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#1
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Some questions about SAN file managmerment
Hi all,
I have some questions about the file managerment system on SAN architecutre. Since I want to build a SAN system that all of the servers can read/ write the same disk volumn simultaneously, a file managerment system is needed to control the data access. Is there any good data management systems to arbitrate the usage of shared storage? I have did a brief survey about this kind of system, such as Stornext File System, Tivoli SANergy, and Tiger MataSAN. Stornext FS and SANergy seem to be the popular systems. They both operate at RHEL and Microsoft Windows and provide good controllability. MataSAN is a new SAN management software. However, the MataSAN server is only running on OS X or Windows. RHEL must be the MataSAN client. Is there other choice about the file manager? Thanks a lot. |
#2
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Some questions about SAN file managmerment
Kurt Lin wrote:
Hi all, I have some questions about the file managerment system on SAN architecutre. Since I want to build a SAN system that all of the servers can read/ write the same disk volumn simultaneously, a file managerment system is needed to control the data access. Is there any good data management systems to arbitrate the usage of shared storage? I have did a brief survey about this kind of system, such as Stornext File System, Tivoli SANergy, and Tiger MataSAN. Stornext FS and SANergy seem to be the popular systems. They both operate at RHEL and Microsoft Windows and provide good controllability. MataSAN is a new SAN management software. However, the MataSAN server is only running on OS X or Windows. RHEL must be the MataSAN client. Is there other choice about the file manager? Thanks a lot. SGI CXFS http://www.sgi.com/products/storage/software/cxfs.html. Client machines: SLES, RHEL, Solaris, Windows, Mac. Oh, but you must use SGI Altix systems running SLES as controllers. Disclaimer: I work for SGI, and used to work on CXFS. Cheers, Gary B-) -- __________________________________________________ ____________________________ Armful of chairs: Something some people would not know whether you were up them with or not - Barry Humphries |
#3
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Some questions about SAN file managmerment
Thank you Gary!
I'll read the data sheet and documents of SGI CXFS to see if it is really what I want. Besides, I also found some GPL software, such as GFS, GFS2, or OCFS. Do you have the experience of using those GPL software? |
#4
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Some questions about SAN file managmerment
On Oct 7, 6:41*am, "Gary R. Schmidt" wrote:
SGI CXFS http://www.sgi.com/products/storage/software/cxfs.html. Client machines: SLES, RHEL, Solaris, Windows, Mac. *Oh, but you must use SGI Altix systems running SLES as controllers. Does CXFS support a way to flush data caches on all the clients yet ? Last time I checked, the metadata cache could be flushed, but the only way to get a consistent data image (for point-in-time replication for example), is to unmount the file system on all servers. |
#5
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Some questions about SAN file managmerment
Does this problem happen frequently?
I found similar problems in Stornext FS and SANergy. It sounds like the SAN file management system is not very stable. |
#6
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Some questions about SAN file managmerment
Kurt Lin wrote:
Thank you Gary! I'll read the data sheet and documents of SGI CXFS to see if it is really what I want. Besides, I also found some GPL software, such as GFS, GFS2, or OCFS. Do you have the experience of using those GPL software? No, sorry, have to stay away from them to avoid copyright pollution. Cheers, Gary B-) -- __________________________________________________ ____________________________ Armful of chairs: Something some people would not know whether you were up them with or not - Barry Humphries |
#7
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Some questions about SAN file managmerment
belpatCA wrote:
On Oct 7, 6:41 am, "Gary R. Schmidt" wrote: SGI CXFS http://www.sgi.com/products/storage/software/cxfs.html. Client machines: SLES, RHEL, Solaris, Windows, Mac. Oh, but you must use SGI Altix systems running SLES as controllers. Does CXFS support a way to flush data caches on all the clients yet ? Last time I checked, the metadata cache could be flushed, but the only way to get a consistent data image (for point-in-time replication for example), is to unmount the file system on all servers. No idea, it's been a couple of years, they could have done just about anything! Cheers, Gary B-) -- __________________________________________________ ____________________________ Armful of chairs: Something some people would not know whether you were up them with or not - Barry Humphries |
#8
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Some questions about SAN file managmerment
Kurt Lin wrote:
Does this problem happen frequently? I found similar problems in Stornext FS and SANergy. It sounds like the SAN file management system is not very stable. Oh, it's stable, but (as a generalisation) it's stable for *performance*, not for shared access. After all, 99.9999999% of the potential customers are after speed, not sharing. Cheers, Gary B-) -- __________________________________________________ ____________________________ Armful of chairs: Something some people would not know whether you were up them with or not - Barry Humphries |
#9
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Some questions about SAN file managmerment
On Oct 7, 12:40*pm, belpatCA wrote:
On Oct 7, 6:41*am, "Gary R. Schmidt" wrote: SGI CXFS http://www.sgi.com/products/storage/software/cxfs.html. Client machines: SLES, RHEL, Solaris, Windows, Mac. *Oh, but you must use SGI Altix systems running SLES as controllers. Does CXFS support a way to flush data caches on all the clients yet ? Last time I checked, the metadata cache could be flushed, but the only way to get a consistent data image (for point-in-time replication for example), is to unmount the file system on all servers. what is/are the client OS(s)...it currently supports this for Windows clients |
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