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 |
| @:D2 Vodafone, Abt.: FBOM |
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