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lvconvert: add segtype raid6_n_6 and conversions to/from it

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Add:
- support for segment type raid6_n_6 (striped raid with dedicated last parity/Q-Syndrome SubLVs)
- conversion support from striped/raid0/raid0_meta/raid4 to/from raid6_n_6
- related tests to lvconvert-raid-takeover.sh

Related: rhbz1366296
This commit is contained in:
Heinz Mauelshagen
2017-02-04 01:40:58 +01:00
parent 96f331fe05
commit 3673ce48e0
4 changed files with 140 additions and 21 deletions
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1
lib/raid/raid.c
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@@ -543,6 +543,7 @@ static const struct raid_type {
{ SEG_TYPE_NAME_RAID5_RA, 1, SEG_RAID5_RA },
{ SEG_TYPE_NAME_RAID5_RS, 1, SEG_RAID5_RS },
{ SEG_TYPE_NAME_RAID6, 2, SEG_RAID6 },
{ SEG_TYPE_NAME_RAID6_N_6, 2, SEG_RAID6_N_6 },
{ SEG_TYPE_NAME_RAID6_NC, 2, SEG_RAID6_NC },
{ SEG_TYPE_NAME_RAID6_NR, 2, SEG_RAID6_NR },
{ SEG_TYPE_NAME_RAID6_ZR, 2, SEG_RAID6_ZR }