Tags: mediasmart

09/18/09

  06:44:48 pm, by The Dreamer   , 161 words  
Categories: Hardware, Momitsu V880N, Storage

iozone read/write performance of RAID1 vg's

Was discussion storage speeds with some friends over lunch....so I wondered if I could get some data comparing the performance.

vg0 is are two internal SATA drives, each on their own SATA channel, being mirrored. vg1 is the SANS Digital pair of drives, sharing a SATA channel via Port Multiplication, being mirrored.

Guess the graphs show that the internal drives are faster for small files....though for larger the difference goes away, so that things are comparable.

As it is....vg1 is mainly my MMCVideo filesystem - MMC (Momitsu Media Center). So, the files tend to be large and sequentially read/written.

Meanwhile, I've already removed the old MMCVideo logical volume from vg0 and doubled the size of /home. Even though now that I think of it, there's stuff under /home that might better go in its own logical volume(s)....now that I have room to create them.

Or later go on that HP MediaSmart Server that I've been dreaming of adding to my network.... :hmm:

Now instead of subjecting some poor random forum to a long rambling thought, I will try to consolidate those things into this blog where they can be more easily ignored profess to be collected thoughts from my mind.

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