[ovirt-devel] ovirt ssd local cache

[yxu]

Hi Everyone !


    Recently  I am reading some documents about vmeare virtual flash
<http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=di
splayKC&externalId=2058983>  and citrix IntelliCache
<http://support.citrix.com/article/CTX129052>  . I am wondering if we can
add some feature like that into ovirt .

 

Then I found something like bcache and flash cache. 

 

After changing some code , I tried bcache in an old version of ovirt node .
It works for just one node . 

 

But when I add another node to the data center, the problem occurred . 

 

When I write some data into node A, the data will be stored in node A's
cache and iscsi server.

 

But the cache of node B does not know the change . the data in node B's
cache still the old one.

 

In vmware's solution and citrix's solution , it seemed they have some way to
solve this problem .

 

Do you have any idea ?

 

Thanks 

 

 

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