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Type: Posts; User: jvandenbroek

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  1. Replies
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    This problem is still a problem with version...

    This problem is still a problem with version 6.0up80.8101.5626 64bit. The diskIONRead and diskIONWritten max out too fast, as soon as they hit the 32-bit limit, it's over. Please update them to...
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    An option for changing the I/O scheduler per...

    An option for changing the I/O scheduler per block device would be nice. Not sure if this is already possible, couldn't find it. Also not sure how to check the current selected scheduler, this is...
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    Deadline I/O scheduler

    Hello,

    AFAIK Open-E uses the default CFQ I/O scheduler and I was wondering if there is some way to change that to deadline (per array or system-wide). DRBD seems to benefit greatly from this with...
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    Excuse me for hijacking this old thread,...

    Excuse me for hijacking this old thread, hopefully that's allowed, because I'd like to ask the exact same question. I've been reading some blogs like this one:...
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    Hi Jens, Thanks, indeed this diagram is't...

    Hi Jens,

    Thanks, indeed this diagram is't about CPU utilization. All other diagrams aren't showing any peaks, CPU usage is even scarely low (1% user, 1% nice, 1% system over the whole day, which...
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    Hourly spikes on load

    Hello,

    We've just put two Open-E systems with iSCSI failover in (semi) production, the actual load of the running servers is really low right now. However, when I look at both our systems, there...
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    But using File I/O with plenty of RAM and fast...

    But using File I/O with plenty of RAM and fast enough CPU (Xeon QC) should benefit from the filesystem caching to improve read speed? So I don't understand how Block I/O would be faster than File I/O...
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