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12 Nov 09

Use More Than 3GB Of RAM In Ubuntu Karmic Koala 32bit ~ Web Upd8

Note: I needed to install the Kernel and install the headers to make this work.

www.webupd8.org/...than-3gb-of-ram-in-ubuntu.html - Preview

linux 64Bit Howto 4Gb

11 Nov 09

Asbestos FAQ (-)

  • If the pipe insulation is in good condition, and there is
    little or no chance of it being disturbed, it is probably best to
    leave it in place. If the pipe insulation is slightly damaged, it
    can usually be repaired or encapsulated using various methods.
    Often, there is less risk repairing the material than removing it.
    EPA does not regulate the removal and disposal of asbestos
    containing material from privately owned single family residences.
  • If the asbestos is in an unregulated structure, it is not
    subject to the regulations and therefore a specialist is not
    required to remove it

Asbestos Abatement: A Primer (-)

  • Until recently, many experts
    recommended that all asbestos-containing materials be removed from buildings
    as a matter of course. Now the epa and others suggest that the material can
    remain in place if it is in good condition, provided there are no compelling
    reasons to remove it, such as a renovation project or plumbing alterations.
  • Do not, under any circumstances,
    remove asbestos yourself. Asbestos is highly dangerous when it is airborne.
    It is far more dangerous to remove asbestos improperly than to leave it alone,
    no matter what its condition.
03 Nov 09

ZFS Deduplication : Jeff Bonwick's Blog (-)

  • ZFS now has built-in deduplication.
  • Deduplication is the process of eliminating duplicate copies of data.
    Dedup is generally either file-level, block-level, or byte-level.
    Chunks of data -- files, blocks, or byte ranges -- are checksummed
    using some hash function that uniquely identifies data with very high
    probability. When using a secure hash like SHA256, the probability of a
    hash collision is about 2^-256 = 10^-77
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