[nycbug-talk] fave BSD tips/tricks?

[Jesse Callaway]

On Mon, Aug 24, 2009 at 6:24 PM, Charles Sprickman<spork at bway.net> wrote:
> On Mon, 24 Aug 2009, George Rosamond wrote:
>
>> RAID STATUSES DAILY
>>
>> I get lots of dailies. . . and always add the following to cron on its own:
>> status of RAIDs on the local box.  Every blob or BSD software raid solution
>> has its 'status' check, and seeing an email specific on that makes me sleep
>> better.
>
> That's a good one.
>
> For gmirror, at some point this file showed up in /etc/periodic/daily:
>
> /etc/periodic/daily/406.status-gmirror
>
> Which is activated by setting daily_status_gmirror_enable="YES" in
> /etc/periodic.conf.
>
> Actually, just looking through /etc/defaults/periodic.conf is handy as
> well.  You can combine your daily and security emails into one, turn off
> checks that you don't need (ie: the r* checks), and basically trim your
> daily reports down to something more manageable.
>
> Back to RAID, some cards, like the LSI stuff in Dells that use the mpt
> driver have no utility to manage or check the status.  But there is some
> info on "non-optimal volumes" available in the sysctl output.  Some other
> drivers with no management software may do the same.
>
> Regardless, here's a silly shell script I dumped in
> /usr/local/etc/periodic/daily to put RAID status in my daily emails:
>
> ----
> #!/bin/sh
>
> # show number of non-optimal drives attached to mpt raid card
>
> NONOPT=`/sbin/sysctl -n dev.mpt.0.nonoptimal_volumes`
>
> echo
> echo "Checking MPT RAID array"
> echo
>
> if [ $NONOPT -eq 0 ]; then
>         echo "No non-optimal volumes: ($NONOPT)"
> elif [ $NONOPT -ne 0 ]; then
>         echo "WARNING, $NONOPT non-optimal volumes!"
> fi
> ----
> Charles
>
>>
>> g
>>
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If anyone uses the megacli program... the camel case and the dashes
before any arguments are optional.