Veritas-bu

Re: [Veritas-bu] Remommended maximum # of drives per media server.

2009-07-20 07:45:14
Subject: Re: [Veritas-bu] Remommended maximum # of drives per media server.
From: Justin Piszcz <jpiszcz AT lucidpixels DOT com>
To: "Clooney, David" <david.clooney AT bankofamerica DOT com>
Date: Mon, 20 Jul 2009 07:41:55 -0400 (EDT)
Hi Dave,

That depends on how much throughput you can drive through the 
motherboard/network/disk.

LTO-3 = 90MiB/s for compressed data
LTO-4 = 120MiB/s for compressed data

(when rating, people usually rate for 180MiB/s and 240MiB/s to account for 
2:1 compression)

So if you have 10 gigabit ethernet (or) a fast disk array, you need to 
make sure there is enough bandwidth (today, PCI-e lanes) on the 
motherboard to handle how many drives you plan on putting in a server.

This is just my opinion:

Minimum drives per media server: 2 (to faciliate a restore incase one 
drive goes down and you are not using the FORCE_RESTORE media server 
directive).

LTO-2 = 2 drives per server (hp dl38[0-5]* class + 1gbps)
LTO-3 = 4 drives per server (same class + 10gbps)
LTO-4 = 3-4 drives per server (if same class of hw + 10gbps)

What kind of configuration(s) does everyone here use? How many drives per 
media server?

Justin.

On Mon, 20 Jul 2009, Clooney, David wrote:

> Hi All
>
>
>
> Does anyone know the symantec maximum number of recommended drives per
> media server?
>
>
>
> Regards
>
>
>
> Dave
>
>
>
>
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