Re: opinion on which software RAID to use

2006-03-02 Thread Alec Berryman
Rink Springer on 2006-03-02 20:30:03 +0100:

> Hi Vivek,
> 
> > Any opinions on which has both qualities: easy to configure/manage  
> > (ie, recover after failure) and performance?  The handbook RAID page  
> > doesn't even mention gmirror.  The atacontrol seems very simple to  
> > use, at least.
> 
> I've had very good results with gmirror. It's very easy to set up,
> performance is good (didn't really benchmark it though) and recovering
> faulty drives is easy to do. Never had a problem with it ...

I'll second gmirror.  An excellent tutorial may be found at
http://people.freebsd.org/~rse/mirror/.


pgpUfOJnPOvvh.pgp
Description: PGP signature


Re: GELI question

2006-02-18 Thread Alec Berryman
Balgansuren Batsukh on 2006-02-18 12:47:29 +0800:

> I am trying to install/use FreeBSD-6.0-RELEASE.

[...]

> when i try to use "geli init -b /dev/ad0" on shell prompt, it says
> "Unknown command: init"

I had the same issue while using the Fixit image from the 6.0-RELEASE
install cd; if you're having a problem there, to get GELI working
properly you'll want to `ln -s /dist/lib /` and
`ln -s /dist/boot/kernel /boot/`.


pgpMtKcmDfAJT.pgp
Description: PGP signature


Re: Encrypt existing filesystem/partition to GEOM GELI

2006-02-14 Thread Alec Berryman
Balgansuren Batsukh on 2006-02-15 00:17:18 +0800:

> It is delete/erase existing all data on hard disk/partition.
> 
> I need to find a way to migrate existing partition/hard disk data
> without lose.

You'll need to make a backup of the data, erase the partition, create
an encrypted one in its place, and restore.  You can't encrypt the
partition in-place with GELI or GBDE.


pgpchWlGwlINP.pgp
Description: PGP signature


Re: RAID-1 as back-up

2005-06-03 Thread Alec Berryman
Hans F. Nordhaug on 2005-06-04 00:26:20 +0200:

> I would like to use RAID-1 as a back-up solution. If one of the disk
> breaks I would like my server to continue to run from the other
> disk.

Just as fair warning, you should not rely on RAID as a 'backup' like
you would rely on writing to removable media and storing off-site.  If
someone cracks your computer and you want to go back to known good
snapshot, you're out of luck; if you accidently overwrite something,
RAID won't help you.

> I'm running 5.3 - what do you recommend - gvinum, ccd, others? What
> is the definitive howto for the recommend solution.

You should use gmirror.  There's an excellent guide -
http://people.freebsd.org/~rse/mirror/.  I've been using gmirror for
about half a year and have had no problems.


pgpxpx0468PZt.pgp
Description: PGP signature


Re: sshd on 5.4-STABLE broken!?

2005-05-18 Thread Alec Berryman
Kipp Holger on 2005-05-18 14:19:53 +0200:

> - can I provide any additional data?

Are you in a position to restart sshd with multiple debug flags and
have it spew to the console? (see sshd man page, options '-D' and
'-d').  That, and connecting with ssh's verbose flag (1-3 '-v's), will
probably give you a good starting point.  From what you said in your
email, I don't believe you tried that.


pgpd4wFNDLJ51.pgp
Description: PGP signature