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A Look at Linux 3.1 (linux.com)
41 points by Tsiolkovsky on Oct 24, 2011 | hide | past | favorite | 4 comments


The article doesn't go into much detail about the UNAME26 personality to (optionally) report a 2.6 kernel version number. Here's the skinny: http://kernelnewbies.org/Linux_3.1#head-663d1f135c18d10f111f...

Just for laughs: http://www.omgubuntu.co.uk/2011/09/linux-logo-change-version...




OMG.. There's something really exciting in this release that I've been waiting for:

"The kernel code for software RAID now offers bad block management for RAID levels 1, 4, 5 and 6. This detects and avoids known bad areas on the RAID disks (for example 1, 2, 3). Dm-crypt is now able to forward discard commands to the underlying disk. This is useful for SSDs, as it allows them to be informed of freed blocks via ATA trim, improving both speed and lifespan."

AFAIK, this is the first time you can configure SSDs into a RAID and then have that configuration utilize TRIM.




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