Your hardware raid should be faster than ZFS raid. Don't use zfs raid
because there will be no benefit. You'll get the performance of
software raid using CPU time, along with lost space for already backed
up data.
ZFS should work fine. A lot of the tuning on the wiki page isn't needed
anymore, so it's not too bad. The biggest thing to be careful with is
upgrading your zpool, every so often your boot blocks may need updated
and if you forget, you can't boot. You won't upgrade your pool often of
course. Reliability shouldn't be an issue, it's FreeBSD. ZFS will make
it easier to play around with jails, have fun and create a 1000 node
beowulf on one system.
On 5/17/2013 5:24 PM, b...@todoo.biz wrote:
Hi,
I have a question regarding ZFS install on a system setup using an Intel
Modular.
This system runs various flavor of FreeBSD and Linux using a shared pool (LUNs).
These LUNs have been configured in RAID 6 using the internal controller (LSI
logic).
So from the OS point of view there is just a volume available.
I know I should install a system using HBA and JBOD configuration - but
unfortunately this is not an option for this server.
What would you advise ?
1. Can I use an existing partition and setup ZFS on this partition using a
standard Zpool (no RAID).
2. Should I use any other solution in order to setup this (like full ZFS
install on disk using the entire pool with ZFS).
3. Should I avoid using ZFS since my system is not well tuned and It would be
asking for trouble to use ZFS in these conditions.
P.S. Stability is a must for this system - so I won't die if you answer "3" and
tell me to keep on using UFS.
Thanks.
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