Отправить запрос
    NAS, SAN или DAS: в чем разница и что выбрать для IT-инфраструктуры компании
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                                [TIMESTAMP_X] => 24.08.2023 09:03:50
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                                [TIMESTAMP_X] => 24.08.2023 09:04:39
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                                [3] => Взять оборудование в тест
                                [4] => Техническая поддержка
                                [5] => Гарантийное обслуживание
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    [FORM_TITLE] => Отправить запрос [FORM_DESCRIPTION] => Внимание! Если вам необходима техническая поддержка создайте заявку в автоматизированной системе [isFormTitle] => Y [isFormDescription] => Y [isFormImage] => N [isUseCaptcha] => [DATE_FORMAT] => DD.MM.YYYY [REQUIRED_SIGN] => * [FORM_FOOTER] =>
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[IS_HTML_CAPTION] => N [REQUIRED] => N [IS_INPUT_CAPTION_IMAGE] => N [HTML_CODE] => [STRUCTURE] => Array ( [0] => Array ( [ID] => 203 [FIELD_ID] => 144 [QUESTION_ID] => 144 [TIMESTAMP_X] => 29.09.2022 18:14:54 [MESSAGE] => [VALUE] => [FIELD_TYPE] => textarea [FIELD_WIDTH] => 0 [FIELD_HEIGHT] => 0 [FIELD_PARAM] => class="form-control" [C_SORT] => 100 [ACTIVE] => Y ) ) [VALUE] => ) [check] => Array ( [CAPTION] => [IS_HTML_CAPTION] => N [REQUIRED] => N [IS_INPUT_CAPTION_IMAGE] => N [HTML_CODE] => [STRUCTURE] => Array ( [0] => Array ( [ID] => 204 [FIELD_ID] => 145 [QUESTION_ID] => 145 [TIMESTAMP_X] => 29.09.2022 18:14:54 [MESSAGE] => [VALUE] => [FIELD_TYPE] => text [FIELD_WIDTH] => 0 [FIELD_HEIGHT] => 0 [FIELD_PARAM] => [C_SORT] => 100 [ACTIVE] => Y ) ) [VALUE] => ) [FILES] => Array ( [CAPTION] => [IS_HTML_CAPTION] => N [REQUIRED] => N [IS_INPUT_CAPTION_IMAGE] => N [HTML_CODE] => [STRUCTURE] => Array ( [0] => Array ( [ID] => 232 [FIELD_ID] => 158 [QUESTION_ID] => 158 [TIMESTAMP_X] => 10.11.2022 15:06:06 [MESSAGE] => [VALUE] => [FIELD_TYPE] => text [FIELD_WIDTH] => 0 [FIELD_HEIGHT] => 0 [FIELD_PARAM] => [C_SORT] => 100 [ACTIVE] => Y ) ) [VALUE] => ) [INN] => Array ( [CAPTION] => ИНН [IS_HTML_CAPTION] => N [REQUIRED] => N [IS_INPUT_CAPTION_IMAGE] => N [HTML_CODE] => [STRUCTURE] => Array ( [0] => Array ( [ID] => 238 [FIELD_ID] => 164 [QUESTION_ID] => 164 [TIMESTAMP_X] => 24.08.2023 09:01:39 [MESSAGE] => [VALUE] => [FIELD_TYPE] => text [FIELD_WIDTH] => 0 [FIELD_HEIGHT] => 0 [FIELD_PARAM] => class="form-control" [C_SORT] => 100 [ACTIVE] => Y ) ) [VALUE] => ) [MANAGER] => Array ( [CAPTION] => Ваш менеджер QTECH [IS_HTML_CAPTION] => N [REQUIRED] => N [IS_INPUT_CAPTION_IMAGE] => N [HTML_CODE] => [STRUCTURE] => Array ( [0] => Array ( [ID] => 239 [FIELD_ID] => 165 [QUESTION_ID] => 165 [TIMESTAMP_X] => 24.08.2023 09:01:59 [MESSAGE] => [VALUE] => [FIELD_TYPE] => text [FIELD_WIDTH] => 0 [FIELD_HEIGHT] => 0 [FIELD_PARAM] => class="form-control" [C_SORT] => 100 [ACTIVE] => Y ) ) [VALUE] => ) [COOP_TYPE] => Array ( [CAPTION] => Тип сотрудничества* [IS_HTML_CAPTION] => N [REQUIRED] => N [IS_INPUT_CAPTION_IMAGE] => N [HTML_CODE] => [STRUCTURE] => Array ( [0] => Array ( [ID] => 240 [FIELD_ID] => 166 [QUESTION_ID] => 166 [TIMESTAMP_X] => 24.08.2023 09:02:46 [MESSAGE] => Конечный заказчик [VALUE] => [FIELD_TYPE] => dropdown [FIELD_WIDTH] => 0 [FIELD_HEIGHT] => 0 [FIELD_PARAM] => class="form-control" [C_SORT] => 100 [ACTIVE] => Y ) [1] => Array ( [ID] => 241 [FIELD_ID] => 166 [QUESTION_ID] => 166 [TIMESTAMP_X] => 24.08.2023 09:02:46 [MESSAGE] => Партнер/Дистрибьютор [VALUE] => [FIELD_TYPE] => dropdown [FIELD_WIDTH] => 0 [FIELD_HEIGHT] => 0 [FIELD_PARAM] => class="form-control" [C_SORT] => 200 [ACTIVE] => Y ) ) [VALUE] => ) [ADDRESS] => Array ( [CAPTION] => Адрес объекта установки оборудования [IS_HTML_CAPTION] => N [REQUIRED] => N [IS_INPUT_CAPTION_IMAGE] => N [HTML_CODE] => [STRUCTURE] => Array ( [0] => Array ( [ID] => 242 [FIELD_ID] => 167 [QUESTION_ID] => 167 [TIMESTAMP_X] => 24.08.2023 09:03:21 [MESSAGE] => [VALUE] => [FIELD_TYPE] => text [FIELD_WIDTH] => 0 [FIELD_HEIGHT] => 0 [FIELD_PARAM] => class="form-control" [C_SORT] => 100 [ACTIVE] => Y ) ) [VALUE] => ) [NAME_OWNER] => Array ( [CAPTION] => Наименование заказчика* [IS_HTML_CAPTION] => N [REQUIRED] => N [IS_INPUT_CAPTION_IMAGE] => N [HTML_CODE] => [STRUCTURE] => Array ( [0] => Array ( [ID] => 243 [FIELD_ID] => 168 [QUESTION_ID] => 168 [TIMESTAMP_X] => 24.08.2023 09:03:50 [MESSAGE] => [VALUE] => [FIELD_TYPE] => text [FIELD_WIDTH] => 0 [FIELD_HEIGHT] => 0 [FIELD_PARAM] => class="form-control" [C_SORT] => 100 [ACTIVE] => Y ) ) [VALUE] => ) [INN_OWNER] => Array ( [CAPTION] => ИНН заказчика [IS_HTML_CAPTION] => N [REQUIRED] => N [IS_INPUT_CAPTION_IMAGE] => N [HTML_CODE] => [STRUCTURE] => Array ( [0] => Array ( [ID] => 244 [FIELD_ID] => 169 [QUESTION_ID] => 169 [TIMESTAMP_X] => 24.08.2023 09:04:16 [MESSAGE] => [VALUE] => [FIELD_TYPE] => text [FIELD_WIDTH] => 0 [FIELD_HEIGHT] => 0 [FIELD_PARAM] => class="form-control" [C_SORT] => 100 [ACTIVE] => Y ) ) [VALUE] => ) [OWNER_CITY] => Array ( [CAPTION] => Город заказчика* [IS_HTML_CAPTION] => N [REQUIRED] => N [IS_INPUT_CAPTION_IMAGE] => N [HTML_CODE] => [STRUCTURE] => Array ( [0] => Array ( [ID] => 245 [FIELD_ID] => 170 [QUESTION_ID] => 170 [TIMESTAMP_X] => 24.08.2023 09:04:39 [MESSAGE] => [VALUE] => [FIELD_TYPE] => text [FIELD_WIDTH] => 0 [FIELD_HEIGHT] => 0 [FIELD_PARAM] => class="form-control" [C_SORT] => 100 [ACTIVE] => Y ) ) [VALUE] => ) [TEMPLATE] => Array ( [CAPTION] => [IS_HTML_CAPTION] => N [REQUIRED] => N [IS_INPUT_CAPTION_IMAGE] => N [HTML_CODE] => [STRUCTURE] => Array ( [0] => Array ( [ID] => 246 [FIELD_ID] => 171 [QUESTION_ID] => 171 [TIMESTAMP_X] => 24.08.2023 09:05:04 [MESSAGE] => [VALUE] => [FIELD_TYPE] => text [FIELD_WIDTH] => 0 [FIELD_HEIGHT] => 0 [FIELD_PARAM] => [C_SORT] => 100 [ACTIVE] => Y ) ) [VALUE] => ) ) [SUBMIT_BUTTON] => [APPLY_BUTTON] => [RESET_BUTTON] => [REQUIRED_STAR] => * [CAPTCHA_IMAGE] => [CAPTCHA_FIELD] => [CAPTCHA] =>
    )

    Отправить запрос

    Внимание! Если вам необходима техническая поддержка создайте заявку в автоматизированной системе
    Через 5 секунд вы будете перенаправлены на страницу автоматизированной системы для создания обращения.
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    NAS, SAN или DAS: в чем разница и что выбрать для IT-инфраструктуры компании

    11 августа 2026

    DAS, NAS и SAN — три архитектуры хранения данных, различающиеся способом подключения и типом доступа: DAS подключается напрямую к серверу, NAS предоставляет файловый доступ по сети через NFS/SMB, а SAN обеспечивает блочный доступ через Fibre Channel или iSCSI. СХД QTECH QSRV-2624B и QSRV-4624B поддерживают оба сценария — файловый и блочный доступ — на базе процессоров Intel Xeon Cascade Lake Scalable с RAID 0, 1, 5, 6, 10, 50, 60.

    Выбор архитектуры хранения данных определяет, насколько эффективно IT-инфраструктура компании справится с ростом нагрузки и числа подключенных серверов. Дисковое хранилище DAS, сетевое хранилище NAS и сеть хранения данных SAN решают разные задачи: от локального расширения одного сервера до централизованного блочного доступа для кластера виртуализации.

    Ниже разобраны особенности каждой архитектуры, их ограничения и сценарии применения, а также сравнительная таблица по стоимости, скорости и сложности настройки с указанием подходящих решений QTECH.

    DAS (Direct-Attached Storage): плюсы и ограничения

    DAS-хранилище подключается напрямую к одному серверу без промежуточного сетевого коммутатора, что обеспечивает минимальную задержку доступа к данным и простоту настройки. Такая архитектура подходит для локальных задач, где данные использует только один вычислительный узел, однако не позволяет организовать совместный доступ нескольких серверов к общему массиву.

    Инженеры отмечают, что для масштабирования DAS без перехода на сетевую архитектуру применяются дисковые полки JBOD, подключаемые к серверу по интерфейсу SAS 2.0 или SAS 3.0. Полка QTECH QSRV-424-BKP выпускается в форм-факторах 2U-4U и вмещает от 12 до 36 отсеков под накопители 3.5 и 2.5 дюйма, что позволяет наращивать локальную емкость поэтапно.

    NAS (Network-Attached Storage): сетевое файловое хранилище для офиса

    Сетевое хранилище NAS подключается к локальной сети компании и предоставляет файловый доступ к данным по протоколам NFS или SMB сразу нескольким пользователям и серверам одновременно. Такая архитектура упрощает совместную работу с документами и файловыми ресурсами, не требуя специализированной сети хранения данных.

    СХД QTECH, включая QSRV-2624B, поддерживают протоколы NFS и SMB, что позволяет использовать одну аппаратную платформу как в режиме NAS для файлового доступа, так и переключаться на блочный доступ при росте требований инфраструктуры. Такой гибридный подход снижает риски при масштабировании корпоративной сети.

    SAN (Storage Area Network): высокая производительность для Enterprise

    Сеть хранения данных SAN строится на выделенной инфраструктуре с протоколами Fibre Channel или iSCSI/iSER, обеспечивающими блочный доступ к данным с минимальной задержкой. Такая архитектура необходима для высоконагруженных баз данных, ERP-систем и кластеров виртуализации, где критична предсказуемая производительность дисковой подсистемы.

    СХД QTECH QSRV-2624B и QSRV-4624B построены на 4 процессорах Intel Xeon Cascade Lake Scalable с числом ядер до 20 на процессор и тепловым пакетом до 165 Вт, поддерживают протоколы Fibre Channel и iSCSI/iSER, а также кластеризацию Active-Active с ALUA для отказоустойчивого доступа. Практика эксплуатации показывает, что SAN-архитектура оправдывает себя при масштабе от нескольких десятков виртуальных машин и выше, когда локальная производительность DAS уже недостаточна.

    Сравнительная таблица DAS, NAS и SAN

    КритерийDASNASSAN
    Тип доступаБлочный, локальныйФайловый (NFS, SMB)Блочный (Fibre Channel, iSCSI/iSER)
    ПодключениеНапрямую к серверу (SAS)Через локальную сеть EthernetЧерез выделенную сеть хранения
    Совместный доступ нескольких серверовОграниченДаДа, с высокой производительностью
    Сложность настройкиНизкаяСредняяВысокая
    Типовое решение QTECHJBOD-полка QSRV-424-BKPQSRV-2624B (протоколы NFS/SMB)QSRV-2624B, QSRV-4624B (Fibre Channel, iSCSI/iSER)
    Поддержка RAID0, 1, 5, 6, 10, 50, 60, В3, В300, 1, 5, 6, 10, 50, 60, В3, В300, 1, 5, 6, 10, 50, 60, В3, В30
    Рекомендуемый сценарийЛокальное расширение одного сервера, резервное копированиеФайловый обмен в офисе, малый и средний бизнесERP, СУБД, виртуализация, крупный ЦОД

    Практика эксплуатации показывает, что многие компании начинают с NAS для файлового обмена и постепенно переходят к SAN-архитектуре по мере роста числа виртуальных машин и требований к производительности баз данных. СХД QTECH QSRV-2624B и QSRV-4624B поддерживают оба режима на одной аппаратной базе, что позволяет менять сценарий использования без замены оборудования.

    Что дешевле развернуть: NAS или SAN?

    DAS и NAS требуют меньших первоначальных вложений, так как не нуждаются в выделенной инфраструктуре сети хранения данных и специализированных коммутаторах Fibre Channel. SAN-архитектура на базе СХД QTECH QSRV-2624B или QSRV-4624B обходится дороже за счет более мощных процессоров Intel Xeon Cascade Lake Scalable и протоколов Fibre Channel, но оправдывает затраты за счет производительности при высокой нагрузке.

    Подходит ли DAS для виртуализации нескольких серверов?

    DAS-хранилище физически привязано к одному серверу и не предназначено для совместного доступа нескольких узлов виртуализации к одному массиву данных. Для кластеров виртуализации с общим хранилищем рекомендуется архитектура SAN с поддержкой Active-Active кластеризации, реализованная в СХД QTECH QSRV-2624B и QSRV-4624B.

    Как перейти с NAS на SAN без замены всего оборудования?

    СХД QTECH, поддерживающие одновременно протоколы NFS/SMB и Fibre Channel/iSCSI, позволяют начать с файлового доступа NAS и постепенно добавлять блочные тома SAN на той же аппаратной базе. Это снижает капитальные затраты при масштабировании инфраструктуры и избавляет от необходимости миграции данных на новое оборудование.

    Какие протоколы использует SAN-архитектура QTECH?

    Сеть хранения данных SAN на базе оборудования QTECH использует протоколы Fibre Channel для выделенных сетей хранения и iSCSI/iSER для передачи блочного трафика через стандартную Ethernet-инфраструктуру. Оба варианта поддерживаются СХД QSRV-2624B и QSRV-4624B с кластеризацией Active-Active.

    Нужна ли отдельная сеть для SAN или можно использовать существующую Ethernet-инфраструктуру?

    Протокол iSCSI/iSER позволяет строить сеть хранения данных SAN на базе существующей Ethernet-инфраструктуры без выделенных Fibre Channel коммутаторов, что снижает затраты на развертывание. Для максимальной производительности и минимальной задержки в крупных ЦОД инженеры рекомендуют выделенную сеть Fibre Channel, изолированную от основного трафика передачи данных.


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