Creating tiered storage with QNAP SAS-enabled series
Storage media selection
Performance
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 tradeoffs 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
PCIe SSD
SSD
SAS HDD
Tier 2
Tier 3
NL-SAS & SATA HDD
Capacity
SAS and SATA storage system performance comparison
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.
Seagate SAS 2.5”
Seagate SAS 2.5”
Seagate NL SAS
Seagate NL SAS
Seagate SATA
Seagate SATA
5,000
4,500
4,000
3,500
3,000
2,500
2,000
1,500
1,000
500
0
7,000
6,000
5,000
4,000
3,000
2,000
1,000
0
(Write)
MB/S
Random IOPS
(Read)
Hard drive
Seagate SAS 2.5"
Seagate NL SAS
Seagate SATA
Write
6527
5195
4300
Read
4835
2832
2441
* 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
Use QNAP SAS-enabled NAS as a tiered storage
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.
SAS SSD storage for IO intensive applications
15K SAS HDD storage for mission critical applications
NL-SAS HDD storage for archiving or cold data
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