shaba/lvm2
1
0
Fork 0
mirror of git://sourceware.org/git/lvm2.git synced 2024-12-21 13:34:40 +03:00
Code Releases Activity

lvconvert: adjust --stripes on raid10 convert

Browse Source 
For the time being raid10 is limited to even number of total stripes
as is and 2 data copies.  The number of stripes provided on creation
of a raid10(_near) LV with -i/--stripes gets doubled to define
that even total number of stripes (i.e. images).

Apply the same on disk adding conversions (reshapes) with
"lvconvert --stripes RaidLV" (e.g. 2 stripes = 4 images
total converted to 3 stripes = 6 images total).

Related: rhbz834579
Related: rhbz1191935
Related: rhbz1191978
This commit is contained in:
Heinz Mauelshagen 2017-03-07 21:36:03 +01:00
parent f4b30b0dae
commit 05aceaffbd
1 changed files with 5 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
lib/metadata/raid_manip.c
View File

@ -5878,7 +5878,7 @@ int lv_raid_convert(struct logical_volume *lv,
struct dm_list *allocate_pvs)
{
struct lv_segment *seg = first_seg(lv);
uint32_t stripes, stripe_size;
uint32_t stripes = new_stripes, stripe_size;
uint32_t new_image_count = seg->area_count;
uint32_t region_size = new_region_size;
uint32_t data_copies = seg->data_copies;
@ -5890,7 +5890,10 @@ int lv_raid_convert(struct logical_volume *lv,
return 0;
}
stripes = new_stripes ? : _data_rimages_count(seg, seg->area_count);
if (seg_is_raid10(seg))
stripes *= 2;
stripes = stripes ? : _data_rimages_count(seg, seg->area_count);
/* FIXME Ensure caller does *not* set wrong default value! */
/* Define new stripe size if not passed in */