title: ÐÐ²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð°ÑÐ¸Ñ ÑÐµÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´Ð¸ÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ Ð¸ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ð¾Ð² Ð´ÐµÑÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¿Ð¾ÑÐ»ÐµÐ´Ð¾Ð²Ð°ÑÐµÐ»ÑÐ½ÑÑ Ð·Ð°Ð¿ÑÐ¾ÑÐ¾Ð² Ð´Ð»Ñ ÑÐ¿ÑÐµÐ¶Ð´Ð°ÑÑÐµÐ³Ð¾ ÑÑÐµÐ½Ð¸Ñ Ð¡Ð¥Ð
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Performance testing automatization and sequential requests detection algorithms research for read ahead mechanism
Creators: name: ÐÐµÑÑÑÐ½Ð¸Ð½, ÐÑÐ¸Ð³Ð¾ÑÐ¸Ð¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: raid Ð¼Ð°ÑÑÐ¸Ð²Ñ
ÑÐ¸ÑÑÐµÐ¼Ñ Ñ ÑÐ°Ð½ÐµÐ½Ð¸Ñ Ð´Ð°Ð½Ð½ÑÑ
Ð´ÐµÑÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¿Ð¾ÑÐ»ÐµÐ´Ð¾Ð²Ð°ÑÐµÐ»ÑÐ½ÑÑ Ð·Ð°Ð¿ÑÐ¾ÑÐ¾Ð²
ÑÐ¿ÑÐµÐ¶Ð´Ð°ÑÑÐµÐµ ÑÑÐµÐ½Ð¸Ðµ
raid arrays
data storage systems
sequential requests detection
read ahead mechanism

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°ÑÐµÐ»ÑÑÐºÐ¾Ð¹ Ð±Ð°Ð·Ñ Ð´Ð»Ñ Ð¼Ð¾Ð´Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ ÑÑÐ°Ð½ÐµÐ½Ð¸Ñ Ð´Ð°Ð½Ð½ÑÑ RAIDIX Ð¿ÑÑÐµÐ¼ Ð²ÑÑÐ²Ð»ÐµÐ½Ð¸Ñ ÑÐ¿Ð¾ÑÐ¾Ð±Ð¾Ð² Ð¾Ð¿ÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ð¸ ÑÑÑÐµÑÑÐ²ÑÑÑÐµÐ³Ð¾ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ð° ÑÐ¿ÑÐµÐ¶Ð´Ð°ÑÑÐµÐ³Ð¾ ÑÑÐµÐ½Ð¸Ñ IRA (Integral Read Ahead). Ð¡Ð¿Ð¸ÑÐ¾Ðº Ð·Ð°Ð´Ð°Ñ, ÐºÐ¾ÑÐ¾ÑÑÐµ ÑÐµÑÐ°Ð»Ð¸ÑÑ Ð² ÑÐ¾Ð´Ðµ Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ñ ÑÐ°Ð±Ð¾ÑÑ: 1. ÐÐ·ÑÑÐµÐ½Ð¸Ðµ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐµÐ¹ ÑÐ°Ð±Ð¾ÑÑ Ð¡Ð¥Ð Ð¸ Ð´Ð¾ÑÑÑÐ¿Ð½ÑÑ Ð±ÐµÐ½ÑÐ¼Ð°ÑÐº-ÑÑÐ¸Ð»Ð¸Ñ ÑÐµÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´Ð¸ÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸. 2. Ð ÐµÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ ÑÑÐµÐ¹Ð¼Ð²Ð¾ÑÐºÐ° Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð³Ð¾ ÑÐµÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð´Ð»Ñ Ð¿ÑÐ¾Ð´Ð¾Ð»Ð¶Ð¸ÑÐµÐ»ÑÐ½ÑÑ Ð¸ÑÐ¿ÑÑÐ°Ð½Ð¸Ð¹ Ð±Ð¾Ð»ÑÑÐ¾Ð¹ ÑÐµÑÐºÐ¸ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð² Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ð° IRA. 3. ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¸Ðµ Ð¸ÑÐ¿ÑÑÐ°Ð½Ð¸Ð¹ Ð½Ð° Ð²ÑÐ´ÐµÐ»ÐµÐ½Ð½Ð¾Ð¼ Ð¿Ð¾Ð»Ð¸Ð³Ð¾Ð½Ðµ Ð¸ Ð°Ð½Ð°Ð»Ð¸Ð· ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¾Ð². 4. Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð³Ð¾ Ð¾Ð±ÐµÑÐ¿ÐµÑÐµÐ½Ð¸Ñ Ð´Ð»Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ð¹ ÐºÐ°ÑÐµÑÑÐ²Ð° ÑÐ°Ð±Ð¾ÑÑ Ð¼Ð¾Ð´ÑÐ»Ñ Ð´ÐµÑÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¿Ð¾ÑÐ»ÐµÐ´Ð¾Ð²Ð°ÑÐµÐ»ÑÐ½Ð¾ÑÑÐµÐ¹ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ð° IRA. Ð Ð°Ð±Ð¾ÑÐ° Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð° Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ ÐÐ Ð¸ Ð´Ð¾ÐºÑÐ¼ÐµÐ½ÑÐ°ÑÐ¸Ð¸, Ð¿Ð¾ÑÑÐ°Ð²Ð»ÑÐµÐ¼ÑÑ ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸ÐµÐ¹ Â«RAIDIXÂ». Ð Ð°Ð·Ð²Ð¾ÑÐ°ÑÐ¸Ð²Ð°Ð½Ð¸Ðµ Ð¡Ð¥Ð Ð¸ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð½ÑÑ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼ Ð´Ð»Ñ Ð¸ÑÐ¿ÑÑÐ°Ð½Ð¸Ð¹ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´Ð¸Ð»Ð¾ÑÑ ÐºÐ°Ðº Ð½Ð° Ð²Ð½ÑÑÑÐµÐ½Ð½Ð¸Ñ Ð²ÑÐ´ÐµÐ»ÐµÐ½Ð½ÑÑ ÑÐµÑÐ²ÐµÑÐ°Ñ (Ð¿Ð¾Ð»Ð¸Ð³Ð¾Ð½Ð°Ñ) ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ð¸, ÑÐ°Ðº Ð¸ Ð½Ð° Ð¿Ð¾Ð»Ð¸Ð³Ð¾Ð½Ðµ ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ð¸ Ð¿Ð°ÑÑÐ½ÐµÑÐ°. ÐÑÐ»Ð¾ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¾ Ð¼Ð°ÑÑÑÐ°Ð±Ð½Ð¾Ðµ Ð¿ÑÐ¾Ð´Ð¾Ð»Ð¶Ð¸ÑÐµÐ»ÑÐ½Ð¾Ðµ ÑÐµÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ ÐºÐ¾Ð½ÑÐ¸Ð³ÑÑÐ°ÑÐ¸Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ, Ð² ÑÐ°ÑÑÐ½Ð¾ÑÑÐ¸ Ð¿ÑÐ¸ Ð¼Ð½Ð¾Ð¶ÐµÑÑÐ²Ðµ ÐºÐ¾Ð¼Ð±Ð¸Ð½Ð°ÑÐ¸Ð¹ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð² Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ð° ÑÐ¿ÑÐµÐ¶Ð´Ð°ÑÑÐµÐ³Ð¾ ÑÑÐµÐ½Ð¸Ñ. Ð ÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ð¸ÑÐ¿ÑÑÐ°Ð½Ð¸Ð¹ Ð¿ÑÐ¸Ð²ÐµÐ»Ð¸ Ðº Ð²ÑÐ²Ð¾Ð´Ñ Ð¾ Ð½ÐµÐ¾Ð±ÑÐ¾Ð´Ð¸Ð¼Ð¾ÑÑÐ¸ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ¸ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°ÑÐµÐ»ÑÑÐºÐ¾Ð¹ Ð±Ð°Ð·Ñ (ÐÐ) Ð´Ð»Ñ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° ÑÐ°Ð±Ð¾ÑÑ Ð´ÐµÑÐµÐºÑÐ¾ÑÐ° Ð¿Ð¾ÑÐ»ÐµÐ´Ð¾Ð²Ð°ÑÐµÐ»ÑÐ½ÑÑ Ð·Ð°Ð¿ÑÐ¾ÑÐ¾Ð² Ð²Ð½Ðµ Ð¡Ð¥Ð Ð¿ÑÑÐµÐ¼ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÑÐ°ÑÑÐ¸ÑÐ¾Ð²Ð¾ÑÐ½ÑÑ Ð´Ð°Ð½Ð½ÑÑ
description: The given work is devoted to designing of research base for RAIDIX data storage system modification via revealing ways to optimize itâs current IRA (Integral Read Ahead) algorithm. List of goals set by the research: 1. Studying features of data storage systems processes and available storage performance benchmarks utilities. 2. Implementation of automated testing framework for long lasting tests of large parameter grid of IRA algorithm. 3. Testing and results analysis. 4. Development of software for IRA algorithm detection module accuracy researching. The work was done with use of RAIDIX software and documentation. Data storage system and developed programs were deployed on RAIDIX company and itâs partners servers. A large number of configurations among with read ahead algorithm parameters grid were tested. Results led to conclusion about the need of development of research environment for sequential requests detector with trace data without usage of storage system.