HP xw8400 Quickspecs page 21

QuickSpecs
Storage
NOTE:* Factory Integrated RAID 0 Configuration (Striped Array) and RAID 1 Configuration (Mirrored Array) requires 2 hard drives with
identical speeds, capacity and interface. Hardware RAID is not supported on Linux systems. The Linux kernel, with built-in software
RAID, provides excellent functionality and performance. It is a good alternative to hardware-based RAID. Please visit
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00060684/c00060684.pdf
If your first HD is a SATA drive, the 2nd must be also. Mixing SATA and SAS is not supported under Linux.
DA - 12522 North America — Version 28 — February 22, 2008
HP xw8400 Workstation
3.
4. Hard drive 5 must be the
same as hard drive 4.
In non-mixed Microsoft Windows
and Linux systems, rules 2 & 3
apply.
Configure-to-order RAID configs
must all have the same
size/speed hard drives.
Up to 4 channels of SAS/SATA
can be supported natively.
Using external enclosures, an
additional 6 channels of SATA
3.0Gb/s can be supported.
for RAID capabilities with Linux.
Page 21