ASM
6 30TB spinning drives
type of path? we are not using asmlib or asm_fd (whatever its called).
On Mon, May 7, 2018 at 11:54 AM Stefan Knecht <knecht.stefan@xxxxxxxxx>
wrote:
Some details would help:
- ASM or FS? Type of FS?
- LUNs? Numbers, sizes?
- metal? SSD? Type of path to the disks?
Etc...
On Mon, 7 May 2018, 21:00 Chris Stephens, <cstephens16@xxxxxxxxx> wrote:
We have a new 5 node 12.2 RAC system that is not performing the way we
want.
The glaring issue is that "db file sequential read"'s are taking ~10ms.
before i lob this over to the storage administrators, are there any
possible areas in the clusterware/database configuration that I should
investigate first? i have root access to all of the nodes. is there any
information i can collect that would expedite the process of figuring out
why we have such slow I/O times?
slow i/o was discovered by running slob. if you don't know about that
tool, you should. we all owe kevin a debt of gratitude. ;)
if nothing else, i hope to learn a little more about storage than i
currently know (which isn't much).
thanks for any help.
chris
