[TAG] Backup Strategy
jj at franjam.org.uk
Sun Mar 21 01:07:15 MSK 2010
On Fri, 19 Mar 2010, Ren? Pfeiffer wrote:
> On Mar 19, 2010 at 2209 +0100, Karl-Heinz Herrmann appeared and said:
>> On Sun, 7 Mar 2010 02:53:20 +0530
>> Amit Saha <amitsaha.in at gmail.com> wrote:
>>> I am going to use it as a dedicated backup drive. Thanks in advance!
>> With that amount of data you do want protection against single disk
>> failure. So if the primary disk is not already a raid system you should
>> make the backup a raid 1 or 5.
> Don't use RAID5 with disks containing a large block number. The
> probability for a double-disk failure gets higher with the amount of
I think you will find, if you read all the comments on this article,
that many people, who appear reasonably knowledgable, think this is
Given the article was written in 2008 and disks have indeed got a lot
bigger, and are used in large raid5 arrays, I think we'd be hearing a lot
of squealing in the industry right now!
> Consider RAID6 or using RAID1 block devices as building blocks for
> logical volumes.
> jumping to mention this, no harm intended. :)
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