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Promise Technology Pegasus3 R4 User Manual

Promise Technology Pegasus3 R4
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168
Promise Technology
Pegasus3 R4/R6/R8
A RAID 6 on Pegasus R6 consists of four to six physical drives.
RecommendedApplicationsforRAID6:
• Accounting and Financial
• Database servers
• Any application requiring very high availability
RAID 10 – Mirror + Stripe
Mirror + Stripe combines both of the RAID 1 and RAID 0 logical drive types. RAID
10 can increase performance by reading and writing data in parallel or striping, and duplicating the
data, or mirroring.
PROMISE implements RAID 10 by creating a data stripe over one pair of disk drives, then mirroring the
stripe over a second pair of disk drives. Some applications refer to this method as RAID 0+1.
PROMISE RAID 10 starts with a data stripe, then mirrors it
Advantages Disadvantages
• High Read data transaction rate
• Medium Write data transaction rate
• Good aggregate transfer rate
• High disk overhead – equivalent of two
drives used for parity
• Slightly lower performance than RAID 5
1. Data Stripe
2. Data Mirror
Disk Drives

Table of Contents

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Promise Technology Pegasus3 R4 Specifications

General IconGeneral
InternalNo
Chassis typeTower
Cooling typeActive
Device classSmall & Medium Business
Fan diameter92 mm
CertificationCB, UL, cUL, TUV , BSMI, SPRING, BIS FCC, CE-EMC, VCCI, BSMI, RCM KCC
Product colorBlack
LED indicatorsYes
Number of fans1 fan(s)
Airflow (imperial)70 cfm
Management platformPegasus Utility
Cable lock slot typeKensington
RAID levels0, 1, 1E, 5, 6, 10
Data transfer rate40 Gbit/s
Storage drive size3.5 \
Storage drive capacity4000 GB
Storage drive interfaceSerial ATA
Installed storage drive typeHDD
Supported storage drive typesHDD & SSD
Total installed storage capacity16 TB
Maximum supported storage capacity- TB
Number of storage drives installed4
AC input voltage100-230 V
AC input frequency50 - 60 Hz
Number of power supply units1
Power supply unit (PSU) capacity250 W
Thunderbolt version3
Thunderbolt ports quantity2
Storage temperature (T-T)-40 - 70 °C
Operating temperature (T-T)5 - 35 °C
Storage relative humidity (H-H)5 - 95 %
Operating relative humidity (H-H)10 - 95 %
Cables includedAC, Thunderbolt
Weight and Dimensions IconWeight and Dimensions
Depth188 mm
Width248 mm
Height195 mm
Weight6800 g

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