Users Guide

Table 37. RAID level performance comparison (continued)
RAID Level Data
Availability
Read
Performance
Write
Performance
Rebuild
Performance
Minimum Disks
Required
Suggested
Uses
RAID 50 Good Very Good Fair Fair N + 2 (N = at
least 4)
Medium sized
transactional or
data intensive
uses.
RAID 6 Excellent Sequential
reads: good.
Transactional
reads: Very
good
Fair, unless
using writeback
cache
Poor N + 2 (N = at
least two disks)
Critical
information.
Databases and
other read
intensive
transactional
uses.
RAID 60 Excellent Very Good Fair Poor X x (N + 2) (N =
at least 2)
Critical
information.
Medium sized
transactional or
data intensive
uses.
N = Number of physical disks
X = Number of RAID sets
Supported controllers
Supported RAID controllers
The iDRAC interfaces support the following PERC9 controllers:
● PERC H830
● PERC H730P
● PERC H730
● PERC H330
The iDRAC interfaces support the following PERC8 controllers:
● PERC H810
● PERC H710P
● PERC H710
● PERC H310
The iDRAC interfaces support the following modular PERC controllers:
● PERC FD33xS
● PERC FD33xD
NOTE:
For more information on configuring and changing the controller mode on the PERC FD33xS and PERC FD33xD
controllers, see the Dell Chassis Management Controller Version 1.2 for PowerEdge FX2/FX2s User's Guide available at
dell.com/support/manuals.
Supported non-RAID controllers
The iDRAC interface supports 12 Gbps SAS HBA external controller, HBA330 internal controller, and supports SATA drives only
for HBA330 internal controller.
194
Managing storage devices