Testing Perc2/Si RAID under RedHat 7.2

Michael_E_Brown@Dell.com Michael_E_Brown at Dell.com
Fri Mar 29 17:38:00 CST 2002


Yes, this sounds correct. 
--
Michael

> -----Original Message-----
> From: Kate Rosenbloom [mailto:kate at rapidmoney.com]
> Sent: Friday, March 29, 2002 5:36 PM
> To: Michael_E_Brown at exchange.dell.com
> Cc: Linux-PowerEdge at exchange.dell.com
> Subject: Re: Testing Perc2/Si RAID under RedHat 7.2
> 
> 
> Thanks, this is very helpful.
> Regarding the specific CLI commands, from the on-line manual, 
> I'd guess
> I should
> use the following:
> 
> 	Before pulling a drive:
> 		> enclosure prepare slot 
> 	After inserting a drive
> 		> enclosure activate slot 
> 
> Should this suffice to safely remove and reinsert a drive ?
> 
> 	Thanks,
> 		Kate
> 
> Michael_E_Brown at Dell.com wrote:
> > 
> > Sorry, but hotswap doesn't mean what you think it means.
> > 
> > Hotswap means that you can run 'afacli' and do a "prepare 
> for removal"
> > command which turns off power to a certain SCSI slot. Then 
> you can safely
> > remove it. You do the same thing to add a drive. After you 
> have added it,
> > there is a "turn the thing back on" command.
> > 
> > Yes, yanking a drive from a running system can certainly do 
> any one of a
> > number of bad things. So, no, I don't really know how to 
> 'safely' test this
> > option.
> > 
> > --
> > Michael
> > 
> > > -----Original Message-----
> > > From: Kate Rosenbloom [mailto:kate at rapidmoney.com]
> > > Sent: Friday, March 29, 2002 3:47 PM
> > > To: Linux-PowerEdge at exchange.dell.com
> > > Subject: Testing Perc2/Si RAID under RedHat 7.2
> > >
> > >
> > > Is there a safe way to test software notification of disk 
> problems on
> > > our PowerEdge 2400, running RedHat 7.2 ??  We would like to
> > > verify that
> > > if a disk fails, that an entry appears in 
> /var/log/messages (we use
> > > "swatch"
> > > as a log monitor -- and we will configure it to email us 
> if it sees
> > > AAC:).
> > >
> > > We attempted to test this on our system while running 
> RedHat 6.2, and
> > > saw
> > > no such log messages.  When we called Dell tech support 
> and explained
> > > our
> > > test scenario (pull a drive while the system is running) 
> we provoked
> > > horrified
> > > lectures about potential damage to our drives.  (So "hot
> > > swap" means OK
> > > to
> > > add a disk while system is running, but not to remove a 
> working drive
> > > ??)
> > >
> > > Is there a "safe" way to perform this test ??   We need 
> to assure that
> > > notification will happen...
> > >
> > > Please reply to me as well as to the list.
> > >
> > >       Thanks in advance,
> > >
> > >               Kate Rosenbloom
> > >               RapidMoney Corp.
> > >               Santa Cruz, CA
> > >
> > > _______________________________________________
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> > > Linux-PowerEdge at dell.com
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> > >
> 




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