HP Z240 User Manual

of a failure). For all software RAID solutions on HP workstations, redundancy can be restored only after the
system is shut down so that the failed drive can be replaced. This replacement requires only a minimum
amount of work.
Performance considerations
Disk I/O bandwidth is typically limited by the system bus speeds, the disk controller, and the disks
themselves. The balance of these hardware limitations, as aected by the software conguration, determines
the location of the any bottleneck is in the system.
Several RAID levels oer improved performance relative to stand-alone disk performance. If disk throughput
is restricted because of a single disk controller, RAID can probably do little to improve performance until
another controller is added. Conversely, if raw disk performance is the bottleneck, a tuned software RAID
solution can dramatically improve the throughput. The slower disk performance is, relative to the rest of the
system, the better RAID performance will scale, because the slowest piece of the performance pipeline is
being directly addressed by moving to RAID.
Conguring software RAID
See the following sites for additional information about conguring software RAID:
●
Red Hat Enterprise Linux 7—See the Storage Administration Guide at https://access.redhat.com/
documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Storage_Administration_Guide/index.html
●
Red Hat Enterprise Linux 6—See the Storage Administration Guide at http://docs.redhat.com/docs/en-
US/Red_Hat_Enterprise_Linux/6/html/Storage_Administration_Guide/index.html
●
Red Hat Enterprise Linux 5—See the Deployment Guide at http://docs.redhat.com/docs/en-US/
Red_Hat_Enterprise_Linux/5/html/Deployment_Guide/ch-raid.html.
●
SLED 12—See the Deployment Guide at https://www.suse.com/documentation/sled-12/
book_sle_deployment/data/sec_yast2_system_raid.html.
●
SLED 11—See the Deployment Guide at http://www.suse.com/documentation/sled11/
book_sle_deployment/?page=/documentation/sled11/book_sle_deployment/data/
book_sle_deployment.html.
●
Ubuntu 14.04 LTS—See the Server Guide at https://help.ubuntu.com/lts/serverguide/advanced-
installation.html or the Community Wiki at https://help.ubuntu.com/community/Installation/
SoftwareRAID.
For more information about Open Source and Linux at HP, go to http://h10018.www1.hp.com/wwsolutions/
linux/index.html.
Software RAID solution 91

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