Now they have hardware striping. Regards,
Waleed -----Original Message----- Sent: Wednesday, April 24, 2002 2:29 PM To: Multiple recipients of list ORACLE-L My understanding was that EMC does not stripe its disks. they just have mirror and RAID S. --- Sr DBA <[EMAIL PROTECTED]> wrote: > Why would you software stripe it if you are using > EMC? > ----- Original Message ----- > From: "Johnson Poovathummoottil" <[EMAIL PROTECTED]> > To: "LazyDBA.com Discussion" <[EMAIL PROTECTED]> > Sent: Wednesday, April 24, 2002 8:57 AM > Subject: Number of File systems to use. > > > > All, > > > > Although this has been discussed many times. My > boss > > wants other opinions on this. > > > > We EMC storage whcih uses 9 gig disks. > > We also use veritas volume manager. > > > > We plan to upgrade our SUN ultra e6500 to sun fire > 15K > > machine. During to move we want to do a little > reorg. > > This machine will have 6 partitions, 3 for the > OLTP > > databases and 3 for the warehouse. > > > > The warehouse currently uses 20 file systems 25 GB > > each(3 disks raid S) for data and index. We have > > agreed on making the file systems to use 4 disks > and > > stripe it with 256 KB stripe size. There are two > > opinions regarding the number of file systems. > > > > 1: 50 file systems of 15 GB each. In this case the > 4 > > disks are not fully used. What is ramainig after > the > > 15 GB can be alloted to other file systems other > than > > the ones used by the database. Advantage IO spread > > over disks. > > > > 2: 20 file systems of 34 GB each. All four disks > are > > fully used. IO over 80 disks. > > > > Question.: > > 1:Since we are using EMC do we need to pay so much > > attention to spreading IO. > > 2: Any problems/advantages in having too many file > > systems. > > > > Please give all your opinions. > > > > > > > > __________________________________________________ > > Do You Yahoo!? > > Yahoo! Games - play chess, backgammon, pool and > more > > http://games.yahoo.com/ > > > > -------- > > Oracle documentation is here: > http://tahiti.oracle.com/pls/tahiti/tahiti.homepage > > To unsubscribe: send a blank email to > [EMAIL PROTECTED] > > To subscribe: send a blank email to > [EMAIL PROTECTED] > > Visit the list archive: > http://www.LAZYDBA.com/odbareadmail.pl > > Tell yer mates about http://www.farAwayJobs.com > > By using this list you agree to these > terms:http://www.lazydba.com/legal.html > > > > __________________________________________________ Do You Yahoo!? Yahoo! Games - play chess, backgammon, pool and more http://games.yahoo.com/ -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Johnson Poovathummoottil INET: [EMAIL PROTECTED] 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: [EMAIL PROTECTED] (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: Khedr, Waleed INET: [EMAIL PROTECTED] 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: [EMAIL PROTECTED] (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).
