Chad Lewis wrote:
On Sep 12, 2006, at 4:39 PM, Celso wrote:
the proposed solution differs in one important aspect: it automatically
detects data corruption.
Detecting data corruption is a function of the ZFS checksumming feature. The
proposed solution has _nothing_ to do with detecting corruption. The difference
is in what happens when/if such bad data is detected. Without a duplicate copy,
via some RAID level or the proposed ditto block copies, the file is corrupted.
With a mirrored ZFS pool, what are the odds of losing all copies of the
[meta]data, for N disks (where N = 1, 2, etc)? I thought we understood this
pretty well, and that the answer was extremely small.
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Jeff VICTOR Sun Microsystems jeff.victor @ sun.com
OS Ambassador Sr. Technical Specialist
Solaris 10 Zones FAQ: http://www.opensolaris.org/os/community/zones/faq
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