Thread (21 messages) 21 messages, 11 authors, 2008-11-14

RE: Tips for good hard drives for a home server

From: Henry, Andrew <hidden>
Date: 2008-11-13 12:41:38

Huh!?

RAID 0 is mirroring isn't it??  If one drive fails, you still have the other one with the mirrored data to recover from?  You're thinking of RAID 1.

--andrew

andrew henry
+46 (0)40-251144

-----Original Message-----
From: linux-raid-owner@vger.kernel.org [mailto:linux-raid-owner@vger.kernel.org] On Behalf Of
Ryan Wagoner
Sent: 13 November 2008 13:36
To: linux-raid@vger.kernel.org
Subject: Re: Tips for good hard drives for a home server

Actually a single drive is more reliable than 2 drives in RAID 0. If
either drive fails all your data is gone. RAID 0 is intended for
performance only. Personally I would buy the non enterprise class
drives and get 3 for the price of 2 and do RAID 5.

Just a thought.

Ryan

On Thu, Nov 13, 2008 at 7:11 AM, Henry, Andrew [off-list ref] wrote:
quoted
quoted
Any reason you are using RAID 0 for your server? Normally when I think of a server reliability
comes to mind and RAID 0 doesn't offer any.
quoted
quoted
I'm assumming you make nightly or weekly backups?

Im using RAID 0 because I am not willing to shell out for several drives.  2 at once is my
breaking point.  This is only a *home* server, and in my opinion, I think im already being way
more conscious of reliability by choosing RAID 0 compared to average Joe that goes for a
Windows Home Server with a single hard drive
quoted
I do not currently have backups of my RAID 0 array: it is being used *for* my backup sets.  My
data is stored on my desktop PC at the moment and im doing incremental tar backups to my RAID
0 disk.  There are other data on the array that I do not have on my desktop, but I have original
media for these (music/movie library) and loss of this would be more inconvenience of having to
rip the discs to hard drive again (very time consuming).
quoted
quoted
i recently bought the 2 of the WD RE3 750GB and using them with linux
raid level 1. time will only tell how these hard drives hold up. but
aside from the Velociraptos (which only go up to 300GB) these seem to
be top quality in their line.
I've looked at the specs of the WD RE3, the Seagate ES.2, the Hitachi Ultrastar and Samsung
Spinpoint F1, and the RE3 does seem to have the edge.  It is double the cost of the drive I was
considering but thanks to all the tips I received, I think I will go with the RE3.
quoted
One thing im not sure of: Is load/unload cycle equivalent to start/stop count?  WD has load
cycle of 300.000 but Hitach/Samsung only 50.000 for 'start/stop count'.
quoted
--andrew
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