Dick,

We're using Netapp F720's to store all our datafiles (production and
test) in a small/medium OLTP environment and are quite happy with the
setup. YMMV.

We run out of two sets of collocated servers. At each collocation
there are at least two filers and at least two servers. The filers and
the servers currently have three 100BaseT network connections. One
front channel and two back channels. Each LAN segment is switched.
Thus any server at a location can connect to any filer at that
location. Datafiles can be spread across filers or spread across
channels as performance requires.

The WAFL does indeed write to the nearest available inode and relinks
the inode map.  The unlinked inode is immediately available for
rewrite unless it is a member of a snapshot.  Thus while reserving
unlinked blocks is inefficient from a storage perspective, it is a
factor you get to control by controlling the snapshots.

-rje


-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Robert Eskridge
  INET: [EMAIL PROTECTED]

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
(or the name of mailing list you want to be removed from).  You may
also send the HELP command for other information (like subscribing).

Reply via email to