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general:linux:lvmcache

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general:linux:lvmcache [2021/02/11 08:24] – [Remove caching from the thinpool] sunkangeneral:linux:lvmcache [2021/02/11 08:25] (current) – [And now reattach the cache] sunkan
Line 245: Line 245:
   WARNING: Cached thin pool's data cannot be currently resized and require manual uncache before resize!   WARNING: Cached thin pool's data cannot be currently resized and require manual uncache before resize!
   Logical volume F3_2TB/ThinPool0_tdata is now cached.   Logical volume F3_2TB/ThinPool0_tdata is now cached.
 +</code>
 +
 +
 +And some "after" information
 +<code>
 +bigbang:~# lvdisplay -a F3_2TB/ThinPool0_tdata
 +  --- Logical volume ---
 +  Internal LV Name       ThinPool0_tdata
 +  VG Name                F3_2TB
 +  LV UUID                Fyc9Md-c1XD-xpib-dJDw-Obr4-SYL5-G88yqS
 +  LV Write Access        read/write
 +  LV Creation host, time bigbang, 2019-10-12 14:17:30 +0200
 +  LV Cache pool name     ThinPool0_CDLV
 +  LV Cache origin name   ThinPool0_tdata_corig
 +  LV Status              available
 +  # open                 1
 +  LV Size                1.00 TiB
 +  Cache used blocks      0.13%
 +  Cache metadata blocks  12.46%
 +  Cache dirty blocks     10.12%
 +  Cache read hits/misses 0 / 36
 +  Cache wrt hits/misses  3663 / 1530
 +  Cache demotions        0
 +  Cache promotions       1067
 +  Current LE             262144
 +  Segments               1
 +  Allocation             inherit
 +  Read ahead sectors     auto
 +  - currently set to     256
 +  Block device           253:36
 </code> </code>
general/linux/lvmcache.txt · Last modified: 2021/02/11 08:25 by sunkan

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