Messages in this thread | | | Date | Fri, 17 Oct 2003 10:15:42 +0200 | From | "Ihar 'Philips' Filipau" <> | Subject | Re: Transparent compression in the FS |
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Jeff Garzik wrote: > Val Henson wrote: >> of many kinds of hardware errors. Further analysis shows that this >> approach is not as risk-free as it seems at first glance." > > > I'm curious if anyone has done any work on using multiple different > checksums? For example, the cost of checksumming a single block with > multiple algorithms (sha1+md5+crc32 for a crazy example), and storing
With sha1 you probably have 8-9 nines reliability. You can improve this - but still adding nines doesn't mean it (reliability) becomes 100%.
my 0.02c.
-- Ihar 'Philips' Filipau / with best regards from Saarbruecken. -- "... and for $64000 question, could you get yourself vaguely familiar with the notion of on-topic posting?" -- Al Viro @ LKML
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