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Home -> Community -> Mailing Lists -> Oracle-L -> RE: # of datafiles per tablespace
We use 4Gb datafiles here as the norm without any problems at all and those
datafiles are all backed up with Legato. No problems whatsoever.
Lee
-----Original Message-----
Sent: 05 March 2002 03:33
To: Multiple recipients of list ORACLE-L
That being said is there anything wrong with having one 4G data
file for a tablespace. I personally cannot think of any. There
were the days when 2G was the limit but that sure isn't the case
anymore.
The only thing I can think of is for backups. However, I am always
going to backup on at least the tablespace level so if I have
one file or multiple files I still need to get them all. I don't
know if RMAN has some special feature that turns out it makes sense
to backup just one data file of a tablespace that has multiple
data files but I sure can't think of any good reason.
I just randomly picked RBS but I am seeing the same case on
data tablespaces as well.
-----Original Message-----
no reason. I can see creating multiple files under those conditions
only because you want to keep files to a specific size.
Now, I did once find that the rollback datafiles were a bottleneck on a
system I had. So we built TWO rollback tablespaces, with datafiles on
different mount points etc and the rollback segments divided between
the two tablespaces.
cleared up that bottleneck like a dream
other than that though.. why?
Carmichael
Sent: Monday, March 04, 2002 6:29 PM
To: Multiple recipients of list ORACLE-L
> OK, I know we had the debate already but lets have another go at it.
>
> Say you got a tablespace, lets call it RBS and its for rollbacks.
> Now, for what reason would you create a 500M file and 4 50M files
> for this puppy as opposed to just one file. I just cannot see the
> reasoning
> for this at all. None. Natta. Zilch.
>
> So educate me please if someone out there knows a legit reason they
> would do this.
>
> Lets assume for the sake of argument that disk size and mount point
> size is not a limitation. Space available to me on any one mount
> point
> is unlimited.
>
> ___________________________
> Kimberly Smith
> Portland, OR
> ksmith2_at_myfirstlink.net
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Kimberly Smith
> INET: ksmith2_at_myfirstlink.net
>
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-- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Rachel Carmichael INET: wisernet100_at_yahoo.com Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Kimberly Smith INET: ksmith2_at_myfirstlink.net Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). The information contained in this communication is confidential, is intended only for the use of the recipient named above, and may be legally privileged. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please re-send this communication to the sender and delete the original message or any copy of it from your computer system. -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Robertson Lee - lerobe INET: lerobe_at_acxiom.co.uk Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).Received on Tue Mar 05 2002 - 02:18:19 CST
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