Dan Langille wrote:
Boris Kochergin wrote:
Dan Langille wrote:
Boris Kochergin wrote:
Peter C. Lai wrote:
On 2010-02-09 06:37:47AM -0500, Dan Langille wrote:
Charles Sprickman wrote:
On Mon, 8 Feb 2010, Dan Langille wrote:
Also, it seems like
people who use zfs (or gmirror + gstripe) generally end up
buying pricey hardware raid cards for compatibility reasons.
There seem to be no decent add-on SATA cards that play nice with
FreeBSD other than that weird supermicro card that has to be
physically hacked about to fit.
Mostly only because certain cards have issues w/shoddy JBOD
implementation. Some cards (most notably ones like Adaptec 2610A
which was rebranded by Dell as the "CERC SATA 1.5/6ch" back in the
day) won't let you run the drives in passthrough mode and seem to
all want to stick their grubby little RAID paws into your JBOD
setup (i.e. the only way to have minimal
participation from the "hardware" RAID is to set each disk as its
own RAID-0/volume in the controller BIOS) which then cascades into
issues with SMART, AHCI, "triple caching"/write reordering, etc on
the FreeBSD side (the controller's own craptastic cache, ZFS vdev
cache, vmm/app cache, oh my!). So *some* people go with something
tried-and-true (basically bordering on server-level cards that let
you ditch any BIOS type of RAID config and present the raw disk
devices to the kernel)
As someone else has mentioned, recent SiL stuff works well. I have
multiple
http://www.newegg.com/Product/Product.aspx?Item=N82E16816132008
cards servicing RAID-Z2 and GEOM_RAID3 arrays on 8.0-RELEASE and
8.0-STABLE machines using both the old ata(4) driver and ATA_CAM.
Don't let the RAID label scare you--that stuff is off by default
and the controller just presents the disks to the operating system.
Hot swap works. I haven't had the time to try the siis(4) driver
for them, which would result in better performance.
That's a really good price. :)
If needed, I could host all eight SATA drives for $160, much cheaper
than any of the other RAID cards I've seen.
The issue then is finding a motherboard which has 4x PCI Express
slots. ;)
If you want to go this route, I bought one a while ago so that I
could stuff as many dual-port Gigabit Ethernet controllers into it as
possible (it was a SPAN port replicator):
http://www.newegg.com/Product/Product.aspx?Item=N82E16813130136.
Newegg doesn't carry it anymore, but if you can find it elsewhere, I
can vouch for its stability:
# uptime
1:20PM up 494 days, 5:23, 1 user, load averages: 0.05, 0.07, 0.05
In my setups with those Silicon Image cards, though, they serve as
additional controllers, with the following onboard SATA controllers
being used to provide most of the ports:
I don't know what the above means.
I think it means you are primarily using the onboard SATA contollers
and have those Silicon Image cards providing additional ports where
required.
Correct.
SB600 (AMD/ATI)
SB700 (AMD/ATI)
ICH9 (Intel)
63XXESB2 (Intel)
These are the chipsets on that motherboard?
Those are the SATA controller chipsets. Here are the corresponding
chipsets advertised on the motherboards, in north bridge/south bridge form:
SB600 SATA: AMD 770/AMD SB600
SB700 SATA: AMD SR5690/AMD SP5100
ICH9 SATA: Intel 3200/Intel ICH9
63XXESB2 SATA: Intel 5000X/Intel ESB2
-Boris
I haven't had any problems with any of them.
-Boris
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