Automated Tiered Storage System Consisting of Memory and Flash Storage to Improve Response Time with Input-Output (IO) Concentration Workloads

Oe, Kazuichi; Sato, Masaru; Nanri, Takeshi

doi:10.1109/candar.2017.25

Cited by 6 publications

(21 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…ATSMF [22,23] is a hybrid storage system located between NVMs and SSDs to effectively handle IO concentration. Figure 2 shows an overview of ATSMF.…”

Section: Overview Of Atsmfmentioning

confidence: 99%

“…In a previous study [22], however, ATSMF could not sufficiently reduce the response time because it used the Linux brd driver as its NVM access driver, and the brd driver had a slow response time and slow migration speed on joining ATSMF. The response time of the brd driver was more than ten times longer than memory-access speed.…”

Section: Introductionmentioning

confidence: 96%

“…Automated tiered storage with fast memory and slow flash storage (ATSMF) [22] is a hybrid storage system located between non-volatile memories (NVMs) and SSDs. To reduce the response time, ATSMF should be used on a server system with direct-attached storage and executed using applications on the same server system.…”

Section: Introductionmentioning

confidence: 99%

“…ATSMF migrates the area of input-output (IO) concentration from an SSD to an NVM if it predicts that doing so can reduce the average response time. Previous studies [21,22] investigated the workloads of a virtual desktop infrastructure (VDI), online transaction processing (OLTP), a shared file server, web server, and mail server and discussed the characteristics of IO concentration. IO concentration takes up only a small percentage of the storage volume and either remains for a long time or shifts to a neighboring area of the storage volume after several minutes on average.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Non-volatile memory driver to drastically reduce input-output response time and maintain Linux device-mapper framework

Nanri

2020

IJNC

Self Cite

View full text Add to dashboard Cite

Automated tiered storage with fast memory and slow flash storage (ATSMF) is a hybrid storage system located between non-volatile memories (NVMs) and solid state drives (SSDs). ATSMF reduces the average response time for input-output (IO) accesses by migrating concentrated IO-access areas from an SSD to an NVM. However, the current ATSMF implementation cannot sufficiently reduce the average response time because of the bottleneck caused by the Linux brd driver, which is used for the NVM access driver. The response time of the brd driver is more than ten times longer than memory-access speed. To sufficiently reduce the average response time, we developed a block-level driver for an NVM called a "two-mode (2M) memory driver." This driver has a .map-access mode and direct-access mode to reduce the response time while maintaining compatibility with the Linux device-mapper framework. The direct-access mode has a drastically lower response time than the Linux brd driver because the ATSMF driver can directly execute the IO-access function of the 2M memory driver. Experimental results indicate that ATSMF using the 2M memory driver reduced the IO access response time to less than that of ATSMF using the Linux brd driver in most cases.

show abstract

“…ATSMF [22,23] is a hybrid storage system located between NVMs and SSDs to effectively handle IO concentration. Figure 2 shows an overview of ATSMF.…”

Section: Overview Of Atsmfmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Non-volatile memory driver to drastically reduce input-output response time and maintain Linux device-mapper framework

Nanri

2020

IJNC

Self Cite

View full text Add to dashboard Cite

show abstract

“…Another study proposed a method that uses non-volatile memory as a write cache [5]. Automated tiered storage with fast memory and slow flash storage (ATSMF) is a tiered storage system for leveraging non-volatile memory to reduce its response time [6]. Xue The authors are with Okayama University, Okayama, 7008530 Japan (e-mail: sato@cs.okayama-u.ac.jp, tani@cs.okayama-u.ac.jp).…”

Section: Introductionmentioning

confidence: 99%

OFF2F: A New Object File Format for Virtual Memory Systems to Support Volatile/non-Volatile Memory-Mixed Environment

Sato¹,

Takahashi²

2019

IJMLC

View full text Add to dashboard Cite

Research on non-volatile memory has advanced in recent years. Non-volatile memory is not installed on practical computers; however, it will appear in the near future. This study proposes a new executable file format to enable a virtual memory system to support program execution on a volatile and non-volatile memory-mixed computer. To be more precise, this study proposes OFF2F: a new object file format consisting of 2 files, which leverages the characteristics of volatile and non-volatile memories. OFF2F focuses on access form when a program is loaded into memory at program execution. This paper presents evaluation results in terms of reduction of page fault processing time.Index Terms-Volatile memory, executable file format, virtual memory system, demand paging, page fault.

show abstract

Hybrid Storage System to Achieve Efficient Use of Fast Memory Area

Nanri

2019

2019 Seventh International Symposium on Computing and Networking (CANDAR)

View full text Add to dashboard Cite

Automated Tiered Storage System Consisting of Memory and Flash Storage to Improve Response Time with Input-Output (IO) Concentration Workloads

Cited by 6 publications

References 4 publications

Non-volatile memory driver to drastically reduce input-output response time and maintain Linux device-mapper framework

Non-volatile memory driver to drastically reduce input-output response time and maintain Linux device-mapper framework

OFF2F: A New Object File Format for Virtual Memory Systems to Support Volatile/non-Volatile Memory-Mixed Environment

Hybrid Storage System to Achieve Efficient Use of Fast Memory Area

Contact Info

Product

Resources

About