[Lustre-discuss] Remove a inactive OST

Alfonso Pardo alfonso.pardo at ciemat.es
Mon Oct 29 01:40:04 PDT 2012 

Hi, I have removed the inactive OST by: "tunefs.lustre --writeconf" in 
all OST and MDT.

Buy my clients can see the removed OST

*OST0014             : Resource temporarily unavailable*

But in the MDS the inactive OST is erased:

0 UP mgc MGC192.168.11.9 at tcp 705b5ce9-4857-4c87-6663-6a2824537f83 5
   1 UP lov cetafs-MDT0000-mdtlov cetafs-MDT0000-mdtlov_UUID 4
   2 UP mdt cetafs-MDT0000 cetafs-MDT0000_UUID 123
   3 UP mds mdd_obd-cetafs-MDT0000 mdd_obd_uuid-cetafs-MDT0000 3
   4 UP osc cetafs-OST0000-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
192.168.11.11 at tcp
   5 UP osc cetafs-OST0001-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
192.168.11.11 at tcp
   6 UP osc cetafs-OST0002-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
192.168.11.13 at tcp
   7 UP osc cetafs-OST0003-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
192.168.11.13 at tcp
   8 UP osc cetafs-OST0004-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
192.168.11.14 at tcp
   9 UP osc cetafs-OST0005-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
192.168.11.14 at tcp
  10 UP osc cetafs-OST0006-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
192.168.11.15 at tcp
  11 UP osc cetafs-OST0007-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
192.168.11.15 at tcp
  12 UP osc cetafs-OST0008-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
192.168.11.17 at tcp
  13 UP osc cetafs-OST0009-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
192.168.11.18 at tcp
  14 UP osc cetafs-OST000a-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
192.168.11.17 at tcp
  15 UP osc cetafs-OST000b-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
192.168.11.18 at tcp
  16 UP osc cetafs-OST000c-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
192.168.11.19 at tcp
  17 UP osc cetafs-OST000d-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
192.168.11.19 at tcp
  18 UP osc cetafs-OST000e-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
192.168.11.20 at tcp
  19 UP osc cetafs-OST000f-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
192.168.11.20 at tcp
  20 UP osc cetafs-OST0010-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
192.168.11.21 at tcp
  21 UP osc cetafs-OST0011-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
192.168.11.21 at tcp
  22 UP osc cetafs-OST0012-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
192.168.11.16 at tcp
  23 UP osc cetafs-OST0013-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
192.168.11.16 at tcp
  24 UP osc cetafs-OST0015-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
192.168.11.4 at tcp
  25 UP osc cetafs-OST0016-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
192.168.11.4 at tcp
  26 UP osc cetafs-OST0017-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
192.168.11.4 at tcp
  27 UP osc cetafs-OST0018-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
192.168.11.4 at tcp

What can I do to the client don't see the erased OST?


On 23/10/12 08:54, Alfonso Pardo wrote:
> Hello,
>
> I have a inactive OST that, I wish to remove from my Lustre system. I 
> have deactivate the OST with:
>
> lctl conf_param cetafs-OST0014.osc.active=0
>
>
> How do I to remove the inactive OST from my device list?
>
>
> Thanks!!!!
>
> lctl dl -t
>   0 UP mgc MGC192.168.11.9 at tcp 705b5ce9-4857-4c87-6663-6a2824537f83 5
>   1 UP lov cetafs-MDT0000-mdtlov cetafs-MDT0000-mdtlov_UUID 4
>   2 UP mdt cetafs-MDT0000 cetafs-MDT0000_UUID 123
>   3 UP mds mdd_obd-cetafs-MDT0000 mdd_obd_uuid-cetafs-MDT0000 3
>   4 UP osc cetafs-OST0000-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
> 192.168.11.11 at tcp
>   5 UP osc cetafs-OST0001-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
> 192.168.11.11 at tcp
>   6 UP osc cetafs-OST0002-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
> 192.168.11.13 at tcp
>   7 UP osc cetafs-OST0003-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
> 192.168.11.13 at tcp
>   8 UP osc cetafs-OST0004-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
> 192.168.11.14 at tcp
>   9 UP osc cetafs-OST0005-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
> 192.168.11.14 at tcp
>  10 UP osc cetafs-OST0006-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
> 192.168.11.15 at tcp
>  11 UP osc cetafs-OST0007-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
> 192.168.11.15 at tcp
>  12 UP osc cetafs-OST0008-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
> 192.168.11.17 at tcp
>  13 UP osc cetafs-OST0009-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
> 192.168.11.18 at tcp
>  14 UP osc cetafs-OST000a-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
> 192.168.11.17 at tcp
>  15 UP osc cetafs-OST000b-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
> 192.168.11.18 at tcp
>  16 UP osc cetafs-OST000c-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
> 192.168.11.19 at tcp
>  17 UP osc cetafs-OST000d-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
> 192.168.11.19 at tcp
>  18 UP osc cetafs-OST000e-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
> 192.168.11.20 at tcp
>  19 UP osc cetafs-OST000f-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
> 192.168.11.20 at tcp
>  20 UP osc cetafs-OST0010-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
> 192.168.11.21 at tcp
>  21 UP osc cetafs-OST0011-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
> 192.168.11.21 at tcp
>  22 UP osc cetafs-OST0012-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
> 192.168.11.16 at tcp
>  23 UP osc cetafs-OST0013-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
> 192.168.11.16 at tcp
> * 24 IN osc cetafs-OST0014-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
> 192.168.11.4 at tcp*
>  25 UP osc cetafs-OST0015-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
> 192.168.11.4 at tcp
>  26 UP osc cetafs-OST0016-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
> 192.168.11.4 at tcp
>  27 UP osc cetafs-OST0017-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
> 192.168.11.4 at tcp
>  28 UP osc cetafs-OST0018-osc-MDT0000 cetafs-MDT0000-mdtlov_UUID 5 
> 192.168.11.4 at tcp
> -- 
>
> /Alfonso Pardo Díaz
> *Researcher / System Administrator at CETA-Ciemat*
> c/ Sola nº 1; 10200 Trujillo, ESPAÑA
> Tel: +34 927 65 93 17 Fax: +34 927 32 32 37
> CETA-Ciemat logo <http://www.ceta-ciemat.es/>/
>
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-- 

/Alfonso Pardo Díaz
*Researcher / System Administrator at CETA-Ciemat*
c/ Sola nº 1; 10200 Trujillo, ESPAÑA
Tel: +34 927 65 93 17 Fax: +34 927 32 32 37
CETA-Ciemat logo <http://www.ceta-ciemat.es/>/

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