raid backup

Vasenin Alexander aka BlackSir blacksir at
Sat May 29 05:21:00 PDT 2004

I'm watched nearly same thing yesterday and found, that all cheap solutions is the so-called HostRAID, that are software or
semi-software implementations of RAID. So, their "RAID" ability supported only by M$ Window$. Under FreeBSD they work as normal
IDE/SCSI/SATA controllers. I've tested yesterday one of them - Adaptec on AIC 7899 chip. Take a look at hardware notes on 4.10, for
example "Promise Fasttrak-33, -66, -100, -100 TX2/TX4, -133 TX2/TX2000" - noone except Promise calls it RAID...
	Vasenin Alexander aka BlackSir

> -----Original Message-----
> From: owner-freebsd-isp at [mailto:owner-freebsd-isp at]On Behalf Of Michael Vince
> Sent: Saturday, May 29, 2004 2:03 PM
> Cc: freebsd-isp at; freebsd-performance at; Maksymilian Wrzesinski
> Subject: Re: raid backup
> Looking around on the net and FreeBSD archives it looks like if you want
> cheap ATA Raid now go with either a Intel motherboard with ICH5 or
> Promise SATA TX2/TX4
> The performance of the Intel ICH5 looks very good with low CPU
> utilization (well from what benchmarks in running from MS windows suggest)
> I haven't found any clear documentation on what can and cant be used.

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