How to configure RAID settings for HDD and SSD disks?

Recommended settings for hardware RAID arrays based on HDD:

RAID type: RAID10

Disk cache policy: Default (disabled by default)

Write policy: Write Back

Read policy: Read ahead

Stripe Size: 64K

Recommended settings for hardware RAID arrays based on SSD:

RAID type: RAID1 for 2x SSDs; RAID5 for 3x and more SSDs, or RAID10 for 4x and more pair SSD

Disk cache policy: Default (enabled by default)

Write policy: Write Through

Read policy: No read ahead.

Stripe Size: 64K

Disk Cache Policy: when enabled, allows writing to the cache of the disk prior to the medium

–       For virtual disks having SATA disks underneath, this policy is ENABLED by default;

–       For virtual disks having SAS disks underneath, this policy is DISABLED by default.

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