公开(公告)号：US20090138530A1

公开(公告)日：2009-05-28

申请号：US11984965

申请日：2007-11-26

申请人： Hai-Ting Yao ,  Jian-Zhong Wang ,  Tom Chen ,  Win-Harn Liu

发明人： Hai-Ting Yao ,  Jian-Zhong Wang ,  Tom Chen ,  Win-Harn Liu

IPC分类号： G06F12/00

CPC分类号： G06F12/122 ,  G06F3/0605 ,  G06F3/0647 ,  G06F3/0683

摘要： A data management method for logical volume manager (LVM), called LVM includes a first type of physical volume and a second type of physical volume. Access speed of the first type of physical volume is higher than that of the second type of physical volume. Each physical volume has a plurality of physical extents, and a data storage method includes the following steps. Obtaining access frequencies of all the physical extents in statistics; performing a data migration operation, migrating and saving data in the physical extents satisfying an access frequency threshold value in the second type of physical volume to the physical extents without any data in the first type of physical volume; and rewriting a corresponding physical extent number for the migrated data.

摘要翻译： 称为LVM的逻辑卷管理器（LVM）的数据管理方法包括第一类物理卷和第二类物理卷。 第一类物理量的访问速度高于第二类物理卷的访问速度。 每个物理卷具有多个物理盘区，并且数据存储方法包括以下步骤。 获取统计中所有物理盘点的访问频率; 执行数据迁移操作，将满足所述第二类型物理卷中的访问频率阈值的物理范围中的数据迁移并保存到所述物理盘区，而没有所述第一类型物理卷中的任何数据; 并重写相应的迁移数据的物理盘区号。

公开(公告)号：US20090138656A1

公开(公告)日：2009-05-28

申请号：US11984966

申请日：2007-11-26

申请人： Zhun Liu ,  Jian-Zhong Wang ,  Tom Chen ,  Win-Harn Liu

发明人： Zhun Liu ,  Jian-Zhong Wang ,  Tom Chen ,  Win-Harn Liu

IPC分类号： G06F12/00

CPC分类号： G06F11/2087 ,  G06F11/2066

摘要： A method for skipping an initialization process of synchronization of an RAID 1 device skips synchronization process of the RAID1 device through a bitmap technique. First, an RAID1 device is established, a space of the same size is divided from each member disk of the RAID1 device for storing a bitmap corresponding to each data block on each member disk. When a read/write operation is executed on the RAID1 device, before the bit value in the bitmap corresponding to the data block is read, whether the bitmap exists or not is determined first, then corresponding operation is executed according to the bit value in the bitmap corresponding to data block requesting the read/write operation. The method skips synchronization process of the RAID 1 device during the initial establishment, thereby largely saving the time required by the synchronization process for initialization, and further improving the overall performance of the RAID1 device.

摘要翻译： 用于跳过RAID 1设备的同步初始化处理的方法通过位图技术跳过RAID1设备的同步过程。 首先，建立RAID1设备，将与RAID1设备的每个成员磁盘划分相同大小的空间，用于存储与每个成员磁盘上的每个数据块相对应的位图。 当在RAID1设备上执行读/写操作时，在读取与数据块相对应的位图中的位值之前，首先确定位图是否存在，然后根据位置值中的位值执行相应的操作 位图对应于请求读/写操作的数据块。 该方法在初始建立过程中跳过RAID 1设备的同步过程，从而大大节省了初始化同步过程所需的时间，进一步提高了RAID1设备的整体性能。

公开(公告)号：US20090132765A1

公开(公告)日：2009-05-21

申请号：US11943652

申请日：2007-11-21

申请人： Jian-Zhong Wang ,  Tom Chen ,  Win-Harn Liu

发明人： Jian-Zhong Wang ,  Tom Chen ,  Win-Harn Liu

IPC分类号： G06F12/00

CPC分类号： G06F12/0868 ,  G06F11/1666 ,  G06F11/2089 ,  G06F2212/284 ,  G06F2212/286 ,  H04L67/1095

摘要： A dual controller storage apparatus and a cache memory mirror method thereof are described. The storage apparatus includes a imaging environment module, a storage device, a first controller, and a second controller. The first controller has a virtual disk and a first cache memory. The second controller has a second cache memory. The present invent provides a imaging environment function to select the first or the second controller to serve an extranet according to the request of the extranet. If the imaging environment function selects the second controller, the data received from the extranet is written into the second cache memory. Communication between the second controller and the first controller is established, and the data of the second controller received from the extranet into the first cache memory and the virtual disk.

摘要翻译： 描述了双控制器存储装置及其高速缓存存储器镜像方法。 存储装置包括成像环境模块，存储装置，第一控制器和第二控制器。 第一控制器具有虚拟磁盘和第一缓存存储器。 第二控制器具有第二缓存存储器。 本发明提供了一种成像环境功能，用于根据外部网的请求选择第一或第二控制器来服务外部网。 如果成像环境功能选择第二控制器，则从外部网接收的数据被写入第二高速缓冲存储器。 建立第二控制器和第一控制器之间的通信，并且将第二控制器的数据从外部网接收到第一高速缓冲存储器和虚拟盘中。