Recent content by shadowwyvern

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    Advice needed: server for 48 SSDs (professional project)

    This is the biggest appeal of the Supermicro solution. They seem to be one of the only companies that offer both a server chasis, and a 5.25 "mobile rack" that use compatible drive trays.
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    Advice needed: server for 48 SSDs (professional project)

    Indeed, Supermicro confirms they call "gross weight" the shipping weight - basically the weight of the box going out the door. The challenge is, this company wants to put the server in a shock-mounted shipping case (the ones with isolated 19" racks inside), and most of those cases weigh 50+lbs...
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    Advice needed: server for 48 SSDs (professional project)

    Thanks for the replies everyone! I'm sorry I neglected this thread for so long. I confirmed with Supermicro that the power supply in the 418E16-R1K62B2 has 50A on the 5V rail, which should be sufficient for the drives that will be populated. I also confirmed that despite different part...
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    Advice needed: server for 48 SSDs (professional project)

    Yes, I definitely confused those. I was looking for a quick answer to my concern - in retrospect 4A is very tiny :) Sorry. I suppose you have to email them for the specs on the the power supply (or rather the distribution board, since that seems to be what influences 5V availability)?
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    Advice needed: server for 48 SSDs (professional project)

    A friend recently asked me for advice on a problem he was facing at work. The company he works for has systems that record data to large numbers of SSDs, and then the SSDs get physically transferred to a server-type box to offload the data onto some other storage medium (eg, a large disk...
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    DC++ manual WAN address (uhub)

    I am running a uhub-based DC++ hub on my local network. I connect to it with a client on the same network. As a result, the hub publishes my LAN IP, and not my WAN IP. As a result, WAN clients can't connect, despite port forwards being properly configured. I have configured my WAN IP in...
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    Using "dd" and "gzip" for SSD backup

    What happens is, in lieu of an actually smart tool that understands NTFS and other filesystems, "dd" just blindly copies the drive, byte-for-byte (hence its name :)). The problem is then that backup size = disk size, not data size which is likely much smaller. An easy way around this is to...
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    Using "dd" and "gzip" for SSD backup

    Hello, I have a laptop system running Windows 8 and I need to make an image of it. Rather than mess with whatever Windows 8 provides (unless its really good?), I would like to just make a simple image of the drive using linux's "dd" run from a usb boot. The problem is, that would make the...
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    SSD without trim support - under-partition?

    Hello, I am wanting to use an SSD on a system without trim support. Can I get a similar effect to trim by significantly under-partitioning the drive? Say, for a 64GB drive, only partition 40GB? I would think this would ensure the drive's controller always has plenty of space for garbage...
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    High host CPU usage with ESXi 5.1 and pfsense 2.02

    Installed the new intel card, and am seeing no difference in CPU usage. 1627MHz to download 25Mbit of traffic on a VM with 2 vCPUs.
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    High host CPU usage with ESXi 5.1 and pfsense 2.02

    Ran a rather unscientific test regarding vmxnet2 vs e1000 ethernet adapters on the 2.1 beta. Consistent with other such tests from around the internet, I didn't see a substantial difference. I had my fileserver serving a file from its disks, a pfsense VM routing them, and then an Ubuntu VM...
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    High host CPU usage with ESXi 5.1 and pfsense 2.02

    Ironically enough, one of my motivations for virtualizing the router was to save power. The bare metal box uses 26W - the EXI box the virtualized is on uses 47W idle while running, which is a little more than the fileserver it essentially eclipsed. Further ironically, running a single core at...
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    High host CPU usage with ESXi 5.1 and pfsense 2.02

    fastforwarding does not appear to have an impact on host cpu usage for me. 3MByte/s download still consumes 50% of the host cpu according to esxtop. Thanks for the suggestion :)
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    High host CPU usage with ESXi 5.1 and pfsense 2.02

    I purchased a EXPI9402PT from ebay. Hopefully that will help - and if not I can experiment with some aggregation to my desktop. I tried giving pfsense another virtual core. It's difficult to say if there has been any benefit. With the cachefly file, I see 50% usage for the pfsense VM...
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    High host CPU usage with ESXi 5.1 and pfsense 2.02

    Looks like I'm off to ebay to find some new NICs. Those who say it works well, could I ask: 1) How much traffic are you moving? How much host CPU is used while moving this? 2) "Idle" host CPU usage - routing 150KByte of traffic, I am running at 167MHz 3) I am still suspicious that my...
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