On Sep 8, 12:34pm, Konstantin Olchanski wrote:
} Subject: Re: Anyone clueful on forcing 3ware drive discovery?
Hi Konstantin, thanks for the note.
> On Thu, Sep 08, 2005 at 02:14:32PM -0500, Dr. Greg Wettstein wrote:
> > We are using a number of 3Ware 75xx and 8xxx controller cards...
> > Last week we had a 7508 kick a drive on an AEN, presumably tripped by
> > a SMART event on the drive. After the error the controller disavowed
> > all knowledge of the drive and we had to power cycle the machine to
> > get the controller card to recognize the drive.
> I once saw a similar fault with a SATA disk on a 3ware-SATA controller-
> it could not be accessed until power cycled. I assume the disk firmware
> crashed (or whatever) and stopped talking on the SATA interface.
>
> Maybe some hot-plug hardware allows cycling power on individual disks
> without physically walking/cycling/driving to the computer and doing
> it the hard way by pulling the disk out (pulling a spinning disk out, bad,
> bad, bad!).
Thanks for the data-point.
I'm actually less concerned about pulling a SATA drive, especially one
which has been configured into a hot-plug chassis. One of the design
tenants of SATA was to support this. I will hopefully be doing some
testingn this week with our SATA based machines. I haven't had
feedback from 3Ware but we will see what the hardware does in this
situation.
I wouldn't even attempt to pull a PATA drive. They were just never
designed for that sort of thing.
> Konstantin Olchanski
Thanks again for taking the time to reply.
Best wishes for a productive week.
}-- End of excerpt from Konstantin Olchanski
As always,
Dr. G.W. Wettstein, Ph.D. Enjellic Systems Development, LLC.
4206 N. 19th Ave. Specializing in information infra-structure
Fargo, ND 58102 development.
PH: 701-281-1686
FAX: 701-281-3949 EMAIL: greg@xxxxxxxxxxxx
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