iftop). Any idea what's causing this? Restarting smbd helps for a few days, but then the high load avg returns. Thanks, Sabuj

Hi, I've been migrating data from an old striped 3.0.x gluster install to a 3.3 beta install. I copied all the data to a regular XFS partition (4K blocksize) from the old gluster striped volume and it totaled 9.2TB. With the old setup I used the following option in a "volume stripe" block in the configuration file in a client : volume stripe type cluster/stripe option

Hi all, Has anyone installed mellanox ofed on linux kernel 3.x? Regards

Hi, Anyone know if the 1024 char limit for auth.allow still exists in the latest production version (seems to be there in 3.2.5). Also anyone know if the new versions check if auth.allow has been updated without having to restart glusterd? Is there anyway to restart glusterd without killing it and restarting the process, is kill -1 (HUP) possible with it (also with the version i'm running?)

I'm about to do some testing with a an OSX 10.9 client connected to sernet samba 4.1.5 to see what things work and don't both from the finder and from the terminal with unix extensions = yes and no. Does anyone know of any show stopping issues that occur with unix extensions = yes and the latest samba (or 3.6.x, or 4.0.x a) and the latest OSX (or latest update with 10.7 & 10.8)?

Hi all, At long last, Lustre 1.6.5 is available on the Sun Download Center Site. http://www.sun.com/software/products/lustre/get.jsp The change log and release notes can be read here: http://wiki.lustre.org/index.php?title=Change_Log_1.6 Thank you for your assistance; as always, you can report issues via Bugzilla (https://bugzilla.lustre.org/) Happy downloading! -- The Lustre Team --

Hi all, At long last, Lustre 1.6.5 is available on the Sun Download Center Site. http://www.sun.com/software/products/lustre/get.jsp The change log and release notes can be read here: http://wiki.lustre.org/index.php?title=Change_Log_1.6 Thank you for your assistance; as always, you can report issues via Bugzilla (https://bugzilla.lustre.org/) Happy downloading! -- The Lustre Team --

Hi, I've got this strange problem where a striped endpoint will crash when I try to use cp to copy files off of it but not when I use rsync to copy files off: [user at gluster5 user]$ cp -r Python-2.6.4/ ~/tmp/ cp: reading `Python-2.6.4/Lib/lib2to3/tests/data/fixers/myfixes/__init__.py': Software caused connection abort cp: closing

Hello I''ve noticed that Lustre network error, especially LND errors, are considered as maskable errors. That means that on a production node, where debug mask is 0, those specific errors won''t be displayed if they happened. Does that mean that they are harmless? Do upper-layers resend their RPC/packet if LNDs report an error? When, in my case, o2iblnd says something like