I recently asked some questions about LSM and Advfs, I got only 3 replies,
and they were not consistent (i.e. different people had different opinions)
Gyula Szokoly <szgyula_at_skysrv.Pha.Jhu.EDU> had done some performance testing
with LSM and Advfs striping, which proved that striping can definately
improve sustained reads and writes. Have a look at
http://tarkus.pha.jhu.edu/scienceArchive/resources/striping.html
Paul Rockwell <rockwell_at_rch.dec.com> was very much in favour of LSM.
LSM might have a small overhead (<1%), but gives more in flexibility:
striping & mirroring on the filesystem level, filesystem & disk
reconfiguration on the fly etc.
Jim Palfreyman <jim_at_orac.ecc.tased.edu.au> on the other hand used LSM
only for mirroring. He thought running Advfs without LSM would be a
lot easier if mirroring isn't an issue.
So I guess I'll get accustomed to advfs first - it's bugs and shortcomings
before breaking everything down with lsm....
Thanks, everybody!
--harald
Harald Lundberg <hl_at_tekla.fi>;Tekla Oy,Koronakatu 1,FIN-02210,ESPOO,FINLAND
tel +358-{0-8879449work,0-8039489fax,0-8026752,11-2418013res,50-5578303mob)
Received on Mon Apr 01 1996 - 17:25:08 NZST