Brian D. Ropers-Huilman wrote:
On 12/11/06, Craig Tierney <[EMAIL PROTECTED]> wrote:
Lustre supports redundant meta-data servers (MDS) and failover for the
object-storage servers (OSS). However, "high-performing" is relative.
Great at streaming data, not at meta-data.
Which is really the bane of all cluster file systems, isn't it? Meta
data accesses kill performance.
Some are better than others. Lustre could have been designed from day
one so that every OSS was also a metadata server (MDS), but they didn't.
It is on their roadmap to distribute meta-data, but it doesn't look like
there will be a 1 to 1 relationship between MDS and OSS.
If I wanted a more general purpose distributed filesystem, those with
distributed meta-data can provide better performance. If I wanted to
provide a filesystem to my users where compiles wouldn't be horribly
painful, tests with Ibrix showed it was adequate. I would be interested
in testing some of the others (Panasas, Isilon) to see how they compare.
Craig
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