# Storage array question

**URL:** <https://community.unix.com/t/storage-array-question/144954>\
**Category:** Filesystems, Disks and Memory\
**Created:** [November 25, 2002, 12:10pm UTC](https://community.unix.com/t/storage-array-question/144954 "2002-11-25T12:10:05Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ncmurf00](https://community.unix.com/letter_avatar/ncmurf00/32/6_449c533f586939b6e5f246632a46421f.png) [@ncmurf00](https://community.unix.com/u/ncmurf00)\
**Post date:** [November 25, 2002, 12:10pm UTC](https://community.unix.com/t/storage-array-question/144954/1 "2002-11-25T12:10:05Z")

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We just purchased a MOD30 disk array strage system.  
We have 15 drives and 2 hot spares.  
We're running a database app with 8 data sets.  
I'm trying to get the best i/o speed out of my disk configuration.  
Right now I have 3 raid5 arrays setup. This seems to offer the same performance as having the datafiles on separate hard drives with Raid1.  
I distributed the data files evenly across the 3 raids.  
Does anyone know what would make for the optimum config for reading? We run a lot of queries that take a long time to run through the database. I'm looking for faster searches.

Any thoughts?

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<div class="post-metadata">

**Author:** ![MizzGail](https://community.unix.com/user_avatar/community.unix.com/mizzgail/32/31_2.png) [@MizzGail](https://community.unix.com/u/MizzGail)\
**Post date:** [November 25, 2002, 3:25pm UTC](https://community.unix.com/t/storage-array-question/144954/2 "2002-11-25T15:25:51Z")

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What type of database?  
We had informix on a raid5 set and performance was very poor. we mirrored our disks and make sure they were not on the same bus.  
seemed to help.