公开(公告)号：US08793452B1

公开(公告)日：2014-07-29

申请号：US13435555

申请日：2012-03-30

申请人： Larry W. McCloskey ,  Karyn M. Kelley ,  Douglas R. Phillips

发明人： Larry W. McCloskey ,  Karyn M. Kelley ,  Douglas R. Phillips

IPC分类号： G06F12/00 ,  G06F13/00 ,  G06F13/28

CPC分类号： G06F11/1458 ,  G06F3/0617 ,  G06F3/065 ,  G06F3/0686 ,  G06F11/1456 ,  G06F2201/815

摘要： Replication requests are initiated in a virtual tape emulation system by storing a replication request in a persistent storage area that is shared between a virtual tape emulator and a control station. When the control station sees a pending replication request it initiates a request to a replication control to replicate the affected file or file system to a backup storage array. The control station deletes the replication request when the replication task completes. Deletion of the replication requests from the shared area is taken by the virtual tape task as a signal that replication has successfully completed, and can be reported to the mainframe.

摘要翻译： 复制请求通过在虚拟磁带仿真器和控制站之间共享的永久存储区域中存储复制请求而在虚拟磁带仿真系统中启动。 当控制台看到待处理的复制请求时，它启动对复制控制的请求，以将受影响的文件或文件系统复制到备份存储阵列。 复制任务完成后，控制台将删除复制请求。 从共享区域删除复制请求由虚拟磁带任务作为复制已成功完成的信号，并可以报告给大型机。

公开(公告)号：US08924682B1

公开(公告)日：2014-12-30

申请号：US13444562

申请日：2012-04-11

申请人： Larry W. McCloskey ,  Thomas McCafferty

发明人： Larry W. McCloskey ,  Thomas McCafferty

IPC分类号： G06F12/00

CPC分类号： G06F3/0682 ,  G06F3/0623 ,  G06F3/0659 ,  G06F3/0686 ,  G06F11/004

摘要： In one embodiment, a system includes a main data system, a virtual tape volume coupled to receive a write request from the main data system, and an accidental loss protection system configured to receive the write request to the virtual tape volume, detect whether the write request overwrites a label of the virtual tape volume, and prevent the overwriting of the label.

摘要翻译： 在一个实施例中，系统包括主数据系统，耦合以从主数据系统接收写入请求的虚拟磁带卷和被配置为接收对虚拟磁带卷的写入请求的意外丢失保护系统，检测写入 请求将覆盖虚拟磁带卷的标签，并防止覆盖标签。

公开(公告)号：US09207877B1

公开(公告)日：2015-12-08

申请号：US13435206

申请日：2012-03-30

申请人： Larry W. McCloskey

发明人： Larry W. McCloskey

IPC分类号： G06F3/06 ,  G06F11/14 ,  G06F11/07

CPC分类号： G06F3/0664 ,  G06F3/0607 ,  G06F3/0685 ,  G06F3/0686 ,  G06F3/0689 ,  G06F11/0712 ,  G06F11/0757 ,  G06F11/1415 ,  G06F11/1428

摘要： A method for operating a virtual tape emulator that receives a request to access a directory in a disk array including a set of directories. The method includes determining whether the directory is stalled, and if so, preventing access to the directory. In another embodiment, a virtual tape emulator includes a request reception module configured to receive a request to access a directory in a disk array including a set of directories. The virtual tape emulator further includes a stall determination module configured to determine whether the directory is stalled, and an access prevention module configured to prevent access to the directory if the directory is stalled.

摘要翻译： 一种用于操作虚拟磁带仿真器的方法，该虚拟磁带仿真器接收访问包括一组目录的磁盘阵列中的目录的请求。 该方法包括确定目录是否被停止，如果是，则阻止访问该目录。 在另一个实施例中，虚拟磁带仿真器包括被配置为接收访问包括一组目录的磁盘阵列中的目录的请求的请求接收模块。 虚拟磁带仿真器还包括配置成确定目录是否停止的失速确定模块，以及配置为如果目录被停止则阻止访问目录的访问防范模块。

公开(公告)号：US08775756B1

公开(公告)日：2014-07-08

申请号：US13433477

申请日：2012-03-29

申请人： Larry W. McCloskey ,  Bruce Offhaus ,  Eric M. Vaughn

发明人： Larry W. McCloskey ,  Bruce Offhaus ,  Eric M. Vaughn

IPC分类号： G06F1/00 ,  G06F13/00 ,  G06F13/28 ,  G06F7/00 ,  G06F17/00 ,  G06F3/06 ,  G06F11/07 ,  G06F12/00 ,  G06F11/14 ,  G06F17/30

CPC分类号： G06F3/06 ,  G06F3/0619 ,  G06F3/065 ,  G06F3/0664 ,  G06F11/0766 ,  G06F11/1446 ,  G06F12/00 ,  G06F17/30088 ,  G06F17/30377 ,  G06F2201/82 ,  G06F2201/84 ,  G06F2212/1032 ,  G06F2212/151 ,  G06F2212/165

摘要： A virtual tape emulator (VTE) that performs data integrity read back verification at host sync points. The VTE first flushes data that it may have buffered to a backend storage subsystem such as a disk array. The VTE then reads all data that was written to the backend storage array between a prior sync point and the current sync point. During this feedback verification, integrity checks can be performed. An error detected during read back verification is returned to the host operation that triggered the sync operation.

摘要翻译： 在主机同步点执行数据完整性的虚拟磁带仿真器（VTE）读回验证。 VTE首先将数据缓冲到后端存储子系统（如磁盘阵列）中。 VTE然后读取在先前同步点和当前同步点之间写入后端存储阵列的所有数据。 在此反馈验证期间，可以执行完整性检查。 在回读验证期间检测到的错误返回到触发同步操作的主机操作。

公开(公告)号：US10078474B1

公开(公告)日：2018-09-18

申请号：US13538332

申请日：2012-06-29

申请人： Sandra J. Goodwin-Jette ,  Larry W. McCloskey

发明人： Sandra J. Goodwin-Jette ,  Larry W. McCloskey

IPC分类号： G06F3/06

CPC分类号： G06F3/0686 ,  G06F3/061 ,  G06F3/0658 ,  G06F16/11

摘要： In one embodiment, a method of updating a list of available scratchfiles at a node accessing a filesystem includes determining whether the node should update the list of available scratchfiles on the filesystem. If the node should update the list of available scratchfiles of the filesystem, the method updates the list of available scratchfiles on the filesystem. In one embodiment, the method may determine whether the list of available scratchfiles on the filesystem should be updated by determining whether another node is currently updating its scratch list for the filesystem. If it is not, then the method may further determine whether the filesystem has added a scratch volume since a previous update of the list of available scratchfiles at the node.