Re: Partition Size/performance

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From: Mike Brearley (mike_brearleyNOSPAM_at_DONTDOIThotmail.com)
Date: 03/10/04 

Date: Wed, 10 Mar 2004 08:35:45 -0500

I've swapped two drive cages... now to wait and see. As of right now,
everything is still up and running. I'm thinking possibly a SATA cable may
be the issue rather than the promise card or the superswap's, I really don't
know. We'll see. If the same drive goes off, I'll swap the cable and see
what happens after that.

Actually, I need to contact promise as well. When a drive goes offline,
it's reported as Free in the BIOS level raid utility, but in the Windows
version (PAM) it's shown as offline and I can't do a thing with it (even
after a reboot). This is a problem because it makes the idea of hot swap go
right out the window. I'm forced to go into the BIOS utility, create a JBOD
array with that single disk, boot into windows, start up the promise array
management software (pam), delete the new jbod array and then I can re-build
the raid-5 array with the now online disk. What a PAIN!! lol 

-- 
Posted 'as is'.  If there are any spelling and/or grammar mistakes, they
were a direct result of my fingers and brain not being synchronized or my
lack of caffeine.
Mike Brearley
"Bjorn Landemoo" <mvp2.REMOVE@landemoo.com> wrote in message
news:o26s40dv4m7b0gvb1bcptsdmoh8bl5pute@4ax.com...
> Mike
>
> If there, for instance, is something wrong with the SATA contact in the
> drive cage, it might still be reported as on line by the drive cage, while
> the controller might have another opinion... This would explain your
> performance issue.
>
> Swapping drive cage will reveal if it is at fault, next time a disk goes
> off. Probably it will be the disk that you swapped into this same drive
> cage.
>
> Best regards
>
> Bjorn
> -- 
> Bjorn Landemoo - mvp2@landemoo.com - http://landemoo.com/
> Microsoft MVP - Windows Server Networking
>
> "Mike Brearley" <mike_brearleyNOSPAM@DONTDOIThotmail.com> wrote:
>
> >Strangely enough, no.  I guess saying that it goes offline isn't quite
the
> >right way to put it.  The monitoring for it is unavailable and the
> >controller card states that it's offline, however the lights on it are
still
> >active and show it as online.
> >
> >Everything was working for about 3 days until last night around 1 am I
> >received an e-mail from the management utility stating the drive went
> >offline.  I have yet to swap everything around as promise wanted me to
> >because I haven't had the time.  I'm preparing for it now and will
probably
> >try it tonight or tomorrow.
> >
> >-- 
> >Posted 'as is'.  If there are any spelling and/or grammar mistakes, they
> >were a direct result of my fingers and brain not being synchronized or my
> >lack of caffeine.
> >
> >Mike Brearley
> >
> >
> >"Bjorn Landemoo" <mvp2.REMOVE@landemoo.com> wrote in message
> >news:6erh401nbvm74sgteinlq7l9dlrc4c5l29@4ax.com...
> >> Mike
> >>
> >> Doesn't the controller lose contact with a hard drive when the
enclosure
> >> goes offline, practically meaning that the disk also goes offline?
> >>
> >> Sorry for all my questions, my experience is with SCSI RAID with a
> >> backplane, or with software RAID. I haven't had the opportunity to play
> >> with IDE or SATA RAID, yet. By the way, 3ware seems to have nice
> >backplanes
> >> for four SATA drives that will fit in two 5½" slots.
> >>
> >> Best regards
> >>
> >> Bjorn
> >> -- 
> >> Bjorn Landemoo - mvp2@landemoo.com - http://landemoo.com/
> >> Microsoft MVP - Windows Server Networking
> >>
> >> "Mike Brearley" <mike_brearleyNOSPAM@DONTDOIThotmail.com> wrote:
> >>
> >> >There is monitoring available and it tells me when a disk goes
offline,
> >but
> >> >not when a drive enclosure goes offline.  I called promise and now I
need
> >to
> >> >swap two drive cages around (the one that's going offline with another
> >one).
> >> >So that means I have to move the physical units around as the cables
> >Promise
> >> >gives you to daisy chain the enclosures together for the monitoring is
> >just
> >> >long enough to go from one unit on top to the unit directly beneath
it.
> >> >Otherwise, I could have just moved the sata cable and re-arranged how
one
> >> >enclosure was linked to the other.  :(
> >> >
> >> >I'll do that over the weekend and see what happens...
> >>
> >
>

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