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AutoRaid with Oracle Databases

Burell Charity_1
Occasional Visitor

AutoRaid with Oracle Databases

Looking for any information in relation to using AutoRaid with Oracle databases
that are more write oriented than read oriented. Looking for Pros and Cons.
4 REPLIES

Re: AutoRaid with Oracle Databases

For best performance use the Autoraid with 4 to 6 LUNS and split the luns
evenly between the controllers using LVM, setting up primary and alternate
paths. With a write intensive database performance is improved if you leave
some space unallocated and not assigned to a lun.
Steve White_8
Frequent Advisor

Re: AutoRaid with Oracle Databases

The primary reasons to consider the autoraid is the controller cache and raid.
The Model 12H has 96MB RAM for cache, this will beenfit the I/O to disk.

The autoraid is going to provide you with data strong data protection.
Venu_2
Regular Advisor

Re: AutoRaid with Oracle Databases

Hi,

It's believed that RAID 0/1 is good for oracle database.

To acheive this on autoraid we shoul leave more unallocated space for the controller to use for RAID 0/1

venu
Maarten van Maanen
Regular Advisor

Re: AutoRaid with Oracle Databases

We use an AutoRAID 12H with Oracle 8. In our situation the Oracle is mainly read instead of write. The full redo-log files for the Oracle are active and are also on the AutoRAID. It seems this is limiting the performance of the autoraid since the SCSI-queues are always much larger than should be.

Maarten van Maanen
Computer 2000, Netherlands