Cisco UCS C220 M3 Configuration Guide

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Table 5. RAID 6
RAID 6
Uses
●
Office automation and online customer service that require fault tolerance
●
Any application that has a high read request rate
Advantages
●
Provides data redundancy, high read rates, and good performance in most environments
●
Can survive the loss of two drives or the loss of a drive while another drive is being rebuilt
●
Provides the highest level of protection against drive loss or the loss of a drive while another drive is being
rebuilt
●
Provides the highest level of protection against drive failures of all the RAID levels
●
Provides read performance similar to that of RAID 5
Limitations
●
Not well suited to tasks requiring numerous write operations; RAID 6 virtual drive has to generate two sets of
parity data for each write operation, which results in a significant decrease in performance during write
operations
●
Drive performance is reduced during a drive rebuild
●
Not well suited for environments with few processes; such environments do not perform as well because the
RAID overhead is not offset by the performance gains in handling simultaneous processes
●
Costs more because of the additional capacity required—two parity blocks per stripe
Drives
3 through 32
Figure 6. RAID 6 with Distributed Parity Across Two Blocks in a Stripe
RAID 10
Virtual drives defined across multiple RAID 1 drive groups are referred to as RAID 10 (1 + 0). RAID 10 creates
striped data across mirrored spans. The RAID 10 drive group is a spanned drive group that creates a striped set
from a series of mirrored drives. The RAID 1 virtual drives must have the same stripe size. Spanning is used
because one virtual drive is defined across more than one drive group. Data is striped across drive groups to
increase performance by enabling access to multiple drive groups simultaneously.
Configure RAID 10 by spanning two contiguous RAID 1 virtual drives, up to the maximum number of supported
devices for the controller. RAID 10 supports a maximum of eight spans, with a maximum of 32 drives per span.
You must use an even number of drives in each RAID 10 virtual drive in the span.
RAID 10 is excellent for environments that require a higher degree of fault tolerance and medium-sized capacity.
Table 6 provides an overview of RAID 10. Figure 7 shows an example of RAID 10 use.

Cisco UCS C220 M3 Specifications

General

Tcase	70 °C
Bus type	QPI
Stepping	M1
FSB Parity	No
Scalability	2S
Processor cache	10 MB
Processor cores	4
System bus rate	6.4 GT/s
Processor series	Intel Xeon E5-2600
Processor socket	LGA 2011 (Socket R)
Processor codename	Sandy Bridge EP
Processor frequency	2.4 GHz
Processor cache type	Smart Cache
Processor manufacturer	Intel
Processor package size	52.5 x 45.0 mm
Processor front side bus	- MHz
Processor boost frequency	2.50 GHz
Processor operating modes	64-bit
ECC supported by processor	Yes
Graphics & IMC lithography	32 nm
PCI Express configurations	x4, x8, x16
Supported instruction sets	AVX
Thermal Design Power (TDP)	80 W
Number of processors installed	2
CPU multiplier (bus/core ratio)	24
Physical Address Extension (PAE)	46 bit
Maximum number of PCI Express lanes	40
Memory types supported by processor	DDR3-SDRAM
Memory channels supported by processor	Quad
Memory clock speeds supported by processor	800, 1066 MHz
Memory bandwidth supported by processor (max)	34.1 GB/s
Maximum internal memory supported by processor	750 GB
HDD size	2.5 \
HDD interface	-
Total storage capacity	500 GB
Compatible memory cards	SD
Maximum storage capacity	- TB
Memory slots	16
Internal memory	32 GB
Memory clock speed	1866 MHz
Maximum internal memory	- GB
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Ethernet LAN (RJ-45) ports	3
Chassis type	Rack (1U)
Power supply	450 W
Safety	UL 60950-1 No. 21CFR1040, CAN/CSA-C22.2 No. 60950-1, IEC 60950-1, EN 60950-1, IEC 60950-1, AS/NZS 60950-1, GB4943 2001
Certification	47CFR Part 15 (CFR 47), AS/NZS CISPR22, CISPR2 2, EN55022, ICES003, VCCI, EN61000-3-2, EN61000-3-3, KN22, CNS13438, EN55024, CISPR24, EN300386, KN24
Operating altitude	0 - 3000 m
Non-operating altitude	0 - 12000 m
Storage temperature (T-T)	-40 - 70 °C
Operating temperature (T-T)	0 - 40 °C
Storage relative humidity (H-H)	5 - 93 %
Operating relative humidity (H-H)	10 - 90 %
PCI Express slots version	3.0
Processor ARK ID	64588
Intel Secure Key Technology version	1.00
Intel Identity Protection Technology version	0.00
Harmonized System (HS) code	84714100

Weight and Dimensions

Depth	724 mm
Width	430 mm
Height	43.2 mm