Messages in this thread | | | Date | Wed, 17 Nov 1999 18:00:18 +0100 | From | Matthew Wilcox <> | Subject | Re: Ext2 defragmentation |
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On Wed, Nov 17, 1999 at 10:03:36AM -0600, danielt@digi.com wrote: > The superblock at the first 32M should always be there. > It would be the first backup with 4k blocks and the > fourth with 1k blocks (or the second with 2k blocks?).
... unless of course you have sparse superblocks turned on. As I remember, the algorithm is to put a superblock at every multiple of 3, 5, and 7:
0, 1, 3, 5, 7, 9, 25, 27, 49, 81, 125, 243, 343, ...
-- Matthew Wilcox <willy@bofh.ai> "Windows and MacOS are products, contrived by engineers in the service of specific companies. Unix, by contrast, is not so much a product as it is a painstakingly compiled oral history of the hacker subculture." - N Stephenson
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