QNAP TS-EC2480U-RP User Manual

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Solid state drives (SSDs) and 15K SAS hard drives 
offer exceptional performance; however, compared 
to SATA hard disk drives (HDDs) they have much less 
capacity per drive and are much more expensive. 
Additionally, each enterprise application workload has 
different capacity and performance requirements. 
Consequently, the challenge before IT departments is 
to navigate the price, performance, and capacity trade-
offs between SSDs, SAS HDDs and SATA HDDs to 
determine the best, most cost effective drive type for 
each application workload type.
Tier 0
Tier 1
Tier 2
Tier 3
Performance
SAS HDD
NL-SAS & SATA HDD
SSD
PCIe SSD
Capacity
Storage media selection
Creating tiered storage with QNAP SAS-enabled series
To balance the price and cost, a “tiered” (according to performance and capacity) data storage system is helpful to process various tier-types of 
data more efficiently and thus significantly increase the overall operational efficiency of the business. QNAP’s SAS-enabled Turbo NAS models 
can flexibly configure different tiers to hard drives on a single unit according to different data usage needs, delivering the best unified and tiered 
storage solutions for businesses.
Use QNAP SAS-enabled NAS as a tiered storage
SAS SSD storage for IO intensive applications
15K SAS HDD storage for mission critical applications
NL-SAS HDD storage for archiving or cold data
* Testing environment:
  1. NAS model : TS-EC1679U-SAS-RP
  2.  HDD : Seagate TS9300653SS (2.5"SAS) x8, Seagate TS4000NM0023 (NL-SAS) x8, Seagate ST4000NM0033 (SATA) x 8
  3. RAID Type : RAID5
SAS and SATA storage system performance comparison
(Write)
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
Seagate SAS 2.5” 
Seagate NL SAS  
Seagate SATA      
(Read)
0
500
1,000
1,500
2,000
2,500
3,000
3,500
4,000
4,500
5,000
Seagate SAS 2.5” 
Seagate NL SAS   
Seagate SATA   
MB/S
Hard drive 
Seagate SAS 2.5" 
Seagate NL SAS 
Seagate SATA 
Random IOPS
Write
6527
5195
4300
Read
4835
2832
2441
SAS-enabled storage systems deliver better IOPS performance and are ideal for applications requiring large amounts of random accessing 
such as online transaction processing (OLTP) and Mail Servers. 
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