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Storage and Availability Management

Showing posts tagged with Benchmark remove filter
SPECsfs Benchmark
ya | 14 Apr 2011 | 0 comments

Last week, Symantec reclaimed its #1 spot on SPECsfs2008benchmark with 636k iops for NFSand 712k iops for CIFSwith its FileStore N8x00 clustered NAS systems, breaking the previous record of 497k iops for NFS and 661k for CIFS.

These new numbers have shown that astonishing results are ultimately driven by optimization in the file system software. It also highlights that to achieve a high performing solution, throwing expensive hardware isn’t always the way to go.  Looking at the results from the software side – taking the Infiniband, SSD’s and other high priced items out of the equation – Symantec’s  solution can give a much more scalable solution based upon cheap commodity hardware, and without any flash drive or LUN level tuning. The...

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Benchmark Results show VxFS faster than ZFS
charmer | 06 Aug 2007 | 3 comments

Last week Symantec published some benchmark results comparing Storage Foundations and ZFS that suggest VxFS is around 3 times faster than ZFS for workloads  typical of many commercial applications.  These results  contrast sharply with some benchmark results published by Sun which  suggest that VxFS is about 1/3 the speed of ZFS.

I'm sure this is going to leave a lot of people scratching their heads and asking "how can the results be so different?".   The complete answer to that question is quite long, but I can try to offer a summary.  Unfortunately, that will leave out many important details.  I hope to address those in another article.

The short answer is that Symantecs' results are based...

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Sun's Comparision of VxFS and ZFS Scalability is Flawed
charmer | 17 Jul 2007 | 7 comments
Some engineers at Sun promoting ZFS have been publishing comparisons between VxFS and ZFS that are rather unflattering to VxFS. You can read the most recent white papers they've published comparing ZFS with VxFS, ext3, and Window's NTFS as well as some blog entries comparing the performance of VxFS and ZFS.

The comparisons with VxFS appear to be objective, but in fact the performance comparisons are chosen quite selectively. In addition, the most recent white paper contains a few significant errors.

Going through the most recent white paper from beginning to end, the first thing to strike me were some significant errors in the discussion of file system scalability.  Errors include the...

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