Freddie Cash wrote:
On Tue, Feb 9, 2010 at 3:37 AM, Dan Langille <[email protected]> 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.
They use software RAID and hardware RAID at the same time? I'm not sure
what you mean by this. Compatibility with FreeBSD?
Add-on (PCI-X/PCIe) RAID controllers tend to have solid drivers in FreeBSD.
Add-on SATA controllers not so much. The RAID controllers also tend to
support more SATA features like NCQ, hot-swap, monitoring, etc. They also
enable you to use the same hardware across OSes (FreeBSD, Linux, etc).
For example, we use 3Ware controllers in all our servers, as they have good,
solid support under FreeBSD and Linux. On the Linux servers, we use
hardware RAID. On the FreeBSD servers, we use them as SATA controllers
(Single Disk arrays, not JBOD). Either way, the management is the same, the
drivers are the same, the support is the same.
It's hard to find good, non-RAID, SATA controllers with solid FreeBSD
support, and good throughput, with any kind of management/monitoring
features.
And I thought I found one in the Adaptec 1405 Integrated SAS/SATA
controller, because it's marketed as an inexpensive SAS/SATA non-RAID
addon-card. On top of that, they advertise it as having FreeBSD6 and
FreeBSD7-support and drivers. So I ordered it for my storage-box
(FreeNAS) with great expectations. Sadly, they don't have support nor
drivers for FreeBSD ("drivers will be released Q4 2009") at all, so I'm
thinking of leaving FreeNAS and trying some linux-flavor that does
support this card...
But Adaptec doesn't have a great track-record for FreeBSD-support, does it?
André Wensing
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