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10 Commits

Author SHA1 Message Date
Alexander Motin
c89d2fbe18 Add global and per-module sysctls/tunables to enable/disable metadata taste. 
That should help to handle some cases when disk has some RAID metadata that
should be ignored, especially during boot.

MFC after:	3 days
 2012-09-13 13:27:09 +00:00
Alexander Motin
14f9f25ba0 Remove some hardcoded constants from code. 2012-05-06 16:41:27 +00:00
Alexander Motin
eb3b1cd0de Plug small memory leaks. 2012-05-06 12:55:20 +00:00
Alexander Motin
8f12ca2ee1 Add support for RAID5R. Slightly improve support for RAIDMDF. 2012-05-06 11:32:36 +00:00
Alexander Motin
86b0366909 Fix bug causing memory corruption and panics with big-endian metadata. 2012-05-04 08:59:19 +00:00
Alexander Motin
8df8e26adc Add optional -o argument to the graid label to specify some metadata 
format options. Use it for specifying byte order for the DDF metadata:
big-endian defined by specification and little-endian used by Adaptec.
 2012-05-03 05:32:56 +00:00
Alexander Motin
d525d87560 Improve spare disks support. Unluckily, for some reason Adaptec 1430SA 
RAID BIOS doesn't want to understand spare disks created by graid. But
at least spares created by BIOS are working fine now.
 2012-05-01 18:00:31 +00:00
Alexander Motin
2b9c925ff0 Implement volume deletion if disk has more then one partition. 2012-05-01 09:21:21 +00:00
Alexander Motin
47e980965c Improve DDF metadata writing. 2012-05-01 08:19:29 +00:00
Alexander Motin
00f32ecbd0 Add to GEOM RAID class module, supporting the DDF metadata format, as 
defined by the SNIA Common RAID Disk Data Format Specification v2.0.

Supports multiple volumes per array and multiple partitions per disk.
Supports standard big-endian and Adaptec's little-endian byte ordering.
Supports all single-layer RAID levels. Dual-layer RAID levels except
RAID10 are not supported now because of GEOM RAID design limitations.

Some work is still to be done, but the present code already manages basic
interoperation with RAID BIOS of the Adaptec 1430SA SATA RAID controller.

MFC after:	1 month
Sponsored by:	iXsystems, Inc.
 2012-04-30 17:53:02 +00:00