On 11/05/2006, at 9:17 AM, James C. McPherson wrote:
- Redundancy is performed at the filesystem level, probably on all
disks in the pool.
more at the pool level iirc, but yes, over all the disks where you
have them mirrored or raid/raidZ-ed
Yes, of course. I meant at the filesystem level (ZFS as a whole)
rather than at the sysadmin/application data layout level.
To my way of thinking, you can still separate things out if you're not
comfortable with having everything all together in the one pool. My
take on that though is that it stems from an inability to appreciate
just how different zfs is - a lack of paradigm shifting lets you down.
If I was setting up a db server today and could use ZFS, then I'd be
making sure that the DBAs didn't get a say in how the filesystems
were laid out. I'd ask them what they want to see in a directory
structure and provide that. If they want raw ("don't you know that
everything is faster on raw?!?!") then I'd carve a zvol for them.
Anything else would be carefully delineated - they stick to the rdbms
and don't tell me how to do my job, and vice versa.
Old dogma dies hard.
What we need is some clear blueprints/best practices docs on this, I
think.
_______________________________________________
zfs-discuss mailing list
zfs-discuss@opensolaris.org
http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
