[ovirt-users] thin_check run on VM disk by host on startup ?!

Rik Theys Rik.Theys at esat.kuleuven.be
Tue Aug 30 12:51:23 UTC 2016


Hi,

While rebooting one of the hosts in an oVirt cluster, I noticed that
thin_check is run on the thin pool devices of one of the VM's on which
the disk is assigned to.

That seems strange to me. I would expect the host to stay clear of any
VM disks.

When I look at the 'lvs' output on the host, it seems to have activated
the VM's volume group that has the thin pool in it. It has also
activated one other volume group (and it's LV's) that is _not_ a thin
pool. All other VM disks are shown as LV's with their uuid. See output
below.

Is this expected behaviour? I would hope/expect that the host will never
touch any VM disks. Am I supposed to configure an LVM filter myself to
prevent this issue?

We had a thin pool completely break on an VM a while ago and I never
determined the root cause (was a test VM). If the host changed something
on the disk while the VM was running on the other host this might have
been the root cause.

Regards,

Rik


 LV                                   VG
  Attr       LSize    Pool  Origin Data%  Meta%  Move Log Cpy%Sync Convert
  05a0fc6e-b43a-47b4-8979-92458dc1c76b
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   10.00g

  08d25785-5b52-4795-863c-222b3416ed8d
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------    3.00g

  0a9d0272-afc5-4d2e-87e4-ce32312352ee
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   40.00g

  0bc1cdc9-edfc-4192-9017-b6d55c01195d
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   17.00g

  181e6a61-0d4b-41c9-97a0-ef6b6d2e85e4
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------  400.00g

  1913b207-d229-4874-9af0-c7e019aea51d
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------  128.00m

  1adf2b74-60c2-4c16-8c92-e7da81642bc6
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------    5.00g

  1e64f92f-d266-4746-ada6-0f7f20b158a6
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   65.00g

  22a0bc66-7c74-486a-9be3-bb8112c6fc9e
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------    9.00g

  2563b835-58be-4a4e-ac02-96556c5e8c1c
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------    9.00g

  27edac09-6438-4be4-b930-8834e7eecad5
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------    5.00g

  2b57d8e1-d304-47a3-aa2f-7f44804f5c66
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   15.00g

  2f073f9b-4e46-4d7b-9012-05a26fede87d
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   36.00g

  310ef6e4-0759-4f1a-916f-6c757e15feb5
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------    5.00g

  3125ac02-64cb-433b-a1c1-7105a11a1d1c
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   36.00g

  315e9ad9-7787-40b6-8b43-d766b08708e2
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   64.00g

  32e4e88d-5482-40f6-a906-ad8907d773ce
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   10.00g

  32f0948b-324f-4e73-937a-fef25abd9bdc
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   32.00g

  334e0961-2dad-4d58-86d9-bfec3a4e83e4
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   11.00g

  36c4a274-cbbe-4a03-95e5-8b98ffde0b1b
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------    1.17t

  36d95661-308f-42e6-a887-ddd4d4ed04e9
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------  250.00g

  39d88a73-4e59-44a7-b773-5bc446817415
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------    4.00g

  3aeb1c19-7113-4a4b-9e27-849af904ed41
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   32.00g

  43ac529e-4295-4e77-ae06-963104950921
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   33.00g

  462f1cc4-e3a7-4fcd-b46c-7f356bfc5589
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   10.00g

  479fc9a4-592c-4287-b8fe-db7600360676
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------    1.00t

  4d05ce38-2d33-4f01-ae33-973ff8eeb897
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------    4.00g

  4d307170-7d45-4bb9-9885-68aeacee5f33
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   24.00g

  4dca97ab-25de-4b69-9094-bf02698abf0e
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------    8.00g

  54013d0f-fd47-4c91-aa31-f6dd2d4eeaad
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   64.00g

  55a2a2aa-88f2-4aca-bbfd-052f6be3079d
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------    4.00g

  57131782-4eda-4fbd-aeaa-af49d12a79e9
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   14.00g

  5884b686-6a2e-4166-9727-303097a349fe
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   32.00g

  6164a2b2-e84b-4bf9-abab-f7bc19e1099d
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   10.00g

  62c8a0be-4d7f-4297-af1c-5c9d794f4ba0
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------  500.00g

  67499042-4c19-425c-9106-b3c382edbec1
a797e417-adeb-4611-b4cf-10844132eef4 -wi-a-----    1.00t

  6ba95bb2-04ed-4512-95f4-34e38168f9e9
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   22.00g

  6ebf91c2-2051-4e2b-b1c3-57350834f236
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------  100.00g

  70c834a0-05f4-469f-877c-24101c7abf25
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------    6.00g

  71401df8-19dd-45d0-be33-f07937fe042d
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------    6.00g

  73d5eb12-88e3-44a2-a791-9b7ad5b77953
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   10.00g

  74e0a4ea-d873-4381-85a8-122cd4d2e961
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------  260.00g

  776901e3-bf78-4cab-aac6-b02588a7b1e1
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   48.00g

  86d608ac-1a24-451e-9a29-1b7cbc13c654
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------    4.00g

  88fbb53f-5019-4cc5-aca6-686731c43f67
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   14.00g

  8dc43564-9a9d-4600-a715-0b62c4d0308f
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------    5.00g

  90167fb2-0941-4cf3-ae56-7cefca7909dd
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   16.00g

  99a367c1-ce88-45c7-ac21-aa82c7e9b86e
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------    4.00g

  9d0fa9df-4b14-46cc-91a4-e66155230b9e
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   10.00g

  9d31be10-59c7-4994-9c72-c57608c1b1f0
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------  250.00g

  9f6dbd0b-78ef-4b84-8467-04e5bd05abfd
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------    7.00g

  9fb1bdee-0e84-46df-89e2-f05afccd3867
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   70.00g

  a0db7a2a-4923-4873-81a0-2f6b7037e643
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   31.00g

  a270bad3-cabb-4c14-bf71-347ee148e343
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   50.00g

  a9bfdea5-ce26-42d2-af9c-2a6f02df0d2d
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   16.00g

  b5efe389-6535-412a-a4ed-f3f6147a6dae
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   10.00g

  b6c6e718-5c16-4918-b47b-a2c936228a08
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   15.00g

  baca4655-c58a-413f-a6c7-b39add9eecb8
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   16.00g

  bf378ca0-373a-4a9c-85cd-9983a3004ab7
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------  100.00g

  c360aaaf-68a4-450d-acac-ff474a579f6c
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------  100.00g

  c77e9e8c-40a2-4db0-822e-7a089cc77b8a
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------  128.00m

  cb634231-8bb3-4725-89b7-90c33046bc7c
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   35.25g

  cfca3f6e-5c46-4e65-96a5-37cede02a3b5
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------  256.00g

  d22ff40f-4ce2-4f3a-8c35-07ca72ceb91d
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   16.00g

  d6ed59ff-6f43-4ebf-b83d-683acd9013c9
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   16.00g

  d7357da8-1899-462f-b4a9-d7cf9d6f77c2
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------    5.00g

  d9dbfb34-0889-42d8-9c31-bad4948f9ca5
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   33.00g

  dc057b04-446b-48d4-b559-bb85f38139ca
a797e417-adeb-4611-b4cf-10844132eef4 -wi-ao----   24.00g

  e5d4a078-cd51-4a5d-9f58-29ef253821f9
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   12.00g

  eca39fab-60a8-4384-8196-32b55f24107b
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   64.00g

  ed23275c-d5e8-4f7c-a795-52bf59c93d4a
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------    4.00g

  ee5eab01-88cb-4a4b-bcd3-46e26ae47feb
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   64.00g

  f0676f9b-c942-4ebc-8614-d79b437d667a
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   18.00g

  f778d555-cf2c-4f47-83fe-507ab4b0e96d
a797e417-adeb-4611-b4cf-10844132eef4 -wi-------   15.00g

  ids
a797e417-adeb-4611-b4cf-10844132eef4 -wi-a-----  128.00m

  inbox
a797e417-adeb-4611-b4cf-10844132eef4 -wi-a-----  128.00m

  leases
a797e417-adeb-4611-b4cf-10844132eef4 -wi-a-----    2.00g

  master
a797e417-adeb-4611-b4cf-10844132eef4 -wi-a-----    1.00g

  metadata
a797e417-adeb-4611-b4cf-10844132eef4 -wi-a-----  512.00m

  outbox
a797e417-adeb-4611-b4cf-10844132eef4 -wi-a-----  128.00m

  24d78600-22f4-44f7-987b-fbd866736249
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi-------   37.50g

  27c6e31e-dad2-4df1-a76d-ee337f1766b1
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi-------    8.00g

  28506d83-8d12-43ea-aa71-7f4a93486aa9
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi-------    1.17t

  292b02b2-dd4d-43b0-9799-f8f663cff6ef
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi-------   75.00g

  3d39299a-1912-4a91-9c4a-dcaaa056627a
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi-------   32.00g

  64daff8f-e92a-4823-879f-78bc8314d2e6
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi-------  128.00m

  6a3eaf14-21f8-4517-9eef-be274ce07857
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi-------    7.00g

  6c1136cb-4525-4cb5-b705-f81265878355
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi-------   19.00g

  ab9dfe0d-72a6-4d94-9206-27198f8dc579
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi-------  128.00m

  cb59ea43-4418-4da3-86e1-77feaf2637b1
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi-------    3.00g

  cc3dca9d-b1a7-4b05-8f53-7d9da0655be5
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi-------  431.00g

  d2274e23-dc3f-49e3-b5f4-2b3eada29937
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi-------    4.00g

  d57e7183-0f57-42bb-bb14-dd7bf7e320cb
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi-------    6.00g

  f7545aa2-e953-4f6c-bd62-1b1fe33bc66e
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi-------    7.00g

  fa1d8c9c-9874-4fad-b059-a0c60053dcfb
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi-------   16.00g

  ids
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi-a-----  128.00m

  inbox
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi-a-----  128.00m

  leases
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi-a-----    2.00g

  master
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi-a-----    1.00g

  metadata
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi-a-----  512.00m

  outbox
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi-a-----  128.00m

  imap                                 maildata
   Vwi---tz--  750.00g pool0
  ldap                                 maildata
   Vwi---tz--    3.00g pool0
  log                                  maildata
   Vwi---tz--   10.00g pool0
  mailconfig                           maildata
   Vwi---tz--    2.00g pool0
  pool0                                maildata
   twi---tz-- 1020.00g
  postfix                              maildata
   Vwi---tz--   10.00g pool0
  root                                 vg_amazone
   -wi-ao----   32.00g
  swap                                 vg_amazone
   -wi-ao----   64.00g
  phplogs                              vg_logs
   -wi-a-----   12.00g
  wwwlogs                              vg_logs
   -wi-a-----   12.00g



-- 
Rik Theys
System Engineer
KU Leuven - Dept. Elektrotechniek (ESAT)
Kasteelpark Arenberg 10 bus 2440  - B-3001 Leuven-Heverlee
+32(0)16/32.11.07
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