Re: [Bacula-users] Again about concurrent jobs...

[Kern S. <ke...@si...>]

Hello,

Thanks for the scoop on Arkeia. It makes me feel
better that Bacula doesn't yet have a nice
GUI.  I think we can do much better than what they
have come up with. =20

I've feed the speed issues into the manual. =20

Good luck with Bacula.

Kern

On Wed, 2003-07-30 at 23:56, Robert L Mathews wrote:
> At 7/30/03 12:32 AM, Kern Sibbald wrote:
>=20
> >By the way, could you elaborate on why Bacula is more
> >efficient than Arkeia and why it is more understandable.
>=20
> Well, I'd be here until the end of time if I provided a complete list  :-=
)
>=20
> An incremental backup of my local server in Bacula completes=20
> significantly faster for me than it did in Arkeia. The server is a 540 GB=
=20
> RAID 5 array of four IDE disks, with 60 GB used, with approximately=20
> 40,000 files changed each day out of 1.5 million.
>=20
> I don't know exactly why it's so much faster, but I suspect it's due to=20
> the fact that Arkeia stores catalog information in a large number of=20
> individual files on the same disk array, and the catalog disk I/O=20
> interferes with the speed that it can read the actual files. I might have=
=20
> been able to speed this up somewhat by putting the Arkeia catalog info on=
=20
> a separate physical disk, but with Bacula, I didn't need to.
>=20
> Bacula also does catalog disk I/O in the form of MySQL reads and updates,=
=20
> of course, but I think MySQL handles them much more efficiently because=20
> it's just accessing a file that's already open and partially cached in=20
> memory.
>=20
> Aside from the fact that my incremental backups now complete in less than=
=20
> 1/4 of the time, I can simply listen to the tape drive: even with full=20
> backups, the drive is busy in much longer increments, without anywhere=20
> near so many pauses.
>=20
> Regarding usability... have you used Arkeia? <shudder> The thing was=20
> apparently designed by someone who thought shiny baubles =3D=3D interface=
=20
> design. It's so freakish that the manual actually has a page of=20
> instructions telling you how to do things like close a window, because=20
> they don't use normal close boxes. It's just awful.
>=20
> --
> Robert L Mathews, Tiger Technologies
>=20
> "A professional in an ape mask is still a professional." -Marge Simpson
>=20
>=20
>=20
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