| From: | "Merlin Moncure" <mmoncure(at)gmail(dot)com> |
|---|---|
| To: | "Luke Lonergan" <llonergan(at)greenplum(dot)com> |
| Cc: | "Brian Hurt" <bhurt(at)janestcapital(dot)com>, "Brian Wipf" <brian(at)clickspace(dot)com>, pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: File Systems Compared |
| Date: | 2006-12-06 20:12:24 |
| Message-ID: | b42b73150612061212l7111308bsbbddbd253927e232@mail.gmail.com |
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| Lists: | pgsql-performance |
On 12/6/06, Luke Lonergan <llonergan(at)greenplum(dot)com> wrote:
> People buy SANs for interesting reasons, some of them having to do with the
> manageability features of high end SANs. I've heard it said in those cases
> that "performance doesn't matter much".
There is movement in the industry right now away form tape systems to
managed disk storage for backups and data retention. In these cases
performance requirements are not very high -- and a single server can
manage a huge amount of storage. In theory, you can do the same thing
attached via sas expanders but fc networking is imo more flexible and
scalable.
The manageability features of SANs are a mixed bag and decidedly
overrated but they have a their place, imo.
merlin
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