HP Z240 User Manual

Conguring RAID with the Intel utility
Follow these steps to create RAID volumes.
1. Press ctrl+I when prompted, to enter the Intel Rapid Storage Technology utility (RST). Use the arrow keys
and the space bar to navigate and select options.
NOTE: If only one hard drive is attached, the utility does not open.
2. Select Create RAID Volume, and then press enter.
3. Type the a name for the RAID volume in the Name eld, and then press tab.
4. Select a level in the RAID Level eld, and then press tab.
5. If three or more hard drives are installed, complete the following steps:
a. Press enter to display the Select dialog box.
b. Select individual physical members of the volume.
c. Press enter to exit the Select dialog box and to return to the Create Volume Menu dialog box.
6. If appropriate, select a size in the Stripe Size eld, and then press tab.
7. Enter the desired volume size in the Capacity eld, and then press tab.
8. Press enter to initiate volume creation.
9. When the warning message appears, press Y to create the volume.
10. Select 6 > Exit, then press enter.
11. Press Y to conrm the exit.
Software RAID solution
This section summarizes software RAID considerations that are specic to the Linux environment, and
provides links to additional conguration resources.
Software RAID considerations
The Linux kernel software RAID driver (called md, for multiple device) oers integrated software RAID without
the need for additional hardware disk controllers or kernel patches. Unlike most hardware RAID solutions,
software RAID can be used with all types of disk technologies, including SATA, SCSI, and solid-state drives.
This software solution requires only minimal setup of the disks themselves.
However, when compared to hardware-based RAID, software RAID has disadvantages in managing the disks,
breaking up data as necessary, and managing parity data. The CPU must assume some extra loading: disk-
intensive workloads result in roughly double the CPU overhead (for example, from 15% to 30%). For most
applications, this overhead is easily handled by excess headroom in the processors. But for some applications
where disk and CPU performance are very well balanced and already near bottleneck levels, this additional
CPU overhead can become troublesome.
Hardware RAID oers advantages because of its large hardware cache and the capability for better
scheduling of operations in parallel. However, software RAID oers more exibility for disk and disk controller
setup. Additionally, hardware RAID requires that a failed RAID controller must be replaced with an identical
model to avoid data loss, whereas software RAID imposes no such requirements.
Some software RAID schemes oer data protection through mirroring (copying the data to multiple disks in
case one disk fails) or parity data (checksums that allow error detection and limited rebuilding of data in case
90 Appendix B Conguring RAID devices

HP Z240 Specifications

General

Chassis type	Tower
Product color	Black
Country of origin	China
Water cooling system	No
Product type	Workstation
Motherboard chipset	Intel® C236
Memory slots	4x DIMM
Internal memory	8 GB
Memory channels	Dual-channel
Memory clock speed	2133 MHz
Internal memory type	DDR4-SDRAM
Maximum internal memory	64 GB
Memory layout (slots x size)	2 x 4 GB
HDD speed	7200 RPM
HDD interface	SATA
Storage media	HDD
Optical drive type	DVD Super Multi
Card reader integrated	-
Total storage capacity	1000 GB
Number of HDDs installed	1
On-board graphics card ID	0x191D
Discrete graphics card model	Not available
On-board graphics card model	Intel® HD Graphics P530
Graphics card Open GL support	Yes
On-board graphics card family	Intel® HD Graphics
Maximum on-board graphics card memory	1 GB
On-board graphics card OpenGL version	4.4
On-board graphics card base frequency	400 MHz
On-board graphics card DirectX version	12.0
On-board graphics card dynamic frequency (max)	1150 MHz
Number of displays supported (on-board graphics)	3
Power supply	400 W
Recovery operating system	Windows 10 Pro
Operating system installed	Windows 7 Professional
Operating system architecture	64-bit
Ethernet LAN data rates	10, 100, 1000 Mbit/s
USB 2.0 ports quantity	4
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	6
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity	0
Tcase	- °C
Bus type	DMI3
Stepping	R0
Processor cache	8 MB
Processor model	E3-1245V5
System bus rate	8 GT/s
Processor series	Intel Xeon E3-1200 v5
Processor socket	LGA 1151 (Socket H4)
Processor threads	8
Processor codename	Skylake
Processor frequency	3.5 GHz
Processor cache type	Smart Cache
Configurable TDP-down	- W
Processor lithography	14 nm
Processor manufacturer	Intel
PCI Express slots version	3.0
Processor boost frequency	3.9 GHz
PCI Express configurations	1x16, 1x8+2x4, 2x8
Thermal Design Power (TDP)	80 W
Maximum number of PCI Express lanes	16
Memory types supported by processor	DDR3L-SDRAM, DDR4-SDRAM
Memory voltage supported by processor	1.35 V
Memory clock speeds supported by processor	1333, 1600, 1866, 2133 MHz
Memory bandwidth supported by processor (max)	34.1 GB/s
Scalability	1S
Processor ARK ID	88173
Processor package size	37.5 x 37.5 mm
Supported instruction sets	AVX 2.0, SSE4.1, SSE4.2
Intel Secure Key Technology version	1.00

Weight and Dimensions

Depth	442 mm
Width	170 mm
Height	399 mm
Weight	8600 g