[lug] ide hotswap

j davis davis_compz at hotmail.com
Mon Jun 3 20:16:12 MDT 2002 

well, i got it for free, there does not appear to be to much circutry.the 
person
i got it from says its good for hotswap but then again this person has
problems sending email.so, sorry to bother everyone with a bougus question.
anybody got a suggestion for good ide warm swap?

thanks,
jd

>From: Nate Duehr <nate at natetech.com>
>Reply-To: lug at lug.boulder.co.us
>To: lug at lug.boulder.co.us
>Subject: Re: [lug] ide hotswap
>Date: Mon, 03 Jun 2002 10:59:44 -0600
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>
>How cheap?
>
>If it was less than $50 it was probably built for cold-swap only.  I have 
>two of the $15 ones you can find at places
>like Micro Center / CompUSA and they work great, but they're definitely 
>cold-swap only.  All they have inside is a
>cable header for the IDE bus and a multipin connector the drive bay passes 
>through the data on.  There's a small fan
>for cooling and a power connector to the PC and inside the bay one to the 
>drive.  There's no electronics or IDE
>chipsets in it.
>
>Nate WY0X
>
>j davis wrote:
>
> > yes , i am sure the drive is ment for at least warm swap, i dont really 
>need
> > hot swap, i decided do to my accendital formating of important partitons 
>i
> > am
> > going to have a "warp swap" setup with my ftp box, ill swap the drive to 
>my
> > new box to update it or when i need a iso to burn, otherwise my data 
>archive
> > will
> > remain on my ftp box, not on my dev box :) i just want warm swap so i 
>dont
> > have
> > to transfer 600 meg files, even on lan this takes..6-8 min, and i dont 
>want
> > any
> > important data, even a copy, on my dev box unless its being used in a
> > current
> > project.anyway.....im sure the bay is ment for warm-hotswap, it was 
>really
> > cheap,
> > so if anyone knows of a quality ,reliable, tested warm-swap ide setup 
>could
> > you please let me know.
> >
> > also...i always umount before swap
> >
> > thanks,
> > jd
> >
> > >From: "D. Stimits" <stimits at idcomm.com>
> > >Reply-To: lug at lug.boulder.co.us
> > >To: lug at lug.boulder.co.us
> > >Subject: Re: [lug] ide hotswap
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> > >
> > >j davis wrote:
> > > >
> > > > Hi,
> > > > i have a ide hotswap bay. I tried it on a old p1 running rh7.1 the
> > > > drive would work fine untill i tried to hot swap it. Would comeout
> > > > ok but when i tried to remount i get message in /var/log/messages 
>that
> > > > mk kernel seems to have a problem giving the drive a irq or 
>something.
> > > > I am reinstalling my main box with7.3. I would like to put a 40 gig 
>ibm
> > > > drive in the hotswap bay and use it for a production ftp server. I 
>would
> > > > like to hear anyones experience with ide hotswap.
> > > >
> > > > thanks
> > > > jd
> > > >
> > >
> > >Not all removeable bays are capable of hotswap or warmswap. Warm swap
> > >means an unmounted drive can be added or removed while power is on, hot
> > >swap requires software in addition to warm swap, to deal with a drive
> > >being removed (or failing) while mounted. Looks like you are wanting
> > >warm swap, and the drive does not have to tolerate insert/remove while
> > >mounted. If there is a problem with this, then perhaps your bay is
> > >removeable but not warm swappable (it would have to have extra 
>circuitry
> > >on it to deal with irq or other details, beyond simple cooling and 
>power
> > >surge protection). I use a hot swap scsi backplane, which works fine,
> > >but I suspect an IDE version would have different requirements. Are you
> > >positive that the bay is designed for power-on swapping, and is not 
>just
> > >removeable? And are you sure that all partitions are umount'ed prior to
> > >removal?
> > >
> > >D. Stimits, stimits at idcomm.com
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