|
For what it's worth, pertinent to this conversation, I talked a while back with the technical guys
at Glyph, which makes high-reliability hard drive enclosures for audio/video applications. They told
me a key thing for drive reliability is the power supply in the enclosure/NAS device and also
running the unit on reliable power, preferably from a server-grade voltage-control system. They said
the power spikes are really bad for hard drives, as are low-voltage conditions (which cause heat
problems and can blow up cheapo capacitors that are being over-stressed in a high current
situation). They told me, to be double-dead sure, run studio hard drives and computers through a
voltage-control system and also with a high-quality battery backup/filter. In my experience, this
has worked well, in the case of all my hard drives and computers. But drives fail all the time, so
lots of redundancy is the key to everything.
Could someone explain why a somewhat antiquated magnetic tape-based storage system is preferable to
several copies across several hard drives? I just can't see any sense in using tape systems anymore
for data security, but I'm not a computer-storage expert, just a guy who stores a lot of data.
-- Tom Fine
----- Original Message -----
From: "Hood, Mark" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, January 27, 2016 6:41 PM
Subject: Re: [ARSCLIST] LTO vs HDD
Hi Richard,
Thanks as always for sharing your experience and insights on all of these
topics.
Would you be comfortable sharing the make and model of the RAID-6 NAS
units you are using, and any comments about how well they have performed
to your expectations?
Thanks,
Mark
Mark Hood
Associate Professor of Music
Department of Recording Arts
IU Jacobs School of Music
On 1/27/16, 3:36 PM, "Association for Recorded Sound Discussion List on
behalf of Richard L. Hess" <[log in to unmask] on behalf of
[log in to unmask]> wrote:
>Hi, All,
>
>I saw this thread and was going to ignore it, but decided not to once I
>found out that RDX was HDD-in-an-otterbox merci, Henri, and thanks for
>the image, Lou. Otters are wonderful--see "Ring of Bright Water" (The
>book) and Point Lobos State Park.
>
>LTO was around while I was still doing broadcast consulting and, at the
>time (late 1990s, early 2000s).
>
>I struggled long and hard about how to store things and realized if I
>were going to become involved with LTO, I would need two drives (how
>else can you be even remotely certain that your tapes are readable once
>your single drive dies--I certainly saw that in the early days of PC
>tape backup. At that point, the cost becomes excessive.
>
>My philosophy now is: Any data I want to keep does not live solely on a
>PC.
>
>I have two in-house RAID-6 NAS units, one backing up the other; an ammo
>case of 2.5-inch HDDs off-site (2 TB 2.5-inch USB 3.0 drives are pretty
>economical these days and are USB-powered).
>
>One son has been migrated to the cloud where Dropbox backs up and
>mirrors his two on-site laptops. Here, I harvest all new files (but not
>updates to prevent pollution of existing files) and store them on my
>RAID-6 NAS units to protect against a Dropbox failure or hacking. The
>other son will do it soon, but the first one is potentially going far
>away to school next fall for his Masters (Wichita and Edmonton are on
>the list) so I wanted to get some closer-in history with the system.
>
>RAID-6 allows the failure of any two disks without losing data and the
>data does not have to be chopped up into 1 or 2 TB chunks as it does
>with HDDs.
>
>I do not keep CF/SD cards, I copy and verify the copy and then recycle
>them.
>
>Cheers,
>
>Richard
>
>--
>Richard L. Hess email: [log in to unmask]
>Aurora, Ontario, Canada 647 479 2800
>http://www.richardhess.com/tape/contact.htm
>Quality tape transfers -- even from hard-to-play tapes.
|
