BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention generally relates to network file systems and schemes, and more particularly, to a network file system that appears to its clients to be a single file system, while locating…
为了做项目的前期验证工作,实验室购买了某开发板,下面是基于该板子的实现过程.作为笔记记录,供入门者参考. 1:创建一个Quartus II的工程 next选择器件,然后finish.我的器件是cyclone IV 系列 EP4CE15F18. 2:打开SOPC Builder,配置NIOS ii硬件. Quartus II 11同时包含了SOPC Builder和Qsys,SOPC Builder是Qsys的低版本,已经被高版本的Quartus II 移除. 添加NIOS II 的CPU,Sys…
https://hadoop.apache.org/docs/r2.7.2/hadoop-project-dist/hadoop-hdfs/HdfsDesign.html Introduction [相对于POSIX,放宽要求] The Hadoop Distributed File System (HDFS) is a distributed file system designed to run on commodity hardware. It has many similarities…
1 Design document 1.1 System overview We implemented a distributed file system using a quorum based protocol. The basic idea of this protocol is that the clients need to obtain permission from multiple servers before either reading or writing a file…
A file system layout apportions an underlying physical volume into one or more virtual volumes (vvols) of a storage system. The underlying physical volume is an aggregate comprising one or more groups of disks, such as RAID groups, of the storage sys…
给NIOS II CPU增加看门狗定时器并使用 配置看门狗定时器: 设置计时溢出时间为1秒 计数器位宽为32位 勾选No Start/Stop control bits 勾选Fixed period 不勾选Readable snapshot 勾选System reset on timeout.(Watchdog) 不勾选Timeout Pulse (1 clock wide) 这部分配置可以参见"Embedded Peripheral IP User Guide.pdf"中Inte…
SOPC开发流程之NIOS II 处理器运行 UC/OS II 这里以在芯航线FPGA学习套件的核心板上搭建 NIOS II 软核并运行 UCOS II操作系统为例介绍SOPC的开发流程. 第一步:建立 Quartus II 工程 建立 Quartus II 工程时需要注意以下几点 1. 器件选择为 EP4CE10F17C8N: 2. 工程路径中不得出现非法字符(空格和中文字符): 3. 开发工具选择 Quartus II 11.0及以上,这里我选择的版本为 Quartus II 15.1. 4…
A mechanism is provided in a data processing system for reliable asynchronous solid-state device based de-duplication. Responsive to receiving a write request to write data to the file system, the mechanism sends the write request to the file system,…
org.apache.hadoop.fs Class FileSystem java.lang.Object org.apache.hadoop.fs.FileSystem All Implemented Interfaces: Closeable, AutoCloseable, Configurable Direct Known Subclasses: FilterFileSystem, FTPFileSystem, KosmosFileSystem, NativeS3FileSystem, …
今天继续调试,又出现了新问题.在执行NIOS程序代码时,不能下载了:Pausing target processor: not responding. Resetting and trying again: FAILED downloading ELF process failed nios工程在编译通过后RUN的过程中出现Error Running Nios II Project: ‘Downloading ELF Process failed’问题原因: 1.nios2 cpu datama…
Introduction The network file system(NFS) is a client/service application that provides shared file storage for clients across a network. An NFS client grafts a remote file system onto the client's local file system name space and makes it behave lik…
NIOS II CPU复位异常的原因及解决方案 近期在用nios ii做项目时,发现一个奇怪的现象,在NIOS II EDS软件中编写好的代码,烧写到芯片中,第一次能够正常运行,但是当我按下板卡上的复位键之后,系统却卡死了,再也运行不起来,除非重新下载程序.经过分析系统可知,系统的硬件设计和Qsys系统中NIOS II CPU系统的搭建都是没有任何问题的.那么为什么会存在这样的问题呢,这里我先简单介绍下我的系统: 我的系统主要由NIOS II最强板CPU,SDRAM.预留系统定时器.预留时间…
Configuration Error Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately. Parser Error Message:…
原文地址:陈晓csdn博客 http://blog.csdn.net/juvxiao/article/details/39495037 论文概况 论文名称:Ceph: A Scalable, High-Performance Distributed File System论文作者:Sage A. Weil Scott A. Brandt Ethan L. Miller Darrell D. E. Long Carlos Maltzahn论文发表单位:University of Californi…
The most current version of this document can be obtained in My Oracle Support Knowledge Document 1375769.1. There is a change log at the end of this document. Note: Sharing the application tier file system is not supported on application tier server…