| Oracle FAQ | Your Portal to the Oracle Knowledge Grid | |
 |
 | |||
| Oracle FAQ | Your Portal to the Oracle Knowledge Grid | |
|
| |||
Home -> Community -> Mailing Lists -> Oracle-L -> RE: RAID 5/Oracle
doesn't write performance kind of suck too? KK
-----Original Message-----
Jahnke
Sent: Wednesday, August 01, 2001 10:02 AM
To: Multiple recipients of list ORACLE-L
Ravindra Basavaraja schrieb:
>
> We are planning to move our database to Sun 4500 with A1000(RAID 5).Our
> system admin group has been
> working on this setup and I was told that the A1000 which is having 4
disks
> will be seen as just as
> one mount point after configuration.Is this the correct way of
> confuguration.Don't we see each disk
> of A1000 as different mount point.
>
> Thanks
> Ravindra
>
Hi,
if you setup a group of disks as a RAID5 disk array, they appear as one logical unit. Hence, you only see one single mount point. Advantages: Read access is usually faster, since the data is transparantly distributed to your disks by the RAID system. It's another step towards higher availability since RAID5 usually gives you the feature of replacing a damaged disk while the file system keeps operating. Disadvantage: You don't have that much control over the degree of fragmentation since the data distribution is done by the RAID system.
| Regards, | | Stefan Jahnke |
-- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Stefan Jahnke INET: stefan.jahnke_at_d2vodafone.de 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: Kevin Kostyszyn INET: kevin_at_dulcian.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).Received on Wed Aug 01 2001 - 09:57:16 CDT
 |
 |