search for: dledford

Hi Folks - Using CentOS on a server destined to have a dozen SATA drives in it. The server is fine, raid 5 is set up on groups of 4 SATA drives. Today we decide to disconnect one SATA drive to simulate a failure. The box trucked on fine... a little too fine. We waited some minutes but no problem was visible in /proc/mdstat or in /var/log/messages or on the console. I ran mdadm --monitor

Greetings. Every couple of day's I have a web server running CentOS 4.1 with all the patches as of Saturday that is crashing every couple of day's. Usualy between 4-6 am. The Console shows: Double Fault gdt at xxxx memory Double Falut tss at xxxx memory On reboot all is fine. It's running apache and DNS no SSH access. It passes memory test Memtest86. I can provide more

To Harry Mangalam about Gluster/RDMA: make sure these modules are loaded # modprobe -v rdma_ucm # modprobe -v ib_uverbs # modprobe -v ib_ucm To run the subnet manager # modprobe -v ib_umad Make sure libibverbs and (libmlx4 or libmthca) RPMs are installed. I don't understand why they appropriate modules aren't loaded automatically. Could put something in /etc/modprobe.d/ to make this

...md, I decided I'd like to go with RAID6 (since md is less tolerant of marginal drives than is 3ware). I did some benchmarking and was getting decent speeds with a 128KiB chunksize. So the next step was failure testing. First, I fired off memtest.sh as found at <http://people.redhat.com/dledford/memtest.html>. Then, I did 'mdadm /dev/md0 -f /dev/sdo1', and it started to rebuild as it should. I cranked up /proc/sys/dev/raid/speed_limit_min to 15000 so that it would reconstruct in a decent amount of time (the default of 1000 was leading to a 53 hour estimate for the recovery...

greetings would someone please point me to an excellent server exercising, stressing, and/or testing program that will run on centos 4? i want one that will not out and out destroy a machine so to speak... ...meaning testing is one thing, yet pounding a box in the hard drive department over and above the cause or unnecessarily does not appeal to me. fyi the box i want to test/stress this time

I recently added a Seagate 400Gb SATA drive to my system, and it has been behaving strangely since I put it in. for one thing, the BIOS S.M.A.R.T. came up with a warning the last time I booted with it enabled, saying that I should backup my data and replace the disk (!). I still have not made any irreversible data transfers to this drive, and I have some time yet to take it back, but I'd

...r@gmail.com> Dongxiao Xu <dongxiao.xu@intel.com> Dor Shaish <dor.shaish@intel.com> Dotan Barak <dotanb@dev.mellanox.co.il> Dotan Barak <dotanb@mellanox.com> Doug Anderson <dianders@chromium.org> Doug Goldstein <cardoe@cardoe.com> Doug Ledford <dledford@redhat.com> Douglas Bagnall <douglas@paradise.net.nz> Douglas Gilbert <dgilbert@interlog.com> Douglas Leung <douglas@mips.com> Drew Moseley <drew_moseley@mentor.com> Dror Cohen <dror@liveu.tv> Du Changbin <changbinx.du@intel.com> Du Yan <yanx....

...r@gmail.com> Dongxiao Xu <dongxiao.xu@intel.com> Dor Shaish <dor.shaish@intel.com> Dotan Barak <dotanb@dev.mellanox.co.il> Dotan Barak <dotanb@mellanox.com> Doug Anderson <dianders@chromium.org> Doug Goldstein <cardoe@cardoe.com> Doug Ledford <dledford@redhat.com> Douglas Bagnall <douglas@paradise.net.nz> Douglas Gilbert <dgilbert@interlog.com> Douglas Leung <douglas@mips.com> Drew Moseley <drew_moseley@mentor.com> Dror Cohen <dror@liveu.tv> Du Changbin <changbinx.du@intel.com> Du Yan <yanx....

...r@gmail.com> Dongxiao Xu <dongxiao.xu@intel.com> Dor Shaish <dor.shaish@intel.com> Dotan Barak <dotanb@dev.mellanox.co.il> Dotan Barak <dotanb@mellanox.com> Doug Anderson <dianders@chromium.org> Doug Goldstein <cardoe@cardoe.com> Doug Ledford <dledford@redhat.com> Douglas Bagnall <douglas@paradise.net.nz> Douglas Gilbert <dgilbert@interlog.com> Douglas Leung <douglas@mips.com> Drew Moseley <drew_moseley@mentor.com> Dror Cohen <dror@liveu.tv> Du Changbin <changbinx.du@intel.com> Du Yan <yanx....

...r@gmail.com> Dongxiao Xu <dongxiao.xu@intel.com> Dor Shaish <dor.shaish@intel.com> Dotan Barak <dotanb@dev.mellanox.co.il> Dotan Barak <dotanb@mellanox.com> Doug Anderson <dianders@chromium.org> Doug Goldstein <cardoe@cardoe.com> Doug Ledford <dledford@redhat.com> Douglas Bagnall <douglas@paradise.net.nz> Douglas Gilbert <dgilbert@interlog.com> Douglas Leung <douglas@mips.com> Dr. Tilmann Bubeck <t.bubeck@reinform.de> Drew Moseley <drew_moseley@mentor.com> Dror Cohen <dror@liveu.tv> Du Changbin...

...r@gmail.com> Dongxiao Xu <dongxiao.xu@intel.com> Dor Shaish <dor.shaish@intel.com> Dotan Barak <dotanb@dev.mellanox.co.il> Dotan Barak <dotanb@mellanox.com> Doug Anderson <dianders@chromium.org> Doug Goldstein <cardoe@cardoe.com> Doug Ledford <dledford@redhat.com> Douglas Bagnall <douglas@paradise.net.nz> Douglas Gilbert <dgilbert@interlog.com> Douglas Leung <douglas@mips.com> Dr. Tilmann Bubeck <t.bubeck@reinform.de> Drew Moseley <drew_moseley@mentor.com> Dror Cohen <dror@liveu.tv> Du Changbin...

...r@gmail.com> Dongxiao Xu <dongxiao.xu@intel.com> Dor Shaish <dor.shaish@intel.com> Dotan Barak <dotanb@dev.mellanox.co.il> Dotan Barak <dotanb@mellanox.com> Doug Anderson <dianders@chromium.org> Doug Goldstein <cardoe@cardoe.com> Doug Ledford <dledford@redhat.com> Douglas Bagnall <douglas@paradise.net.nz> Douglas Gilbert <dgilbert@interlog.com> Douglas Leung <Douglas.Leung@imgtec.com> Douglas Leung <douglas@mips.com> Dr. Tilmann Bubeck <t.bubeck@reinform.de> Drew Moseley <drew_moseley@mentor.com>...

...r@gmail.com> Dongxiao Xu <dongxiao.xu@intel.com> Dor Shaish <dor.shaish@intel.com> Dotan Barak <dotanb@dev.mellanox.co.il> Dotan Barak <dotanb@mellanox.com> Doug Anderson <dianders@chromium.org> Doug Goldstein <cardoe@cardoe.com> Doug Ledford <dledford@redhat.com> Douglas Bagnall <douglas@paradise.net.nz> Douglas Gilbert <dgilbert@interlog.com> Douglas Leung <Douglas.Leung@imgtec.com> Douglas Leung <douglas@mips.com> Dr. Tilmann Bubeck <t.bubeck@reinform.de> Drew Moseley <drew_moseley@mentor.com>...

...intel.com> Dor Shaish <dor.shaish@intel.com> Dotan Barak <dotanb@dev.mellanox.co.il> Dotan Barak <dotanb@dev.mellanox.com> Dotan Barak <dotanb@mellanox.com> Doug Anderson <dianders@chromium.org> Doug Goldstein <cardoe@cardoe.com> Doug Ledford <dledford@redhat.com> Douglas Bagnall <douglas@paradise.net.nz> Douglas Gilbert <dgilbert@interlog.com> Douglas Leung <Douglas.Leung@imgtec.com> Douglas Leung <douglas@mips.com> Dr. Tilmann Bubeck <t.bubeck@reinform.de> Dragos Foianu <dragos.foianu@gmail.com&gt...

...intel.com> Dor Shaish <dor.shaish@intel.com> Dotan Barak <dotanb@dev.mellanox.co.il> Dotan Barak <dotanb@dev.mellanox.com> Dotan Barak <dotanb@mellanox.com> Doug Anderson <dianders@chromium.org> Doug Goldstein <cardoe@cardoe.com> Doug Ledford <dledford@redhat.com> Douglas Bagnall <douglas@paradise.net.nz> Douglas Gilbert <dgilbert@interlog.com> Douglas Leung <Douglas.Leung@imgtec.com> Douglas Leung <douglas@mips.com> Dr. Tilmann Bubeck <t.bubeck@reinform.de> Dragos Foianu <dragos.foianu@gmail.com&gt...