From: Wayne Blom (wayne_blom@email.com)
Date: Thu Jul 25 2002 - 23:13:00 EDT
Hi all,
I have so far read 3 different versions on the best type of raid level to use (differs amongst us here as well) So I thought I would give all you great people a chance to throw in your 2cents worth.
a- Raid level 0 - Stiping no redundancy. Cost Best, Availability poor, Performance Good
b - Raid level 1 - Mirroring - Cost Expensive, Availability Excellent, Performance good for reads poor for writes.
c - Raid level 0 + 1 - Striping with mirroring - Cost Expensive, Availability Excellent, Performance Best
d - Raid level 3,4,5 - Variations on Striping with redundant disk - Cost good, Availability Good, Performance Good
e - Raid level 5 - Striping with xor across all disks - Cost good, Availability good, Performance moderate.
There are other levels but I would rate raid 5 as the best performance but not according to the information above.
What other opinions are there? What do you recommend as the BEST PERFORMANCE raid with at least good availability?
Wayne Blom
Systems Specialist
Mayne Group IT
E-mail: wayne.blom@au.faulding.com
S-mail: Building D, 75-83 Hardys Rd, Underdale SA 5032
Ear-mail: 0419808496
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