Cisco UCS C220 M3 Configuration Guide

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RAID 5
RAID 5 includes parity and disk striping at the block level. Parity is the data’s property of being odd or even, and
parity checking is used to detect errors in the data. In RAID 5, the parity information is written to all drives. RAID 5
is best suited for networks that perform a lot of small I/O transactions simultaneously.
RAID 5 is excellent for environments with applications that have high read request rates but low write request
rates. Table 4 provides an overview of RAID 5. Figure 5 shows an example of RAID 5 use.
Table 4. RAID 5
RAID 5
Uses
●
Provides high data throughput, especially for large files
●
Good for transaction processing applications because each drive can read and write independently
●
If a drive fails, the parity drive of the RAID controller is used to re-create all missing information
Advantages
●
Provides data redundancy, high read rates, and good performance in most environments; provides redundancy
with lowest loss of capacity
Limitations
●
Not well suited to tasks requiring numerous write operations
●
Suffers a greater impact if no cache is used (clustering)
●
Drive performance is reduced if a drive is being rebuilt
●
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
Drives
3 through 32
Figure 5. RAID 5 Drive Group with Six Drives
RAID 6
RAID 6 is similar to RAID 5 (it provides disk striping and parity), except that instead of one parity block per stripe,
there are two. With two independent parity blocks, RAID 6 can survive the loss of any two drives in a virtual drive
without losing data. It is well suited for data that requires a very high level of protection from loss.
RAID 6 is excellent for environments with applications that have high read request rates but low write request
rates. Table 5 provides an overview of RAID 6. Figure 6 shows an example of RAID 6 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