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schmichael
Joined: 14 Mar 2004
Posts: 116
Location: Peoria, IL
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| Posted: Fri Jul 30, 2004 4:27 pm Post subject: Feature Request: Hot Swappable Drives |
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First of all, I just upgraded from a 96 to a 128 without a hitch, and I couldn't be happier. Thanks for the great service Chris!
Now on to business: I know this is probably extremely difficult to accomplish, and it will probably never happen.... but a guy can dream, right?
Make drives hot swappable. Meaning when I got 1.5 extra gigs of space with my upgrade, let me partition it later and add it to my running Linode without a reboot.
So maybe this wouldn't be that useful except every so often for morons like me who don't think of creating the disk images before the migration... *sigh*
...I'm off to reboot... |
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asura
Joined: 03 Jan 2004
Posts: 71
Location: Oregon
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| Posted: Fri Jul 30, 2004 6:20 pm Post subject: |
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| I wouldn't mind if we were able to re-size our disk images while the linode was booted, then we could reboot and our disks will be good to go. To have to shut down the linode, resize the image, and then boot it back up takes a lot of downtime for the linode. |
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adamgent
Joined: 23 Jun 2003
Posts: 261
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| Posted: Sun Aug 01, 2004 7:14 pm Post subject: |
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Hi All,
Using hot swappable drive is possible if I recall correctly from converstions on IRC, I believe you can change any settings memory, available drives etc.
As for the resizing of drives while the system is booted I can not think of anything worse.
What happens if someone reads or writes to the drive while it is been resized it would create loads of problems.
Adam |
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fajar
Joined: 23 Jul 2004
Posts: 14
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| Posted: Tue Aug 03, 2004 5:40 am Post subject: |
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UML-wise, adding or removing a "drive" without reboot is possible. That is, if you take care to properly unmount it before removing. All you need is access to uml_mconsole, which you don't have on Linode :? You might be able to ask caker to add that functionality to lish or web interface; It won't hurt to ask.
As for resizing, reiserfs filesystems can grow online, without the need to unmount. Shrinking it is not that easy though. Linode's kernel 2.6.7 has reiserfs support on (don't know about 2.4 series). So you see, there IS a use for online resize after all :) |
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