公开(公告)号：EP0858036A2

公开(公告)日：1998-08-12

申请号：EP98300808.7

申请日：1998-02-04

Applicant: Compaq Computer Corporation

Inventor： Skidmore, Alan E. ,  Schultz, Stephen M. ,  Scholhamer, George J. ,  Thompson, Mark J. ,  Rushton, Tod D. ,  Freeman, Eugene E. ,  Alexander, Dennis J. ,  Callison, Ryan A. ,  Grieff, Thomas W. ,  Sabotta, Michael L. ,  Grant, David L. ,  McCarty, James F. ,  Schneider, Randy D. ,  Galloway, William C.

IPC: G06F13/42 ,  G06F3/06 ,  H04L29/06

CPC classification number: G06F11/201 ,  H04L12/433 ,  H04L67/42

Abstract: A system and/or network (50) for connecting at least one server (52) to at least one storage device (56) via a Fibre Channel (54). Such a system is capable of providing connection redundancy, high speed data rates, multiple operating systems and, hot plugging. Furthermore, the system allows for a large number of devices to be connected to the Fibre Channel. The devices, being servers, storage devices, or other system related appliances can be separated by more than 10 miles and still communicate via the Fibre Channel at high data rates.

Abstract translation: 一种用于经由光纤通道（54）将至少一个服务器（52）连接到至少一个存储设备（56）的系统和/或网络（50）。 这样的系统能够提供连接冗余，高速数据速率，多个操作系统和热插拔。 此外，系统允许大量设备连接到光纤通道。 作为服务器，存储设备或其他系统相关设备的设备可以分开超过10英里，并且仍然通过光纤通道以高数据速率进行通信。

公开(公告)号：EP0573307A2

公开(公告)日：1993-12-08

申请号：EP93304370.5

申请日：1993-06-04

Applicant: Compaq Computer Corporation

Inventor： Schultz, Stephen M. ,  Schneider, Randy D.

IPC: G06F11/00 ,  G06F12/08 ,  G06F11/14

CPC classification number: G11C29/88 ,  G06F11/0754 ,  G06F11/1415 ,  G06F12/0866 ,  G11C29/74

Abstract: A host computer including a posted write cache for a disk drive system where the posted write cache includes battery backup to protect against potential loss of data in case of a power failure, and also including means for performing a method for determining if live data is present in the posted write cache upon power-up. The posted write cache is further mirrored and parity-checked to assure data validity. Performance increase is achieved since during normal operation data is written to the much faster cache and a completion indication is returned, and the data is flushed to the slower disk drive system at a more opportune time. Batteries provide power to the posted write cache in the event of a power failure. Upon subsequent power-up, a cache signature previously written in the posted write cache indicates that live data still resides in the posted write cache. If the cache signature is not present and the batteries are not fully discharged, a normal power up condition exists. If the cache signature is not present and the batteries are fully discharged, then the user is warned of possible data loss. A configuration identification code assures a proper correspondence between the posted write cache board and the disk drive system. A mirror test executed to verify data validity. Temporary and permanent error conditions are monitored so that posted write operations are only enabled when error-free operation is assured.

Abstract translation: 主计算机包括用于磁盘驱动器系统，其中所述发布的写入高速缓存包括备用电池，以防止数据的潜在损失在电源故障的情况下，因此包括用于确定性采矿执行一种方法，如果实况数据存在于发布的写入高速缓存 在上电时后写高速缓存。 后写缓存镜像进一步和奇偶校验检查，以确保数据的有效性。 性能的提高被实现，因为在正常的操作数据被写入到快得多缓存并返回一个完成指示，并且在一个更有利时机数据刷新到速度较慢的磁盘驱动器系统。 电池在断电的情况下提供电源后写高速缓存。 在随后开机，此前写在后写高速缓存的高速缓存签名指示后写缓存确实livedata沉默寓于。 如果缓存签名不存在，并且电池没有完全放电，正常开机状态存在。 如果缓存签名不存在，并且电池完全放电，然后警告用户可能丢失数据。 一个配置识别码保证了发布的写入高速缓存板和盘驱动系统之间的适当的对应关系。执行以验证数据的有效性的反射镜测试。 临时和永久错误情况进行监视，所以没发布的写入操作仅启用后无差错手术是有保证的。

公开(公告)号：EP0858036A3

公开(公告)日：1999-12-22

申请号：EP98300808.7

申请日：1998-02-04

Applicant: Compaq Computer Corporation

Inventor： Skidmore, Alan E. ,  Schultz, Stephen M. ,  Scholhamer, George J. ,  Thompson, Mark J. ,  Rushton, Tod D. ,  Freeman, Eugene E. ,  Alexander, Dennis J. ,  Callison, Ryan A. ,  Grieff, Thomas W. ,  Sabotta, Michael L. ,  Grant, David L. ,  McCarty, James F. ,  Schneider, Randy D. ,  Galloway, William C.

IPC: G06F13/42 ,  G06F3/06 ,  H04L29/06

CPC classification number: G06F11/201 ,  H04L12/433 ,  H04L67/42

Abstract: A system and/or network (50) for connecting at least one server (52) to at least one storage device (56) via a Fibre Channel (54). Such a system is capable of providing connection redundancy, high speed data rates, multiple operating systems and, hot plugging. Furthermore, the system allows for a large number of devices to be connected to the Fibre Channel. The devices, being servers, storage devices, or other system related appliances can be separated by more than 10 miles and still communicate via the Fibre Channel at high data rates.

公开(公告)号：EP0573308A3

公开(公告)日：1994-02-16

申请号：EP93304371.3

申请日：1993-06-04

Applicant: Compaq Computer Corporation

Inventor： Schneider, Randy D. ,  Flower, David L.

IPC: G06F3/06 ,  G06F11/10 ,  G06F12/08

CPC classification number: G11C29/88 ,  G06F11/1008 ,  G06F12/0804 ,  G06F12/0866

Abstract: A posting memory used in conjunction with a drive array to increase the performance of fault tolerant disk array write operations. When the posting memory flushes dirty data back to the disk array, the posting memory coalesces or gathers contiguous small write or partial stripe write requests into larger, preferably full stripe writes. This reduces the number of extra read operations necessary to update parity information. In this manner, the actual number of reads and writes to the disk array to perform the transfer of write data to the disk array is greatly reduced. In addition, when the posting memory is full, the posting memory delays small, i.e., partial stripe writes but allows full stripe writes or greater to pass directly to the disk array. This reduces the frequency of partial stripe writes and increases disk array performance.

公开(公告)号：EP0573307A3

公开(公告)日：1994-02-16

申请号：EP93304370.5

申请日：1993-06-04

Applicant: Compaq Computer Corporation

Inventor： Schultz, Stephen M. ,  Schneider, Randy D.

IPC: G06F11/00 ,  G06F12/08 ,  G06F11/14

CPC classification number: G11C29/88 ,  G06F11/0754 ,  G06F11/1415 ,  G06F12/0866 ,  G11C29/74

Abstract: A host computer including a posted write cache for a disk drive system where the posted write cache includes battery backup to protect against potential loss of data in case of a power failure, and also including means for performing a method for determining if live data is present in the posted write cache upon power-up. The posted write cache is further mirrored and parity-checked to assure data validity. Performance increase is achieved since during normal operation data is written to the much faster cache and a completion indication is returned, and the data is flushed to the slower disk drive system at a more opportune time. Batteries provide power to the posted write cache in the event of a power failure. Upon subsequent power-up, a cache signature previously written in the posted write cache indicates that live data still resides in the posted write cache. If the cache signature is not present and the batteries are not fully discharged, a normal power up condition exists. If the cache signature is not present and the batteries are fully discharged, then the user is warned of possible data loss. A configuration identification code assures a proper correspondence between the posted write cache board and the disk drive system. A mirror test executed to verify data validity. Temporary and permanent error conditions are monitored so that posted write operations are only enabled when error-free operation is assured.

Abstract translation: 主机包括用于磁盘驱动器系统的发布写高速缓存，其中发布的写高速缓存包括备用电池以防止在电源故障的情况下潜在的数据丢失，并且还包括用于执行用于确定是否存在实时数据的方法的装置 在上电后发布的写入缓存中。 发布的写入缓存进一步镜像并进行奇偶校验以确保数据有效性。 由于在正常操作期间数据被写入更快的高速缓存并且返回完成指示，并且在更适当的时间将数据刷新到较慢的磁盘驱动器系统，所以实现了性能提高。 发生电源故障时，电池为发送的写入缓存提供电源。 在后续加电时，之前写入发布写入高速缓存的高速缓存签名指示实时数据仍驻留在发布写入高速缓存中。 如果缓存签名不存在且电池没有完全放电，则存在正常的加电状态。 如果缓存签名不存在并且电池完全放电，则会警告用户可能会丢失数据。 配置识别码确保投递写缓存板和磁盘驱动器系统之间的适当对应关系。 执行镜像测试以验证数据有效性。 监控临时和永久性错误条件，以便只有在确保无错误操作时才能启用发布的写入操作。

公开(公告)号：EP0573308A2

公开(公告)日：1993-12-08

申请号：EP93304371.3

申请日：1993-06-04

Applicant: Compaq Computer Corporation

Inventor： Schneider, Randy D. ,  Flower, David L.

IPC: G06F3/06 ,  G06F11/10 ,  G06F12/08

CPC classification number: G11C29/88 ,  G06F11/1008 ,  G06F12/0804 ,  G06F12/0866

Abstract: A posting memory used in conjunction with a drive array to increase the performance of fault tolerant disk array write operations. When the posting memory flushes dirty data back to the disk array, the posting memory coalesces or gathers contiguous small write or partial stripe write requests into larger, preferably full stripe writes. This reduces the number of extra read operations necessary to update parity information. In this manner, the actual number of reads and writes to the disk array to perform the transfer of write data to the disk array is greatly reduced. In addition, when the posting memory is full, the posting memory delays small, i.e., partial stripe writes but allows full stripe writes or greater to pass directly to the disk array. This reduces the frequency of partial stripe writes and increases disk array performance.

Abstract translation: 发布内存与驱动器阵列结合使用，以提高容错磁盘阵列写入操作的性能。 当发布内存将脏数据刷新回磁盘阵列时，发布内存会将连续的小写或部分条带写入请求合并或收集为更大，最好是全条带写入。 这减少了更新奇偶校验信息所需的额外读取操作的数量。 以这种方式，实现向磁盘阵列传输写入数据的实际的磁盘阵列读写次数大大减少。 另外，当发布内存满时，发布内存延迟很小，即部分条带化写入，但是允许全部条带化写入或更高的速度直接传递到磁盘阵列。 这可以降低部分条带写入的频率并提高磁盘阵列的性能。