G-RAID with Thunderbolt an impressive performer
#1
Posted 18 April 2012 - 12:41 PM
#2
Posted 18 April 2012 - 01:55 PM
#3
Posted 18 April 2012 - 03:48 PM
A RAID-0 array with 2 drives is twice as likely to fail than a single drive. The last time I used RAID-0, about 5 years ago, it was with two brand new drives. I was lucky enough to lose only 1 week of man-hours when it went down, and nothing irreplaceable.
Like I said, that was the last time. Ever since then, I only use RAID-5 protection, and though individual drives have failed, I have not lost a single file.
Yes, this drive can do RAID-1, but it will be slow, and won't take full advantage of the Thunderbolt connection.
Buyer beware! Spend the money on better data protection. If you need performance and protection, get something that is RAID-5 compatible.
One note -- I know many people use these for render files. OK, you won't worry if the drive goes down. But do you want to spend days re-rendering?
The only viable use for something like this is for a scratch disk -- for caching in something like Photoshop or After Effects, where the data stored is not kept anyway.
#4
Posted 18 April 2012 - 09:21 PM
I ALREADY have two 2TB 7,200 rpm Hitachi drives... Why can't I get an enclosure--with thunderbolt--for a somewhat reasonable price!?
#6
Posted 19 April 2012 - 05:07 AM
#7
Posted 19 April 2012 - 05:19 AM
Never EVER use Raid 0 for storage. It's kind of ludicrous to suggest using it for Time Machine. Shoot, anything short of RAID 5 with multiple redundancy is living dangerously. There's a big market out there for an affordable tape drive solution. But tape companies know the money is in Enterprise. So we're still waiting for some innovation to give us fast, affordable, reliable backups.
This post has been edited by leicaman: 19 April 2012 - 05:20 AM
Nothing in all the world is more dangerous than sincere ignorance and conscientious stupidity. - Martin Luther King, Jr.
#8
Posted 19 April 2012 - 08:48 AM
GrahamAJones, on 18 April 2012 - 03:48 PM, said:
A RAID-0 array with 2 drives is twice as likely to fail than a single drive. The last time I used RAID-0, about 5 years ago, it was with two brand new drives. I was lucky enough to lose only 1 week of man-hours when it went down, and nothing irreplaceable.
Like I said, that was the last time. Ever since then, I only use RAID-5 protection, and though individual drives have failed, I have not lost a single file.
Yes, this drive can do RAID-1, but it will be slow, and won't take full advantage of the Thunderbolt connection.
Buyer beware! Spend the money on better data protection. If you need performance and protection, get something that is RAID-5 compatible.
One note -- I know many people use these for render files. OK, you won't worry if the drive goes down. But do you want to spend days re-rendering?
The only viable use for something like this is for a scratch disk -- for caching in something like Photoshop or After Effects, where the data stored is not kept anyway.
This is a simplistic view. RAID-0 should never be used where data integrity is of more importance than speed. But for capture volumes, or scratch space, or render targets, RAID 0 is fine. Render targets? Also fine- as long as you make adequate backups. But the key is backups. If you lost all your work, then your backups weren't adequate for the setup (weekly backups of production work are not adequate in any environment I've ever worked in). Understanding that RAID-0 is strictly about speed and not about redundancy is a major point, but most people dropping this much money on a drive likely have some understanding of that. RAID5 is not a backup, and only protects against drive failure (i.e. if someone writes over your saved file with garbage or your directory corrupts, you are just as out of luck). Backups are more important than ever now that drive capacities have gotten so huge.
This post has been edited by demani: 19 April 2012 - 08:49 AM
#9
Posted 19 April 2012 - 02:43 PM
According to Digital Heaven Video Space 3.0 for 8TB
736:13:43 of HDV 1080i,
167:37:37 of DVCPRO HD video,
88:09:23 of ProRes 422 HQ video
#10
Posted 20 April 2012 - 11:10 AM
It reminds me of Panasonic launching P2 cards. $500 for a 16GB card that could write at 400 or 500Mbs, while their cameras never needed more than 100Mbs. It's no wonder that within 12 months P2 adapters came online that housed fully capable SD Cards for a fraction of the price.
I'd save the money and build a Gigabit NAS (if working with the aforementioned codecs). Then I have a little, Unity-lite machine capable of feeding multiple clients.
#11
Posted 23 April 2012 - 01:51 PM
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