随着许多存储项目的实施,用户对存储设备的需求已经不仅仅满足于数据存储功能,许多用户都希望存储设备可以在一定程度上取代常规的应用服务器,以达到简化系统结构、减少设备数量、节约系统建设成本的目的。这样的需求促使了应用存储的出现、并使之得到了快速的发展。
应用存储是一种可以内嵌了某种应用软件功能的新型存储设备,它不仅具有数据存储功能,还具有服务器的部分应用功能,可以看作是服务器和存储设备的集合体,这种存储设备就称为应用存储。
随着芯片技术的快速发展,存储设备所采用的CPU或专用芯片的运算能力及处理速度成倍提高。在许多类型系统中,存储设备不仅能满足系统的数据存储和访问功能,还的往往有较大的性能冗余。同时,随着存储设备的整体价格却在不断降低。用户在设备选型及购买时,一般会选择稍高一级别的存储设备。为了有效地利用存储设备的富余资源,在存储设备控制器部分中内嵌了特殊功能的应用软件,使得存储设备不仅为系统提供数据存储服务器,还能提供一定的软件应用服务器。
应用存储的软件功能
应用存储真正有别于普通存储的特点在于可以运行特殊的软件应用功能。软件应用功能是指为了更有效地利用高性能存储设备控制器的剩余处理能力,发挥存储设备专用控制器比较普通PC服务器更高效、更稳定的特点,在应用存储的控制器中内部有嵌了各种不同类型的软件和服务器,使存储设备发挥更大的作用。
网络管理功能:
应用存储中可以内置了大量常用的以太网络管理服务,如域管理服务、DHCP服务、DNS服务等。存储网络系统不需要再配置专门的域管理服务器,仅通过应用存储就可以实现存储网络系统的域管理、DHCP服务和DNS服务等功能。
媒体资产管理功能:
应用存储设备中内置了一套强大的音像资源管理系统,也可以称为媒体资料管理系统,该软件系统中可对本存储设备内部的视音频文件、图片等多媒体资料进行录入、管理、检索查询、播放和下载,并可按实际工作中的需求定制分类标准和媒体资源的编目体系,对本存储设备内部的多媒体资源进行编目和分类,方便后期的检索和查寻。媒体资产管理功能对于一些珍贵多媒体资源的长期保存和再利用具有重要意义。
视频转码:
应用存储设备中可以内置了符合视频转码标准的专用视音频转码软件,按预先定制好的转码标准和操作执行时间,在存储设备资源占用较少的时候来执行转码操作。由于视频转码软件只是对本存储设备内部的文件进行处理,数据不会流经存储的主机接口、网络交换机和服务器,因此不会点用存储设备的总带宽、也不会占用共有的网络资料。且由于存储控制器内部采用的是专用的高性能处理器,视频转码的效率也会大幅度提高。
视频点播功能:
应用存储内置了一个视频点播软件,用户可能通过该软件对存储设备中的视音频文件进行播放,并可以实现暂停、快进和回放都功能。
存储共享管理功能:
在一些特殊的应用环境中,如广电行业的非线性编辑制作网络系统、高性能计算系统、IP-SAN网络启动系统,无盘工作站系统中,由于应用软件系统要求多台服务器需要对同一个卷中的数据进行读写操作,就需要存储设备上的文件系统实现在多台服务器之间进行共享,那么存储网络中的所有服务器和工作站就需要安装存储共享管理软件,并配置专门的MDC服务器来对共享的文件系统进行管理。
UIT应用存储设备
UIT BX1200/1600系列存储设备是UIT针对不同行业系统应用所开发的、高性能的应用存储设备(详细技术参数见UIT官方网站)。其最大的优点就是在提供高效的数据存储和数据访问功能的基础上,还提供软件嵌入功能。
在应用存储技术的研究和使用方面,UIT不仅比起步早,同时也远远地走在了前面。UIT BX1200/1600系列应用存储设备中不仅可以简单地嵌入特殊功能的应用软件,实现一定的应用功能,还可以和应用软件密切配合,使应用软件功能和存储设备成为一个完整的系统,比如UIT目前正在大力推广的超级保险箱系统、S3超级监控存储系统和云存储系统。
超级保险箱
超级保险箱一个由UIT Webdisk存储空间管理软件嵌入UIT BX1200/1600存储系统而构成的、集软硬件产品为一体化应用存储设备,可为企业单位内部的服务器工作站提供便捷的网络存储空间、数据授权共享与文件自动备份服务,也可以为大型IDC提供空间租赁服务。
超级保险箱具有高带宽、高稳定性、高扩展性等特点,单套系统可提供64TB存储容量,满足多用户频繁访问需求。多套系统可实现性能的线性增加,充分满足多用户的上传下载与备份需求。
超级保险箱集UIT BX1200/1600应用存储系统与webdisk软件为一体,不仅部署非常简单,还可以节约采用普通存储设备时所必须的服务器,从而大幅度节约系统建设成本。
S3超级监控存储系统
UIT结合现在监控市场的应用需求,推出了应用存储设备嵌入平台软件的一体化解决方案,实现了集存储、录像、转发、浏览、下载、回放、联网等功能于一体的网络视频监控存储系统。其特有的分布式联网设计理念,使从楼宇监控到”平安城市”等涉及网络化监控系统的场所均可以采用这种分布式联网监控存储系统
UIT监控存储产品是以UIT BX1200/1600为基础,嵌入PVG监控平台软件,形成可独立构建系统、可多台联网的分布式联网监控存储产品。UIT监控存储产品集平台软件和磁盘阵列为一体,支持图像的并发存储和并发点播,通过网络接收编码器或者IP camera的码流,直接存储至高可靠性的后端存储,并支持多人同时对历史图像文件进行检索和点播回放。
云存储系统
云存储系统是UIT在2008年所极力倡导和推广的一个新型的存储系统。与普通的存储设备相比,云存储不仅仅是一个硬件设备,而是一个由网络设备、存储设备、服务器、应用软件、公用访问接口、接入网、和客户端程序等多个部分组成的复杂系统。
云存储以应用存储设备为基础,以UIT UFS集群管理软件为核心,通过UFS集群文件系统实现存储设备的集群工作,并通过系统的控制单元和管理单元实现整个系统的管理,数据的分发、处理,处理结构的反馈。并依据CDN内容分发系统、P2P数据传输技术和数据压缩技术等可以保证云存储中的数据可以更有效地存储,使用和占用更少的空间,占用更低的传输带宽,从而对外提供更高效的服务。数据加密技术保证云存储中的数据不会被未授权的用户所访问,同时,通过各种数据备份和容灾技术和措施可以保证云存储中的数据不会丢失,保证云存储自身的安全和稳定。
应用存储的优势特点
应用存储是指当存储设备本身所能提供的性能远超过系统需求时,借用存储设备的高可性和稳定性,在存储上运行一定的应用软件服务。与普通存储设备相对,应用存储除了增加了许多软件应用及服务功能,也将改变很多应用系统的架构设计。
高可用性
应用存储设备一般都基于模块化、冗余的、支持热插拔的原则而设计的,消除了内部的单点故障,其它安全性和稳定性远超于系统中采用的普通PC服务器,应用软件和服务器内在存储内部,能够为系统提供更高的稳定性和系统安全性。
高效性
应用存储设备的核心,即控制器,一般都采用专门设计的总线结构、专门的处理芯片和缓存,在数据校验和数据传输方面做了优化。长时间运行情况下,应用存储不仅能保证软件和服务器功的安全和稳定,还能保证具有比普通PC服务器具有更高的运行和计算效率,可为系统提供更高的服务质量。
系统架构简单,节约建设成本
由于应用存储中可以内置许多软件应用和服务功能,在系统结构设计时,就可以节省大量的PC服务器,和与之相连接的网络连接设备、网络接口卡,极大地简化了系统中结构。系统结构的简单化有利用优化系统的工作流程,提高系统的运行效率。同时由于减少系统所需的设备类型及数量,也可以大大减小系统的建设成本。
48 条回复
不错.学习了.
今天从GOOGLE查找FC-SAN和TOE都转到你的“存储部落”来了,很喜欢啊,看了一整个晚上,正准备推荐朋友呢。
在网络上看到的技术性文章,很多都是抄来抄去千篇一律,博主的文章自实践中来,深入浅出,真的非常感谢!以后我会经常来的。:)
呵呵,你能喜欢就好,以后多交流。
老大,有个问题,能不能帮忙解决一下,不甚感激啊。
exchange邮件集群系统有2台ibm服务器组成cluster,两台服务器分别连接2台san交换机,磁盘阵列柜为2控制卡也分别连接2台san交换机。
问题是Windows系统内的映射的存储盘经常会莫名其妙地丢失。请判定由什么情况引起。有什么解决方法以及具体的操作步骤。
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