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Old 02-11-2005, 05:58 PM   #1
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Registered: Jan 2005
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IDE HD Hot Swap

Hello all.

I'm trying to build a small server for a small network that I have. I have one 40GB root drive and another 40GB for backup. I'm running ArchLinux w/Kernel 2.6.10. I went out an bought one of those removable hard drive cases for the backup drive. I was wondering, does Linux support IDE hot swap, and if so, is there anthing special I need to do to get it to hot swap correctly? I know that it works under Win2000 server - when the drive is removed, an attempt to write to it will result in a "Delay Write Failed", but nothing else very seiours - it handles re-plugging fine. I have meesed around with it a little in Linux, and didn't have great results. I boot up with the drive inserted and activated. Linux detects it. I format it, write to, etc. I then umount it, remove the drive, and, upon replugging it, get a totla system lockup when I try to remount it. As well, this also screws up the disk filesystem in that none of the data written to it is readable, and a disk reformat is needed. Obviously, this is not acceptable. I know that Arch uses udev, would something else work better? I have tried also unplugging the drive without dismounting it, and the result is the same.

Any suggestions? If this doesn't work, alas, I might be forced to return to M$ windows, which would really suck.
Old 02-11-2005, 06:29 PM   #2
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There are controllers that specify hot swappable and linux compatable but I didn't find anything else.

IMHO unless the IDE controller is hot swap capable you shouldn't do it no matter what distro. You could damage the drive or the motherboard.
Old 02-11-2005, 07:54 PM   #3
Registered: Jun 2004
Location: Lawrence, KS
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IDE hot swap

Man, you are really into interesting stuff.

I just had to post on this so I can keep up with how this turns out.

As a matter of fact there are some things not intended to be hot swap that you can actually get away with, once or twice. Some time ago
I hot swaped a modem twice in one day. It was a day I should have stayed in bed.

Nevertheless, I have spent some big bucks on SCSI stuff just so I could do what you want to do.

If you can't hot swap a IDE drive, you are returning to Windows? Wow.


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