I've had a few of the Fantom external Megadrives that have two 1tb
drives inside which can be switched between raid 0/1, jbod... On esata
in raid0 mode they are crazy fast. Peaking around 100 mbyte/sec. But
yeah USB sucks.
Regards,
Phillip Partipilo
[email protected]
On Sep 16, 2009, at 12:04 AM, Ken Schaefer <[email protected]> wrote:
eSata will be about 1.5x what you can get with USB only (assuming
you are copying to a single target disk). I've generally found that
USB2 peaks at around 15-20MB/sec, and eSATA is around 25-30MB/sec
(max)
With LTO4 - if you are copying from a single disk, then the
limitation will be the source, not the destination. Likewise with
restores, you'll probably be bottlenecked by the target if it's a
single spindle.
Cheers
Ken
-----Original Message-----
From: Sam Cayze [mailto:[email protected]]
Sent: Wednesday, 16 September 2009 1:41 PM
To: NT System Admin Issues
Subject: RE: Disk based backup
Wow! Had no idea. I've been on eSATA drives for years now, ditched
tapes for the speed and reliability.
Ken, do the restore speeds also show this type of performance?
Because ultimately that's what matters, right.
-----Original Message-----
From: Ken Schaefer [mailto:[email protected]]
Sent: Tuesday, September 15, 2009 10:36 PM
To: NT System Admin Issues
Subject: RE: Disk based backup
USB connected drives are way too slow. LTO4 alone should get you
5x-6x the speed of a USB connected drive (YMMV)
Cheers
Ken
-----Original Message-----
From: Benjamin Zachary - Lists [mailto:[email protected]]
Sent: Wednesday, 16 September 2009 9:14 AM
To: NT System Admin Issues
Subject: RE: Disk based backup
Why not just take some external drives and mount them in whatever
you use (BEX/UB etc) and rotate the drives.
At 79 bucks for a 1TB SATA, or 89 for a USB version, you could do a
5 day rotation for 2 weeks for 900 dollars if you can get the data
on 1tb.
If you want to be more involved do the backups with deltas so you
only do changes throughout the week and should be good. With the
drives being so fast restoring through 3-4 usb drives isn't really a
big deal, not like waiting 30 mins for cataloging a tape..
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