Users Guide

Table Of Contents
Table 50. RAID level performance comparison
RAID Level Data
Redundancy
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 BOSS controllers:
BOSS-S1 Adapter
BOSS-S1 Modular (for blade servers)
BOSS-S2 Adapter
The iDRAC interfaces support the following PERC11 controllers:
PERC H755 Adapter
PERC H755 Front
PERC H755N Front
The iDRAC interfaces support the following PERC10 controllers:
PERC H740P Mini
PERC H740P Adapter
PERC H840 Adapter
PERC H745P MX
The iDRAC interfaces support the following PERC9 controllers:
PERC H330 Mini
PERC H330 Adapter
PERC H730P Mini
PERC H730P Adapter
PERC H730P MX
Supported non-RAID controllers
The iDRAC interface supports 12 Gbps SAS HBA external controller and HBA330 Mini or Adapter controllers.
iDRAC supports HBA330 MMZ, HBA330 MX adapters.
Managing storage devices
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