Testing Perc2/Si RAID under RedHat 7.2

Kate Rosenbloom kate at rapidmoney.com
Fri Mar 29 17:36:00 CST 2002


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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