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F.O.A.D.

On 9/8/13 12:21 PM, wrote:
On Sun, 08 Sep 2013 10:18:02 -0400, "F.O.A.D." wrote:

On 9/8/13 10:07 AM, wrote:
On Sat, 07 Sep 2013 22:03:19 -0400, Earl wrote:

wrote:
On Sat, 07 Sep 2013 16:15:04 -0400, "F.O.A.D." wrote:

Why not RAID them? With 4 drives you can set up a fairly high
efficiency array and have a soft failure of any single drive. With
some controllers you don't even need to bring the system down to swap
out the bad drive. The whole thing is invisible to the OS.
SATA hardware itself is hot swap capable.

He can't afford to pay his taxes. Do you really think he can afford a
$1500 Raid controller?

$1500?

More like $40 and most SATA controllers support RAID. You may have to
pay a little more for RAID 5 but not much

My little server is running under RAID. Something called Synology Hybrid
RAID (SHR) with data protection of 1 disk fault-tolerance. I'm not sure
what the hell that means, actually.

That does sort of look like RAID 5.
Is that "backup" drive actually just the conglomerate "wasted" drive
in a RAID array?
Basically RAID 5 writes "stripes" across all of the drives in the
array and the way they are laid out, you have one more drive than the
amount of data you can store. When you lose one, the data can be
recovered from the stripes on the other drives.
You can hot swap out the bad one and the system will restore the array
while you work.

That sort of sounds like the description I sort of read and sort of
understood on the synology site. I think.

Oh...the cheapo Seagate drive in my iMac was replaced with an
apple-branded drive (shows up as an apple branded drive) that allegedly
is a twice the price Hitachi Ultrastar drive that is "enterprise-rated"
for servers. That from a fellow on one of the apple forums who had a
similar problem and whose drive was replaced by one with the same apple
description and model number.

If apple updates the iMac substantially this fall or in 2014, I'll sell
this one and get the upgrade, especially if it has a large capacity SSD
instead of the combo apple now is using in the latest iMacs.