[Lustre-discuss] Remove a lost OST

[Alfonso Pardo]

Hi,

In a few days I will stop my lustre infrastructure, and I will can solved a old problem that I have with a lost OST.

I have a lost OST than I can’t recover (the OST0014):

UUID                                 1K-blocks        Used          Available    Use%    Mounted on
cetafs-MDT0000_UUID  1462920404    64895656   1300479028   5% /mnt/data[MDT:0]
cetafs-OST0000_UUID   9760101272  1542373104  7729446316  17% /mnt/data[OST:0]
cetafs-OST0001_UUID   9760101272  1414302924  7857519284  15% /mnt/data[OST:1]
cetafs-OST0002_UUID   9760101272  1738339152  7533482352  19% /mnt/data[OST:2]
cetafs-OST0003_UUID   9760101272  1464825624  7806995228  16% /mnt/data[OST:3]
cetafs-OST0004_UUID   9760101272  1422237284  7849582828  15% /mnt/data[OST:4]
cetafs-OST0005_UUID   9760101272  1418003120  7853817040  15% /mnt/data[OST:5]
cetafs-OST0006_UUID   9760101272  1723708200  7548112848  19% /mnt/data[OST:6]
cetafs-OST0007_UUID   9760101272  1373973876  7897847276  15% /mnt/data[OST:7]
cetafs-OST0008_UUID   9760101272  1548924900  7722894388  17% /mnt/data[OST:8]
cetafs-OST0009_UUID   9760101272  1482367088  7789454088  16% /mnt/data[OST:9]
cetafs-OST000a_UUID   9760101272  1528436432  7743377448  16% /mnt/data[OST:10]
cetafs-OST000b_UUID   9760101272  1500889020  7770929664  16% /mnt/data[OST:11]
cetafs-OST000c_UUID   9760101272  1477190776  7794629116  16% /mnt/data[OST:12]
cetafs-OST000d_UUID   9760101272  1862887572  7408933996  20% /mnt/data[OST:13]
cetafs-OST000e_UUID   9760101272  1504771732  7767050696  16% /mnt/data[OST:14]
cetafs-OST000f_UUID   9760101272  1578360196  7693460648  17% /mnt/data[OST:15]
cetafs-OST0010_UUID   9760101272  1801015216  7470806488  19% /mnt/data[OST:16]
cetafs-OST0011_UUID   9760101272  1552896208  7718917064  17% /mnt/data[OST:17]
cetafs-OST0012_UUID   9760101272   673033020  8598788676   7% /mnt/data[OST:18]
cetafs-OST0013_UUID   9760101272   673728700  8598092076   7% /mnt/data[OST:19]
OST0014             : Resource temporarily unavailable
cetafs-OST0015_UUID   1948881116   146169284  1705166048   8% /mnt/data[OST:21]
cetafs-OST0016_UUID   1948881116    86958272  1764377060   5% /mnt/data[OST:22]
cetafs-OST0017_UUID   1948881116   129321128  1722014204   7% /mnt/data[OST:23]
cetafs-OST0018_UUID   1948881116   131278224  1720057108   7% /mnt/data[OST:24]


And I have a couple of files that a part or stripe was stored in the lost OST0014:

#> ls
-?????????   ? ?       ?         ?            ? .viminfo
#> rm –f .viminfo
rm: cannot remove `.viminfo': Invalid argument


Can somebody tell my how I remove this files from the filesystem and erase permanent the lost OST0014? During the lustre filesystem STOP I will can do any kind of lfsck, fsck, mount ldiskfs... any ideas?


Thanks in advance

Alfonso Pardo Diaz 
System Administrator / Researcher 
c/ Sola nº 1; 10200 TRUJILLO, SPAIN 
Tel: +34 927 65 93 17 Fax: +34 927 32 32 37 

 

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