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Choosing Your RAID Controller

RAID 1+0 is the ONLY supported RAID configuration for AirWave.
NOTE: Software RAID and SATA drives are NOT SUPPORTED for any configuration of AirWave.

RAID Configuration Information

For RAID 1+0:
Dedicated Hardware RAID controller with caching and battery backup or non volatile (NV) cache.
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RAID controller should be configured for Write-Back caching with battery backup (unless NVcache is selected,
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then Force Write-Back without Battery backup is recommended).
Individual Drive Caching should be enabled.
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Ensure that all disks are assigned and configured to a single volume.
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NOTE: Improper RAID configuration can result in drastically reduced server performance.

200 Devices and Below

AirWave 100 and 200 models perform well on a single, fast (spindle speed) disk.

500 Devices

RAID 1+0configuration of four (4) or more 15K SAS drives in a single volume with dedicated Hardware RAID
controller with minimum 256MB of cache and battery backup.

1,000 Devices

RAID 1+0 configuration of four (4) or more 15K SAS drives in a single volume with dedicated Hardware RAID
controller with minimum 256MB of cache and battery backup.

1,750 Devices

RAID 1+0 configuration of six to eight (6-8) or more 15K SAS drives in a single volume with dedicated Hardware
RAID controller with minimum 512MB of cache and battery backup.

2,500 Devices

RAID 1+0 configuration of six to eight (6-8) or more 15K SAS drives in a single volume with dedicated Hardware
RAID controller with minimum 1GB of cache and battery backup.

5,000 Devices - Non-SSD Drives

RAID 1+0 configuration of sixteen (16) or more 15K SAS drives in a single volume with dedicated Hardware RAID
controller with minimum 1GB of cache and battery backup.

5,000 Devices - SSD Drives

AWMS 2,500 - 5,000 device installations with SSDs require Single Level Cell (SLC) Enterprise class SSD drives.
NOTE: Do not use Multi Level Cell (MLC) Consumer class drives. Use of MLC drives can result in drastically reduced SSD drive
lifespan and data loss/volume failure due to write exhaustion.
Dell PowerConnect W-AirWave 7.6 | Server Sizing Guide
Selecting Your Hardware Components | 3