EasyManuals Logo

Promise Technology Pegasus3 R4 User Manual

Promise Technology Pegasus3 R4
232 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #178 background imageLoading...
Page #178 background image
165
Technology BackgroundPegasus3 Product Manual
Advantages Disadvantages
• Simplest RAID level
• Can increase read performance by
processing data requests in parallel
since the same data resides on two
different drives
• Very high disk overhead – uses only 50% of
total capacity
RecommendedApplicationsforRAID1:
• Accounting
• Payroll
• Financial
• Any application requiring very high availability
RAID 1E Enhanced Mirror
RAID 1E offers the security of mirrored data provided by RAID 1 plus the added capacity of more than
twophysicaldrives.Italsooffersoverallincreasedread/writeperformanceplustheexibilityofusingan
odd number of physical drives. With RAID 1E, each data stripe is mirrored onto two physical drives. If
one drive fails or has errors, the other drives continue to function, providing fault tolerance.
RAID 1E can mirror data over an odd number of drives
The advantage of RAID 1E is the ability to use an odd number of physical drives, unlike RAID 1
and RAID 10. You can also create a RAID 1E Logical Drive with an even number of physical drives.
However, with an even number of drives, you obtain somewhat greater security with comparable
performance using RAID 10.
RAID 1E logical drives consist of three or more physical drives. You can create an array with just two
physical drives and specify RAID 1E. But the resulting array is actually a RAID 1.
Physical Drives
Enhanced Data Mirrors

Table of Contents

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the Promise Technology Pegasus3 R4 and is the answer not in the manual?

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

Related product manuals