PRODUCT CATALOG
7
IOPS/$ (Performance Per Dollar)
GB/$ (Capacity Per Dollar)
10 krpm
HDD
15 krpm
HDD
7,200 rpm
HDD
High-end servers
High-end storage systems
Mid-range servers
Storage systems
Data centers
eSSD
Ultra-high
performance
High
performance
High
capacity
Tier 1
5%
Tier 2
15%
Tier 3
80%
eSSD
10 krpm
HDD
7,200 rpm
HDD
20%
Storage Capacity
Access Speed
Total System IOPS*12 [kIOPS]
Power Consumption Efficiency*11 [IOPS/W]
Access Speed
Non-Tiered
Tiered
Power Consumption Efficiency
Non-Tiered
Tiered
Approx.
7.5x
Approx.
17x
Power-Savings
Power Consumption [W]
Drive Count [units]
Drive Count
Non-Tiered
Tiered
Tiered
Non-Tiered
Approx.
55%
Less
Approx.

2/3

Less
eSSD 10 krpm HDD 7,200 rpm HDD
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SSDs provide faster random access performance than HDDs. Therefore, when used as cache and storage, SSDs help improve the overall performance of servers and storage systems. SSDs are also a suitable solution to improve the performance of industrial equipment.
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Uses NAND flash memory specifically designed for enterprise applications to provide enhanced reliability.
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Supports the Power Loss Protection feature to safeguard data against temporary power interruption.
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Offers excellent Power Consumption Efficiency*11 (IOPS/W), reducing the total cost of ownership (TCO) for an overall system.
SSD/HDD Characteristics
*11: Power Consumption Efficiency (IOPS/W): IOPS per watt consumed *12: IOPS: Input/Output Per Second (or the number of I/O operations per second)

Features of Enterprise SSDs

Tiered storage combines high-speed enterprise SSDs and low-cost, high-capacity HDDs, as opposed to conventional storage that
consists of only enterprise HDDs. Compared to the conventional storage system, a tiered storage system improves access
performance by approx. 7.5 times, eliminating I/O bottlenecks. Compared with the conventional storage system, the tiered storage
system cuts the number of drives by approx. two-thirds and cuts power consumption by approx. 55%. The tiered storage system
greatly reduces the total cost of ownership (TCO) and contributes to a reduction in environmental impact. (Estimates by Toshiba)
Toshiba offers a suitable portfolio of enterprise SSDs and HDDs needed to build tiered storage systems. You can select storage
products that best fit your needs.
Benefits of a Tiered Storage System
Drive
eSSD
10 krpm HDD
7,200 rpm HDD
Capacity
1.6 TB
900 GB
4 TB
# Units
10
50
60
Capacity Ratio
5%
15%
80%
Drive
10 krpm HDD
Capacity
900 GB
# Units
334
Capacity Ratio
100%
10 krpm
HDD
eSSD
10 krpm
HDD
7,200 rpm
HDD

Tiered Storage System

Benefits of a Tiered Storage System Using eSSDs (Example Estimated for a 300-TB Storage System)
According to an access model of a typical enterprise storage system, 80% of all accesses are made to 20% of data. By storing the 20% most frequently accessed data in eSSDs with fast access times and high-speed HDDs, you can dramatically reduce the overall drive count and power consumption while increasing data throughput.
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Storage Organization
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Storage Organization
MK4001GRZB
MK2001GRZB
MK1001GRZB
PX02SMB160
PX02SMF080
PX02SMF040
PX02SMF020
400 GB
200 GB
100 GB
1.6 TB
800 GB
400 GB
200 GB
Seq.Write
Data Transfer Rate
(sustained)(MB/s)
Seq.Read
5
12
5
12
O
O
6.5
9.0
8.5
0-55
SAS
6 Gbps
512
520
528
512
520
528
4096
4160
4224
15.00
69.85
100.45
7.00
69.85
100.00
500
900 400
250 160
170
70
SLC
SAS
6 Gbps /
12 Gbps
eMLC
Enterprise SSDs
0-55
Write
IOPS*12 (sustained)
Read / Write
(4-kB Random)*5
Read
90,000
120,000
16,000
25,000
Capacity*
4
Average
Power
Consumption
(W Typ.)
Supply
Voltage
(V)
Weight
(g Max)
Ambient
Temp.
(˚C)
Power
Loss
Protection
Interface
Sector
Size
(bytes)
NAND
Type
Model
Dimensions
Height / Width / Length
(mm)
O
Encrypt.
(Optional)
Conventional Non-Tiered HDD Storage SystemTiered Storage System Using eSSDs