Data Centre meets Vacuum Cleaner Post: 303014201

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The Lounge War Stories Data Centre meets Vacuum Cleaner Post 303014201 by gull04 on Wednesday 7th of March 2018 04:10:19 AM

03-07-2018

Registered User

Data Centre meets Vacuum Cleaner

Hi Folks,

I have just spent a couple of days resolving some problems at the remote DR data centre, sorting out the problems caused by the over zealous use of a Vacuum cleaner of all things.

We have a backup server a SUN V480R with a Storedge 3510 and expansion attached which suffered a significant unexplained failure, all tracked back to an ID selector being touched by the nozzle of said vacuum cleaner - it looks like things went as follows over a period of time.

When the array was installed the setup was disks 0-9 were setup as a 10way stripe with disks 10 and 11 as hot standby disks. Over a period of time, a disk in the expansion (disk 3) failed and the and the first available spare (disk 10) built from the surviving mirror.

At this point the situation that existed left us exposed in a way which wasn't really appreciated, in that the one of the arrays had both mirrors of one part of the stripe. That would be the part that had the exposed ID selector switch, the one that the Vacuum Cleaner nozzle could change causing the failure of one whole stripe and one slice of an other stripe. The result as you can imagine was somewhat unpredictable, which is exactly what the Sun manual for the array says.

To add insult to injury the contents of the 3510 array, was the Legato Networker Backup Catalogue from the 24 drive ATL - making the recovery somewhat awkward.

What's the point of the story - don't let some idiot into a data centre with a Vacuum Cleaner.

Regards

Gull04

gull04

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LEARN ABOUT DEBIAN

feed2imap-cleaner

feed2imap-cleaner(1)					      General Commands Manual					      feed2imap-cleaner(1)

NAME

       feed2imap-cleaner - Removes old items from IMAP folders

SYNOPSIS

       feed2imap-cleaner [OPTIONS]

DESCRIPTION

       feed2imap-cleaner  deletes  old	items  from  IMAP  folders  specified in the configuration file. The actual query string used to determine
       whether an item is old is : "SEEN NOT FLAGGED BEFORE (3 days ago)". Which means that an item WON'T be deleted if it satisfies  one  of  the
       following conditions :

       o It isn't 3 days old ;

       o It hasn't been read yet ;

       o It is flagged (marked as Important, for example).

       -d, --dry-run
	 Don't remove anything, but show what would be removed if run without this option.

       -f, --config file
	 Use another config file (~/.feed2imaprc is the default).

BUGS

       Deletion criterias should probably be more configurable.

SEE ALSO

       Homepage : http://home.gna.org/feed2imap/

       feed2imaprc(5), feed2imap(1)

AUTHOR

       Copyright (C) 2005 Lucas Nussbaum lucas@lucas-nussbaum.net

       This  program  is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by
       the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

       This program is distributed in the hope that it will be useful, but WITHOUT ANY	WARRANTY;  without  even  the  implied	warranty  of  MER-
       CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

								   Jul 25, 2005 					      feed2imap-cleaner(1)