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Google SRE - Site Reliability engineering
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Content" title="Jump to Content"> <p class="glue-header__skip-content-text">Jump to Content</p> </a> </div> </div> </div> </div> <div class="glue-header__drawer-backdrop"></div> </header> <main class="main-content" id="page-content"> <div class="home-page glue-mod-spacer-6-top"> <div class="glue-page glue-mod-text-center"> <h1 class="glue-headline glue-headline--headline-2 glue-mod-spacer-5-top home-page-heading">What is Site Reliability Engineering (SRE)?</h1> <p class="glue-mod-spacer-2-top home-page-sub-heading home-page-headline home-page-heading">SRE is what you get when you treat operations as if it’s a software problem. Our mission is to protect, provide for, and progress the software and systems behind all of Google’s public services — Google Search, Ads, Gmail, Android, YouTube, and App Engine, to name just a few — with an ever-watchful eye on their availability, latency, performance, and capacity.</p> </div> <section class="glue-page"> <div class="glue-mod-spacer-4-top"> <div class="glue-carousel glue-carousel--simple sre-carousel-autostart" data-glue-pagination="sre-carousel-autostart"> <div class="glue-carousel__wrap"> <div class="glue-carousel__list"> <div class="glue-carousel__item home-page-item"> <div class="glue-carousel__image"> <img src="https://kstatic.googleusercontent.com/files/892285cb5463651fea6970063486201883863c5d04ec11ae5fa772ff9cb1feb2ae29072950021eb0e71509a8f329b2addd7eeebf0f94adad43c26922e2866c8a" class="mobile-image" alt="Museum of Borgmon Abstract Act" width="1152" height="640"> <img src="https://lh3.googleusercontent.com/UhWXIvN7HcRAOBiFZkPtyHsPhvevPN-z_IDnMdlmDU4L2YCPqmd1viwyBv2USH2wBsOM1vUVH06vWwse1JT7j9em5xz1IqvNzMQJmNKtvBK8djDKw7E=w1028-rw" class="desktop-image" alt="Museum of Borgmon Abstract Act" width="1069" height="502"> </div> <div class="home-page-carousel-wrapper mobile-image"> <h2 class="glue-headline glue-headline--headline-3">Museum of Borgmon Abstract Act</h2> <p class="glue-mod-spacer-2-bottom glue-mod-spacer-2-top home-page-slide-description">Explore more of the beauty that emerges from chaos, in this biennial collection of images from our monitoring systems.</p> <a class="glue-body--large" href="mobaa/2024/" title="Read more" aria-label="Read more"> <button class="glue-button glue-button--medium-emphasis home-page-read-more" aria-label="Read more">Read more <svg role="img" class="glue-icon glue-icon--18px" alt="" aria-hidden="true"> <use xlink:href="/static/img/glue-icons.svg#arrow-forward"></use> </svg> </button> </a> </div> <div class="home-page-carousel desktop-image"> <div class="home-page-carousel-content"> <h2 class="glue-headline glue-headline--headline-3">Museum of Borgmon Abstract Act</h2> <p class="glue-mod-spacer-2-bottom glue-mod-spacer-2-top home-page-slide-description">Explore more of the beauty that emerges from chaos, in this biennial collection of images from our monitoring systems.</p> <a class="glue-body--large" href="mobaa/2024/" title="Read more" aria-label="Read more"> <button class="glue-button glue-button--medium-emphasis home-page-read-more" aria-label="Read more">Read more <svg role="img" class="glue-icon glue-icon--18px" alt="" aria-hidden="true"> <use xlink:href="/static/img/glue-icons.svg#arrow-forward"></use> </svg> </button> </a> </div> </div> </div> <div class="glue-carousel__item home-page-item"> <div class="glue-carousel__image"> <img src="https://kstatic.googleusercontent.com/files/4782a313e3cdd6cbe3346d30d1d1cb6778950ceb535f955d91c84f80eacb10a1f8fa164af5471ce0b188c1fcfe27c7e877aad9b350411c6a8a8fddd6b02b4400" class="mobile-image" alt="SRE Careers" width="1152" height="640"> <img src="https://lh3.googleusercontent.com/UlNkZVGWPbzXBbbWVMVlTl0lBv2N51qEIYDnp4STILLcbXwJh1iTwhBGXPlusqrl0ymRYc82YXd-VrqxJBJRXWPzmPzEI5iYyHcsAjVUonFdSzq0LE4N=w1028-rw" class="desktop-image" alt="SRE Careers" width="1069" height="502"> </div> <div class="home-page-carousel-wrapper mobile-image"> <h2 class="glue-headline glue-headline--headline-3">SRE Careers</h2> <p class="glue-mod-spacer-2-bottom glue-mod-spacer-2-top home-page-slide-description">Hear from some of our most senior<br> engineers about their role at Google.</p> <a class="glue-body--large" href="/careers/" title="Read more" aria-label="Read more"> <button class="glue-button glue-button--medium-emphasis home-page-read-more" aria-label="Read more">Read more <svg role="img" class="glue-icon glue-icon--18px" alt="" aria-hidden="true"> <use xlink:href="/static/img/glue-icons.svg#arrow-forward"></use> </svg> </button> </a> </div> <div class="home-page-carousel desktop-image"> <div class="home-page-carousel-content"> <h2 class="glue-headline glue-headline--headline-3">SRE Careers</h2> <p class="glue-mod-spacer-2-bottom glue-mod-spacer-2-top home-page-slide-description">Hear from some of our most senior<br> engineers about their role at Google.</p> <a class="glue-body--large" href="/careers/" title="Read more" aria-label="Read more"> <button class="glue-button glue-button--medium-emphasis home-page-read-more" aria-label="Read more">Read more <svg role="img" class="glue-icon glue-icon--18px" alt="" aria-hidden="true"> <use xlink:href="/static/img/glue-icons.svg#arrow-forward"></use> </svg> </button> </a> </div> </div> </div> <div class="glue-carousel__item home-page-item"> <div class="glue-carousel__image"> <img src="https://kstatic.googleusercontent.com/files/09c672dad8616ab3c48884add7f20e785de3df110e0ea4861bd18552e60fc1d3e2e75149621a9bf78167b77526e79331f11172be5c10db8ea2c847cc627a116b" class="mobile-image" alt="SRE Resources" width="1152" height="640"> <img src="https://lh3.googleusercontent.com/lfDd051503YIQ6vwDyrdzZUbCZ_xli9Bryl3QsyIGaoUPLDst8HnSHlXyqbB7u_Omj1mTpqePKBg4LrRPZqjPtHCe3GrIno14CeV=w1028-rw" class="desktop-image" alt="SRE Resources" width="1069" height="502"> </div> <div class="home-page-carousel-wrapper mobile-image"> <h2 class="glue-headline glue-headline--headline-3">SRE Resources</h2> <p class="glue-mod-spacer-2-bottom glue-mod-spacer-2-top home-page-slide-description">A curated list of Site Reliability and Production Engineering resources.</p> <a class="glue-body--large" href="/resources/" title="Read more" aria-label="Read more"> <button class="glue-button glue-button--medium-emphasis home-page-read-more" aria-label="Read more">Read more <svg role="img" class="glue-icon glue-icon--18px" alt="" aria-hidden="true"> <use xlink:href="/static/img/glue-icons.svg#arrow-forward"></use> </svg> </button> </a> </div> <div class="home-page-carousel desktop-image"> <div class="home-page-carousel-content"> <h2 class="glue-headline glue-headline--headline-3">SRE Resources</h2> <p class="glue-mod-spacer-2-bottom glue-mod-spacer-2-top home-page-slide-description">A curated list of Site Reliability and Production Engineering resources.</p> <a class="glue-body--large" href="/resources/" title="Read more" aria-label="Read more"> <button class="glue-button glue-button--medium-emphasis home-page-read-more" aria-label="Read more">Read more <svg role="img" class="glue-icon glue-icon--18px" alt="" aria-hidden="true"> <use xlink:href="/static/img/glue-icons.svg#arrow-forward"></use> </svg> </button> </a> </div> </div> </div> <div class="glue-carousel__item home-page-item"> <div class="glue-carousel__image"> <img src="https://kstatic.googleusercontent.com/files/f213d1db69dd56c3544f8f84d6e410168e079dd29031a9d5803a42149afe42f479414c6e4e8355690a8ebb466436b989b1d1e74eb5c2fb8e1cc82bc7bbf3776e" class="mobile-image" alt="What is SRE?" width="1152" height="640"> <img src="https://lh3.googleusercontent.com/WLOH0Pg_eojR66OtQAt8z3eXeF3uNWhHNR02sYA8iJViMB_ejb1Tgj7Na2xtTasTeyoy6R2siGknfwdZs7plD1Y3YR2nuHdYmJhE-JagAiew1QxkwJI=w1028-rw" class="desktop-image" alt="What is SRE?" width="1069" height="502"> </div> <div class="home-page-carousel-wrapper mobile-image"> <h2 class="glue-headline glue-headline--headline-3">What is SRE?</h2> <p class="glue-mod-spacer-2-bottom glue-mod-spacer-2-top home-page-slide-description">Since 2004, SRE has evolved to become the industry-leading practice for service reliability.</p> <p class="glue-mod-spacer-2-bottom glue-mod-spacer-2-top home-page-slide-description">Hear from key figures about the history of SRE and what’s next for the SRE community.</p> <button class="glue-button glue-button--medium-emphasis glue-button--icon carousel-modal-trigger" tabindex="0" aria-label="Watch video"> <svg role="img" class="glue-icon glue-icon--18px" alt="" aria-hidden="true"> <use xlink:href="/static/img/glue-icons.svg#video-youtube"></use> </svg>Watch video </button> </div> <div class="home-page-carousel desktop-image"> <div class="home-page-carousel-content"> <h2 class="glue-headline glue-headline--headline-3">What is SRE?</h2> <p class="glue-mod-spacer-2-bottom glue-mod-spacer-2-top home-page-slide-description">Since 2004, SRE has evolved to become the industry-leading practice for service reliability.</p> <p class="glue-mod-spacer-2-bottom glue-mod-spacer-2-top home-page-slide-description">Hear from key figures about the history of SRE and what’s next for the SRE community.</p> <button class="glue-button glue-button--medium-emphasis glue-button--icon carousel-modal-trigger" tabindex="0" aria-label="Watch video"> <svg role="img" class="glue-icon glue-icon--18px" alt="" aria-hidden="true"> <use xlink:href="/static/img/glue-icons.svg#video-youtube"></use> </svg>Watch video </button> </div> </div> </div> <div class="glue-carousel__item home-page-item"> <div class="glue-carousel__image"> <img src="https://kstatic.googleusercontent.com/files/0139abbb93f223d0d477a7b8dcc6d814916f88a66ca53025fbeb8054bab15b87f9453137b777f1aecc5b953ad217efbfc7a5c85bef57c04715343a42481ad6e3" class="mobile-image" alt="Product-Focused Reliability for SRE" width="1152" height="640"> <img src="https://lh3.googleusercontent.com/EBa-UBv6hbdxNkN9MBocm4DCA818qdjJ45RhwUzcJnpnKDgrgIUJvFyE3Vlrs4LV0fFMQN-Az46OBFjyaLFrN2ZEBYAWEI8scE9la9qcF5d6_gPzJ4s3=w1028-rw" class="desktop-image" alt="Product-Focused Reliability for SRE" width="1069" height="502"> </div> <div class="home-page-carousel-wrapper mobile-image"> <h2 class="glue-headline glue-headline--headline-3">Product-Focused Reliability for SRE</h2> <p class="glue-mod-spacer-2-bottom glue-mod-spacer-2-top home-page-slide-description">Learn about how a product-focused reliability model can effectively support the overall reliability of a product.</p> <a class="glue-body--large" href="resources/practices-and-processes/product-focused-reliability-for-sre/" title="Read more" aria-label="Read more"> <button class="glue-button glue-button--medium-emphasis home-page-read-more" aria-label="Read more">Read more <svg role="img" class="glue-icon glue-icon--18px" alt="" aria-hidden="true"> <use xlink:href="/static/img/glue-icons.svg#arrow-forward"></use> </svg> </button> </a> </div> <div class="home-page-carousel desktop-image"> <div class="home-page-carousel-content"> <h2 class="glue-headline glue-headline--headline-3">Product-Focused Reliability for SRE</h2> <p class="glue-mod-spacer-2-bottom glue-mod-spacer-2-top home-page-slide-description">Learn about how a product-focused reliability model can effectively support the overall reliability of a product.</p> <a class="glue-body--large" href="resources/practices-and-processes/product-focused-reliability-for-sre/" title="Read more" aria-label="Read more"> <button class="glue-button glue-button--medium-emphasis home-page-read-more" aria-label="Read more">Read more <svg role="img" class="glue-icon glue-icon--18px" alt="" aria-hidden="true"> <use xlink:href="/static/img/glue-icons.svg#arrow-forward"></use> </svg> </button> </a> </div> </div> </div> <div class="glue-carousel__item home-page-item"> <div class="glue-carousel__image"> <img src="https://kstatic.googleusercontent.com/files/fd65c3ea04fc81a43a2675142ca2cbc7593ab6c93e17d73461ff86f64ea92e609ec108db26c765c86f12d74b8561529eff163897632dd2d31a2ded1e36df50d8" class="mobile-image" alt="SRE Books" width="1152" height="640"> <img src="https://lh3.googleusercontent.com/Yq9Ab0aSxhZq_1bfmaPv0mnWesk1Nw0CcjcQ7Lj1JHC_WKghHZbGuzVLUAnJuKPWAoiI_KecQlKVuODEO-4_fIwCdyTwCGchx7Q27RA=w1028-rw" class="desktop-image" alt="SRE Books" width="1069" height="502"> </div> <div class="home-page-carousel-wrapper mobile-image"> <h2 class="glue-headline glue-headline--headline-3">SRE Books</h2> <p class="glue-mod-spacer-2-bottom glue-mod-spacer-2-top home-page-slide-description">Read our SRE books online: <br> Building Secure & Reliable Systems, <br> The SRE Workbook, <br> and the original SRE book.</p> <a class="glue-body--large" href="/books/" title="Read online" aria-label="Read online"> <button class="glue-button glue-button--medium-emphasis home-page-read-more" aria-label="Read online">Read online <svg role="img" class="glue-icon glue-icon--18px" alt="" aria-hidden="true"> <use xlink:href="/static/img/glue-icons.svg#arrow-forward"></use> </svg> </button> </a> </div> <div class="home-page-carousel desktop-image"> <div class="home-page-carousel-content"> <h2 class="glue-headline glue-headline--headline-3">SRE Books</h2> <p class="glue-mod-spacer-2-bottom glue-mod-spacer-2-top home-page-slide-description">Read our SRE books online: <br> Building Secure & Reliable Systems, <br> The SRE Workbook, <br> and the original SRE book.</p> <a class="glue-body--large" href="/books/" title="Read online" aria-label="Read online"> <button class="glue-button glue-button--medium-emphasis home-page-read-more" aria-label="Read online">Read online <svg role="img" class="glue-icon glue-icon--18px" alt="" aria-hidden="true"> <use xlink:href="/static/img/glue-icons.svg#arrow-forward"></use> </svg> </button> </a> </div> </div> </div> <div class="glue-carousel__item home-page-item"> <div class="glue-carousel__image"> <img src="https://kstatic.googleusercontent.com/files/afa9b296b33ac8753f61fca0bcf489ea90bc07e53eb3825e178a929d8eaa3fcd9a8f7412f05a0a6b18de2955931c82d2b1ad50f1150e7b27583688cba13c403a" class="mobile-image" alt="STPA (System Theoretic Process Analysis) at Google" width="1152" height="640"> <img src="https://lh3.googleusercontent.com/PKk7L_jywctZKX-6w8kXeEOSQycXsS2zleMGNkEmPql2LmzKgVCoZSJWhOjjOr4n5NLIqgw33uVuwdhDWZ6by1rmNGkLTteB1SUKhDDprIgTdYnUSA=w1028-rw" class="desktop-image" alt="STPA (System Theoretic Process Analysis) at Google" width="1069" height="502"> </div> <div class="home-page-carousel-wrapper mobile-image"> <h2 class="glue-headline glue-headline--headline-3">STPA (System Theoretic Process Analysis) at Google</h2> <p class="glue-mod-spacer-2-bottom glue-mod-spacer-2-top home-page-slide-description">Google is using STPA to analyze pure software systems and discover the unknown unknowns.</p> <a class="glue-body--large" href="resources/practices-and-processes/stpa/" title="Read more" aria-label="Read more"> <button class="glue-button glue-button--medium-emphasis home-page-read-more" aria-label="Read more">Read more <svg role="img" class="glue-icon glue-icon--18px" alt="" aria-hidden="true"> <use xlink:href="/static/img/glue-icons.svg#arrow-forward"></use> </svg> </button> </a> </div> <div class="home-page-carousel desktop-image"> <div class="home-page-carousel-content"> <h2 class="glue-headline glue-headline--headline-3">STPA (System Theoretic Process Analysis) at Google</h2> <p class="glue-mod-spacer-2-bottom glue-mod-spacer-2-top home-page-slide-description">Google is using STPA to analyze pure software systems and discover the unknown unknowns.</p> <a class="glue-body--large" href="resources/practices-and-processes/stpa/" title="Read more" aria-label="Read more"> <button class="glue-button glue-button--medium-emphasis home-page-read-more" aria-label="Read more">Read more <svg role="img" class="glue-icon glue-icon--18px" alt="" aria-hidden="true"> <use xlink:href="/static/img/glue-icons.svg#arrow-forward"></use> </svg> </button> </a> </div> </div> </div> </div> <div class="glue-carousel__paginate glue-pagination-previous"> <button type="button" class="glue-pagination__button" data-glue-pagination-previous 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type="button" class="glue-pagination__button glue-pagination__page-list-button" role="tab" data-glue-pagination-page="5" aria-label="slide5">5</button> </div> <div class="glue-pagination__button-container glue-pagination__page-list-button-container"> <button type="button" class="glue-pagination__button glue-pagination__page-list-button" role="tab" data-glue-pagination-page="6" aria-label="slide6">6</button> </div> <div class="glue-pagination__button-container glue-pagination__page-list-button-container"> <button type="button" class="glue-pagination__button glue-pagination__page-list-button" role="tab" data-glue-pagination-page="7" aria-label="slide7">7</button> </div> </div> </div> </div> </div> </section> <div class="glue-modal glue-modal__carousel" role="dialog" aria-modal="true" aria-labelledby="modal-label" aria-describedby="carousel-modal-content"> <div id="carousel-modal-content" class="glue-carousel-modal__content-wrapper" data-glue-yt-video-vid="1NF6N2RwVoc" data-glue-yt-video-height="100%" data-glue-yt-video-width="100%"> </div> <button class="glue-modal__close-btn" aria-label="Close"></button> </div> <section class="glue-mod-spacer-5-top glue-page" id="modal-label"> <div class="glue-grid lazy-load-monitor glue-mod-spacer-6-bottom home-page-variant"> <div class="glue-grid__col glue-grid__col--span-1"></div> <div class="glue-grid__col glue-grid__col--span-5 home-page-card"> <h2 class="glue-headline glue-headline--headline-3 glue-mod-spacer-2-bottom">What we do as <span>SRE</span></h2> <p class="home-page-headline">Our job is a combination not found elsewhere in the industry. Like traditional operations groups, we keep important, revenue-critical systems up and running despite hurricanes, bandwidth outages, and configuration errors.</p> </div> <div class="glue-grid__col glue-grid__col--span-5 home-page-card-image monitor"> <picture> <source type="image/webp" srcset="https://lh3.googleusercontent.com/12rg5Y2H9x_AGUrVq-rc2XW8MAojmtoVqi0Xi_FKEGWKoxP5qflAcSnyLzX92wYr5MZVTBFKO2HVXb7m8tP7jlnCBWq6qpL2VvdhIHaGEUfJ8NeKCsk2=w503-rw"> <img src="https://lh3.googleusercontent.com/12rg5Y2H9x_AGUrVq-rc2XW8MAojmtoVqi0Xi_FKEGWKoxP5qflAcSnyLzX92wYr5MZVTBFKO2HVXb7m8tP7jlnCBWq6qpL2VvdhIHaGEUfJ8NeKCsk2=rw" alt="sre expert" width="503" height="236" > </picture> </div> </div> <div class="glue-grid lazy-load-monitor glue-mod-spacer-6-bottom home-page-variant"> <div class="glue-grid__col glue-grid__col--span-1"></div> <div class="glue-grid__col glue-grid__col--span-5 home-page-card is-reverse"> <h2 class="glue-headline glue-headline--headline-3 glue-mod-spacer-2-bottom">How we SRE at <span>Google</span></h2> <p class="home-page-headline">As SRE, we flip between the fine-grained detail of disk driver IO scheduling to the big picture of continental-level service capacity, across a range of systems and a user population measured in billions.</p> </div> <div class="glue-grid__col glue-grid__col--span-5 home-page-card-image monitor"> <picture> <source type="image/webp" srcset="https://lh3.googleusercontent.com/K4ctb-bP-59YqOGgcA0BNK2FzUPrWbWfI_Kr04pUJpIEOpFACJmpCbfDbREZnvA9Vh7yGXOCsvo4vO7fbzHgkfTxTKKsiXr3SIrDAdohFLXNJi7Nn98=w503-rw"> <img src="https://lh3.googleusercontent.com/K4ctb-bP-59YqOGgcA0BNK2FzUPrWbWfI_Kr04pUJpIEOpFACJmpCbfDbREZnvA9Vh7yGXOCsvo4vO7fbzHgkfTxTKKsiXr3SIrDAdohFLXNJi7Nn98=rw" alt="sre expert" width="503" height="236" loading="lazy"> </picture> </div> </div> </section> <div class="bottom-banner glue-mod-spacer-5-bottom glue-mod-spacer-5-top"> <div class="bottom-banner__spacing" id="bottom-banner-button"> <h2 class="glue-headline glue-headline--headline-3 glue-mod-spacer-3-bottom"> Interested in joining SRE? 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