From 3d3c92eea80cefe2097a531744e2212d7936a442 Mon Sep 17 00:00:00 2001 From: Eugene Grosbein Date: Mon, 12 Feb 2024 14:24:28 +0700 Subject: [PATCH] graid: MFC: unbreak Promise RAID1 with 4+ providers Fix a problem in graid implementation of Promise RAID1 created with 4+ disks. Such an array generally works fine until reboot only due to a bug in metadata writing code. Before the fix, next taste erronously created RAID1E (kind of RAID10) instead of RAID1, hence graid used wrong offsets for I/O operations. The bug did not affect Promise RAID1 arrays with 2 or 3 disks only. Reviewed by: mav (cherry picked from commit 81092e92ea5184c4eeedad58044d72cfef72dd24) --- sys/geom/raid/md_promise.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/sys/geom/raid/md_promise.c b/sys/geom/raid/md_promise.c index 0b912da2775..0aa2fe2819a 100644 --- a/sys/geom/raid/md_promise.c +++ b/sys/geom/raid/md_promise.c @@ -1765,8 +1765,9 @@ g_raid_md_write_promise(struct g_raid_md_object *md, struct g_raid_volume *tvol, meta->total_disks = vol->v_disks_count; meta->stripe_shift = ffs(vol->v_strip_size / 1024); meta->array_width = vol->v_disks_count; - if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1 || - vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) + if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1) + meta->array_width = 1; + else if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E) meta->array_width /= 2; meta->array_number = vol->v_global_id; meta->total_sectors = vol->v_mediasize / 512;