发布时间：2019-08-08 17:10:53
VSAN是一种以vSphere内核为基础进行开发、可扩展的分布式存储架构。VSAN通过在vSphere集群主机当中安装闪存和硬盘来构建VSAN存储层，由VSAN进行控制和管理，形成一个供vSphere集群使用的统一共享存储层。vSphere基础架构中的存储正在发生变化，传统的基于LUN的存储管理机制将存储能力应用于数据存储级别。底层存储阵列不了.........【阅读全文】
发布时间：2019-08-07 15:05:08
在SQL SERVER2005以上版本中，数据页默认开启checksum，标识为m_flagBits & 0x200 == True，其值m_tornBits位于页头0x3C，4字节。其算法概述如下：点击(此处)折叠或打开读8KB 进BUF将BUF头部 CHECKSUM的4字节值清0uint32 checksum = 0 //初始checksumfor i in ra.........【阅读全文】
发布时间：2019-08-06 14:20:55
存储环境部署及存储数据恢复故障的起因:某公司的NetApp FAS-8200存储，使用96块磁盘组建两组存储池，存储池互为镜像。存储池内划分卷并映射到ESXI作为数据存储使用，卷内虚拟机数量约300+。在操作过程中由于未知原因导致卷丢失，卷内虚拟机不可访问。该公司的管理员先进对存储进行了简单的检查和数据恢复但是没有成功，由于.........【阅读全文】
发布时间：2019-07-31 18:06:59
服务器数据恢复背景介绍：本次数据恢复案例的背景是一台装有20块硬盘的普通服务器，由于未知原因上层业务突然崩溃，机房管理员对服务器进行检查发现导致服务器崩溃的主要原因是服务器上有3块硬盘离线，管理员将服务器内的所有硬盘按照现有盘序从槽位取出后携带硬盘来到北京某数据恢复中心进行服务器数据恢复操作。服务器.........【阅读全文】
发布时间：2019-07-26 17:32:26
概述：北京某国企客户 Oracle 11g R2 数据库误truncate table CM_CHECK_ITEM_HIS，表数据丢失，业务查询到该表时报错，此时发现数据库的备份不能用，表数据无法查询。客户Oracle 11g R2 数据库误truncate table CM_CHECK_ITEM_HIS，表数据丢失，业务查询到该表时报错，此时发现数据库的备份不能用，表数据无法查询。Trunc.........【阅读全文】
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