Ubuntu

反向“lvconvert –splitcache”?

  • December 23, 2019

為了擴展邏輯卷,我不得不從中分離記憶體:

root@server:/home# lvextend -L+50G /dev/vg1/home
 Unable to resize logical volumes of cache type.
root@server:/home# lvs
 LV      VG   Attr       LSize   Pool         Origin         Data%  Meta%  Move Log Cpy%Sync Convert
 home    vg1  Cwi-aoC--- 250.00g [homeCache]  [home_corig]   100.00 9.29            0.00            
 newvar  vg1  Cwi-aoC--- 200.00g [Cvar_cache] [newvar_corig] 100.00 0.92            0.00            
 root_lv vg1  -wi-ao----  93.07g                                                                    
 var     vg1  -wi-ao---- 120.00g                                                                    
root@server:/home# lvconvert --splitcache /dev/vg1/home
 Logical volume vg1/home is not cached and cache pool vg1/homeCache is unused.
root@server:/home# lvextend -L+50G /dev/vg1/home
 Size of logical volume vg1/home changed from 250.00 GiB (64000 extents) to 300.00 GiB (76800 extents).
 Logical volume home successfully resized.
root@server:/home# resize2fs !$
resize2fs /dev/vg1/home
resize2fs 1.42.13 (17-May-2015)

如何將拆分記憶體重新附加到 LV?我應該使用 –uncache 來銷毀記憶體然後重建它嗎?如果是這樣,我下一步要銷毀舊記憶體以不浪費空間嗎?

如果有人正在尋找這個(或未來的我),請回答:

lvconvert --type cache --cachepool cache-pool vg/lv

所以在這種情況下:

lvconvert --type cache --cachepool homeCache vg1/home

您可以通過以下方式查看所有 LV,包括記憶體:

lvs -a

引用自:https://unix.stackexchange.com/questions/390745