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2020 Mar 24
2
Building a NFS server with a mix of HDD and SSD (for caching)
.../dev/sdd ==> spinning raid6 array
I've added "allow_mixed_block_sizes = 1" to lvm.conf to be able to add
sdb and sdd in the same VG (because of the sector size missmatch). But
as the LVs will only use one and only one PV I guess it's OK.
# lvcreate -L 500M -n lv_cache_meta VGnfs /dev/sdb
# lvcreate -l +100%FREE -n lv_cache VGnfs /dev/sdb
# lvconvert --type cache-pool /dev/VGnfs/lv_cache --poolmetadata
/dev/VGnfs/lv_cache_meta
# lvcreate -l +100%FREE -n LVnfs VGnfs /dev/sdd
# lvconvert --type cache /dev/VGnfs/LVnfs --cachepool /dev/VGnfs/lv_cache
# lvconvert --cachemode wr...
2020 Mar 24
0
Building a NFS server with a mix of HDD and SSD (for caching)
...er, right?
>
> I've added "allow_mixed_block_sizes = 1" to lvm.conf to be able to add
> sdb and sdd in the same VG (because of the sector size missmatch). But
> as the LVs will only use one and only one PV I guess it's OK.
>
> # lvcreate -L 500M -n lv_cache_meta VGnfs /dev/sdb
> # lvcreate -l +100%FREE -n lv_cache VGnfs /dev/sdb
> # lvconvert --type cache-pool /dev/VGnfs/lv_cache --poolmetadata
> /dev/VGnfs/lv_cache_meta
> # lvcreate -l +100%FREE -n LVnfs VGnfs /dev/sdd
> # lvconvert --type cache /dev/VGnfs/LVnfs --cachepool /dev/VGnfs/lv_cache
&g...