Tim Jones
Forum Replies Created
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That’s 2 drives, so it will be closer to 200MB/sec. Again, more spindles, more performance for both interfaces (up to the 400MB/sec max of USB-3)
Tim
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Tim Jones
CTO – TOLIS Group, Inc.
https://www.tolisgroup.com
BRU … because it’s the RESTORE that matters! -
Something to remember –
Regardless of how fast Thunderbolt is versus USB 3, if you have a single disk in both, you’ll see less than 100MB/sec MAX throughput. The only time that you will see improvements (and where Thunderbolt beats USB-3 hands down) is in multiple drive solutions.
I have two 4 drive, 7200RPM Seagate Constellation 4TB unit loaded chassis (16TB each) – one Thunderbolt and one USB-3. Both are configure with Apple’s software RAID 0 (striping) for speed. I’ll let Black Magic Disk Speed Test provide the differences.
USB-3:
Thunderbolt:
Same physical drives, same software RAID 0 format, quite different performance.
However, SSD numbers start to balance things out in the single drive scenario. Here’s a USB-3 example of a SamSung EVO Pro 850 on a USB-3 connection. Note that it exceeds the performance of the 4 spinning drive stripe on Thunderbolt:
The moral of the tale – multiple, striped drives are always faster than a single drive – more spindles = more speed – and SSD trumps HDD in every situation.
Tim
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Tim Jones
CTO – TOLIS Group, Inc.
https://www.tolisgroup.com
BRU … because it’s the RESTORE that matters! -
Hi Kiki,
The issue is simply one of performance. That comment was made in reference to running 2 tapes simultaneously on 2 drives.
The point is that if you can’t read the data from the source disk faster than the tape drive can write, the tape drive will suffer from underruns which causes shoe-shining and slows the writes even further. The slower your disk, the slower your backup / restore operations.
Tim
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Tim Jones
CTO – TOLIS Group, Inc.
https://www.tolisgroup.com
BRU … because it’s the RESTORE that matters! -
Black Magic Disk Speed Test is your friend (or enemy) in this case. Grab a copy from the MAS or BMD’s site and check for yourself.
Tim
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Tim Jones
CTO – TOLIS Group, Inc.
https://www.tolisgroup.com
BRU … because it’s the RESTORE that matters! -
Unfortunately, FW800 tops out at a meager 75MB/sec. Even a single, 7200RPM disk can saturate that bandwidth, so no amount of RAID or SSD is going to improve on your performance.
Basically, so long as you’re stuck with FW800, your connection is going to be the bottleneck.
For security, RAID 5 is a must for storage and backups under your current restrictions.
Tim
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Tim Jones
CTO – TOLIS Group, Inc.
https://www.tolisgroup.com
BRU … because it’s the RESTORE that matters! -
Not the Quiet Comforts – they introduce noise canceling that can seriously modify your actual sound. I like the SoundLink (more costly) or the SoundTrue (mid-priced). Those two are just plain over/around the ear headphones.
On the Sennheiser side, I like the HD380Pro (same price range as the SoundTrue). Or, if your budget permits, the HD600 or HD650’s are unreal.
Tim
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Tim Jones
CTO – TOLIS Group, Inc.
https://www.tolisgroup.com
BRU … because it’s the RESTORE that matters! -
I’m very partial to Bose or Sennheiser. What’s your budget?
Tim
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Tim Jones
CTO – TOLIS Group, Inc.
https://www.tolisgroup.com
BRU … because it’s the RESTORE that matters! -
You should see the number of 5 and 6 engineering sample drives that we ruined in the testing :). But, better us that you guys!
Tim
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Tim Jones
CTO – TOLIS Group, Inc.
https://www.tolisgroup.com
BRU … because it’s the RESTORE that matters! -
Unfortunately, that’s not true. There are major differences between the processes used by the different manufacturers. After testing wear and retentivity of the major brands for over 3 years of heavy use, we (and HP) have determined that the FujiFilm and the formulation called for by HP on their tapes are the best.
Tim
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Tim Jones
CTO – TOLIS Group, Inc.
https://www.tolisgroup.com
BRU … because it’s the RESTORE that matters! -
HP’s and FujiFilm’s have proven to be the most reliable and least destructive (head and transport guide wear) for “Green” media environments like M&E where tapes are often used once and then shelved.
These are the only brands that we recommend to our customers. We sell the HP branded tapes.
Tim
—
Tim Jones
CTO – TOLIS Group, Inc.
https://www.tolisgroup.com
BRU … because it’s the RESTORE that matters!
