Terry,
We currently have about 20 zlinux guests (15 of which have Oracle
databases) under one VM lpar on a z9 processor with 2 IFLs. We have 16gb
of central storage and 4gb of expanded. Two of the Oracle systems are
very heavy users of both cpu and storage, and are continuous 24x7
application. The guests are low to moderate users. We are becoming
storage constrained largely because of the two heavy hitters.
Virtualization does work best when the guests are low to moderate users
of resources and don't all request resources at the same time. Tuning
and sizing of VM, linux, and Oracle is very important. For the most part
follow the tuning recommendations for a VM/zLinux environment, not the
tuning recommendations for a Solaris or AIX environment. We are in the
process of adding more guests and more memory to the lpar.
Bob
________________________________
From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On
Behalf Of Martin, Terry R. (CMS/CTR) (CTR)
Sent: Thursday, September 18, 2008 10:00 PM
To: IBMVM@LISTSERV.UARK.EDU
Subject: What people are doing
Hi
Are you seeing a fair number of shops running Oracle on Linux on Z and
if so have the results been favorable? The question comes about
because....
My management is hearing that when people move servers over to the Z
under Linux they are mostly moving servers that have very little usage
already and that databases like Oracle are staying put on the other
platforms such as Solaris in my case, giving them the impression that
the z/Linux cannot handle this. I know there are some situations where
this may be true but I do not believe on a whole this is necessarily
true. What do you think!
Thanks,
Terry
