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[linux-lvm] Replace defective disc from non RAID LVM



Hi!

This question has probably been answered a few times, but it's prooving
difficult to get a definitive answer from google, the howto or the mailing
lists.

Anyone want to help me?

The situation:

I've got a 2T LVM consisting of 14 individual IDE discs of varying sizes.
There is no raid or mirroring.
I'm not sure of the configuration (striped or other) but will include the
"metadata" later in this email. I just set it up, and have been forced to
fill it up everytime a disc died on me (something allways went wrong
trying to restore). Not a big problem, but a bit tidious ;)

Now, a disc have died on me again, a 120G disc, and the question is:

How can i restore the whole LVM minus the data on the 120G disc?

I'll loose 120G or more, but would like to keep whatever
possible.

The file system used is reiserfs, the files are mainly large 300mb+ files,
i have not run any filesystem checks after the disk failed, i would like a
step by step guide if possible :)

METADATA:

# Generated by LVM2: Mon Oct  3 19:01:03 2005

contents = "Text Format Volume Group"
version = 1

description = "Created *after* executing 'lvextend -L+672G /dev/vg1/lv1'"

creation_host = "philos"	# Linux philos 2.4.26-1-686-smp #1 SMP Tue Aug 24 13:53:22 JST 2004 i686
creation_time = 1128358863	# Mon Oct  3 19:01:03 2005

vg1 {
	id = "6t7WDD-LNua-VKM4-L0xS-Sr5J-snmU-DGozOI"
	seqno = 8
	status = ["RESIZEABLE", "READ", "WRITE"]
	extent_size = 33554432		# 16 Gigabytes
	max_lv = 0
	max_pv = 0

	physical_volumes {

		pv0 {
			id = "X1ZHJP-Su7u-8De3-JmA5-cIkT-sw5H-7oDU0G"
			device = "/dev/hdb"	# Hint only

			status = ["ALLOCATABLE"]
			pe_start = 384
			pe_count = 7	# 112 Gigabytes
		}

		pv1 {
			id = "G8w4tV-sPzm-b42d-QSfY-0RJ5-04wx-Y00BBo"
			device = "/dev/hdc"	# Hint only

			status = ["ALLOCATABLE"]
			pe_start = 384
			pe_count = 5	# 80 Gigabytes
		}

		pv2 {
			id = "2OS2Du-RxsO-fPtK-Khtx-yc9M-McIt-eKMIFD"
			device = "/dev/hdd"	# Hint only

			status = ["ALLOCATABLE"]
			pe_start = 384
			pe_count = 4	# 64 Gigabytes
		}

		pv3 {
			id = "DTmd0o-vxQm-LwGX-VgtF-ntOX-Nw4j-sMdz20"
			device = "/dev/hdh"	# Hint only

			status = ["ALLOCATABLE"]
			pe_start = 384
			pe_count = 9	# 144 Gigabytes
		}

		pv4 {
			id = "rvt9Tm-36Hq-NLZ7-FLwR-3Hxc-9sZZ-sLxt53"
			device = "/dev/hdf"	# Hint only

			status = ["ALLOCATABLE"]
			pe_start = 384
			pe_count = 9	# 144 Gigabytes
		}

		pv5 {
			id = "rAmS3s-yD0F-WZF5-Wi9Z-ejbe-edTF-CUhdvU"
			device = "/dev/hdg"	# Hint only

			status = ["ALLOCATABLE"]
			pe_start = 384
			pe_count = 9	# 144 Gigabytes
		}

		pv6 {
			id = "6vd1kF-O2CH-Zrmb-O19b-7T9L-jHXi-rmYMxB"
			device = "/dev/hdi"	# Hint only

			status = ["ALLOCATABLE"]
			pe_start = 384
			pe_count = 6	# 96 Gigabytes
		}

		pv7 {
			id = "DFVJxw-mAvr-B0Gx-Ck5w-90db-ZWiS-vaK5Au"
			device = "/dev/hdj"	# Hint only

			status = ["ALLOCATABLE"]
			pe_start = 384
			pe_count = 6	# 96 Gigabytes
		}

		pv8 {
			id = "Cokdd5-LEN9-DZUr-Mmk6-Q0jF-nZCn-eSonf8"
			device = "/dev/hdk"	# Hint only

			status = ["ALLOCATABLE"]
			pe_start = 384
			pe_count = 6	# 96 Gigabytes
		}

		pv9 {
			id = "41fnQg-jitr-qJ6z-4Aes-4gd9-oTZL-X8ujZF"
			device = "/dev/hdl"	# Hint only

			status = ["ALLOCATABLE"]
			pe_start = 384
			pe_count = 9	# 144 Gigabytes
		}

		pv10 {
			id = "2r7VTJ-dXWv-33U4-rv2j-71ib-bGV2-0g4Y1q"
			device = "/dev/cdrom"	# Hint only

			status = ["ALLOCATABLE"]
			pe_start = 384
			pe_count = 11	# 176 Gigabytes
		}

		pv11 {
			id = "XIZ6Ch-0rw4-4OIy-8IzW-0lko-k5ea-psWYhO"
			device = "/dev/hdm"	# Hint only

			status = ["ALLOCATABLE"]
			pe_start = 384
			pe_count = 14	# 224 Gigabytes
		}

		pv12 {
			id = "T1taAR-qp0L-Ao26-k9cK-UUfu-yLZB-EbLBOP"
			device = "/dev/hdn"	# Hint only

			status = ["ALLOCATABLE"]
			pe_start = 384
			pe_count = 14	# 224 Gigabytes
		}

		pv13 {
			id = "ifZOsO-3va6-LNgl-oH42-OOdr-75Nz-E5h5HJ"
			device = "/dev/hdo"	# Hint only

			status = ["ALLOCATABLE"]
			pe_start = 384
			pe_count = 14	# 224 Gigabytes
		}
	}

	logical_volumes {

		lv1 {
			id = "a6tDgq-JBDo-MuIx-20n8-6h5o-mgCF-rDt2bW"
			status = ["READ", "WRITE", "VISIBLE"]
			segment_count = 14

			segment1 {
				start_extent = 0
				extent_count = 7	# 112 Gigabytes

				type = "striped"
				stripe_count = 1	# linear

				stripes = [
					"pv0", 0
				]
			}
			segment2 {
				start_extent = 7
				extent_count = 5	# 80 Gigabytes

				type = "striped"
				stripe_count = 1	# linear

				stripes = [
					"pv1", 0
				]
			}
			segment3 {
				start_extent = 12
				extent_count = 4	# 64 Gigabytes

				type = "striped"
				stripe_count = 1	# linear

				stripes = [
					"pv2", 0
				]
			}
			segment4 {
				start_extent = 16
				extent_count = 9	# 144 Gigabytes

				type = "striped"
				stripe_count = 1	# linear

				stripes = [
					"pv3", 0
				]
			}
			segment5 {
				start_extent = 25
				extent_count = 9	# 144 Gigabytes

				type = "striped"
				stripe_count = 1	# linear

				stripes = [
					"pv4", 0
				]
			}
			segment6 {
				start_extent = 34
				extent_count = 9	# 144 Gigabytes

				type = "striped"
				stripe_count = 1	# linear

				stripes = [
					"pv5", 0
				]
			}
			segment7 {
				start_extent = 43
				extent_count = 6	# 96 Gigabytes

				type = "striped"
				stripe_count = 1	# linear

				stripes = [
					"pv6", 0
				]
			}
			segment8 {
				start_extent = 49
				extent_count = 6	# 96 Gigabytes

				type = "striped"
				stripe_count = 1	# linear

				stripes = [
					"pv7", 0
				]
			}
			segment9 {
				start_extent = 55
				extent_count = 6	# 96 Gigabytes

				type = "striped"
				stripe_count = 1	# linear

				stripes = [
					"pv8", 0
				]
			}
			segment10 {
				start_extent = 61
				extent_count = 9	# 144 Gigabytes

				type = "striped"
				stripe_count = 1	# linear

				stripes = [
					"pv9", 0
				]
			}
			segment11 {
				start_extent = 70
				extent_count = 11	# 176 Gigabytes

				type = "striped"
				stripe_count = 1	# linear

				stripes = [
					"pv10", 0
				]
			}
			segment12 {
				start_extent = 81
				extent_count = 14	# 224 Gigabytes

				type = "striped"
				stripe_count = 1	# linear

				stripes = [
					"pv11", 0
				]
			}
			segment13 {
				start_extent = 95
				extent_count = 14	# 224 Gigabytes

				type = "striped"
				stripe_count = 1	# linear

				stripes = [
					"pv12", 0
				]
			}
			segment14 {
				start_extent = 109
				extent_count = 14	# 224 Gigabytes

				type = "striped"
				stripe_count = 1	# linear

				stripes = [
					"pv13", 0
				]
			}
		}
	}
}


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