想问一个关于负载集群的共享磁盘争用的基本概念！

nntp

原帖由 yangze_tj 于 2006-2-26 21:54 发表
我不太明白斑竹说的意思，我理解的“并行文件系统”有两个方面
1、是不同的node可以同时读取和写入同一个文件系统中的相同、不同的文件或数据（类似ORACLE RAC中的文件系统共享方式）
2、是在同一node上需要读取 ...

1. cluster aware/wide FS ( TruCluster cluster wide FS, ocfs, ocfs2, polyserv, GFS ....)
2. Parallel FS (lustre, SFS, GPFS, PVFS.....)


in cluster FS,   FS are locate on classic storage system such as DAS, NAS(netapp filer), SAN.
in Parallel FS, FS are seperated on different computing system that Act as "storage Nodes" and "Storage Meta Nodes". Normally we use cheap IA server present those "nodes". for extend solution, normally we attach some cheap DAS storage to some nodes.

that's totally different.
Tons of  research & analysis information from the internet,  i don't think it is worth to discuss further if anyone still lack of basic concepts.

[ 本帖最后由 nntp 于 2006-2-27 01:58 编辑 ]

q1208c

看了几位高人的回帖, 长了不少见识.
小弟以为, 楼主的问题有点象 LVS 的后端数据怎么处理.  我想这个跟LVS的处理方式应该差不多吧?

nntp

原帖由 q1208c 于 2006-2-27 14:03 发表
看了几位高人的回帖, 长了不少见识.
小弟以为, 楼主的问题有点象 LVS 的后端数据怎么处理.  我想这个跟LVS的处理方式应该差不多吧?

That's correct. F5 has similar function with LVS.

njblue2004

经过几天看文档,了解了一些

我想先把lvs 做一下,

然后用GFS做后台共享的文件系统试一下

谢谢版主了,


受益不小

ljhb

原帖由 q1208c 于 2006-2-27 14:03 发表
看了几位高人的回帖, 长了不少见识.
小弟以为, 楼主的问题有点象 LVS 的后端数据怎么处理.  我想这个跟LVS的处理方式应该差不多吧?

lvs 的官方网站上推荐用coda

njblue2004

现在也在想试一下,

能解决后台共享数据的写和读的争用,

不知道哪位高人有这个经验啊?

q1208c

原帖由 njblue2004 于 2006-2-27 19:27 发表
现在也在想试一下,

能解决后台共享数据的写和读的争用,

不知道哪位高人有这个经验啊?

NFS.

后台用双机做一个 NFS Server. 然后大家共享.

yangze_tj

GFS不属于并行文件系统吗?我查了些资料说它是呀?

nntp

原帖由 yangze_tj 于 2006-2-28 15:56 发表
GFS不属于并行文件系统吗?我查了些资料说它是呀?

GFS 可以做 cluster filesystem,也可以在Parallel的环境中作Parallel FS.

=======================================================
http://www.redhat.com/en_us/USA/home/solutions/gfs/

Red Hat GFS is...

    * The only native 64-bit cluster file system on Linux for enterprise workloads - support for x86, AMD64/EM64T, and Itanium
    * The most scalable enterprise cluster file system on Linux - supported up to 256 nodes
    * Tightly integrated with Red Hat Enterprise Linux (no patching needed)
    * The only open source (GPL) cluster file system for enterprise workloads
    * POSIX-compliant, meaning applications don't have to be rewritten to use GFS

=========================================================

Red Hat GFS is commonly used in clusters of enterprise applications to provide a consistent file system image across the server nodes. This allows the cluster nodes to simultaneously read and write to a single shared filesystem. Typical application clusters where Red Hat GFS is deployed today include:

    * Databases (including Oracle RAC - see this whitepaper on the benefits of using
    * GFS with Oracle RAC) Application and web servers
    * In-house custom applications
    * High-performance compute clusters where NFS scalability and performance are key

Red Hat Global File System (GFS) is supported for use with Red Hat Enterprise Linux AS, Red Hat Enterprise Linux WS, and Red Hat Enterprise Linux ES on x86, AMD64/EM64T and Itanium. Like all Red Hat solutions, it is delivered through Red Hat Network on an annual subscription basis.
============================================================

[ 本帖最后由 nntp 于 2006-3-1 00:19 编辑 ]

njblue2004

这两天我在做lvs dr

如能成功,再做nfs的共享


理解概念很困难!