Bacula-users

Re: [Bacula-users] Slow disks RAID10 vs Fast disks RAID5

2012-11-22 19:55:23
Subject: Re: [Bacula-users] Slow disks RAID10 vs Fast disks RAID5
From: John Kenyon <JKenyon AT bgwgroup.com DOT au>
To: "bacula-users AT lists.sourceforge DOT net" <bacula-users AT lists.sourceforge DOT net>
Date: Fri, 23 Nov 2012 10:50:59 +1000
Hi James,

> If you are backing up over 1Gbit/s ethernet then you require a storage that
> can write at a maximum of 100mbytes/s and either configuration should be
> more than capable of handling way more than that, assuming that it never
> gets ridiculously fragmented. If you use RAID5 then I recommend a hardware
> RAID controller with battery backed write cache, although it's less of a
> requirement for "streaming" storage than random access database storage
> where small (< stripe size) writes are frequent.

Backups will be done over 1Gbit Ethernet. 

Hardware RAID controller used will be a Dell PERC 710p, this has battery and 
1GB cache


Cheers, John.


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