20 TB of diskbackup cost the same, no matter how you size it.
the licens is Based on how much disk space you allocate for diskbackups in
your data zone. ie between the server and storage nodes.
But I don't agree that diskbased backups are for larger filesystems only,
I use 2 36 GB disks to keep the incrementals and then stage them to tape,
the abuse on the tape drives are less this way, cause my incrementals are
very differrent in size, and some clients just can't keep the tape drive
steaming alone.
If you consider diskbackup just make sure the whole backup can fit on the
disks. even with the adv_file device you can't stage savesets that aren't
finished yet, so if u have 5 TB in one saveset you will need 5+TB of disk
space..
**************************************************
Med venlig hilsen / Regards
Kenneth Larsen
Steria
Tonsbakken 16-18
2740 Skovlunde
kel AT steria DOT dk - 44506261 - 26306261
**************************************************
"Maiello, Robert" <Robert.Maiello AT MEDEC DOT COM>
Sent by: Legato NetWorker discussion <NETWORKER AT LISTMAIL.TEMPLE DOT EDU>
16-09-2003 16:55
Please respond to Legato NetWorker discussion; Please respond to "Maiello,
Robert"
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
cc:
Subject: Re: [Networker] Advanced File Device Size
Thanks Riaan, Joel,
Does the advanced file device have to be a filesystem? .. or is it just a
raw veritas volume ie.. /dev/vx/rdsk/devdg/device1
If is uses uasm I can see it being a filesystem.
Riaan, are you saving that it does do compression when saving to one of
these devices..ie a 500GB device may hold
more than 500GB?
Joel, I agree with your device sizing but I believe the license is
tiered..
4 5TB devices may cost more in licensing than
20 1TB devices?
Thanks for discussing this.. I rather do that than try to implement the
devices only to find out the disk requirements were
way off.
Robert Maiello
Thomson Healthcare
-----Original Message-----
From: Joel Fisher [mailto:jfisher AT wfubmc DOT edu]
Sent: Tuesday, September 16, 2003 10:21 AM
To: Legato NetWorker discussion; Robert Maiello
Subject: RE: [Networker] Advanced File Device Size
That's why I think it makes good sense to have 4x5TB devices rather than
20x1TB or 40x500GB. I think the only way to do that is with vxfs/vxvm.
Joel
-----Original Message-----
From: Robert Maiello [mailto:robert.maiello AT MEDEC DOT COM]
Sent: Tuesday, September 16, 2003 10:08 AM
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Subject: Re: [Networker] Advanced File Device Size
Shawn,
For us non file device folks..
I imagine since it is not a tape drive that the volume is 500GB with no
compression taking place?
I have some clients that are 500GB+ in size.. I rely on the tape drive
compression quite a bit..I can't being to think the amount of file
devices
I would need to do my backups. I would need to stage the fulls to tape
almost immediately after they are backed up ??
Robert Maiello
Thomson Healthcare
On Tue, 16 Sep 2003 08:49:41 -0500, Shawn Cox <shawn.cox AT PCCA DOT COM>
wrote:
>I'm Windows based, so may not apply. I have 2 500GB devices and one
200GB
>device. Works nicely.
>--Shawn
>
>----- Original Message -----
>From: "Joel Fisher" <jfisher AT WFUBMC DOT EDU>
>To: <NETWORKER AT LISTMAIL.TEMPLE DOT EDU>
>Sent: Tuesday, September 16, 2003 8:43 AM
>Subject: [Networker] Advanced File Device Size
>
>
>Hey All,
>
>
>
>Anyone using AFDs as their main targets for backups? How large did you
>create your devices. It seems to me that the design of the AFD is
>geared towards very large devices. Anyone using a vxvm managed volume
>cooked with vxfs as an AFD? What size volumes did you go with?
>
>
>
>TIA,
>
>
>
>Joel
>
>
>--
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