Month: May 2006

Smokin' Mirrors. Resilvering — also known as resyncing, rebuilding, or reconstructing — is the process of repairing a damaged device using the contents of healthy devices. This is what every volume manager or RAID array must do when one of its disks dies, gets replaced, or suffers a transient outage. For a mirror, resilvering can… Continue reading Smokin' Mirrors

Database War Stories #5: craigslist. By tim Eric Scheide of craigslist offered me a stream of consciousness summary of the craigslist database setup. At a conference last year, Craig showed a slide (which helped inspire my postings about asymmetric competition [1, 2, 3]) that listed the number of employees at the top ten web sites.… Continue reading Database War Stories #5: craigslist

Database War Stories #6: O'Reilly Research. By tim In building our Research data mart, which includes data on book sales trends, job postings, blog postings, and other data sources, Roger Magoulas has had to deal with a lot of very messy textual data, transforming it into something with enough structure to put it into a… Continue reading Database War Stories #6: O'Reilly Research