Hello Larry , The inserted eamil was dropped on the list awhile
back . See after .sig . JimL
On Tue, 1 Jul 2003, Larry McVoy wrote:
> Does anyone know how to enable caching on a mylex AcceleRAID 170 (aka
> DAC960) SCSI controller? We've got the bkbits.net data mirrored at
> rackspace.com but the controllers are read and write cache disabled.
> I read the driver source and it doesn't offer this ability via the
> /proc configuration space which is where I would have expected it.
> Is this a bios only thing?
--
+------------------------------------------------------------------+
| James W. Laferriere | System Techniques | Give me VMS |
| Network Engineer | P.O. Box 854 | Give me Linux |
| babydr@baby-dragons.com | Coudersport PA 16915 | only on AXP |
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On Mon, 5 Feb 2001, Dan Jones wrote:
> Date: Mon, 05 Feb 2001 17:28:05 -0800
> From: Dan Jones <djones@valinux.com>
> To: octave klaba <oles@ovh.net>
> Cc: "linux-raid@vger.kernel.org" <linux-raid@vger.kernel.org>
> Subject: Re: DAC960 & cache
>
> octave klaba wrote:
> >
> > Hello,
> >
> > On Mylex 170 we have, the read/write cache disabled.
> > How can I switch it on ? Since we have it with raid-1
> > and the hd has the cache too, do we lose the data if
> > the server caches ?
> >
> > Thanks
> > Octave
> >
> > DAC960#0: Logical Drives:
> > DAC960#0: /dev/rd/c0d0: RAID-1, Online, 35807232 blocks
> > DAC960#0: Logical Device Initialized, BIOS Geometry:
> > 255/63
> > DAC960#0: Stripe Size: 64KB, Segment Size: 8KB
> > DAC960#0: Read Cache Disabled, Write Cache Disabled
> > -
> > To unsubscribe from this list: send the line "unsubscribe linux-raid" in
> > the body of a message to majordomo@vger.kernel.org
>
> The cache policy can be switched via the Mylex firmware. Check out
> Mylex's searchable FAQ. Try searching on enable cache. The
> instructions cover the DACCF firmware. EzAssist will be different:
>
> http://mylex.custhelp.com/cgi-bin/mylex.cfg/php/enduser/home.php
>
> The A170 doesn't have a battery, so remember to allow the cache to
> flush before resetting or power cycling your system:
> --
> Dan Jones, Manager, Storage Products VA Linux Systems
> V:(510)687-6737 F:(510)683-8602 47071 Bayside Parkway
> djones@valinux.com Fremont, CA 94538
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