[volunteergrid2-l] Should we increase the node minimum capacity?

[Shawn Willden]

Agreed.

I thought I'd mentioned that issue in this thread already.

I don't think the price spike is going to last long, but I agree that we
shouldn't expect anyone to buy a new drive until it's past.

I kind of lucked out in a backhanded way... I had a 500 GB drive that was
showing some SMART errors and had suffered a couple of transient failures,
so I just replaced it with a new 2 TB drive.  The larger drive also allowed
me to rearrange my storage a bit, so my RAID5 volume group actually grew
from 1.5 TB to 4 TB.  So I increased my node capacity to 1 TB and still
have 2 TB of RAID5 that isn't even allocated to any logical volumes.

Aside:  RAID5 is fine for a Tahoe node -- RAID0 would be fine -- but I
don't recommend RAID5 for important data unless you know you have good and
reasonably-fast backups.  RAID5 has a fatal flaw, IMO, in that if one drive
dies and any other drives are close to having problems the
resynchronization process that must be performed to integrate a replacement
for the failed drive is very likely to cause the almost-failing drive to
kick the bucket, which destroys all your data.  My important data is on
RAID6, with a hot spare.  And eventually I'd like to get all of it backed
up to VG2, also.

On Tue, Nov 8, 2011 at 9:39 AM, Marco Tedaldi <marco.tedaldi at gmail.com>wrote:

> On 02.11.2011 21:08, Shawn Willden wrote:
> > So, what do all of you think?  Is it feasible to raise the minimum node
> > size to 750 GB?  Or 1 TB?
>
> I just wanted to note one thing:
> It seems to be the worst time right not to buy Harddisks. Here,
> 2TB-Disks have had a 100% increase in price within the last two weeks!
>
> This is due to the floods in thailand.
>
> Please let's wait for the prices to drop again before we make the bigger
> Storage mandatory. I'm quite sure, that in 6months froom now on the
> prices will be down again.
>
> best
>
> Marco
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-- 
Shawn
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