Re: Performance prob with raw devices

In article <1994Jan25.014604.13822_at_qdot.qld.gov.au>, mak_at_qdot.qld.gov.au (Michael Kubik) writes:
|> Due to experiences gained at other sites I have
|> implemented a 6.0 database using raw devices.
|> The platform is a HP 9000/817 with 3 disks (1 x 2g and 2 x 1g)
|> also using HPs Logical Volume Manager
|>
|> The problem is that the raw device tablespaces are only performing
|> at 50% of a filesystem tablespaces .
|>
|> I have succesfully used raw devices before but have never used
|> them inconjuction with LVM .
|>
|> If anyone has any knowledge that might help me out please email me
|>
|> Thanks in advance
|>
|> Michael
|>
|> --
|>
|> I haven't lost my mind -- it's backed up on tape somewhere.
|>
|> +--------------------------------------------------------------------------+
|> | mak_at_qdot.qld.gov.au _-_|\ voice 61 7 834 2822 |
|> | Michael Kubik - DataBase Administrator / * 61 18 88 00 85 |
|> | Brisbane, Queensland, Australia \_.-._/ fax 61 7 834 2854 |
|> +-----------------------------------------------v--------------------------+

I gather this is pretty standard for these sorts of volume managers - I have seen similar problems under AIX (spits...), although I have never tested Oracle on HP.

Simon.
(My opinion, thats all) Received on Wed Jan 26 1994 - 13:40:02 CET