Hello,
I would like to use flashcache te speed up data reads from the drbd disk.
Therefore I have created a "write through" flashcache device
Using :
#/sbin/flashcache_create -p thru -b 16k cachedev /dev/sda1 /dev/sdc1
Then "/dev/mapper/cachedev" is used as a drbd target
...
on vmhost2a {
device /dev/drbd0;
disk /dev/mapper/cachedev;
address 192.168.100.3:7788;
meta-disk internal;
}
on vmhost2b {
device /dev/drbd0;
disk /dev/mapper/cachedev;
address 192.168.100.4:7788;
meta-disk internal;
}
...
As a test I have a VM which is being ping-ponged between two servers using live
migration.
When I perform the test I get a corrupted VM!
See the following post
http://elrepo.org/bugs/view.php?id=228
Without flashcache it works fine.
Does anyone have a working drbd+flashcache setup?
What do I do wrong?
Best regards,
Maurits van de Lande
| Van de Lande BV. | Lissenveld 1 | 4941VK | Raamsdonksveer | the Netherlands
|T +31 (0) 162 516000 | F +31 (0) 162 521417 |
www.vdl-fittings.com<http://www.vdl-fittings.com> |
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