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* Update copyright in files changed this year.pjd2005-02-161-1/+1
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* - Fix 'rebuild' command - it can no longer relay on retaste eventpjd2005-01-041-1/+14
| | | | | | | | (we ignore it). - Remove code used for handling spoil events, as spoiling is not possible anymore, because we keep consumers open for writing all the time. MFC after: 4 days
* - Add genid field to the metadata which will allow to improve reliability a bit.pjd2004-12-251-3/+4
| | | | | | | | | | | | | | | After this change, when component is disconnected because of an I/O error, it will not be connected and synchronized automatically, it will be logged as broken and skipped. Autosynchronization can occur, when component is disconnected (on orphan event) and connected again - there were no I/O error, so there is no need to not connected the component, but when there were writes while it wasn't connected, it will be synchronized. This fix cases, when component is disconnected because of I/O error and can be connected again and again. - Bump version number. - Implement backward compatibility mechanism. After this change when metadata in old version is detected, it is automatically upgraded to the new (current) version.
* Warn the user if we are not going to use whole provider space.pjd2004-08-281-4/+12
| | | | Requested by: Michael Handler <handler@grendel.net>
* Don't allow to insert providers, which are too small.pjd2004-08-281-0/+4
| | | | Reported by: Michael Handler <handler@grendel.net>
* Implementation of 'verify reading' algorithm, which uses parity data forpjd2004-08-221-2/+34
| | | | | | | | verification of regular data when device is in complete state. On verification error, EIO error is returned for the bio and sysctl kern.geom.raid3.stat.parity_mismatch is increased. Suggested by: phk
* Implement new reading algorithm, which will use parity component for readingpjd2004-08-211-5/+29
| | | | | | | | | | | | | | | | | | | | | | | | as well, even if device is in complete state. I observe 40% of speed-up with this option for random read operations, but slowdown for sequential reads. Basically, without this option reading from a RAID3 device built from 5 components (c0-c4) looks like this: Request no. Used components 1 c0+c1+c2+c3 2 c0+c1+c2+c3 3 c0+c1+c2+c3 With the new feature: Request no. Used components 1 c0+c1+c2+c3 2 (c1^c2^c3^c4)+c1+c2+c3 3 c0+(c0^c2^c3^c4)+c2+c3 4 c0+c1+(c0^c1^c3^c4)+c3 5 c0+c1+c2+(c0^c1^c2^c4) 6 c0+c1+c2+c3 [...]
* Introduce GEOM RAID3 class, i.e. kernel module, which implements RAID3pjd2004-08-161-0/+484
transformation and graid3(8) userland utility, which can be used for configuration. No manual page yet, sorry. Hardware provided by: Daniel Seuffert
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