Jenner -- ...and then Borges, Jenner Gigante (BR-Paulista Seguros) said... % % Hello David!
Hi again! % I have RAID 0+1. OK... % How can I see the inodes and increase them ? Hmmm... I forget for ext2, but it is probably in the mount or mkfs or tunefs commands. Check your man pages. I don't think you can increase inodes without destroying and recreating the filesystem :-( % Yes, I am going from ext2 to ext2. OK. % Last night I follow the steps from backup and I think because we didnīt run % a update procedure , the datafiles were not accessed and the backup finished % succesfull, but the messages : Hmmm... % Dec 31 01:00:22 dtmart kernel: __alloc_pages: 0-order allocation failed. % Dec 31 01:00:40 dtmart last message repeated 826 times % Dec 31 01:00:40 dtmart kernel: failed. That can't be good! I forgot to ask: how much RAM and swap do you have in the system, and what does top say? I searched google for 'kernel: __alloc_pages: 0-order allocation failed' and found numerous mailing list post, most relating to bigmem. I think that we can safely say that this is not a problem for cp. % % still appear on my /var/log/messages. % During the cp process the top command showed me that the kswapd and bdflush % and % cp were consuming a lot of CPU. Makes sense; you were shoveling a lot of data through the system. % % Do you know if my kernel parameters were well tuned for these copy process ? % % # Disables packet forwarding % net.ipv4.ip_forward = 0 % # Enables source route verification % net.ipv4.conf.all.rp_filter = 1 % # Disables the magic-sysrq key % kernel.sysrq = 0 % * Shared and Semaphores Parameters % kernel.shmmax=2059460000 % kernel.shmall=2059460000 % kernel.shmmni=100 % kernel.shmseg=20 % kernel.shmmin=1 % kernel.semmni=500 % kernel.semmns=1500 % kernel.semmsl=200 I'm not absolutely sure, but all of the shared memory and semaphore settings are just going to be for ordinary DB processes and not pertinent to a cp like this. I don't think that there are any knobs to bump up disk-to-disk performance, like maybe a buffer allocation size; I think that the system handles that on its own based on what resources it has. % % Thanks again and happy new year !!! And to you :-) Good luck! :-D -- David T-G * There is too much animal courage in (play) [EMAIL PROTECTED] * society and not sufficient moral courage. (work) [EMAIL PROTECTED] -- Mary Baker Eddy, "Science and Health" http://www.justpickone.org/davidtg/ Shpx gur Pbzzhavpngvbaf Qrprapl Npg!
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