Date: Sat, 18 May 2013 05:56:30 +0200 From: Damien Fleuriot <ml@my.gd> To: Joshua Isom <jrisom@gmail.com> Cc: "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: Re: ZFS install on a partition Message-ID: <73889732-5BE7-4702-96EB-09BCB128B57D@my.gd> In-Reply-To: <5196B9FA.3090107@gmail.com> References: <F744BBF1-D98C-47BF-9546-14D1A9CB3733@todoo.biz> <5196B9FA.3090107@gmail.com>
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On 18 May 2013, at 01:15, Joshua Isom <jrisom@gmail.com> wrote: > Your hardware raid should be faster than ZFS raid. Don't use zfs raid bec= ause there will be no benefit. =20 Self healing much ? I wouldn't dream of dropping it for a 20mb/s performance increase from a HW c= ontroller. What if the controller derps and writes bad data ? > You'll get the performance of software raid using CPU time, along with los= t space for already backed up data. >=20 > ZFS should work fine. A lot of the tuning on the wiki page isn't needed a= nymore, so it's not too bad. The biggest thing to be careful with is upgrad= ing your zpool, every so often your boot blocks may need updated and if you f= orget, you can't boot. You won't upgrade your pool often of course. Reliab= ility shouldn't be an issue, it's FreeBSD. ZFS will make it easier to play a= round with jails, have fun and create a 1000 node beowulf on one system. >=20 > On 5/17/2013 5:24 PM, bsd@todoo.biz wrote: >> Hi, >>=20 >> I have a question regarding ZFS install on a system setup using an Intel M= odular. >>=20 >> 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). >>=20 >> So from the OS point of view there is just a volume available. >>=20 >>=20 >> I know I should install a system using HBA and JBOD configuration - but u= nfortunately this is not an option for this server. >>=20 >> What would you advise ? >>=20 >> 1. Can I use an existing partition and setup ZFS on this partition using a= standard Zpool (no RAID). >>=20 >> 2. Should I use any other solution in order to setup this (like full ZFS i= nstall on disk using the entire pool with ZFS). >>=20 >> 3. Should I avoid using ZFS since my system is not well tuned and It woul= d be asking for trouble to use ZFS in these conditions. >>=20 >>=20 >> 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. >>=20 >>=20 >> Thanks. >>=20 >>=20 >> ________________________________________________ >> =C2=AB?=C2=BB=C2=A5=C2=AB?=C2=BB=C2=A7=C2=AB?=C2=BB=C2=A5=C2=AB?=C2=BB=C2= =A7=C2=AB?=C2=BB=C2=A5=C2=AB?=C2=BB=C2=A7=C2=AB?=C2=BB=C2=A5=C2=AB?=C2=BB=C2= =A7=C2=AB?=C2=BB=C2=A5=C2=AB?=C2=BB=C2=A7=C2=AB?=C2=BB=C2=A5=C2=AB?=C2=BB=C2= =A7 >> =C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2= =AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2= =AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2= =AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF >> BSD - BSD - BSD - BSD - BSD - BSD - BSD - BSD - >> ________________________________________________ >> =C2=AB?=C2=BB=C2=A5=C2=AB?=C2=BB=C2=A7=C2=AB?=C2=BB=C2=A5=C2=AB?=C2=BB=C2= =A7=C2=AB?=C2=BB=C2=A5=C2=AB?=C2=BB=C2=A7=C2=AB?=C2=BB=C2=A5=C2=AB?=C2=BB=C2= =A7=C2=AB?=C2=BB=C2=A5=C2=AB?=C2=BB=C2=A7=C2=AB?=C2=BB=C2=A5=C2=AB?=C2=BB=C2= =A7 >> =C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2= =AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2= =AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2= =AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF >> PGP ID --> 0x1BA3C2FD >>=20 >> _______________________________________________ >> freebsd-questions@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-questions >> To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.o= rg" >=20 > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.or= g"
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