Re: hot-plug HDDs

2003-12-02 Thread chris bayley
Jim Cheetham wrote: On Wed, 2003-12-03 at 09:55, Dave Lane wrote: I have tried removable USB drives (Dick Smith sells the caddies for about $160 which take any 3.5" IDE drive), but had major problems with USB driver support (USB2 led to consistent crashes, USB1.1 was flakey and so slow as to

Re: hot-plug HDDs

2003-12-02 Thread Jason Greenwood
The other option is to get a USB2 HDD unit that accepts 2.5 in laptop drives. Our Image Tank units work great under Linux and are hot swappable. The drawback is price as well as the limitations of 2.5 in drives. BUT, I am just throwing out all the options here. It just appears as an extarnal HD

Re: hot-plug HDDs

2003-12-02 Thread Michael JasonSmith
On Wed, 2003-12-03 at 10:05, Jim Cheetham wrote: > Unfortunately, even the 2.6.0_test11 kernel that I have been using has > been failing to write to the disk reliably. > > However, in the interests of testing I tried the disk on my iMac (only > USB1). That also failed after writing a couple of Gb.

Re: hot-plug HDDs

2003-12-02 Thread Matthew Gregan
On Wed, Dec 03, 2003 at 09:55:19AM +1300, Dave Lane wrote: > Hi folks - unfortunately, in general IDE hotswapping is not possible due > to limits to the IDE architecture. Moreover, most BIOs can't deal with > drive geometry changes after boot... Note, I'm not aware of any IDE The OS couldn't

Re: hot-plug HDDs

2003-12-02 Thread Jim Cheetham
On Wed, 2003-12-03 at 09:55, Dave Lane wrote: > I have tried removable USB drives (Dick Smith sells the caddies for > about $160 which take any 3.5" IDE drive), but had major problems with > USB driver support (USB2 led to consistent crashes, USB1.1 was flakey > and so slow as to be unusable) in

Re: hot-plug HDDs

2003-12-02 Thread Dave Lane
Hi folks - unfortunately, in general IDE hotswapping is not possible due to limits to the IDE architecture. Moreover, most BIOs can't deal with drive geometry changes after boot... Note, I'm not aware of any IDE RAID cards that support hot swapping either - it would require significant additi

Re: hot-plug HDDs

2003-12-02 Thread Jim Cheetham
On Wed, 2003-12-03 at 09:26, CF wrote: > On Tue, 2003-12-02 at 20:11, Jim Cheetham wrote: > > The cradles are fine, but I'm not confident about introducing an IDE > > drive while the machine is powered up. I suppose if that worked it'd be > > fine :-) and in fact in the short term that's the rout

Re: hot-plug HDDs

2003-12-02 Thread CF
On Tue, 2003-12-02 at 20:11, Jim Cheetham wrote: > On Dec 2, 2003, at 6:15 PM, chris bayley wrote: > >> On Tue, Dec 02, 2003 at 05:00:30PM +1300, Jim Cheetham wrote: > >>> I've been playing with an IDE to USB2 unit, and trying to store about > >>> 50+Gb onto it, at reasonable speeds. > > > > What a

Re: hot-plug HDDs

2003-12-02 Thread Chris Hellyar
Hi-ho, Don't mean to be picky, but sca SCSI drives are hot swappable, by themselves but as a backup medium they'd be a tad expensive! The only options for IDE are to either buy an IDE raid controller, which tricks the OS into thinking the drive is still there when it fails (is unplugged) or turn

Re: hot-plug HDDs

2003-12-02 Thread Volker Kuhlmann
> The cradles are fine, but I'm not confident about introducing an IDE > drive while the machine is powered up. Good, and I strongly suggest you keep it that way. ;) Connecting/disconnecting an IDE bus while it's powered up is liable to fry controller, disk, or both. Those cradles have a lock for

Re: hot-plug HDDs

2003-12-02 Thread Jim Cheetham
On Dec 2, 2003, at 6:15 PM, chris bayley wrote: On Tue, Dec 02, 2003 at 05:00:30PM +1300, Jim Cheetham wrote: I've been playing with an IDE to USB2 unit, and trying to store about 50+Gb onto it, at reasonable speeds. What about plain old IDE - in hot swap cradles ? The cradles are fine, but I'm no

Re: hot-plug HDDs

2003-12-01 Thread Paul Wilkins
On Tue, 2003-12-02 at 18:15, chris bayley wrote: > What about plain old IDE - in hot swap cradles ? Yeah that work, but - and there's always a but, I wanna be able to plug in any ol' drive and have it work. Period. Is that too much to ask? -- Paul Wilkins

Re: hot-plug HDDs

2003-12-01 Thread chris bayley
Matthew Gregan wrote: On Tue, Dec 02, 2003 at 05:00:30PM +1300, Jim Cheetham wrote: I've been playing with an IDE to USB2 unit, and trying to store about 50+Gb onto it, at reasonable speeds. Any details of a working configuration would give me hope ... I've heard lots of similar s

Re: hot-plug HDDs

2003-12-01 Thread Matthew Gregan
On Tue, Dec 02, 2003 at 05:00:30PM +1300, Jim Cheetham wrote: > I've been playing with an IDE to USB2 unit, and trying to store about > 50+Gb onto it, at reasonable speeds. > Any details of a working configuration would give me hope ... I've heard lots of similar sad stories--things don't look p

hot-plug HDDs

2003-12-01 Thread Jim Cheetham
Has anyone successfully set up a hot-pluggable hard drive under Linux here? The point is to have off-site backup volumes in units of 120Gb :-) I've been playing with an IDE to USB2 unit, and trying to store about 50+Gb onto it, at reasonable speeds. With EHCI drivers (under 2.6.0-test11) it all s