Jared,
That is what I believe, but of course the NetApp folks keep telling the
powers that be (PTB) that they can handle it & be cheaper in the long run. The
EMC folks on the other hand are telling me that it's risky due to the problems
you encountered with filers plus the network delay to get the write confirmation
needed. Those two could put data files offline at the worst possible time. I
think one item that works against EMC is the fact that they are our current DAS
storage vendor & the PTB believe they want to keep it that way.
Dick Goulet
____________________Reply Separator____________________
Author: [EMAIL PROTECTED]
Date: 7/15/2002 9:39 AM
Dick,
I had a recent bad experience with a NetApps Filer.
Due to circumstances beyond my control, I was about to run
out of space on our most critical application.
( SAP. I predicted in January that we would run out of space
in the first week of July. It happened on June 28th )
Our SA's made temporary storage available on a NetApp filer.
First problem: Veritas BackupExec doesn't know how to backup
files on a filer in some circumstances, my circumstances unfortunately.
Second problem: making a disk to disk backup of the files to
another location on the filer seems to have overwhelmed it.
The files on the file were suddenly unreadable and crashed.
Due to another, unrelated set of unfortunate circumstances ( NT failed
to started one monitoring service, the other died ) I didn't know about
this until the next morning, and manufacturing suffered 2 hours of
downtime.
The filer at this time seemed to be OK. Restart the database, recover
the datafiles ( forgot about 'ALTER TABLESPACE END BACKUP'. D'oh! )
and start the database backup.
The files are now on the SAN where they belong.
Spend the extra $$ and put in a SAN.
Faster, more reliable, more managable.
Jared
[EMAIL PROTECTED]
Sent by: [EMAIL PROTECTED]
07/15/2002 07:43 AM
Please respond to ORACLE-L
To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]>
cc:
Subject: Oracle and NAS storage systems
Folks,
I've been asked to validate/invalidate a contention made by two
storage
vendors.
NetAppliance has stated that you can use a netapp filer with Oracle
for
datafiles, although their configuration looks more like a DAS(direct
attached
storage) configuration using 10baseT cables vs. SCSI cables. Of course
their
real claim to fame here is Oracle's endorsement.
EMC on the other hand has stated that using a NAS, in the traditional
mode,
for Oracle datafiles is at best risky. And although their product can
support
it, they do not recommend doing so for several of the reasons that I've
held out
are pertinent.
Therefore, is there anyone out their using a NAS to store datafiles?
If so,
what does the configuration (server to NAS) look like?
Dick Goulet
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