39 lines
1.4 KiB
Groff
39 lines
1.4 KiB
Groff
Subject: ANNOUNCE: mdadm 3.1.1 - A tool for managing Soft RAID under Linux
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I am pleased to announce the availability of
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mdadm version 3.1.1
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It is available at the usual places:
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countrycode=xx.
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http://www.${countrycode}kernel.org/pub/linux/utils/raid/mdadm/
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and via git at
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git://neil.brown.name/mdadm
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http://neil.brown.name/git?p=mdadm
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This is a bugfix release over 3.1, which was withdrawn due to serious
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bugs. So it might be best to ignore 3.1 and say that this is a significant
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feature release over 3.0.x
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Significant changes are:
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- RAID level conversion between RAID1, RAID5, and RAID6 are
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possible were the kernel supports it (2.6.32 at least)
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- online chunksize and layout changing for RAID5 and RAID6
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where the kernel supports it.
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- reduce the number of devices in a RAID4/5/6 array.
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- The default metadata is not v1.1. This metadata is stored at the
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start of the device so is safer in many ways but could interfere with
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boot loaded. The old default (0.90) is still available and fully
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supported.
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- The default chunksize is now 512K rather than 64K. This seems more
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appropriate for modern devices.
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- The default bitmap chunksize for internal bitmaps is now at least
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64Meg as fine grained bitmaps tend to impact performance more for
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little extra gain.
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This release is believed to be stable and you should feel free to
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upgrade to 3.1.1.
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NeilBrown 19th November 2009
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