On 04/29/2012 06:52 PM, NeilBrown wrote:
You've written a new superblock 4K in to each device, where previously here
was something. So you have probably corrupted something though we cannot
easily tell what.
Retry your experiment with --metadata=0.90. Hopefully one of those
combinations will work better. If it does, make a backup of the data you
want to keep, then I would suggest rebuilding the array from scratch.
ok, thanks, that was a huge help.
I have it setup correctly now (obvious due to the fact that I can read
the lvm configuration without any gibberish when ordered correctly).
however, now I need to figure out how to recreate the lvm appropriately.
I see the configuration "file" in at the start of the raid array (less
-f /dev/md0 which I'm including below)
I asusme there should be a way to reuse this data to recreate the lvm?
any continued advice would be appreciated, googling doesn't seem to come
up with much if one doesn't have a backup of the lvm data.
raid5 {
id = "8r27WQ-HvIw-0RQV-aksr-LJGN-DLVD-1WBg8h"
seqno = 6
status = ["RESIZEABLE", "READ", "WRITE"]
extent_size = 8192
max_lv = 0
max_pv = 0
physical_volumes {
pv0 {
id = "7P0W3p-XoPg-rCo8-HJ2G-Hfxc-UDWI-x6nQck"
device = "/dev/md0"
status = ["ALLOCATABLE"]
dev_size = 11721107456
pe_start = 384
pe_count = 1430799
}
}
logical_volumes {
data {
id = "YZvrHt-Glyr-wnj0-QzV1-qRe6-VcRH-D7wU3U"
status = ["READ", "WRITE", "VISIBLE"]
segment_count = 1
segment1 {
start_extent = 0
extent_count = 524288
type = "striped"
stripe_count = 1 # linear
stripes = [
"pv0", 0
]
}
}
image {
id = "uHOzpc-l8L7-eF5h-Fa0C-EsCS-sM6X-3GpOP0"
status = ["READ", "WRITE", "VISIBLE"]
segment_count = 1
segment1 {
start_extent = 0
extent_count = 906511
type = "striped"
stripe_count = 1 # linear
stripes = [
"pv0", 524288
]
}
}
}
}
# Generated by LVM2 version 2.02.39 (2008-06-27): Wed Aug 19 23:36:50 2009
contents = "Text Format Volume Group"
version = 1
description = ""
creation_host = "nas" # Linux nas 2.6.27-14-generic #1 SMP Fri Jul 24
22:19:33 UTC 2009 i686
creation_time = 1250739410 # Wed Aug 19 23:36:50 2009
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