auto-rebuild RAID mirrors

[Tom Buskey]

On 4/20/07, Derek Atkins <warlord at mit.edu> wrote:
>
> Quoting Tom Buskey <tom at buskey.name>:
>
> > Sorry for top posting.  The gmail blackberry agent only let's me type
> > above the original.
> >
> > Yes, I get that in linux/solaris via NFS and cygwin via samba.
> >
> > I haven' tuned but I don't think I'm way off.  I've read that 60 MB/s
> > for backups over GigE is about the limit.  I'm using cheap gear.  I've
> > measured 30 MB/s at work with cisco switches and a high end SAN.
> >
> > The compaq delivered only 1-2 MB/s slower over the net vs local as well.
> >
> > I need to do some tuning, but I don't think I'd get above 30 MB/s on
> > the solaris box.
>
> So it's a Solaris server and a linux client and you see 20MB/s over
> NFS?   For what size files?
>
> Have you tried a Linux NFS server?



I have 4 machines.  1 Solaris 10 NFS/Samba server.  1 Fedora 5 NFS/Samba
server, 1 ubuntu laptop, 1 Windows XP desktop with Cygwin.  All on gigabit.

I've been doing this on the client: dd if=/dev/zero bs=1048576 count=1024
of=<somewhere on fileserver>
I've tried all 4 as clients to either of the servers via NFS and Samba.
The laptop client is slower, but it's a PCMCIA gigabit ethernet so I'd
expect it.



-derek
>
> --
>        Derek Atkins, SB '93 MIT EE, SM '95 MIT Media Laboratory
>        Member, MIT Student Information Processing Board  (SIPB)
>        URL: http://web.mit.edu/warlord/    PP-ASEL-IA     N1NWH
>        warlord at MIT.EDU                        PGP key available
>
>
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