BTW, the following text from another discussion may be helpful towards your 
concerns.
What to use for RAID is not a fixed answer, but using ZFS can be a good 
thing for many cases and reasons, such as the price/performance concern as 
Bob highlighted.

And note Bob said "client OSs". To me, that should read "host OSs", since 
again, I am an enterprise guy, and my ideal way of using ZFS may differ from 
most folks today.

To me, I would take ZFS for SAN-based virtualization and as a file/IP-block 
services gateway to applications (and file services to clients is one of the 
"enterprise applications" by me.) For example, I would then use different 
implementations for CIFS and NFS serving, not using the ZFS native NAS 
support to clients, but the ZFS storage pooling and SAM-FS management 
features.
(I would use ZFS in a 6920 fashion, if you don't know what I am talking 
about --
http://searchstorage.techtarget.com/news/article/0,289142,sid5_gci1245572,00.html)

Sorry, I don't want to lead the discussion into file systems and NFV, but to 
me, ZFS is very close to WAFL design point, and the file system involvements 
in RAID and PiT and HSM/ILM and application/data security/protection and 
HA/BC functions are vital.
:-)
z

___________________________

I do agree that when multiple client OSs are involved it is still useful if 
storage looks like a
legacy disk drive.  Luckly Solaris already offers iSCSI in Solaris 10
and OpenSolaris is now able to offer high performance fiber channel
target and fiber channel over ethernet layers on top of reliable ZFS.
The full benefit of ZFS is not provided, but the storage is
successfully divorced from the client with a higher degree of data
reliability and performance than is available from current firmware
based RAID arrays.

Bob
======================================
Bob Friesenhahn



----- Original Message ----- 
From: "JZ" <j...@excelsioritsolutions.com>
To: "Orvar Korvar" <knatte_fnatte_tja...@yahoo.com>; 
<zfs-discuss@opensolaris.org>
Sent: Sunday, December 28, 2008 7:55 PM
Subject: Re: [zfs-discuss] ZFS vs HardWare raid - data integrity?


> The hyper links didn't work, here are the urls --
>
> http://queue.acm.org/detail.cfm?id=1317400
>
> http://www.sun.com/bigadmin/features/articles/zfs_part1.scalable.jsp#integrity
>
> >>> This message posted from opensolaris.org
>>> _______________________________________________
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>>
>> _______________________________________________
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