Re: Oracle on Sun vs Tru64

Dennis

I dont have the MEtalink note that says this but here is a clip from one of the forums

<begin quote>
Jonathan has given good advice.

Also, on Solaris, Oracle db_block_size is limited to 16K. There are some other unix platforms that you can use 32K, but not Solaris. Regards
Tom Villane
Oracle Support Metalink Analyst
<end quote>

What version of Oracle are u talking abt ? I was talking abt 8.1.7.4

Babu

• Original Message ----- To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Wednesday, October 15, 2003 4:44 PM

> Babu - I created a 32K block size database on Solaris. What is the issue?
>
> Jake - We are doing the same. Nothing big to report. In our case we saw
this
> coming so we hadn't put any resources in the T64 in several years. The new
> Solaris system has newer technology, so it really screams. I had asked
list
> members for suggestions on rapid data movement to reduce downtime. It
turns
> out the new box can actually import much faster than the old box can
export.
>
>
>
>
> Dennis Williams
> DBA
> Lifetouch, Inc.
> dwilliams_at_lifetouch.com
>
> -----Original Message-----
> Sent: Wednesday, October 15, 2003 11:39 AM
> To: Multiple recipients of list ORACLE-L
>
>
> We moved from a T64 (ES40 4 CPU) to a Sun (6800 2 blades 8 CPU) recently.
> There were no problems with the export/import of the 1/2 TB database.
>
> One big thing was that the max block size on Sun for 8174 is 16K. We had
> used 32K on T64. So we had to rethink our multi_block_read_counts, etc.
FTS
> became kind of slower but I cant say it was due to this move. We were
> undertaking a big change that time anyway and we tuned the SQL to get a
> better performance.
>
> One another thing to keep in mind is are you going to change the
underlying
> filesystem also - meaning are you planning to move from Compaq Storage
Works
> to some other ? We did that (moved from StorageWorks to Hitachi) and took
a
> performance beating initially. The problem was due to a misconfiguration
on
> the Hitachi side and once the rectified it it has become acceptable. Still
I
> dont see the IO rates the StorageWorks used to deliver.. :-(
>
> Babu
>
> ----- Original Message -----
> To: Multiple <mailto:ORACLE-L_at_fatcity.com> recipients of list ORACLE-L
> Sent: Wednesday, October 15, 2003 10:54 AM
>
> Our CIO is pushing a platform change from Tru64 to Sun. We are currently
> running a VLDB (~1.5 TB) on Tru64. Does anyone have feedback on the
> following:
> 1) Experiences with either/both, preferred platform?
> 2) Experiences with platform changes? (Time required for migration?)
> 3) Any other thoughts?
>
> Thanks for your feedback. I am just starting to research the issue so I am
> interested in any input.
>
>
>
> _____
>
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> Author: DENNIS WILLIAMS
> INET: DWILLIAMS_at_LIFETOUCH.COM
>
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Author: Oracle-L
  INET: orclbabu_at_hotmail.com

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