Dear master,
??? I''m so?happy?to?join in ?this forum to solve my
question?,I''d like to know what is the unit which the lustre client
cache the file data,a file or a block or a object????or it still only use the
vfs buffer cache mechanism?
?? And I?want to some materials about the lustre cache include the mds cache,ost
cache and client cache. That wil be nice of you to help me for my study.
???????????????????????????????????????????????????????????????????????????????????????????
yours sincerely?? Wei Tang
?????????????????????????????????????????????????????????????????????????????????????????????
05/28/2009
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http://card.mail.cn.yahoo.com/
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On May 28, 2009 23:13 +0800, ? ? wrote:> ??? I''m so?happy?to?join in ?this forum to solve my > question?,I''d like to know what is the unit which the lustre client > cache the file data, a file or a block or a object????or it still only > use the vfs buffer cache mechanism?While Lustre itself has byte-range locking, the Linux kernel will only practically allow caching at the page level. The client can also send uncached writes and the server will do byte-range locking.> ?? And I?want to some materials about the lustre cache include the > mds cache, ost cache and client cache. That will be nice of you to > help me for my study.All of the Lustre documentation is linked from: http://wiki.lustre.org/index.php/Lustre_Documentation Cheers, Andreas -- Andreas Dilger Sr. Staff Engineer, Lustre Group Sun Microsystems of Canada, Inc.