[Dirvish] Dirvish speed and security

[Leopold Palomo Avellaneda]

Wooooww!!

How many questions!!!!

A Dilluns 26 Maig 2008, Eric Mountain va escriure:
> On Monday 26 May 2008, Shawn (Red Mop) spake thus:
> > List of questions:
> >
> > What kind of link are you backing up over?

I don't understand the question. I have a server (dell server with a raid5 
with the homes of my users) and I'm doing a backup to a external hd via 
network.

> > Are you backing up over nfs, or rsync/ssh?

nfs

> > Are you using ssh (-C) or rsync (-z) compression?

ummm,
index: gzip but I have not found any other parameter. I'm using the default 
options of the debian package.

> > Do you have the --whole-file or --checksum settings selected?

nops
> > How much I/O are the drives containing the file systems in question under
> > during the backup period when the backup is not running compared to how
> > fast they can go?

The drives are in a relax position because no one is working at that time, so 
no big process or whatever. In the morning with all the users working with 
their homes via nfs, etc, I can do a scp and it goes much more faster and a 
cp to the nfs mount.

> > What file systems are you using on the backup server and client?

the server is xfs and the client is ext3

> > What settings (size, journal type, mount options, block sizes, inodes,
> > etc) are those file systems?

/home the default and it was formated using defaults. The external backup disk 
is ext3 but I don't now the settings because it's an external drive.

> > How badly fragmented are those file systems?

no idea. Probably a bit because the server was formated and uselly intensively 
during the last 3 years.

> And:
>
> - What speed is the network you are backing to?

Gigabit lan both via gigabit switch.

> - What is the existing load on the network?

minimal at that time ... I hope!!

> - Have you tried measuring the raw capacity of your network in copying
> files? e.g. copying 1Mb files across the network repeatedly, what is the
> sustained throughput (esp. at the times during which your backups run)?

so fast. I have moved files, isos and ok.

> - Is there traffic shaping or any other bandwidth limiting technology on
> the network that might have an impact?

No, it's a little lab with one server, several clients and a overflowed system 
admin that try to keep all in order!!!

Regards,

Leo


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