Gentoo Archives: gentoo-amd64

From: Mark Knecht <markknecht@×××××.com>
To: gentoo-amd64@l.g.o
Subject: Re: [gentoo-amd64] Re: initio seen, mt -f doesn't work
Date: Mon, 19 Dec 2005 17:51:12
Message-Id: 5bdc1c8b0512190949u187a88fdq23f731afbe70cdaf@mail.gmail.com
In Reply to: Re: [gentoo-amd64] Re: initio seen, mt -f doesn't work by Richard Fish
1 On 12/19/05, Richard Fish <bigfish@××××××××××.org> wrote:
2 > On 12/19/05, Drake Donahue <donahue95@×××××××.net> wrote:
3 > > usb2.0 external hard drive has to be feasible. less than a $100 for 80gb.
4 > > nominal 60MB/sec.
5 > > usb2.0\1394b external hard drive. less than $300 for 300 gb. nominal
6 > > 60MB\80MB/sec.
7 >
8 > Using what hardware? I've used more than a dozen different models of
9 > USB2/1394 hard drives on 4 different PCs and have never seen one
10 > exceed 30MB/s in actual thoughput, although the same disks installed
11 > internally exceed 60MB/s.
12 >
13 > -Richard
14
15 Yeah, you won't get much more than 30MB/S out of any 1394a drive on
16 Linux, and even then you may have to set gap count by hand to get
17 there. However, faster 1394 performance is available in Linux. Here's
18 my 1394b drive:
19
20 lightning ~ # hdparm -tT /dev/sdb
21
22 /dev/sdb:
23 Timing cached reads: 2252 MB in 2.00 seconds = 1125.44 MB/sec
24 Timing buffered disk reads: 172 MB in 3.03 seconds = 56.72 MB/sec
25 lightning ~ #
26
27 - Mark
28
29 --
30 gentoo-amd64@g.o mailing list

Replies

Subject Author
Re: [gentoo-amd64] Re: initio seen, mt -f doesn't work Richard Fish <bigfish@××××××××××.org>